Fast reacting IAT sensor replaces stock sensor

[dudemaaan]

I've found a fast reacting air temp sensor to replace the slow stock sensor, I can get a good price if anyone is interested. There is a pretty detailed thread on the other forum, I'll go into more detail about it later. Right now i'm on my cell or i would post more. Pm or email me if you want one or more details. Dudemaaanownsanrx7@yahoo.com

[Brent]

Look forward to reading about how this works.

[dudemaaan]

Here is what was posted on the other forum by me.

"On and off over the last several months I've been looking for a fast reacting air intake sensor to replace the slow stock one. A brief overview can be found in the PFC section.

I finally found a part number, and it can be found online for a little over $50 shipped without pigtail. I have a friend that can get them to me for around $35 (I will pass this on to others) I went ahead and got one to test since I had the option of returning it if it didn't work. Well it came in yesterday and I did a series of tests according to the FSM to determine if it was a suitable replacement. Here is what I found.

Results:

FSM STOCK SENSOR RESISTANCE.............................NEW FAST REACTING SENSOR

@68 *F (20c) 2.20 - 2.70 Ohms..................................Tested @68 *F (20c) = 2.27 Ohms
@176*F (80c) 0.29 - 0.35 Ohms.................................Tested @176*F (80c) = 0.34 Ohms

As you can see the sensor falls in the acceptable resistance range for both temperature tests, it has the exact same resistance curve as the stock sensor! This means is we can use this sensor to replace the slow stock sensor, while still sending the ecu the correct temp readings. It's a perfect replacement.

Heat soak issues won't be an issue because the sensor changes so rapidly that once colder air goes past the IAT, the ecu knows this and can add the appropriate amount of fuel. The advantages are a safer, and more precise tune with less need for a safety net. It's commonly known that the stock sensor heat soaks, especially when sitting for awhile or in stop and go traffic. Then once you take off, because the stock sensor is sluggish it's still reading hot air when the air is actually much cooler. This means the tune is either now on the lean side, or if tuned with a large safety margin it's right where it should be. That means in some situations you're not making as much power, and some situations the engine is in more danger.

With a sensor that reacts quickly, you can tune the engine for what it needs based on the actual temperature and actual density of the air. Often times I had to wait several minutes after sitting in a parking lot before I could stomp on it because the AIT was reading way high and I didn't want to boost until they dropped where they should be.

The sensor uses the same thread pitch as stock, and a common bosch connector. If anyone else wants one send me a PM and I'll see about getting some more for other people. This will work on any ECU that uses the stock sensor, even including the stock ECU. I took some pics of the tests performed. If anyone wants more information or pics let me know."

I will include several pics that are scattered around on the other forum. This will include pics taken from my testing, pics of the exact same triumph senor found in my motorcycle, pics of my first order and shipment of sensors, and a graph comparing the reaction of the stock sensor to the fast sensor. Feel free to ask questions or PM/email me to get information on an exact price for the sensor and bosch connector shipped.
Brent

Please note the pics are not in any particular order, click to enlarge them.

http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00383.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00383.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00384.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00384.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00385.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00385.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00392.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00392.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00397.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00397.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00398.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00398.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_ResponseCurve.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=ResponseCurve.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00378.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00378.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00379.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00379.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC003701.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC003701.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC003741.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC003741.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00372.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00372.jpg)
http://i10.photobucket.com/albums/a145/dudemaaan/th_DSC00373.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=DSC00373.jpg)

[afgmoto1978]

I'm in!

[Brent]

Sounds like a very nice find. I like that you don't have to relocate it. How much are you selling them for?

[dudemaaan]

They are around 42 for both the sensor and connector shipped in the 48 states.

[Phoenix7]

Will this work on any 13B? or is it REW-specific?

[hades]

count me in.

[Brent]

Look forward to getting this on the car in a week or two.

[Herblenny]

I was talking to Dale about this..

I'm in!

[dudemaaan]

Will this work on any 13B? or is it REW-specific?

It will work with any setup that uses the same sensor as a stock fd. Some people have converted stuff over to use the pfc on older rx7s and this iat sensor would work.

[dudemaaan]

Everyone that ordered after the 22nd will be having their sensors shipped tomorrow. Any orders prior to the 22nd already went out.

[dudemaaan]

All sensors were shipped out monday. There were several that were ordered on and after the 22nd and i had to wait for more pigtails to arrive before shipping the orders out. So if you sent a payment no worries as your sensor is on its way.

[Brent]

Received mine. Look forward to putting it in.

[dudemaaan]

Awesome

[MOBEONER]

I also picked up this censor from him. I cant wait to install it.Thanks dude- for the 2nd time lol.

[afgmoto1978]

Got it, thanks, perfect timing since my stock AIT is acting up on me lately.

[dudemaaan]

glad to hear it guys

[RIZZXX7]

can i still buy this?

[dudemaaan]

Yes sir

[RIZZXX7]

get me some info

[dudemaaan]

Alright drop me a pm. Im on my cell right now and it's not letting me pm.

[afgmoto1978]

Installed, instantly idles smoother since the temps are reading accurately compared to my stocker. Once I install my new bumper I will drive around and do some data logs to see how it performs. Thanks.

http://rotarycarclub.com/rotary_forum/attachment.php?attachmentid=5856&stc=1&d=1247585997

[dudemaaan]

Awesome glad it's working well for you too

[mazdamaniac]

This sensor will most likely work on the RX-8 as well (the voltage ranges look identical).
So, for the boosted 8's, this is a great option.

FWIW, it will also work on the KL engine Mazdas (MX-3, MX-6, 626, 929, Millenia, etc.).

[dudemaaan]

Thanks for the info i didn't know the rx8 used the same resistance values as the rx7

[dudemaaan]

hey anyone done more testing using the new sensor? just like to hear the results people are having.

[PortedRotorTuner]

I'll take one if there still available.

Thanks,
~Luke

[dudemaaan]

Yeah I still have several available, drop me a PM or email if anyone is interested.

[fire85gslse]

I need one, hit me up.

[Smokey]

So I tried to go to the thread on the evil forum and update my post, but I cannot access it anymore....what happened there? I take it the little dispute with Johnathan F caused a ruckus?

I received my sensor and was able to put it in a couple of weeks ago. I'm quite happy with the performance. It was interesting that I installed it the day before I finished up my water injection install. Before the W/I I could do a 2nd thru 3rd gear pull and watch my intake temps go up about 5 degrees Celsius. After W/I they would stay rock solid even thru a 3rd and 4th gear pull. On the highway if I just roll into the boost enough to activate the W/I I can watch the temps go down.

[dudemaaan]

They said they deleted it cause it was free advertising and they don't allow it. It's no different then threads on widefoot mounts, hd water injection kits, and a dozen other products that are discussed over there. I was very unhappy about it since everyone was just getting theirs and starting to report back on the results.

Thanks for posting your results over here.

[Phoenix7]

They said they deleted it cause it was free advertising and they don't allow it. It's no different then threads on widefoot mounts, hd water injection kits, and a dozen other products that are discussed over there. I was very unhappy about it since everyone was just getting theirs and starting to report back on the results.

Thanks for posting your results over here.sounds like the new 7club. :dunno: I might end up ordering one soon. You still have some left?

[dudemaaan]

Yeah i still have some. Let me know when, and i'l get it out to ya.

[PortedRotorTuner]

I got mine in! Got it very quickly too. I won't be able to test it until the
spring though.

Thanks!!!

[NV02]

Got mine installed today. A bit of a pain to get to, but I uncovered a bad vacuum leak in the brake booster line in the process. Two birds, one stone. Gotta like that. Haven't driven it yet, but it started up and idled well. And measued the correct air temperature :-)

Dave...

[dudemaaan]

Good, glad everyone is getting them quickly. Look forward to hearing everyones results.

[DaveW]

I installed the sensor today. The only problems I had were getting my hands/fingers behind/under the UIM to remove the connector from the OE sensor, and to splice the new connector to the harness. I really like the new connector - it seems much easier to connect/disconnect than the OE.

I may be imagining things, but after heat-soaking on purpose to test the effect, I think the engine is now more responsive to throttle than it was with the OE sensor under similar conditions.

Thanks for your help in locating and selling these!

I'll keep you updated if anything interesting happens related to the sensor.

[dudemaaan]

I've had a few people say the same thing about better response. Are you on the stock ecu or pfc i cant remember? I would have to look again but i believe at a certain air temp the ecu starts pulling timing, with a faster sensor it would get back to cooler temps sooner and the timing increase could be why people are feeling the increased response. Either way the sensor works way better then stock and is only a good thing as far as the tune is concerned. Thanks for the feedback on it.

[DaveW]

I've had a few people say the same thing about better response. Are you on the stock ecu or pfc i cant remember? I would have to look again but i believe at a certain air temp the ecu starts pulling timing, with a faster sensor it would get back to cooler temps sooner and the timing increase could be why people are feeling the increased response. Either way the sensor works way better then stock and is only a good thing as far as the tune is concerned. Thanks for the feedback on it.

I have the stock ECU - what you said makes sense.

Dave

[DaveW]

They said they deleted it cause it was free advertising and they don't allow it. It's no different then threads on widefoot mounts, hd water injection kits, and a dozen other products that are discussed over there. I was very unhappy about it since everyone was just getting theirs and starting to report back on the results.

Thanks for posting your results over here.

I was wondering how your thread on this lasted as long as it did over there even though, IMO, you were providing a very useful service for all FD owners. If you were just discussing the sensor, but not selling it, I'm sure you would have been OK.

I'm not surprised that it was deleted. Once they made the decision to ban all ads from non-fee-paying entities, they pretty much had to treat everyone the same, no leeway allowed.

Whether or not they should have made that decision, is obviously a very hot topic.

[dudemaaan]

Yeah well it started out as a discussion. I was just trying to get one for myself and post the results of what I found. Then after I found it I listed websites where people could find them online, or if a few people wanted I could go through the same bike shop that I did to save people money. I just wanted other people to try it to gain more knowledge on it. I had no idea it would turn into so many people wanting one.

I made sure to do any transactions through PM. I see it as no different then people mentioning chucks notes and then PMing him to purchase the notes. Or the widefoot swaybar mounts thread I saw after my thread was deleted. Whether they like it or not people will bring up links to non vendors. There are lots of parts that venders don't have. Whether I provide people with a way to purchase them or they got the sensor used off ebay it should still be allowed to be discussed.

I think it really all went to hell once that other guy came in and was blatantly advertising. I personally feel there was a difference in what I was doing and what he was doing. But whatever. No good deed goes unpunished. I don't think it was anything personal, but I also don't think everyone or every situation is treated the same. If it was then one would ever go there anymore.

[DaveW]

Well, I don't blame you for feeling annoyed. The moderators over there probably started to get complaints from others about why were you allowed to advertise (even though you were probably not making a significant profit), and they weren't allowed to advertise.

In any case, what happened, happened, and there's not much you can do about it. It's not worth the effort to fight it.

Dave

[dudemaaan]

Yeah true

[Garfinkles Motor Works]

The other forum kicked me off saying I was selling parts, can you believe that .I got my senser ,Chad ordered two . THANKS I will install it soon ,and yes I painted it silver with Fusion plastic paint .My senser is mounted in the elbow injector bung screwed into a nylon plug that I made in the lathe 10 years ago .No heat soak with the old one,this new one should be very quick .

[dudemaaan]

Wow i didn't know you were kicked off the other forum. I knew you made some different parts, i think a tranny brace? I think as much help and information alot of us bring to the forums that things like that shouldn't be such a big deal. It's not like its spam. But anyway thats why i'm trying to get more members over here.

I'm glad you got the sensors and hope they work out well for ya'll, i'm sure they will! Look forward to hearing the results.

[Garfinkles Motor Works]

No tranny braces but an engine torque brace plus other things .See the vender section under Garfinkles Motor Works . I to like to see and know what others are doing ,making and finding to improve the cars .The other forum is just money hungery

[dudemaaan]

I had to take my UIM off to do a few things so I decided to add some pics with a small writeup of installing the sensor. I also redid the wiring to add a bosch protective boot to the IAT wiring. Basically cut the old connector off, solder or butt connect the new wires in place. Shrink wrap or tape the connections. I finished mine off with the protective boot and wire loom. My wiring was already extended from when I relocated my stock sensor so I left the wiring long. You can see where the new sensor goes on the 3rd intake runner. That's pretty much it, not much to it.

Be careful not to over-tighten the sensor, and if you can point the sensor so the air flows through the "cage" that is ideal. See pics for the prefered sensor rotation. I also used teflon tape to seal and add a slight heat barrier between the metal and sensor.
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01089.jpg
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01090.jpg
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01091.jpg
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01093.jpg

[PortedRotorTuner]

Nice Write Up! Thanks! :icon_tup:

[Garfinkles Motor Works]

I put my air temp sensor in the injector bung on the elbow,The old ones came with two injector bungs , I cut one off and put one of my blow off valves there .I made a nylon plug to go in the bung and the sensor screwed in to the nylon .I made a new plug for the new sensor today and mounted it and soldered in the new connector . the black ring on the plug is an o-ring to seal the plug .And yes I painted it silver .

[albertomg]

Dude - you got a new order

David and Brent - don't take it personally. Know that the community appreciates your efforts overall regardless of corporate ROI efforts.

[dudemaaan]

Today I went to the fair here in Brenham, TX. I had the car pretty heat soaked from driving slow looking for a parking spot. Was at the fair for about 3 hrs. When I came back out the sensor was reading 48C, I backed out of my spot and in under 30 secs of slowly leaving the temp already dropped to 40c. Got on the highway and it quickly dropped to 33c and held there. I remember with my sanded down stock sensor relocated to the elbow, if it was heat soaked to 48c it would just stay like that. Low speeds would take 10 mins to come down. Highway would drop it faster but still took way too long. Nothing like this new sensor. I was also able to make the temps increase on the highway just by letting off the gas. In mere seconds it would go from 33c to 38c then drop back down as I got back on the gas. So glad I switched the sensor out.

[Signal 2]

David,
As always your work looks clean and neat. And I like the touch of insulating the sensor from heatsoak through the use of the nylon. But it doesn't look like the sensor would be directly in the air stream. The difference may only be nominal, but ???

[HDP]

1 question...

would it be possible to remove the wire and terminals from the OEM connector and insert them in the new connector? or maybe use molex terminals on the OEM wire and insert them in the new connector? I would like to avoid splicing the new connector.

[dudemaaan]

I'm sure something like that could be done. If you find something that will plug into the stock connector you could use that. The sensor uses a bosch connector just like aftermarket injectors use to give you an idea of what you're working with. I'll look at my stock connector to see what options I can think of. Though I don't know why anyone would ever go back to a stock sensor after using the new one.

[Garfinkles Motor Works]

My nylon part is cut so the cage of the sensor is in the air stream .As Dude said the air should pass through the cage,I need to check that detail and turn it if needed .

[HDP]

I'm sure something like that could be done. If you find something that will plug into the stock connector you could use that. The sensor uses a bosch connector just like aftermarket injectors use to give you an idea of what you're working with. I'll look at my stock connector to see what options I can think of. Though I don't know why anyone would ever go back to a stock sensor after using the new one.

No, I wouldn't want to go back to the stock sensor, just want to retain the stock wiring in tact without any additional breaks/splices in the wires.

[dudemaaan]

No, I wouldn't want to go back to the stock sensor, just want to retain the stock wiring in tact without any additional breaks/splices in the wires.

Ah gotcha

[HDP]

OK... so how do I obtain one?

[dudemaaan]

I'll send you a pm.

[TitaniumTT]

I'm in....... for two actually. However, I have two concerns.

1) I'm running a Motec and need to know the calibration "scales" if you will. Is this a standard Bosch type sensor or what other details can you provide for me.

2) I'd be using it pre-intercooler to monitor charge temps, what is the max temp these can endure. We were afraid about melting plastic so we decided to use a coolant temp probe at first, as you can imagine, the response is abysmal. The datalogs show temp increases when in decel :lol:

[dudemaaan]

I'll try to answer the questions as best I can, and if need be I can do some testing to help fully answer them.

I'm not familiar with motec and the calibrations used. If it helps, the calibrations would be exactly the same as the stock FD iat sensor. I did list the resistance values at 20*c and 80*c earlier in the thread I don't know if that tells you anything or not but here they are.

Tested @68 *F (20c) = 2.27 Ohms
Tested @176*F (80c) = 0.34 Ohms

Given the information in those tests I don't think the temperature will accurately read past 200*F because the resistance will have reached 0 ohms. I think the probe can handle higher temperatures but just don't have the resolution needed to go that high.

The sensor is made by sagem for triumph motorcycles, it does uses a common bosch connector, but I'm not sure if bosch makes any identical sensors or not. I couldn't find any.

What are your pre intercooler temps? I know turbo's are capable of outlet temps over 300*F, but if yours are under 200* F it would probably work fine. Otherwise maybe a fast reacting EGT type probe would work, I'm not sure how accurate they are at temperatures that low is the only issue. Let me know if you have more questions I can help with.

[FC3S Murray]

Sensor works GREAT! Easy install and man does it live up to it's name. The sensor after a good heat soak @ 45*C dropped to 36*C in a matter of 45 seconds of driving and by 2 minutes it was back down to 27*C.

Makes tuning my Air Temp-to-Fuel Inj table so much easier.

[dudemaaan]

Great! Glad more people are getting these hooked up, it really is a must have IMO. Did you mount it in the stock location?

[Signal 2]

I just scanned this thread from the beginning so I might have missed it, but how will the open element style sensors perform long term? Especially with an FD that typically has varying amounts of oil blow-by in the intake tract.
My OEM IAT is already relocated and easy to access, so if it's just a matter of using some contact cleaner on it periodically, then it wouldn't be a big deal. But still curious and maybe something others should consider who still have it in the stock location.

[dudemaaan]

The sensing probe has a protective coating over it so oil residue or methanol etc shoudn't have any effect on it. The only thing that could ever be issue is if something sharp or hard like a rock hit the probe, but in that case you would have much bigger issues then the sensor.

[TitaniumTT]

The only thing that could ever be issue is if something sharp or hard like a rock hit the probe, but in that case you would have much bigger issues then the sensor.

:rofl: Thanks for the quick response. I'm going to call Motec and see if they have a calibration table for it and what they expect the thing to live up to as far as temps. Thanks again.

[Garfinkles Motor Works]

I pulled my sensor out and clocked it so the moving air will be directed through the cage. Every detail helps. Thanks Dude for the research time.

[dudemaaan]

No problem. Did you notice any difference in reaction time after rotating it a bit?

[Garfinkles Motor Works]

I will drive it to the crusein Friday if it does not rain,I will see then .

[dudemaaan]

FearNoPiston posted a video on the other forum of him boosting with the new sensor installed, It's kinda blurry but you can get an idea of how fast the sensor reacts. The last number is IAT's. It starts at 36*c and drops to 30*c in 6 seconds and holds steady.

http://www.youtube.com/watch?v=qaLkVyZlNDw

[Gomez]

Jeezuz Brent, seems the Aussies on FDRX7.com have taken to your sensor!!

Got any left??!!

[dudemaaan]

haha yeah still have a few over here. no one has sent a payment yet, but they do seem to be interested. That's good though, they really make a big difference in keeping an eye on air temps. Everyone should have 1!

[HDP]

haha yeah still have a few over here. no one has sent a payment yet, but they do seem to be interested. That's good though, they really make a big difference in keeping an eye on air temps. Everyone should have 1!

I'm still waiting on the info you were getting on the connectors...

[dudemaaan]

I'm still waiting on the info you were getting on the connectors...

Well I did find something very interesting. The connector from a Greddy Boost control solenoid fit's perfectly in the stock connector. If we can source those connectors then a pigtail could be made that plugs right in. Alternatively It looks like a small terminal blade connector, or computer pin could be pushed into the stock connector. Something like this. (red)

http://i10.photobucket.com/albums/a145/dudemaaan/th_Insulated_Blade_Terminal.jpg (http://s10.photobucket.com/albums/a145/dudemaaan/?action=view&current=Insulated_Blade_Terminal.jpg)

[dudemaaan]

Here's Pics of the greddy solenoid plugged into the stock IAT connector. And also a closeup of the connectors on both. The one we need is on the right.
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01114.jpg
http://i10.photobucket.com/albums/a145/dudemaaan/DSC01116.jpg

[dudemaaan]

I found the correct connector and plan on ordering some to make sure it will work. If so then no wiring or modifications will have to be done to the stock harness. The place that has them requires a purchase of 50+ so I requested a free sample and hopefully will hear back shortly.

[HDP]

Thanks. I will get one as soon as all the info is verified.

[dudemaaan]

Alright i have some comeing, also had to order the pin things that go into the connector, will let you know how it turns out.

[HDP]

Any news?

[dudemaaan]

Yes i have 2 connectors in and they fit perfectly but they didn't come with the pins. Still waiting on the pins to come in, they should have been here last week, but it looks like a direct plug in harness is right around the corner. I'll take some pics of the connector.

[HDP]

Cool!

[RCCAZ 1]

Jumping on! Need 1 set up per HPD's request as well (with stock connector) once they become available ;)

[proz07]

also interested as a plug and play.

z

[dudemaaan]

Alright i'll keep everyone posted. The connector things should have been here, i'm kinda annoyed at how long it's taking them. They said 3-5 days and it's been at least twice that long.

[dudemaaan]

Spoke too soon. The connector pins came in, and the order of connectors also came in, will be fitting it to the Bosch connectors later today, and will have about half a dozen harness' available at this time. This will make adding the sensor super easy.

[dudemaaan]

Here is the harness assembled, and the second pic is it plugged into the stock IAT connector.
Cost will be slightly more for the direct plug in type, but will make installation easier.

http://i10.photobucket.com/albums/a145/dudemaaan/DSC01121.jpg

http://i10.photobucket.com/albums/a145/dudemaaan/DSC01122.jpg

[HDP]

So how much?

[dudemaaan]

The direct plug in harness will be an extra $10

[RCCAZ 1]

Paid for mine late Tuesday evening. Dudemaaan shipped it first thing Wed and had it in my mailbox Saturday. Lightspeed on shipping and customer service. Thanks!!!

[dudemaaan]

No problem man. Let us know how it works for ya.

[dudemaaan]

Now sold here http://www.wannaspeed.com/iat.html With a few other things to come.

[Force13b]

Just ordered 1 :D

[dudemaaan]

Sent it out today

[dudemaaan]

I am moving the site around so the above link won't work. It can be found on www.wannaspeed.com it's under featured products.

[Force13b]

Showed up yesterday looks great. Can't wait to get my car back together and test it out with my meth system

http://i23.photobucket.com/albums/b392/force13b/car/feb910001.jpg

http://i23.photobucket.com/albums/b392/force13b/car/feb910002.jpg

http://i23.photobucket.com/albums/b392/force13b/car/feb910003.jpg

[dudemaaan]

Awesome thanks for the pics, let me know how it works with the meth kit

[Force13b]

Just to clarify I'm running a haltech and would NOT need to recalibrate the IAT since it uses the same values as the stock IAT sensor.

[dudemaaan]

correct. If your haltech was calibrated with the stock sensor then no changes are needed.

[wReX]

Payment sent for sensor/harness. Guess it'll go in the stock location for now, know it's not too bad but any tips on preventing the heatsoak? Thanks. :icon_tup:

-Mike

[Phoenix7]

just ordered!

[dudemaaan]

Cool just shipped!

[infernosg]

So these DO NOT work with the stock FC system, correct? Not that I'd have any use for it with a stock engine, but I am curious for future use.

[dudemaaan]

Yes they work with stock ecu's also. I have a lot of guys running them with the stock ecu and reported a noticed improvement. The sensor still reads the same temperature as the stock sensor it just does it more quickly.

[infernosg]

Yes they work with stock ecu's also. I have a lot of guys running them with the stock ecu and reported a noticed improvement. The sensor still reads the same temperature as the stock sensor it just does it more quickly.
That's good to know. I guess the real question was whether these work on FC's. Earlier in this thread you mentioned something about only FD systems - I really don't know how similar the two are or if they do use the same type of sensor.

[dudemaaan]

I know they will work on fc's when running the power fc. Probably not on the stock second gen ecu though. If anyone can find the test proceedure for the 2nd gen air temp sensor and report the correct resistance values I can confirm whether it will or not.

[1Revvin7]

Finally putting this through.... Thanks for offering this...

[prrex4ever]

Just ordered mine, looking forward to the install. Thanks.

[dudemaaan]

No problem guys, glad I could help

[KaiFD3S]

Please pm me info so I can order this, shipping to AK 99801 should not be much more if using Postal Service...Thanks...

[dudemaaan]

If you go to wannaspeed.com you can order it with whatever wiring type you want. Shipping is free worldwide.

[speedjunkie]

Placed my order! I won't be able to install or report back for a few months but it sounds like others have that covered already haha. I can't wait to install it.

FYI, I couldn't connect to your website by using any of your links, but I did get there going through a search engine though. Just in case anyone else has issues.

[dudemaaan]

Thanks for the info. The banners seem to work fine right now, but lately the servers have had some busy spikes which can cause loading issues with the site. Been trying to get that worked out.

[prrex4ever]

Thanks for the great service, got mine in a couple of days. Hopefully I can find some time to install mine this weekend.

[KaiFD3S]

Installed mine over the weekend and all I can say is what a great sensor, thank you for discovering this, I had my car parked after a hard drive, when I got back in the car before starting air temp was at 50, as soon as I start the car just with the little air it goes down to 49, and when I start driving it quickly starts dropping temp, my old stock sensor would normally take a while before going down...love this this......

Thanks

[dudemaaan]

Awesome, glad everyone likes it as much as me. Definitely a must have mod

[93vrfd_houston]

hey dudemaaan, i just sent in payment through wannaspeed. i just realized you are from brenham tx, i grew up in bellville my whole life. you been out there for a long time or did you recently move out there? i'm wondering if you have a shop out there or just the on line store?

later, mark

[RICE RACING]

I got one of these units of the dude along with adapter for wiring and it works a treat, reads 2+ deg C higher than actual temperature but that is no real problem given the excellent response of the sensor which is far far more important.

If I remember I will take a snap shot of my ECU logging from a (2nd to 4th gear run) 125mph run, its 25hz data capture and it shows the super responsiveness this items gives between gears.

[dudemaaan]

hey dudemaaan, i just sent in payment through wannaspeed. i just realized you are from brenham tx, i grew up in bellville my whole life. you been out there for a long time or did you recently move out there? i'm wondering if you have a shop out there or just the on line store?

later, mark

Yeah been here for 20 years. I have a couple shops out here but mostly just use them for myself. I'm between Brenham and Somerville off of 36N. I've been thinking about building another shop to do installs and maybe have a dyno installed, but I fear the performance industry isn't what it used to be. Gas prices drove most everyone to smaller cars.

Rice would be nice to see the data you've logged with the sensor.

[AzEKnightz]

Dudemannn, I actually would like to order 2 of these sensors. I didnt have time or patience to read through the 12 pages. Can you please pm me the details and pricing for complete kit (sensor + wirings if necessary). or email me @ x_aze04@yahoo.com

Thanks in advance!

-AzEKnightz

[dudemaaan]

The sensors can be ordered from my site. Wannaspeed.com.

You will need to add either pigtail wiring, or the plug n play harness for the FD. I currently only have 1 pnp harness in stock, but I have ordered more and will be here in a week or so. The pigtail version requires splicing into the factory harness.

[Force13b]

Here's a data log of this thing in action when 100% methanol comes on
http://i23.photobucket.com/albums/b392/force13b/car/AIT.png

[POPCORN]

wow tyler that 500~640 transaction is huge !

[cewrx7r1]

I got one of these units of the dude along with adapter for wiring and it works a treat, reads 2+ deg C higher than actual temperature but that is no real problem given the excellent response of the sensor which is far far more important.

When I got mine, it was tested against my modified stock sensor. As RR said, at a certain temperture area, it was 2 degress high due to lower resistance.

I added an inline resistor to compensate for this at the air temperature range which my engine sees the most in Texas. Thus for summer it is dead on and only off a little for winter.

[neofreak]

Any chance I can get added to the waiting list? Out of stock on the website!

[RICE RACING]

word of warning on these sensors for you people who actually drive your cars!

These sensors WILL fail after around 10,000km of use. Because of the exposed element and the pulsing nature of the rotary engine (and maybe the effect of over 30psi intake manifold pressure!) the sensor wires DO fatigue and break resulting in the AIT sensor going open circuit (showing -40 deg C lol) .....

I have seen this happen over 2 of these sensors now, but unlike most I do actually drive my rotary daily! and do allot of testing kilometers !!!

I have another supplier in the U.K. who sells a slightly different version of this open AIT sensor and I am doing durability trials on these across a various range of customer cars and mine as well.

Will update when we accumulate some more real world testing :)

[dudemaaan]

word of warning on these sensors for you people who actually drive your cars!

These sensors WILL fail after around 10,000km of use. Because of the exposed element and the pulsing nature of the rotary engine (and maybe the effect of over 30psi intake manifold pressure!) the sensor wires DO fatigue and break resulting in the AIT sensor going open circuit (showing -40 deg C lol) .....

I have seen this happen over 2 of these sensors now, but unlike most I do actually drive my rotary daily! and do allot of testing kilometers !!!

I have another supplier in the U.K. who sells a slightly different version of this open AIT sensor and I am doing durability trials on these across a various range of customer cars and mine as well.

Will update when we accumulate some more real world testing :)

I call bullshit on this one. I've sold over 400 of these sensors over the last 3 or so years and had only 1 sensor reported failed due to being exposed to extreme heat from a heatgun. I run 26 psi daily in my rx7 and have put steady miles on the car in the last several years. Not to mention the thousands of people that run open element gm style sensors in a wide range of high boost vehicles. I respect your knowledge pete, but knocking products to push your own is low.

[RICE RACING]

I call bullshit on this one. I've sold over 400 of these sensors over the last 3 or so years and had only 1 sensor reported failed due to being exposed to extreme heat from a heatgun. I run 26 psi daily in my rx7 and have put steady miles on the car in the last several years. Not to mention the thousands of people that run open element gm style sensors in a wide range of high boost vehicles. I respect your knowledge pete, but knocking products to push your own is low.

wtf?

The sensors failed exactly as I described! hence I posted about it!

If you don't cover as many km's like most rotary owners then I agree you wont fatigue the wires.

It's pretty easy to see it happen, and no heat gun is needed! I can show you a computer data log showing exactly how many hours the sensor was used and the highest temperature recorded off it if you are still indoubT !

NO NEED TO BE A **** A SLUR MY FACTUAL TEST AND WARNING TO OTHERS AS BULLSHIT THANKS!!!

[RICE RACING]

P.S. I don't sell the other sensors either BTW!

They will most likely fail as well in time due to being weak open element types too! There is a reason Mazda did not use these in the rotary engine and I can see why now after accumulating allot of testing hours and time and kilometers on them.

The same fatigue happens to open element EGT wires as well for your information, and no I dont sell others ether of those. Just passing on real knowledge and testing which fuck all other people do or have the ability or running cars to do so.

[RICE RACING]

In the rotary engine especially the 13B-REW with its dynamic chamber intake manifold and where the AIT sensor is placed it sees large "pulses" and these over time flex the sensor wire back and forth, you need to do many km's like I stated in my first post, and I guarantee you this will fatigue the wire or wires and it will go open circuit.

I have see this happen in egt sensors and also in these AIT sensors (if you sell them or not is not my issue nor my aim to warn people@) its just that this type of sensor WILL fail in a rotary engine over time.

Typically its happened on 2 different cars at around 10,000km covered range. both 13B-REW's with stock intake manifolds and positioned sensors. Take that for what you will. The sensor tips did not fall off into the motors but one wire on each sensor was broken due to the constant flexing the exposed sensor tip is subjected to. And as I stated its a well known fact that open element EGT sensor tips suffer the same failures due to pulsations breaking wires as well.

When the sensor goes south least the motor will run rich if you have the ECU set up correctly for it.

[Trout2]

Were the failed sensors placed in the UIM or relocated? I think most using them here have relocated it to the post-intercooler piping.

Jack

[RICE RACING]

Were the failed sensors placed in the UIM or relocated? I think most using them here have relocated it to the post-intercooler piping.

Jack

Mentioned, all in standard location.

All of these types are very flimsy compared to the stock reliable piece, you can simply touch the junction and they flex with the slightest pressure applied. Based off that the UK sourced ones will fail @ the same rate if I were to guess but you don't know until you do the testing hours. I'll report back when I do.

[dudemaaan]

Saying they WILL fail at a certain mileage with your limited experience with the sensors seems presumptuous to me. You only ordered the sensor from me about a year ago, and given that I've moved over 400 of these in the last few years and have been in contact with the customers and rotary shops all around the world that have installed the sensor and have had nothing but good things to say is evidence of the quality of the sensors. See when something is deemed doomed to fail as you put it in your post then you hear bad things not good things. More people are anxious to post their negative results in using a product rather then their good results. So I'm very shocked for you to claim seeing 2 of these fail when I'm fairly certain I've had much more experience with them.

Saying something WILL fail at xx miles is a bold claim and I'm sure many members on this board can also attest to a fully functional sensors beyond those miles. Personally I put about 8k miles on my car every year so I'm beyond the point at which my sensor was supposed to fail according to you. (stock location) Must be lucky I guess. Also, it seemed to me you were in the beginning stage of selling the sensors yourself or recommending a particular source that is affiliated with you, so I thought maybe your intentions were motivated by $ signs. Anyways that's unfortunate you had such bad luck with the sensors I've never seen that before. Strange

[RICE RACING]

Yes I see your points.

For me remember I have covered ~10,000km in less than a year :auto: remember daily driver. This is why I don't quote "time" it's rather what you do in that time that is much more important. Also the cycles from cold to hot, true street use all has an effect, rather than just getting in and covering 10,000km straight........... bit like rotaries passing bench tests NSU/Mazda style then failing at 1/3rd the distance when use in the real world by owners and not in a laboratory :)

Regardless, if you send me an E-Mail I will send back the failed sensor for you to see yourself on my own car, cause that is the one I can vouch for 100% myself in the time I used it and km's covered, happy to send you other matching information logging its use off the ECU as well.

The sensors them selves look o.k. (build finish etc) but the bit I don't like on any of them is how weak and flexible the "element" is, it is easy to see how it could fail in "time".

Like I said its not an attack on you or for me to sell others etc, I have no interest in that at all, just so when they do break (some rotary owners will never ever reach 10,000km or more of true daily use) then you know that at least someone else has told you what the problem is.

I do come across all kinds of similar things "that no one else has ever discovered"....... this is not the first time and def will not be the last I'd say based off experience.

[My5ABaby]

(My5ABaby mentions something about not agreeing with RICE RACING conclusions here due to inadequate statistical proof. I've deleted all the discussion that does not have any direct discussion of the topic itself. Please keep replies on-topic. Thank you. -RETed )

[cewrx7r1]

My Triumph Daytona fast sensor is made a little different. The sensor is surrounded by a brass tube which is an extension of the brass base.
The brass tube has a few holes in it to allow a little flow of air through it.
This way the little expose sensor does not get the direct blast of air on it.
Unfortunately the place I got mine, no longer carries it. And when I search for it, I can not find it. Part # is T1900510 while dudemaaan's is # T1290510.


Got it from:

http://speedsupplies.com/partslisting.asp?position=23&increment=500&category=TM

[RICE RACING]

My Triumph Daytona fast sensor is made a little different. The sensor is surrounded by a brass tube which is an extension of the brass base.
The brass tube has a few holes in it to allow a little flow of air through it.
This way the little expose sensor does not get the direct blast of air on it.
Unfortunately the place I got mine, no longer carries it. And when I search for it, I can not find it. Part # is T1900510 while dudemaaan's is # T1290510.


Got it from:

http://speedsupplies.com/partslisting.asp?position=23&increment=500&category=TM

Sounds like it would be much more durable :001_302:

[dudemaaan]

wannaspeed.com has a few more of the sensors in

[yzf-r1]

I've had no issues with quality or durability of the wannaspeed sensor in my car, but it doesn't respond as fast as I thought it would - still better than stock, so I guess that's what matters

[dudemaaan]

I've had no issues with quality or durability of the wannaspeed sensor in my car, but it doesn't respond as fast as I thought it would - still better than stock, so I guess that's what matters

The sensor responds pretty much immediately. If you aren't seeing quick changes in air temperature readings it's probably because the air temperature isn't changing rapidly, at least from where the sensor is reading it. In my bench testing just breathing hot air on it caused rapid changes in resistance. You might also make sure the sensor is clocked properly so the air flows through the plastic square area rather then into it. Not sure if it makes a huge difference or not but maybe.

[FC3SDrift]

mazda used an open element iat's on the second gen rx7's

[cewrx7r1]

mazda used an open element iat's on the second gen rx7's

On some other 13Bs powered cars, Mazda placed the AIT sensor in the throttle body elbow where it would not heat soak.

:dunno: Mazda is inconsistant! :confused:

[Signal 2]

As to durability, I've had my wannaspeed sensor now for about 30,000 miles. Relocated pre-throttle-body. That's close to 50,000 kilometers. Still functions as new.
I know two others who've had the sensor for a few years. No reported issues.

[RX SE7EN]

What size are the threads on this? 1/8 npt?

[Prodigy]

I know this might not answer your question, but they are exactly, the same size, and thread as the OEM sensors... Making them a drop in fit...


J.

[RX SE7EN]

I have a custom manifold that doesn't have a port yet, so I'm trying to figure out which bung to weld on.

[Signal 2]

I have a custom manifold that doesn't have a port yet, so I'm trying to figure out which bung to weld on.
Not sure what your set-up is, but some of us re-located it from the stock manifold to post IC/pre-throttle-body. Less heatsoak.
As for what thread size, just take it to a hardware store that carries metric and find a nut that will work. It's metric, but not pipe thread.
If I get a chance to get down to my shop I'll try to find my old OEM IAT and see what size it is...

[general7]

Thread size is M10 x1,25 if my mind serves right :)

[RobbieRX-7]

The sensors can be ordered from my site. Wannaspeed.com.


Can you link me up please? I've had a quick look but couldn't find it under sensors/switches.

Thanks

[RIZZXX7]

I just tried to order this and they're currently out of stock since the supplier stopped supplying the sensor

[Red Baron]

Been using one in my car, no issues.

[dudemaaan]

yeah no issues for me and haven't heard of any failures from the 300+ people that have purchased them from me. I do have a new version of the sensor I've been getting. The cage as I call it at the end of the sensor is brass instead of plastic with air flow holes around it. I couldn't say if its an improvement in the design as I didn't see anything wrong with the old sensors, but in any case there has been a design change, and I am now selling the new ones.http://rotarycarclub.com/rotary_forum/attachment.php?attachmentid=12586&stc=1&d=1353508094

[eplusz]

are these still being sold? and can it be shipped to the netherlands :) ??

[dudemaaan]

are these still being sold? and can it be shipped to the netherlands :) ??

yes the sensors are still being sold. Its now the updated part. you can order from wannaspeed.com free worldwide shipping

[eplusz]

do you stilll have one of those "older" sensor + connector for $42? just looked at the website and sells almost the same for a cazy $120 :(

[dudemaaan]

do you stilll have one of those "older" sensor + connector for $42? just looked at the website and sells almost the same for a cazy $120 :(

I haven't had the discontinued design for $43 for quite some time. That price never included the plug n play harness and even the old design with pigtail went to $64 about 2 years ago. The new design is not $120, it's $90 shipped with pigtail or $98 shipped with plug n play harness. You probably added the pnp harness separately, there's a discount on the harness if you purchase it with the sensor as an add on. If I was selling the new sensor for $43 I would be paying people to buy the product, not really a smart thing to do in business.