Testing your Auxiliary Injection system

speedjunkie · 09-08-2009, 03:51 PM

I wasn't sure where to put this (that's what she said) because we don't have an AI section and I'm sure others use AI, but it seems like mostly FD folks do, so anyway, mods if you know of a better place for this thread, feel free to move it.

Those of you that have AI, did you test it before you tuned the car?

I put my kit in a couple weeks ago and I'm going to take the car to Ari Yallon to get it tuned, but I don't want to drive/take the car all the way down there and find out I don't have my system set up right or something. Would it be safe to run just water right now, just to see if it works, and then maybe drain the tank after that until I go? Or do I need to just chance it and take the car down there and find out on the dyno? I could hook a laptop up to it and see if I can adjust it, but I'm not savvy on tuning ANYTHING just yet and my laptop took a shit in the desert again this year so no love there.

A friend mentioned running just water to test it shouldn't hurt anything, and I agree, it probably wouldn't, but I don't want to take any unnecessary chances. What do you guys think?

SPICcnmFD · 09-09-2009, 08:46 AM

Actually you'll be safer running meth/water because it will richen up the mixture, but just water is fine because it suppresses knock more.

You can test and see if it works by jumping the pump and taking the nozzle out and spray in a bucket or something. Or if it's set to come out at a certain psi hook and an air compressor up on low psi and see if it cuts on. You can also measure how long it takes to completely empty the tank and see if the nozzle size is what you expected. Or if you want to drive it you can look at your IATs and they should drop fairly quickly if it comes on and then you let off the gas and coast or cruise for 5-10sec. There are multiple ways to test if it works you just have to get a little creative.

The AI section on the other forum is really pretty good if you want/can get on there and read about it.

speedjunkie · 09-09-2009, 03:42 PM

Yeah I posted this on the other forum too, but I can't get on their site to reply while I'm at work. I didn't even think about taking the nozzle out and jumping the pump, DUH!! Actually I'd rather run it on the car with everything hooked up and so I can make sure I wired everything up correctly. So I'll probably just lean the nozzle on the windshield and close off the hole for now, and take it for a drive and make sure it kicks on. Although before I do that I'll need to set it up in the computer for what to read off of. Dammit haha.

I'm actually still undecided on what liquid/mix to run. I was thinking about running just distilled water for safety, that way if the system fails for whatever reason it won't damage the engine. But I'd kinda like to run a little meth in there too since I'm up in the mountains and it'll most likely freeze during the winter and I don't want it freezing in the pump and in the lines. Although I won't be driving the car in the winter so I don't know. Decisions, decisions. In any case, I don't really wanna tune up on it because of the failure factor.

Oh and it's an FJO system, just FYI.

Thanks!

dudemaaan · 09-09-2009, 03:47 PM

I'm running straight water and tested my mechanical setup with an air compressor and a measuring container for 60 secs. This verified my flow and let me know exactly how much it was. If you just want to make sure the car is using fluid then yeah water will be just fine. No tune needed with water, but if your ignition is weak and you have a large nozzle it will run like crap.

SPICcnmFD · 09-09-2009, 04:30 PM

You could tune it with just water and in the winter if you do drive it put a mix in. It won't hurt anything, just richen it up, how much will depend on how much meth you run. There are some guys making 500+ with just water.

I had actually planned on running a mix, then decided I didn't want to tune up for it because if it doesn't work or runs out it will probably lean it out so much it will blow the motor so as of now I'm tuned on just water. For example I was running 35meth/65h2o(blue washer fluid) and it was around 0.5-0.7 richer than just H2O, but it will all depend on how much you are injecting.

speedjunkie · 09-10-2009, 12:24 AM

Quote:

Originally Posted by dudemaaan

I'm running straight water and tested my mechanical setup with an air compressor and a measuring container for 60 secs. This verified my flow and let me know exactly how much it was. If you just want to make sure the car is using fluid then yeah water will be just fine. No tune needed with water, but if your ignition is weak and you have a large nozzle it will run like crap.

Well I don't remember which injector I got, haha. I think it was the 700cc one, to support 500hp, but I don't remember for sure. Either way, I got my girl's sister's laptop, so I'm gonna install the program on there and follow the instructions to tell it what to read from. I'll test it after that.

Quote:

Originally Posted by SPICcnmFD

You could tune it with just water and in the winter if you do drive it put a mix in. It won't hurt anything, just richen it up, how much will depend on how much meth you run. There are some guys making 500+ with just water.

I had actually planned on running a mix, then decided I didn't want to tune up for it because if it doesn't work or runs out it will probably lean it out so much it will blow the motor so as of now I'm tuned on just water. For example I was running 35meth/65h2o(blue washer fluid) and it was around 0.5-0.7 richer than just H2O, but it will all depend on how much you are injecting.

Yeah that's exactly why I wanna run water. But that sounds good though, maybe I'll just run a LITTLE bit of meth in there for the winter.

Thanks guys!

jkstill · 09-11-2009, 11:47 AM

My kit is the Coolingmist setup with trunk mount tank and Varicool controller.

The Varicool allows you to inject based on voltage or boost.

I took the simple route and am injecting based on boost pressure.

Calibration was done by using a MightyVac pump (also does pressure) and an external pressure gauge plumbed in, all connected to the varicool in place of the boost line.

I then set it to come on at low boost (6 lbs I think) and progress to 100% injection at 13lbs.

Then I pulled the output line off the pump, and connected up a line with another quick connect and a nozzle, turned it on, and used the MightyVac pump to run the boost up to 13 lbs. All worked great.

speedjunkie · 09-11-2009, 11:51 AM

Yeah I think I'll try that.

However, I hit a snag the other night. I installed the program on the laptop and I can't open the program. I installed it on my PC last night to see if it's the program or the laptop that's causing the problem, and it must be the program because it did the same thing on my PC. So I guess I'll be calling FJO to get the program.

speedjunkie · 09-15-2009, 12:37 AM

Turns out it was missing some files, so I called them today and they sent me a new file.

After installing it and opening the program, I'm a bit confused haha. I've been doing the setup steps, and there are a couple I don't understand. Keep in mind, I'm still doing this just to test the system. Right now, it has zeros across the board, so I'm pretty sure even if I pump some air into the vacuum line it won't spray anything.

For one, I'm not sure what to put for the RPM multiplier. Also, I'm not sure what values to put just to test out the water, or where to put these values (since it's laid out like the PFC fuel map).

Anyone with the FJO kit have any pointers for me?

09-08-2009, 03:51 PM	#1
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	Testing your Auxiliary Injection system I wasn't sure where to put this (that's what she said) because we don't have an AI section and I'm sure others use AI, but it seems like mostly FD folks do, so anyway, mods if you know of a better place for this thread, feel free to move it. Those of you that have AI, did you test it before you tuned the car? I put my kit in a couple weeks ago and I'm going to take the car to Ari Yallon to get it tuned, but I don't want to drive/take the car all the way down there and find out I don't have my system set up right or something. Would it be safe to run just water right now, just to see if it works, and then maybe drain the tank after that until I go? Or do I need to just chance it and take the car down there and find out on the dyno? I could hook a laptop up to it and see if I can adjust it, but I'm not savvy on tuning ANYTHING just yet and my laptop took a shit in the desert again this year so no love there. A friend mentioned running just water to test it shouldn't hurt anything, and I agree, it probably wouldn't, but I don't want to take any unnecessary chances. What do you guys think?

09-09-2009, 08:46 AM	#2
SPICcnmFD Rotary Fanatic Join Date: Feb 2008 Location: B'ham, AL Posts: 329 Rep Power: 18	Actually you'll be safer running meth/water because it will richen up the mixture, but just water is fine because it suppresses knock more. You can test and see if it works by jumping the pump and taking the nozzle out and spray in a bucket or something. Or if it's set to come out at a certain psi hook and an air compressor up on low psi and see if it cuts on. You can also measure how long it takes to completely empty the tank and see if the nozzle size is what you expected. Or if you want to drive it you can look at your IATs and they should drop fairly quickly if it comes on and then you let off the gas and coast or cruise for 5-10sec. There are multiple ways to test if it works you just have to get a little creative. The AI section on the other forum is really pretty good if you want/can get on there and read about it. __________________ 1993 Rx-7 SM2 #11 At the local AutoX: http://www.youtube.com/watch?v=9VOSQkkSLQs Speed for Sale shootout 2007: http://www.youtube.com/watch?v=JiqlyAkGmpg A few laps at Barbers: http://www.youtube.com/watch?v=6_h5q...x=0&playnext=1

09-09-2009, 03:47 PM	#4
dudemaaan Rotary Fanatic Join Date: Mar 2008 Location: Brenham, TX Posts: 335 Rep Power: 18	I'm running straight water and tested my mechanical setup with an air compressor and a measuring container for 60 secs. This verified my flow and let me know exactly how much it was. If you just want to make sure the car is using fluid then yeah water will be just fine. No tune needed with water, but if your ignition is weak and you have a large nozzle it will run like crap. __________________ 500+ HP thanks to: Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap!

09-09-2009, 04:30 PM	#5
SPICcnmFD Rotary Fanatic Join Date: Feb 2008 Location: B'ham, AL Posts: 329 Rep Power: 18	You could tune it with just water and in the winter if you do drive it put a mix in. It won't hurt anything, just richen it up, how much will depend on how much meth you run. There are some guys making 500+ with just water. I had actually planned on running a mix, then decided I didn't want to tune up for it because if it doesn't work or runs out it will probably lean it out so much it will blow the motor so as of now I'm tuned on just water. For example I was running 35meth/65h2o(blue washer fluid) and it was around 0.5-0.7 richer than just H2O, but it will all depend on how much you are injecting. __________________ 1993 Rx-7 SM2 #11 At the local AutoX: http://www.youtube.com/watch?v=9VOSQkkSLQs Speed for Sale shootout 2007: http://www.youtube.com/watch?v=JiqlyAkGmpg A few laps at Barbers: http://www.youtube.com/watch?v=6_h5q...x=0&playnext=1

09-09-2009, 03:42 PM	#3
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	Yeah I posted this on the other forum too, but I can't get on their site to reply while I'm at work. I didn't even think about taking the nozzle out and jumping the pump, DUH!! Actually I'd rather run it on the car with everything hooked up and so I can make sure I wired everything up correctly. So I'll probably just lean the nozzle on the windshield and close off the hole for now, and take it for a drive and make sure it kicks on. Although before I do that I'll need to set it up in the computer for what to read off of. Dammit haha. I'm actually still undecided on what liquid/mix to run. I was thinking about running just distilled water for safety, that way if the system fails for whatever reason it won't damage the engine. But I'd kinda like to run a little meth in there too since I'm up in the mountains and it'll most likely freeze during the winter and I don't want it freezing in the pump and in the lines. Although I won't be driving the car in the winter so I don't know. Decisions, decisions. In any case, I don't really wanna tune up on it because of the failure factor. Oh and it's an FJO system, just FYI. Thanks!

09-11-2009, 11:47 AM	#7
jkstill Rotary Fan in Training Join Date: Mar 2008 Posts: 93 Rep Power: 18	My kit is the Coolingmist setup with trunk mount tank and Varicool controller. The Varicool allows you to inject based on voltage or boost. I took the simple route and am injecting based on boost pressure. Calibration was done by using a MightyVac pump (also does pressure) and an external pressure gauge plumbed in, all connected to the varicool in place of the boost line. I then set it to come on at low boost (6 lbs I think) and progress to 100% injection at 13lbs. Then I pulled the output line off the pump, and connected up a line with another quick connect and a nozzle, turned it on, and used the MightyVac pump to run the boost up to 13 lbs. All worked great.

09-11-2009, 11:51 AM	#8
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	Yeah I think I'll try that. However, I hit a snag the other night. I installed the program on the laptop and I can't open the program. I installed it on my PC last night to see if it's the program or the laptop that's causing the problem, and it must be the program because it did the same thing on my PC. So I guess I'll be calling FJO to get the program.

09-15-2009, 12:37 AM	#9
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	Turns out it was missing some files, so I called them today and they sent me a new file. After installing it and opening the program, I'm a bit confused haha. I've been doing the setup steps, and there are a couple I don't understand. Keep in mind, I'm still doing this just to test the system. Right now, it has zeros across the board, so I'm pretty sure even if I pump some air into the vacuum line it won't spray anything. For one, I'm not sure what to put for the RPM multiplier. Also, I'm not sure what values to put just to test out the water, or where to put these values (since it's laid out like the PFC fuel map). Anyone with the FJO kit have any pointers for me?