Best place to fit oil/water senders? impressions pros/cons

[Jonathan3009]

Hi all

i recently bought a jdm rx7 (stock RHD ) and im gonna start with the reiability mods first of all im gonna replace the AST and want to install gauges...

My problem is... I don't know where to fit the senders... i was planing on get a sandwich and fit oil senders there... but I've read somewhere that with time that location tends to leak...

Im want to install (boost, oil press/temp, water temp)

can you help me?

thx!

[Force13b]

I used a sandwich plate for the oil it's been there for 2 yrs now and i don't have any leaking. For water temp i used hose adaptor and i'm not real happy with it. It reads about -10°F from the stock sensor and it doesn't react until the t-stat opens. If your car is stock T into the throttle body hose, you can get all the parts you need from the hardware store for about 10$. If you want to go big you can drill and tap your water pump housing. Boost is easy there are 2 nipples on the UIM you can tap into.

[Supernaut]

I've done something similar for the water temp sender. I used glowshiftgauges hose adapter though, same with the oil filter sandwich. None of which have been giving me problems.

[Signal 2]

Another vote for using the throttle-body coolant line for the temp sender. Easy, inexpensive, accurate and you get readings as soon as you start the car, not just after the t-stat opens.
It's also easily reversible if you ever decide you don't need it anymore.

Picture of mine from some years ago if it helps....

[Jonathan3009]

Originally Posted by Signal 2

Another vote for using the throttle-body coolant line for the temp sender. Easy, inexpensive, accurate and you get readings as soon as you start the car, not just after the t-stat opens.
It's also easily reversible if you ever decide you don't need it anymore.

Picture of mine from some years ago if it helps....

Thank you so much!!!! it helps a lot!! because really im very lost on rotaries...

so if i use the sandwich from prosport gauges for example... will be fine? due to im very worried about leaks or something...

[FC Zach]

I've heard of people drilling and tapping the oil cooler line banjo bolt to accept a sender. Cheap alternative, that's unless your running AN style fittings and if so then nevermind.

[Trout2]

Sandwich plate works fine with proper o-rings. I used the Racing Beat one on a first gen for 7 years then a Pineapple one for 5 years and now the REspeed one for 1-1/2 years. No leaks.

For water, the sender with my SPA gauge works in the factory sender location on the rear iron.

Jack

[Signal 2]

Originally Posted by Jonathan3009

Thank you so much!!!! it helps a lot!! because really im very lost on rotaries...

so if i use the sandwich from prosport gauges for example... will be fine? due to im very worried about leaks or something...

I've never monitored oil temps. Personally I don't see the need to monitor coolant temp AND oil temp. All those gauges in the car start to look silly IMO. For oil pressure I use the stock gauge. OEM senders are a little notorious, but keeping the connection clean has worked well enough for me. I don't think these cars have many oil related failures...unless something aftermarket fails and leaks.

[Force13b]

Originally Posted by Signal 2

I've never monitored oil temps. Personally I don't see the need to monitor coolant temp AND oil temp. All those gauges in the car start to look silly IMO. For oil pressure I use the stock gauge. OEM senders are a little notorious, but keeping the connection clean has worked well enough for me. I don't think these cars have many oil related failures...unless something aftermarket fails and leaks.

All 3 in 1 gauge, water temp, oil temp, oil pressure


http://rotarycarclub.com/rotary_foru...ad.php?t=14212

[Jonathan3009]

That gauge looks really good.... I found something similar in Depo racing gauges... 4 in 1 if i remember correctly... My only problem is that I live on spain... so we're a bit far to make a GB...

well, im gonna get some gauges... with warn, I'm decided to use the prosport filter adapter for oil press/temp senders and for water temp I'm gonna use the TB coolant hose...

Just I've pending where to attach the boost pressure gauge....

btw... can you recommend any good price/quality gauge brand? I'm looking for some temporal solution... not looking directlly for defi or greddy gauges =D

but if you have them used or something we can talk

thx to all!

[Force13b]

Originally Posted by Jonathan3009

That gauge looks really good.... I found something similar in Depo racing gauges... 4 in 1 if i remember correctly... My only problem is that I live on spain... so we're a bit far to make a GB...

well, im gonna get some gauges... with warn, I'm decided to use the prosport filter adapter for oil press/temp senders and for water temp I'm gonna use the TB coolant hose...

Just I've pending where to attach the boost pressure gauge....

btw... can you recommend any good price/quality gauge brand? I'm looking for some temporal solution... not looking directlly for defi or greddy gauges =D

but if you have them used or something we can talk

thx to all!

I ordered that gauge from Hong Kong so that gauge is a lot closer to you then me in the states. My first water temp gauge was a glowshift it was cheap and it did the job. They are very similar to Prosport gauges.

For boost there should be 2 nipples off the passenger side (LHD car) of the Upper intake manifold. 1 will go to your BOV the other you'll use for a boost gauge. (see image where it says boost gauge)



I went with RE Amemiya center column gauge. I'm sure i spent a lot more just because of the name on it.

[Supernaut]

I recommend PLX gauges. They have many different types of displays including a 4 in 1. You can also customize the background.

[Signal 2]

Good to know I'm not the only one wanting to minimize the number of gauges. Having one with multiple displays is kind of cool, as long as it's simple to go from one to another on the fly.
But monitoring both oil and coolant temps still seems redundant. What will oil temps tell you that coolant temps won't...or vice-versa?

[Jonathan3009]

Originally Posted by Signal 2

Good to know I'm not the only one wanting to minimize the number of gauges. Having one with multiple displays is kind of cool, as long as it's simple to go from one to another on the fly.
But monitoring both oil and coolant temps still seems redundant. What will oil temps tell you that coolant temps won't...or vice-versa?

I've found something similar... and some time ago... there was a gb to spain for those gauges...

http://www.youtube.com/watch?v=IqouOlz74KY

i think for many rx7 users that gauge can be a good option... the only bad thing I've found is they don't have warn/peak alert...

they're cheap and seems like they're good quality

but im still opened to your advise and feedbacks about brands

[Force13b]

Originally Posted by Signal 2

Good to know I'm not the only one wanting to minimize the number of gauges. Having one with multiple displays is kind of cool, as long as it's simple to go from one to another on the fly.
But monitoring both oil and coolant temps still seems redundant. What will oil temps tell you that coolant temps won't...or vice-versa?

With 1 oil cooler and a new rad you water temps could be manageable but your oil temps could be super hot when on a track. With hot oil you get low oil pressure which could cause a rebuild just like running hot water. Water and Oil temps are not necessarily related.