GM1697

iTrader: (1)

Alright so I'm sitting at work here and a thought crossed my mind.

We all have the ambient temp sensors infront of our radiators. I am assuming these operate on a 0-5v range.

Would it not be possible to swap out that sensor with a water proof one that could be installed into your HEX and thus display HEX coolant temp on your rear view mirror?

You could possibly also use this for trans or other temps too?? I know the screen can display up to 199.

Just thinking out loud here...

Atomic

iTrader: (42)

Sure, why not!

01WS6/tamu

iTrader: (36)

Whats a HEX?. You could either drop the same sensor directly into coolant depending on how hot it runs or you could butcher a trans oil temp sensor and it would read correctly also.

Atomic

iTrader: (42)

HEX = heat exchanger

FFDP

iTrader: (2)

Would be neat.

GM did something similar "kinda" when they built the W-Body Grand Prix's. If you had the dual climate control with LCD screen you could enter the "diag" mode or whatever it was called and it would show different engine related parameters in the HVAC display. Anything from coolant temp to transmission temp I think and even the vehicle speed too, I know it did others but I forget and would have to find the list again. Ramble ramble...lol

madmann26

iTrader: (7)

I think you would want the IAT value, post rotors. That's where the air is the hottest and what you need/want to know for tuning.

The water temp in the HEX path is nice and it would kinda give you an idea of want the cooling system is doing/not doing.

If you haven't already, do the rear crossover tube on the heads.

GM1697

iTrader: (1)

I may give this a whirl, seems like a fun experiment. Might go for trans temp..

madmann26

iTrader: (7)

I looked at my trans temp 1 time and never gave it a 2nd thought. It never got above 160. I do log it but it's not something I'm overly concerned about.

AkSSS

Just to add to this. It wont go any lower than -40 on the display.

arthursc2

iTrader: (5)

The dwell time is slow, so I think HEX, trans or even diffs would be a good bet. IAT changes too fast and the dwell time in the mirror cant be changed.