IAT sensor location

G

ggt4

Member
Where should the IAT sensor be mounted? I am finishing up but i cant figure out where and how to mount it.
 
I put mine in the rubber connector beside the dipstick!! Not where most put them (vertical tube in front of the head) but I figured the closer to the intake the better??:confused:

Mine works fine as far as I can tell!!:D

Marauderjack:burnout:
 
This is where one member put his;

"I actually blew up 2 engines. My IAT was strapped to my A$$ and I used a 200 shot of nitrous."

:lol:
 
I drilled and tapped the aluminum throttle body adapter, then installed a Lightning-style threaded one just before the throttle body.
 
FordNut said:
I drilled and tapped the aluminum throttle body adapter, then installed a Lightning-style threaded one just before the throttle body.
Click to expand...

This is where mine is too. I think the first batch of ProCharger kits were the same way. It was moved from being on top of the driver's side head to the front of the engine so it wouldn't be effected by the radiant heat retained by the hefty aluminum throttle body adapter.
 
JD,

Wouldn't you want it to see "All" of the heat the engine sees....radiant or not??:confused:

The EEC pulls timing as heat rises and if IAT air in front of the engine is 130* and at the TB is 140* wouldn't you want the EEC to respond to the "Pre-TB" reading??:cool:

Dave Lamberson may have a good answer for us on this one......

Happy New Year!!:beer:

Marauderjack:bandit:
 
I'm not sure the location is that critical, as long as it's after the intercooler. The sensor element is pretty well isolated from the body of the sensor. The threaded and the o-ring mounted type sensors are pretty much the same in this regard.
 
We did have the IAT sensor tapped in the Procharger cast Intake but it was reading 10 degrees higher than the actual Intake temp so we moved it in between the Intake and the Intercooler.

FordNut said:
I'm not sure the location is that critical, as long as it's after the intercooler. The sensor element is pretty well isolated from the body of the sensor. The threaded and the o-ring mounted type sensors are pretty much the same in this regard.
Click to expand...
 
Marauderjack said:
JD,

Wouldn't you want it to see "All" of the heat the engine sees....radiant or not??:confused:

The EEC pulls timing as heat rises and if IAT air in front of the engine is 130* and at the TB is 140* wouldn't you want the EEC to respond to the "Pre-TB" reading??:cool:

Dave Lamberson may have a good answer for us on this one......

Happy New Year!!:beer:

Marauderjack:bandit:
Click to expand...

Happy New Year back at ya buddy!

As far as the location of the IAT sensor in the cast intake, I do believe the radiant heat (or heat soak) of the hefty cast intake contributes a false rise in temperature reading to the incoming air, especially at low loads. But it's probably not significant as long as you aren't running an aggressive tune. What's a 1/2 degree timing among friends?

Rhetorically, if you wanted to see the true temperature of the intake air just prior to combustion wouldn't you want it located into the lower intake? I believe that isolating the IAT sensor from the background radiant heat of the engine as much as you can will let the tune do it's job in regards to intercooler effectiveness. The tune (per Dave) also takes ECT into account, similarly to IAT, so engine heat also effects timing calculations - along with probably a half-dozen other factors. Almost make you wish you had a distributor cap to mess with?
 
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