IAT placement with turbo?

FastCougar · 08-28-2007, 01:21 PM

I would assume that the best place for the IAT sensor would be just before the throttle body (after the intercooler) vs. after the MAF (pre turbo). Is this correct, or should it remain just after the MAF? I would think it really wouldn't matter much since going pre-turbo with an intercooler that the intake charge temp wouldn't raise that much if the intercooler is doing it's job.

Blackcoog · 08-28-2007, 02:23 PM

You'd definitely want it as close to the throttle body as possible or it will be reading off from what is actually going into the engine.

FastCougar · 08-28-2007, 06:00 PM

Quote:

Originally Posted by Blackcoog

You'd definitely want it as close to the throttle body as possible or it will be reading off from what is actually going into the engine.

I figured as much ... thanks for confirming.

gamiller · 08-31-2007, 01:59 AM

Trevor, Dan G made a point to tell me he was locating the IAT just ahead of the TB rather than just after the MAF so that the engine computer could get an accurate reading of the air that was entering the engine itself.

08-28-2007, 01:21 PM	#1 (permalink)
FastCougar In search of more boost! Join Date: Nov 1999 Location: Kearneysville, WV Posts: 8,507 Images: 743	IAT placement with turbo? I would assume that the best place for the IAT sensor would be just before the throttle body (after the intercooler) vs. after the MAF (pre turbo). Is this correct, or should it remain just after the MAF? I would think it really wouldn't matter much since going pre-turbo with an intercooler that the intake charge temp wouldn't raise that much if the intercooler is doing it's job. __________________ 1999 Mercury Cougar - Turbo'd 3L. Status: Parting out car: Engine for Sale \| Trans for Sale Power: 391.9 hp @ 6750 rpm \| 374.2 lbs/ft. @ 4250 rpm \| boost @ 11 psi For Sale: 19" Konig Verdicts with Toyo ProxesFZ4 225/35ZR19 Tires - $700 shipped!

08-28-2007, 02:23 PM	#2 (permalink)
Blackcoog 3L Install Maestro Join Date: Oct 2000 Location: Minneapolis, MN Posts: 4,606	Re: IAT placement with turbo? You'd definitely want it as close to the throttle body as possible or it will be reading off from what is actually going into the engine. __________________ Current Rides 1999 MTX Cougar, 3L Supercharged 325hp and 278tq 1999 SVT Contour, Ported 3L Visit: http://www.3lduratec.com For info on ready to drop in 3L's and our supercharger kit.

08-31-2007, 01:59 AM	#4 (permalink)
gamiller Emission Test Flunkee Join Date: Jun 2001 Location: Fairfax, VA Posts: 2,783 Images: 5 Blog Entries: 3	Re: IAT placement with turbo? Trevor, Dan G made a point to tell me he was locating the IAT just ahead of the TB rather than just after the MAF so that the engine computer could get an accurate reading of the air that was entering the engine itself. __________________ Roush Performance Suspension Nautilus Performance Stage 3 Turbo Kit

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