[vristang]

Originally Posted by Rev

Why not put the sensor where it picks up actual inlet air temp and get the computer programmed to function with that actual correct info? I'm not familiar with all that, but it seems reasonable to start from a correct data input.

Rev

The air temp at the inlet/filter is not really the concern. What the computer needs to know is what temp the air is when it enters the combustion chamber. Intake air temp will influence potential for detonation, so the computer uses the ACT signal for timing calculations (among other things I am sure). As the air travels throught the intake, it does pick up some heat from the manifold, increasing its temp. It is always better to measure directly, than to try and extrapolate.

Yes you could move the ACT anywhere you wanted, and reprogram the computer. Tuning the computer is not within the scope of most of us though, as it takes some specialized equipment. But as mentioned above, it is better to measure the temp directly, where it matters.

As eluded to by Hozer88GT...
The ACT and the ECT have a temp range of 20C to 120C (~70F to ~250F), so if moving the sensor outboard and reporgramming the computer, it would be best to replace the stock ACT with a sensor with a more suitable range. A sensor that could register air temps of about 0F would probably be good?

jason