Has anyone made a "Power Wire" for the IAT? - Cherokee SRT8 Forum
 
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post #1 of 8 (permalink) Old 05-09-2007, 11:04 AM Thread Starter
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Has anyone made a "Power Wire" for the IAT?

It's a resistor that goes inline with IAT.
www.airram.com/parts.php?categoryid=75

Any ideals?

Thanks.
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post #2 of 8 (permalink) Old 05-09-2007, 11:13 AM
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Quote:
Originally Posted by SStampede
It's a resistor that goes inline with IAT.
www.airram.com/parts.php?categoryid=75

Any ideals?

Thanks.
Bills IAT sensor mod, reduce temp to 16* for $ 2.89
Hows that.
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post #3 of 8 (permalink) Old 05-09-2007, 01:07 PM
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Quote:
Originally Posted by SStampede
It's a resistor that goes inline with IAT.
www.airram.com/parts.php?categoryid=75

Any ideals?

Thanks.

We tested(dashhawk) this before we put the jeep in the shop. WE were able to change the temps to where ever we needed and there was a definite difference in timing.

Thinking of a switchable unit. Because if you leave the same resistor in for too long the PCM figures out the temps never change!

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post #4 of 8 (permalink) Old 05-09-2007, 01:25 PM
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Quote:
Originally Posted by FastSRT8GC
We tested(dashhawk) this before we put the jeep in the shop. WE were able to change the temps to where ever we needed and there was a definite difference in timing.

Thinking of a switchable unit. Because if you leave the same resistor in for too long the PCM figures out the temps never change!
With one of these IAT resistors, does the temp reading stay constant? Like, if it's at set to 40 degrees, is it ALWAYS at 40, or will it only go UP to 40?

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post #5 of 8 (permalink) Old 05-09-2007, 01:48 PM
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Quote:
Originally Posted by 9900rpm
With one of these IAT resistors, does the temp reading stay constant? Like, if it's at set to 40 degrees, is it ALWAYS at 40, or will it only go UP to 40?

It stays constant.
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post #6 of 8 (permalink) Old 05-09-2007, 01:51 PM
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Quote:
Originally Posted by 9900rpm
With one of these IAT resistors, does the temp reading stay constant? Like, if it's at set to 40 degrees, is it ALWAYS at 40, or will it only go UP to 40?
It stays fairly exact. You may have a degree +/- depending on outside temp but it should stay the same. The other problem is you have the outside temp sensor that is the same type of sensor. Its located right behind the grill next to the passenger headlight. I am not sure if DCM made this redundant also but we changed both so they would match.
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post #7 of 8 (permalink) Old 05-09-2007, 02:45 PM
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Originally Posted by GotStroke?
It stays constant.
Any way we can get something that only reduces voltage or whatever the sensor reads (not an electronics major), in a way that it keeps the same overall curve?

Playing with stuff like this is always dangerous. How far can we go with this? Would the factory knock sensor react quick enough and dump fuel + cut timing to save the motor if one was to bring the IAT down too much? Faking the IAT + hot weather + bad gas = BOOM!!

I'm interested in this mod though
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post #8 of 8 (permalink) Old 05-09-2007, 05:18 PM
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Quote:
Originally Posted by 9900rpm
Any way we can get something that only reduces voltage or whatever the sensor reads (not an electronics major), in a way that it keeps the same overall curve?

Playing with stuff like this is always dangerous. How far can we go with this? Would the factory knock sensor react quick enough and dump fuel + cut timing to save the motor if one was to bring the IAT down too much? Faking the IAT + hot weather + bad gas = BOOM!!

I'm interested in this mod though
A few members including Builder Bill have run the IAT resistor. In the past I built a few dozen variable resistor boxes for Mustang/Cobras that worked quite well. We have knock sensors, if there's any danger, they'll pull timing and dump fuel.
That being said I'd never run it with nitrous or forced induction, purely a N/A thing.
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