Low temp thermostat

CSH-HQ nacelp at jvlnet.com
Wed Oct 27 19:07:07 GMT 1999


Funny how agreement goes.
OK, all the NASCAR teams are wrong.
BTW, I have tried to optimize fuel and spark curves so the following 
statemnt is wrong since you used the word all,
OK, my next comment will be about GMECM, this is flat getting ridiculous.
Grumpy

>
> All of us who have tried to optimize fuel and spark curves have learned that
>cooler water temps allow you to run more aggressive spark advance, thereby
>making more power... it's a simple function of cylinder head temperatures,
>which dictate which temperature is optimal for combustion without overheating
>the mixture.  From the factory, combustion temps are kept higher than optimum
>for power and use a conservative spark curve, because this way they can ensure
>a more complete burn, at the cost of power.  Remember the old trick for passing
>emissions by retarding timing?  Increasing combustion temps achieves the same
>effect, up to a point.  Good for the environment, not necessarily good for
>power.
> Daniel




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