Originally posted by wantsansvt: this all about Demon not believing that putting an SVT PCM in a contour se sport 5spd would actually give it a horsepower gain.
Not quite. Thanks for putting words I didn't say in my mouth.
This is about the fact that an SVT PCM has no real significant performance changes in the tuning except for the timing curve. That is a fact and not an ignorant statement.
On the best day the timing bump is not going to give 1/3 of what they are claiming.
I still notice there is ZERO A/F data put forth on their behalf. Why exactly is that? Could it be that they either: 1 - did not do it because they are not smart enough to realize it was important or 2 - it proves the A/F was off the deep end rich during that bogus "baseline" pull.
Where all the pulls done on a reset PCM? If not the results are voidable.
Where the injectors changed when the PCM was changed? If not the results are voidable.
Was the MAF changed when the PCM was changed? If not the results are voidable.
I'll stop there for now.
Why you ask?
Because the fuel trim is going to change for every setting. Changing from one to another without reseting the PCM left the prior adaptations still active. A very novice mistake.
Because the different injector PCM settings would call for a different pulse width respectively. Without an injector swap you are getting an erratic change in fuel flow.
Because the MAF does not match the PCM's MAF function. Layman's terms. No match = incorrect fuel trim yet again. For instance some aftermarket MAFs hack the function to lean out the fuel mixture.
This also is ON TOP of everything I have previously posted and not one of those areas have been addressed. Only the fact I did not take the time to find out what year he was talking about in regards to PATS.
YOU DO REALIZE THAT ENTIRE PART YOU QUOTED WAS TALKING ABOUT PATS AND NOT PERFORMANCE RIGHT???
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
