Quote:
Originally Posted by ALLTRBO
So the real question is why a car with a measured 66% increase in power would LOSE mph?
If I wanted to, I could test my car's launch and 1-2 shift then leisurely accelerate the rest of the way. In fact, I've done that too (a few times in a row). I bet there were a few people in the stands laughing at slow my car was trapping, heh.
Of course he wasn't doing quite that from what we know.
Completely aside from the fact but something to also keep in mind, I bet his car is one heavy mother with all that extra bling (and boom?) equipment on it.
Someone mentioned that at that point, at least for the ambient temperature (I hear it was pretty warm that day) and through a whole 1/4 mile run, he was leaning out a good bit at the last half of the track and so eased up each time (even if he didn't let up, severe detonation will kill all the power you would have otherwise made by way of the ECU trying to save your engine). I also heard that the car was further tuned after that, and the issues were ironed out.
Dyno numbers on the same dyno at the same time time after any given mod will give you a consistent indicator of an actual percentage of power increase, especially when the percentage of increase is that great. The dyno inconsistencies will NOT affect the readings by more than a couple percent at most. This car made repeated runs (after cooldown) and the results were consistent. They even dyno'd a stock LS3 SS right afterward and it made 53 HP less.
So at least during dyno conditions through one gear (with cooldowns between), this car really does have about a 66% increase in peak HP, and the additional area under the curve looks very nice as well.
Do you really think this car actually lost power with the STS kit on it? Seriously?
|
Do you really think a 500HP car, even with a few extra pounds and over sized tires can't break out of the 15's? Or only trap at 90 MPH? Seriously?
I was there... I ran my car at about the same time as the STS/AAC car. Car went 14.39 @ 97.38 MPH.... Car was trapping 96 to 97 all day long...
Personally, I don't care about dyno sheets... I don't race on a dyno, I race on a track... Time slips are a much more accurate reflection of real world performance...
Oh, and you mention he was leaning out? STS just said the tune wasn't the issue??? And I don't know where you heard the car was tuned after that... because I pretty much know that it wasn't..
You keep believing in dyno sheets... I'll keep my trust in my time slips..