Quote:
Originally Posted by Jhunsberger
What do you think the biggest contributors are for the 127hp gain over the stock whipple tune? Were they the same dynos?
Its got to be a big difference in driving experience from the stock whipple tune to now, what do you think, impressions?
Can you tell when the by-pass valve is closing around 2500-3000 rpm?
|
Not exactly apples to apples since it was not the same dyno. The Whipple dyno with the canned tune was with IATs approaching 140 degrees the tune was pulling 2 degrees of timing, where as this dyno IATs were just over 120 so it was a full power pull. So I think the 530 was artificially low, by how much not sure. The Whipple tune is conservative by design AFRs were in the 11.6 to 11.7 range now it is around 12.0, so the tune is a big part of it.
Not doubt a huge difference in driving experience. The rpms ramp up much faster and it pulls much harder. Tune included a transmission tune as well, so with the TQ mananagment gone it shifts firmer. Took my wife or a ride in it. She says it is scary fast now.
Can't wait to get to the track.
Not sure when the by-pass valve is closing, I will need to pay attention.