Originally posted by Dave B:
I believe DemonSVT has removed his intake butterflies and his car runs particularily strong (14.7s@96mph). I don't know how he didn't loose some lowend torque when removing the butterflies.
I do have some low rpm power loss.
Below 2000rpm it's a dog (who freakin' cares, it's not a tractor :rolleyes: :p )
Below 2500rpm there is a small, but noticeable loss.
2500-3000 is about the same.
3000 and up is stronger.
Since I barely even get below 3k in normal cruising I don't see any drawbacks personally & the benefits are numerous...
I have the PCM giving me timing & fuel advance ~2500rpm instead of the stock 3400-4000rpm where the long runners have long run out of steam. (~3200-3250 on a stock SVT the short runners surpass the long runners - lower rpms on modified engines)
I also can tune the A/F with the S-AFC.