Originally Posted by pdexta
(Post 1330994)
All you need is more power. At your power no-lift shift, launch control, a better tire seem unnecessary to me.
I would think with those times you're probably a touch under 200whp. Add another 50whp to it and you'll drop way more time than any other little thing you could change. And the only reason I'm not at 250whp is because I don't know how much HP I have, and I'd rather have less than break something. And I'm too lazy to bring it to a dyno. They're all so far away! |
Well, no lift shift would probably get him .5 seconds, thats a pretty big difference.
Obviously get more power though. |
Originally Posted by thumpetto007
(Post 1331001)
Well, no lift shift would probably get him .5 seconds, thats a pretty big difference.
Obviously get more power though. |
Originally Posted by pdexta
(Post 1331012)
Where'd the half a second number come from? That seems awfully optimistic to me. If it's accurate I wish I'd bothered to set it up when I was running mid 11's!
FFS on a turbo vehicle is a really big deal. |
What is the actual difference between proper FFS and just keeping your foot on the gas between shifts? The latter would just bounce off the rev limiter; what does the former do?
|
I have timeslips for before ffs and after ffs, on a naturally aspirated car, not only do I chirp 2nd AND 3rd gear, but at the same mph trap speed, my ETs were .4 seconds faster, a little over .1 seconds per shift.
Since skidude would be shifting 4 times, even without a turbo, I'd estimate .5 seconds faster over all. With the turbo, not losing boost because you are never off the power would most likely benefit even more per shift. I would say .8 seconds at the same power level, (once he gets more consistent 60 foots) is easily attainable with the ffs on his car. Launch control will help you get your launches more consistent, leading to a more consistent 60foot. |
Retards timing. Helps keep boost up. Puts you at the correct RPM for the new gear.
|
Originally Posted by skidude
(Post 1331024)
What is the actual difference between proper FFS and just keeping your foot on the gas between shifts? The latter would just bounce off the rev limiter; what does the former do?
|
Originally Posted by skidude
(Post 1331024)
What is the actual difference between proper FFS and just keeping your foot on the gas between shifts? The latter would just bounce off the rev limiter; what does the former do?
Originally Posted by thumpetto007
(Post 1331025)
I would say .8 seconds at the same power level, (once he gets more consistent 60 foots) is easily attainable with the ffs on his car.
|
Originally Posted by aidandj
(Post 1331026)
Retards timing. Helps keep boost up. Puts you at the correct RPM for the new gear.
|
I mean, think what you want, but if a naturally aspirated car can drop over a tenth PER shift, I think it is likely that a turbo car, maintaining full boost after each gear shift, over 5 shifts, gains .3 seconds?
Even with a responsive turbo, going from vacuum to 10psi is not instantaneous. I agree, the larger the turbo, and/or the higher the target boost pressure, the more no lift or flat foot shifting will benefit the elapsed times. |
Originally Posted by thumpetto007
(Post 1331036)
I mean, think what you want, but if a naturally aspirated car can drop over a tenth PER shift, I think it is likely that a turbo car, maintaining full boost after each gear shift, over 5 shifts, gains .3 seconds?
Even with a responsive turbo, going from vacuum to 10psi is not instantaneous. I agree, the larger the turbo, and/or the higher the target boost pressure, the more no lift or flat foot shifting will benefit the elapsed times. |
my MSM went from 13.9-14.1 without, to 13.6-13.7 with
my Subaru went from 12.0-12.2 without, to 11.7-11.8 with pretty significant in my opinion |
All times are GMT -4. The time now is 11:01 AM. |
© 2024 MH Sub I, LLC dba Internet Brands