Annoying VTEC step?
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Annoying VTEC step?
Hi, all. It's my first post here and I'm here because I've made the decision to trade in my EP3 Civic Type R for an early S2000. I have a specific question about the VTEC change-over in the S2000. I had a big problem with the EP3 in that is is too easy to drop out of VTEC when changing up a gear (even when leaving it 'till you hit the limiter) resulting in a nasty momentrary lag in torgue. I spent mega bucks on a re-map which did away with the problem brilliantly giving a smoother power curve. I'm just wondering if you guys have the same problem with your cars?
Cheers
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no the s2k has no problem staying in vtec range after shifts. THe car most notable that gets out of vtech/vvti range is the toyota celica gts and matrix xrs. There vvti crossover is way too high, when they shift it's like a vvti lag.
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From: TopDown, California
Originally Posted by raceface,Dec 26 2006, 10:17 PM
Hi, all. It's my first post here and I'm here because I've made the decision to trade in my EP3 Civic Type R for an early S2000. I have a specific question about the VTEC change-over in the S2000. I had a big problem with the EP3 in that is is too easy to drop out of VTEC when changing up a gear (even when leaving it 'till you hit the limiter) resulting in a nasty momentrary lag in torgue. I spent mega bucks on a re-map which did away with the problem brilliantly giving a smoother power curve. I'm just wondering if you guys have the same problem with your cars?
Cheers
Cheers
I've ECU upgrade, my VTEC zone now between 4200rpm ~ 8500rpm! How can I miss that VTEC power
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Originally Posted by steven975,Dec 27 2006, 12:41 AM
you mean vvtLi
vvti is just timing, vvtLi is the one that is like DOHC i-VTEC
vvti is just timing, vvtLi is the one that is like DOHC i-VTEC
In the old b16's and b18's you're supposed to use a vtec controller to make vtec come in later, so when it switches over to the larger cam lobe, it wouldnt have a dip in power. For the s2k, when you first get into vtec you dont really feel anything.
Until you reach about 7600-9000 you start feeling a surge of speed.
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Originally Posted by HKSSupra91,Dec 27 2006, 08:58 AM
For the s2k, when you first get into vtec you dont really feel anything.
Until you reach about 7600-9000 you start feeling a surge of speed.
Until you reach about 7600-9000 you start feeling a surge of speed.
AP1:
It's the largest increase in the entire powerband.
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Hey, thanks for the replies and especially that dyno chart. That small dip in power followed by the surge is just how my graph looks. This is what I resolved with the dyno tune. My problem was that on some gear changes, you fell right into that small dip which was really frustrating. Anyway, seems like I wont have to raid the bank for a re-map for the S2000!
Cheers.
Cheers.
