dropping out of VTEC when shifting
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From: Coastal CT
Originally Posted by Elistan' date='Mar 20 2007, 08:23 PM
Yes, it'll stay above 6000rpm. It's all about clutch slip. Doesn't change the physics that the speed at 8200 rpm in 1st gear translates to 5352 rpm in 2nd.
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Phil
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From: Jacksonville, FL
Actually...if the ap2 could stay in VTEC without clutch slipping or tire spinning, it probably would be quicker than the ap1. But as it is...their 1/4 mile times and 0-60 times are about identical.
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From: South Cali
haha holllllllly crap.. I thought I was trippin a couple times so now I do a couple redline shifts everytime I drive. will you argue with me if I show you a 3-4 redline shift? With NO SLIPPING at all.
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From: Lafayette, IN
I'm right there with you. Just went out for a little lunch break spin, and the 1-2 shift stays above 6K with minimal clutch slippage. If I shift far enough toward the limiter it feels like it would stay in VTEC even with NO slippage.
2-3 and 3-4 stay WELL above 6K with NO slippage, NO problem.
2-3 and 3-4 stay WELL above 6K with NO slippage, NO problem.
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From: Queen City, NC
Staying in Vtec in a 2-3 and 3-4 shift is easy imo, but the 1-2 is the one that is difficult. If the engine is dropping out of Vtec on the 1-2, its barely out, so I'm not sure that it actually is effecting anything, but AP2s with CDVs slip a lot on the 1-2 WOT shift so the rpms are never dropping out of Vtec, even if during a normal shift the rpms would drop below 6k. Same goes for the 2-3 and 3-4....
Who knows - for the conspiracy theorists - maybe Honda put the CDV in to keep the car in Vtec?
As for the tach lagging behind the engine, that would mean it was lagging up to redline too, right? So we're all shifting earlier than need be?
Who knows - for the conspiracy theorists - maybe Honda put the CDV in to keep the car in Vtec?
As for the tach lagging behind the engine, that would mean it was lagging up to redline too, right? So we're all shifting earlier than need be?
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Originally Posted by Saki GT' date='Mar 20 2007, 03:57 PM
Okay, so tonight I took my camera and recorded a 1-2 shift. Its quick and dirty, but I think it shows an AP2 staying above 6k on the shift. You can hear the effects of a CDV too.
The rpms dip to 6,400, maybe 6,300 on the 1-2 redline shift with my slipping clutch. If the clutch were to hook up immediately, I think it would be higher. Since the 1-2 is supposed to be the hardest, and you quickly reach illegal speeds by the time the 2-3 comes up, I just did a 1-2.
1-2 redline shift
Sorry for the quality, I was pinching the camera and steering wheel at the same time.
The rpms dip to 6,400, maybe 6,300 on the 1-2 redline shift with my slipping clutch. If the clutch were to hook up immediately, I think it would be higher. Since the 1-2 is supposed to be the hardest, and you quickly reach illegal speeds by the time the 2-3 comes up, I just did a 1-2.
1-2 redline shift
Sorry for the quality, I was pinching the camera and steering wheel at the same time.
Just giving and AP2 grief, I like 9k in my AP1
