Staying in VTEC after 1st - 2nd shift
12-13-2005, 06:09 AM
#12
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Originally Posted by blue03s2k,Dec 13 2005, 06:56 AM
shift faster...
Easy answer, it can't...I dont understand what you're getting at here, care to shed some light on it?
12-13-2005, 06:20 AM
#13
I have an '05 with the 8000rpm redline and 2.2L motor and I have ZERO problems staying VTEC on all upshifts at redline. You just shift fairly quickly at redline or rev limiter and you'll be fine. When accelerating hard, you should run up near the rev limiter anyway (8200rpm for 2.2L motor) to get quickest acceleration times.
I had an '03 Vibe GT with the Celica GT-S tranny and motor and I had a damn hard time staying in 'lift' on the 1-2 and sometimes the 2-3 shift. The gearing was screwy with that car. I would run it right into the rev limiter and shift very hard into 2nd and it would still fall flat on it's face for a half-second before it climbed into 'lift' again. It did sound glorious though with an AEM cold air intake though on that 2ZZ motor as it wound out to it's 8250 fuel cut.
Anyway, no problems at all staying in VTEC with the S2000. Just shift fast near the rev limiter and you're cash money.
I had an '03 Vibe GT with the Celica GT-S tranny and motor and I had a damn hard time staying in 'lift' on the 1-2 and sometimes the 2-3 shift. The gearing was screwy with that car. I would run it right into the rev limiter and shift very hard into 2nd and it would still fall flat on it's face for a half-second before it climbed into 'lift' again. It did sound glorious though with an AEM cold air intake though on that 2ZZ motor as it wound out to it's 8250 fuel cut.
Anyway, no problems at all staying in VTEC with the S2000. Just shift fast near the rev limiter and you're cash money.
12-13-2005, 06:22 AM
#14
Originally Posted by 6SpeedTA95,Dec 13 2005, 07:09 AM
How the hell would shifting faster affect the RPM falloff between gears?
Easy answer, it can't...I dont understand what you're getting at here, care to shed some light on it?
Easy answer, it can't...I dont understand what you're getting at here, care to shed some light on it?
12-13-2005, 07:23 AM
#15
Originally Posted by 6SpeedTA95,Dec 13 2005, 09:09 AM
Easy answer, it can't...I dont understand what you're getting at here, care to shed some light on it?
12-13-2005, 10:49 AM
#16
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Originally Posted by QUIKAG,Dec 13 2005, 07:22 AM
Very easy, you bleed speed as you granny shift which affects your 'starting' rpm in the next gear. Trust me, if you pansy shift into a higher gear you're 'coasting down' as you spend a second or two shifting and it will most definitely affect your rpm in the next gear.
12-13-2005, 10:58 AM
#17
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Q: if you're WOT does that make a difference vs not quite having the pedal all the way to the floor? Once or twice my typical redline ->upshift->redline hasn't kept the car in vtec, but upon reflection I *thought* I might not have been flooring it at the time. If so, maybe the 'slow shifter' above is just not putting it all the way to the floor...
12-13-2005, 11:05 AM
#18
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Originally Posted by Elistan,Dec 13 2005, 10:52 AM
On newer S2000s with the 2.2 liter engine and 8000rpm redline, yes, the rpms will drop below the VTEC transition point during the 1->2 shift. Unless you slip the clutch deliberately. After driving a 9000rpm redline S2000, I found this behaviour very annoying.
12-13-2005, 11:41 AM
#19
Originally Posted by 6SpeedTA95,Dec 13 2005, 01:49 PM
Yeah but you really really REALLY have to shift slow to actually lose speed on the 1-2 shift at WOT in an S2k. Coming out of first the car is pulling so hard that it'll maintain its increasing velocity (albeit not as fast) between shifts. But I guess like you said if you really shift slow it might not. But man I can't really see shifting that slow if you're driving the car to redline ESPECIALLY in a car with a gearbox like an S2k
Although the difference of 1/2 sec. between a really fast shift and an average shift may seem like nothing to most people, the difference between landing in VTEC and being just 500 or 1000 rpm below it, may only be 1/2 sec if accelerating in 1st.
Quite frankly, being 500 rpm below VTEC is not a big deal unless you are on a drag strip where 1/100th of a second matter.
12-13-2005, 11:49 AM
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Originally Posted by xviper,Dec 13 2005, 12:41 PM
I'm guessing that a "really fast" shift can be accomplished in between 1/4 sec. to 1/2 sec., while an average shift can take up to a second and a "slow" shift can take another 1/2 sec.
Although the difference of 1/2 sec. between a really fast shift and an average shift may seem like nothing to most people, the difference between landing in VTEC and being just 500 or 1000 rpm below it, may only be 1/2 sec if accelerating in 1st.
Quite frankly, being 500 rpm below VTEC is not a big deal unless you are on a drag strip where 1/100th of a second matter.
Although the difference of 1/2 sec. between a really fast shift and an average shift may seem like nothing to most people, the difference between landing in VTEC and being just 500 or 1000 rpm below it, may only be 1/2 sec if accelerating in 1st.
Quite frankly, being 500 rpm below VTEC is not a big deal unless you are on a drag strip where 1/100th of a second matter.