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Old 06-25-2008, 10:05 PM
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i dont know what this is considered so i here i go...i apologize if theres already a topic on this but...
I drive an auto lude and when racing, vtec goes in n out every gear
for example, vtec will hit at 5000 but shifting from 1st to 2nd the rpms drop to about 4000 then it has to re-enter vtec. I'm almost positive that in the manual transmissions it will stay above the vtec mark when changing gears...is there any inexpensive way to change this. I dont really want to have a vtec controller to make vtec hit any earlier then it does. and i also dont want to mess up any of the other things whiile driving normally.
I'm guessing a chip would do the job but im very unsure.
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Old 06-25-2008, 10:09 PM
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I have an auto 2000 auto as well, I use the SS because I get a much better time with it and I piss off my V6 VW co-worker who struggles to pull away from me. As for an inexpesive way (free) I don't know, I think even nothing cost money these days, lol.
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Old 06-25-2008, 10:22 PM
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by SS u mean the tip tronic i cant spell the work before shifter its something like seque.... right? anyway my friend also has a vr6 vw 6-speed and i come within a length everytime and if my car would just stay in vtec!!! i would have him with no problem... anyway if there is a chip i dont want to shift at higher points while normal driving only wen at higher rpms...to make it more clear from my above post
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Old 06-25-2008, 10:29 PM
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Yeah that thing..... I'm looking into getting my car dyno'd and tuned to see what difference that makes, see if I can make more hp/tq without expensive upgrades as well. About the vtec problem, I don't think I have that problem and I don't know what to tell you......sorry
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Old 06-25-2008, 10:33 PM
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well does ur car stay above the vtec "zone" when using that?
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Old 06-25-2008, 10:38 PM
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Last time I checked, yes. I shift at or about7500/8000rpm and my car seems to stay in the v-tec zone, but now that you said that I will find out for sure. I'm taking it to the track again tomorrow to see what she rans like and I'll let you know for sure.
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Old 06-25-2008, 10:41 PM
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ok cool...get back to me... well on the way there floor it in regular drive and see if u see what im talking about going out of the vtec
p.S. when i got my trans rebuilt they said not to use that SS cuz it messes up the trans but the trans shop is a lil retarded so i still do on occassion
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Old 06-25-2008, 10:49 PM
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I will try that for you. I heard from many people to stay away from SS but now and then I use it as well, yet I'm on my 3rd tranny so they might be right.
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Old 06-25-2008, 10:58 PM
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Yes using The SS can mess up the tranny If u use it all the time in normal driving autos wear not meant to stay at high RPMs from long. If you shift under 3k in normal driving it will be ok. Out side of doing a rolling start no reason to use it. It will **** it's self at 7500-8000 any way any unless you and get it perfect ever time. with means you need to shift at about 7200 for the delay to shift at 7500. depending on wear ur redline is b/c i will but money every ones tac is juts a lil bit off.
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Old 06-25-2008, 11:06 PM
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It has been a while sine i did my lil SS vs D test i did. If i remember right the **** points wear the same and my times wear the same from a stop. From a roll i was a lil faster i think about a 1/2 a second. Not worth the risk if you ask me.
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Old 06-25-2008, 11:06 PM
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I use the SS all the time, no problems for me.

The crossover point is 5200RPM, but it doesn't fall off the high cam until the revs drop below 4200, so if you shift late in the range of the high cam you will stay on it.

Unless you have performed the basic I/H/E mods then moving the VTEC crossover point will not help your case. With the stock engine the crossover point is at the optimal position, where the torque curves of both camshafts cross over. If you move the crossover point earlier, you'll actually be shifting into a rev range where there would be less torque available than where you would be in the standard position.
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Old 06-26-2008, 09:50 PM
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ok i will try shifting at a high rpm next race for the hell of it. i jus really really need this bad boy to stay in vtec it will make my car so much faster. becuase it takes a good 2-3 seconds to get back into vtec every gear so if it can jus stay in it while at high rpms i will improve alottt.
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Old 06-27-2008, 08:44 AM
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I ran last night and once I hit v-tec, it went back into v-tec quick between gears. Getting v-tec to kick in for first gear though takes FOREVER. I was so pissed, I wished I could open the tranny, take out first gear and throw it in a crusher. note... AT is not recommened for 1/4 mile
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Old 06-27-2008, 12:06 PM
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Look in to making a shift kit. I seen them work great and help out a lot. They don't make one for the lude but it wouldn't be to hard to make one.
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Old 06-27-2008, 08:39 PM
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But a shift kit won't get around the fact that first gear is taller than most professional basketball players. I mean I can do 75km/h in first gear (the local speed limit is 60!) with a thousand revs up my sleeve. I mean, WTF is the point in that?!
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Old 06-27-2008, 11:35 PM
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well i heard today that if u change ur cams u can get a high n low cam... and it sounds bad ass...i dont really kno wat havin a high cam and a low cam means so if anyone knows please explain... but i still insist on getting vtec to stay put while racing i wish there was a racing button on the lude like the lambos...and when u say it takes for ever in first gear u mean ur launch right...very slow...i have the same problem if i had a good launch and stayed in vtec i think preludes would be one of the best cars not considering they already are. im researching hardcore about this though
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Old 06-28-2008, 02:41 AM
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You already have a high cam and a low cam - it refers to the two cam profiles of the VTEC engine. The low cam is the low rev profile for decent low end torque and drivability, the high cam is the VTEC one with the high valve lift and duration for high rev power.
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Old 06-28-2008, 10:07 AM
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Quote:
Originally Posted by Kozmo98Prelude View Post
but i still insist on getting vtec to stay put while racing
Only way that would happen is if your car was a 5speed. Until then, yall are gonna have to deal with the revs dropping with the auto.

Brash, are you serious? 1st gear in the auto is that tall? Dang. In first, i redline at like 30 or 35 mph. Oh yea.....you're talking KM. Silly "across the ponder".
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Old 06-28-2008, 06:00 PM
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across the ponder? haha i like km better anyway they make me feel a lil better wen im htinkin of tokyo drift about goin 180k the cops cant catch me...and my first gear in the auto hit a lil b4 50mph...but that rev drop is killin me so bad im very upset
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Old 06-28-2008, 09:17 PM
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Like I said, if you shift it up at the last possible moment, it drops the revs down to the bottom of the high cam range. I've actually tagged the limiter a few times when I've been going hard at it.
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Old 06-28-2008, 10:57 PM
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You don't want to change VTEC crossover.
And just what would you want the chip to do? Shorten the gears?
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