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Old 10-06-2004, 09:35 PM
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Default Vtec launching techniques.

Sup fellas.

I took my lude to the track today.

New setup-h22a w/m2b4 tranny (lsd)

For some reason, I could not get traction to save my life.

I had the front tires set at 22psi.

I tried launching around 4000 and quick feathering the clutch
first and I got wheel spin even with the lsd.

So then I tried launching around 33-3500 and it didn't spin as much
but I still managed to get a high 2.3 60ft wtf

I could get better 60fts with my h23.

The car doesn't bog wherever I launch it at.

I had solid rt's from .085 to .200 so I know that's not the problem.

I tried launching higher around 5k and the tires spun like crazy
so I would let off the gas a little till I got traction then I would punch it
after that.

Finally when I did catch traction it wheel hopped on me a few of the
times I ran it.

I'm shifting around 7400-7500 rpm's into second with clean shifts
so I don't think that's the problem.

The track is pretty notorious for lack of traction but the ls1-lt1 guys were
hitting their 1.7-1.8 60fts so I can't really blame it on the track.

I have all season tires on my car for now but I need to invest in a better set.

I'm just a little dissapointed in this tranny, I was expecting to be hitting
low 2.2 high 2.1 60fts and it just wasn't happening.

So anybody have any tips on how i can get this **** to hook?
Old 10-06-2004, 10:25 PM
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Default Re: Vtec launching techniques. (SKDRCR)

I have the M2B4 tranny as well, and the best thing I can tell you and I think is very important is get a good set of tires I have had good results with Yokohama AVS ES100, I could cut low 2.1x 60' times with these, I'm currently trying the Falken Azenis and I have managed a best so far of a 2.018 but I now have a slipping clutch. With slicks I would also do 2.0x 60' times but My clutch has been going lately. But trust me on this one, get a nice set of tires and burn them up real nice to warm them up, then you'll be able to launch at 5k-6k and grab nicely
Old 10-07-2004, 04:17 AM
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Default Re: Vtec launching techniques. (SKDRCR)

hmm i know wat u mean... i lanuch at 2,000rpm and stil lose traction then wen i catch it...i floor it and lose it again...maybe my tyres just suck ***!...best 60ft is 2.4 and stil spinning most the way to 1/8mile
Old 10-07-2004, 05:05 AM
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Default

ha if i launch at 2 g's in my h23 in the street forget about it....my tires suck also...deff plan on getting some falkens!....hopefully my spinning issues will be cured..
Old 10-07-2004, 06:37 AM
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Default Re: (hOndafienD 04)

When i pull 2.2 i would feather the clutch at 5000. I wouldnt even spin at all ,but i think i can pull a better 60' if you spin till vtec then grab bc then you grab right in your powerband. Next time im gonna try this hoping for some 2.1.
Old 10-07-2004, 06:39 AM
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Default Re: (matix)

i launch at 5500 slipping the clutch ..works like a charm, running consistent 2.1s
Old 10-07-2004, 07:55 AM
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Default Re: (PreludeRacer023)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PreludeRacer023 &raquo;</TD></TR><TR><TD CLASS="quote">i launch at 5500 slipping the clutch ..works like a charm, running consistent 2.1s</TD></TR></TABLE>

Maybe i'm just not slipping it slow enough.

I think it's definately time to invest in a better set of tires though.
Old 10-07-2004, 08:01 AM
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Default Re: (SKDRCR)

AWESOME!!! Glad your H22 is running well.

I wish I could've gotten an LSD tranny with mine. However, I paid less than $1300 for my whole H22 swap with a new water pump, timing belt, and seals picked up. I can't complain.

Old 10-07-2004, 10:15 AM
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Default Re: Vtec launching techniques. (SKDRCR)

Tires do play a factor in good 60' times. When I use to go to the track, I would keep it at around 4.5k and just feather the clutch (almost dropping it). Ran 2.2's.
Old 10-07-2004, 10:19 AM
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Default Re: Vtec launching techniques. (bustdesenuts)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bustdesenuts &raquo;</TD></TR><TR><TD CLASS="quote">Tires do play a factor in good 60' times. When I use to go to the track, I would keep it at around 4.5k and just feather the clutch (almost dropping it). Ran 2.2's.</TD></TR></TABLE>

I think it's time to invest in a set of bfg's

should I go with 205 50 15's or 225 50 15's

i'm leaning towards the 205's
Old 10-08-2004, 12:21 PM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">I think it's time to invest in a set of bfg's

should I go with 205 50 15's or 225 50 15's

i'm leaning towards the 205's</TD></TR></TABLE>

What kind of tires are you on now? And also which BFG's are you looking into? Stock 5th gen lude's are on 16's not 15's also. But personally I like keeping the tire size stock at 205/50. I purchased a set of Kumho's 712's, decent tires for the price.
Old 10-08-2004, 12:48 PM
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Default Re: Vtec launching techniques. (bustdesenuts)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bustdesenuts &raquo;</TD></TR><TR><TD CLASS="quote">

What kind of tires are you on now? And also which BFG's are you looking into? Stock 5th gen lude's are on 16's not 15's also. But personally I like keeping the tire size stock at 205/50. I purchased a set of Kumho's 712's, decent tires for the price.</TD></TR></TABLE>

I have a 4th gen.

Right now it has Bridgestone Eager 205 55 15's on it.

These tires go bloats

These are the tires i'm looking into.



G force TA drag radials
Old 10-08-2004, 07:25 PM
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Default Re: Vtec launching techniques. (SKDRCR)

SKDRCR,

I too am on the same boat as you, launching these cars suck I get the minimal amount of wheel spin, when launching at 2.5k-3k and thats on Dunlop sp8000 (205x55x15), I was going to buy some slipstreams to try and lose some driveline weight since our stock wheels (94-96) weigh only 16lbs each, which would give me about a savings of 5lbs per axel....... I too am debating on getting 205x50x15 in the ES100.. But for DRS I plan to go with the 205x50x15 in the BFG Gforce... the 205s have a higher rolling resistance as opposed to the 225s according to tire rack.

vnt
Old 10-09-2004, 05:20 AM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">

I think it's time to invest in a set of bfg's

should I go with 205 50 15's or 225 50 15's

i'm leaning towards the 205's</TD></TR></TABLE>

go w/the 225's trust me. they grip like hell, and they dont scrub..im lowered a good bit also. using stock rims
Old 10-09-2004, 05:26 AM
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Default Re: Vtec launching techniques. (fastludeh22)

also might want to try around 15-17 psi, just make sure they arent too low.
Old 10-09-2004, 06:32 AM
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Default Re: Vtec launching techniques. (fastludeh22)

Did you notice a change in MPH up/down?

vnt
Old 10-09-2004, 08:22 AM
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Default

The best I've seen on H22's is to rev to ~5k and very lightly slip the clutch. It apparently takes a lot of practice to keep the tires on the edge of traction by slipping it that much, but it's supposed to give the best times.
Old 10-09-2004, 09:33 AM
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Default Re: Vtec launching techniques. (fastludeh22)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastludeh22 &raquo;</TD></TR><TR><TD CLASS="quote">

go w/the 225's trust me. they grip like hell, and they dont scrub..im lowered a good bit also. using stock rims</TD></TR></TABLE>

That's good to know

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vntperformance &raquo;</TD></TR><TR><TD CLASS="quote">Did you notice a change in MPH up/down?

vnt </TD></TR></TABLE>

Not really, but I didn't lower the tire pressure any less than 22lbs.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LudeyKrus &raquo;</TD></TR><TR><TD CLASS="quote">The best I've seen on H22's is to rev to ~5k and very lightly slip the clutch. It apparently takes a lot of practice to keep the tires on the edge of traction by slipping it that much, but it's supposed to give the best times.</TD></TR></TABLE>

Koo, I tried that a few times.
I guess i didn't slip it slow enough though.
Old 10-09-2004, 10:27 AM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">
Koo, I tried that a few times.
I guess i didn't slip it slow enough though. </TD></TR></TABLE>

Yeah, I tried it too w/ my new motor and couldn't get it right; i kept spinning. Then again, I got that Cerametallic clutch.

Now I just dump it at 2k
Old 10-09-2004, 01:35 PM
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Default Re: (PreludeRacer023)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PreludeRacer023 &raquo;</TD></TR><TR><TD CLASS="quote">i launch at 5500 slipping the clutch ..works like a charm, running consistent 2.1s</TD></TR></TABLE>
I totally agree with this technique, hit 5k-6kish rpms and hold it when you see the two yellows slip it but keep the gas steady, dont let the revs drop.You should peel out a little, thats a good sign, but dont hop. Modulate the clutch and gas to catch traction but keep the rpms still high, when you do catch traction just floor the gas and you probably got a good launch.

Also mess with tire pressure, when i pulled 2.1s on my shitty stock re 92 tires in da old lude the pressure was at 20lbs. When launching also, you could pull awsome times with shitty tires becuase the key is the soft side wall, so it collapses... thats why azenis arent too great for dragging since the side wall is stiff. The compound is what makes people think they will pull crucial 60fts with em.
Old 10-09-2004, 03:22 PM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">
I have all season tires on my car for now but I need to invest in a better set.
</TD></TR></TABLE>

theres your problem right there, i was running allseasons the first time i took my h22a to the track also and it would just wheel hop straight down the track, gotta get some sticky tires, however i sitll managed to get 2.2s 60fts, with new tires im shooting for 2.0 60fts


heres how i do it:

i launch from like 3-4k
feather the clutch with it halfway engaged
all the while only givign the car like 1/2-3/4 throttle.

give that a try, it seems to hook up the best for me when i do that
Old 10-09-2004, 04:51 PM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">

I'm just a little dissapointed in this tranny, I was expecting to be hitting
low 2.2 high 2.1 60fts and it just wasn't happening.

?</TD></TR></TABLE>

wanna sell the tranny?
Old 10-09-2004, 07:33 PM
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Default Re: Vtec launching techniques. (spnbb2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spnbb2 &raquo;</TD></TR><TR><TD CLASS="quote">
i launch from like 3-4k
feather the clutch with it halfway engaged
</TD></TR></TABLE>

Only problem with that is my clutch enguages about a
quarter of the way up so it makes it a little harder to
feather it. <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtec+boost=v8 killa &raquo;</TD></TR><TR><TD CLASS="quote">

wanna sell the tranny? </TD></TR></TABLE>

Nah, I'm gonna try some better tires
Old 10-09-2004, 07:37 PM
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Default Re: Vtec launching techniques. (SKDRCR)

Forget that, as soon as my tb is back from maxbore and my skunk2 chip is here (monday), im heading to the track on friday....hopefully car will break into the 14s since the weather is suppose to be in the high 40s.... probably will slap in my test pipe too. Vafc2 is in. My best time 3 weeks ago was a 15.1 and that was w/ I/H/E and i left the tires at 32lbs, maybe i'll lower them to 22lbs.....lets see?

vnt
Old 10-09-2004, 09:19 PM
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Default Re: Vtec launching techniques. (SKDRCR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">I have all season tires on my car for now but I need to invest in a better set.</TD></TR></TABLE>

Theres your problem right there, lsd cant make up for really bad tires...well a little
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