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having problems with my launch, need input.

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Old Jul 24, 2004 | 05:20 PM
  #1  
hbracer93's Avatar
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From: jewett city, CT
Default having problems with my launch, need input.

i have an all motor ls/vtec pushing 195whp, and 136tq and i can't break a 2.2 60' times on street tires. i only got 2 runs, so i didn't get a lot of time to experiment. any advice you guys can give would be great
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Old Jul 24, 2004 | 10:17 PM
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SlowMotion's Avatar
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Default Re: having problems with my launch, need input. (hbracer93)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hbracer93 &raquo;</TD></TR><TR><TD CLASS="quote">i have an all motor ls/vtec pushing 195whp, and 136tq and i can't break a 2.2 60' times on street tires. i only got 2 runs, so i didn't get a lot of time to experiment. any advice you guys can give would be great</TD></TR></TABLE>

What size and type of street tires are you using? Unless you want to purchase slicks, I would suggest BFG drag radials and low PSI. To find out exactly how low you will have to play arond w/PSI and see what works best with your setup. Plus whats your susp/alignment setup?
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Old Jul 25, 2004 | 08:26 AM
  #3  
CNSK's Avatar
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Default Re: having problems with my launch, need input. (hbracer93)

How high are you reving? Try feathering out your clutch rather then dropping the clutch....
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Old Jul 25, 2004 | 10:18 AM
  #4  
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From: jewett city, CT
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i have 15" brigestone potenzos, with stock shocks and h&r springs, i rev to 8500rmps...see i was using the gas alone and tring to control it that way, next time i go to the track i will try that
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Old Jul 26, 2004 | 08:38 AM
  #5  
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From: nc
Default Re: (hbracer93)

oh my goodness..8500?? you need slicks...potenza are not gonna hold......trying reving 3500-4000 and work on high or how low you need to set your rpm at....
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Old Jul 29, 2004 | 07:54 AM
  #6  
hbracer93's Avatar
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From: jewett city, CT
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sorry i must of mis understood the question off the line i launch at like 2500 to 3000rmps
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Old Jul 29, 2004 | 08:52 AM
  #7  
dohcter g's Avatar
 
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From: Forest City, NC, USA
Default Re: (hbracer93)

Use the hand barke and let the car pull while the lights drop. When green drop the barke and feather the clutch. I ran 2.05 60 with street tires using this method. Also if you want to get good traction with street tires use VHT Track bite.
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Old Jul 29, 2004 | 10:22 AM
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CompressionFed's Avatar
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From: Virginia Beach, Va, USA
Default Re: (dohcter g)

This is the method that I use also...pre-load the suspension, rev to 3500-4000, and slip the clutch.

I cut 2.0 60' on street tires.
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Old Jul 29, 2004 | 03:10 PM
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evilk's Avatar
 
Joined: Apr 2004
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From: providence, ri, usa
Default Re: (hbracer93)

hey wit street tire i launch at 5000 rpm and i hit a 13.2 on my ls/vtec
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