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Top 2GNT Technical Performance/Engine Real Racing topic #1097
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Subject: "launching in MILE HIGH" Previous topic | Next topic
bing001Apr-29-02 04:54 AM
Member since Feb 18th 2002
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#1097, "launching in MILE HIGH"


          

I don't know if anyone else lives in DENVER, but after going to Bandimere a few months ago I was really depressed. I ran a real shitty time 18 and 88 mph.

I found out that my head gasket was blown shortly afterwards.
The air up here sucks.

Anyways, lately I've been trying to launch at about 2.5 rpms just enough to hear a little tire spin. Just wondering whether or not my technique may be the problem?

I've heard of people launching their cars at 4 rpms, when I do this all that happens is a burn out?

Any advice?

Former 420a owner
Former 98 GST owner
04 Lancer Evolution VIII

  

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vegasdsmrApr-29-02 05:11 AM
Old School 2GNTer
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#1098, "RE: launching in MILE HIGH"
In response to Reply # 0


          

ya, i roasted my launch at anything over 2800 rpms at the trak... 88mph is a high trap.. that "should" net u in the high 14/15s i would think.. w/the elevation your talkin about, prolly more mid 15ish..

i cant give any advice on luanchin, cuz i cant luanch for $hit

good luck... the # u said sounds about right... practice makes perfect

03 srt-4 13.130@112.47mph (n2o, stock turbo, 10/2003)
now: 20g, portfueler, bpu+++ (track/dyno times tbd...)

i farted on your wiki

  

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SEA97GSApr-30-02 10:05 AM
Old School 2GNTer
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#1099, "RE: launching in MILE HIGH"
In response to Reply # 1


          

88MPH is a good trap speed, but it's nowhere near a high 14 second time ET wise. With a great launch and good shifting, it could be a 15 second timeslip.

As for the launching, it sounds as if you're just dropping the clutch and flooring it. You'll roast the hides everytime. Rev it to 32-3500, pull the clutch only to the engagement point, hold the revs and pull the clutch the rest of the way. That's the long version of slipping the clutch a little. You're putting more HP to the flywheel and using the clutch to adjust for wheel spin.

I've launched at 4500RPMs, with drag radials, with this technique with success enough to get 2.2x 60' times.

97 Eclipse GS-15.463@88.57MPH - RIP
92 Talon TSi AWD-12.927@105.47MPH

  

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Fast420AApr-30-02 03:58 PM
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#1100, "RE: launching in MILE HIGH"
In response to Reply # 2


          

I've dropped the clutch at both 4500 and 5000 on shitty street tires with 2.4 60's and 16.4's at 84mph.


________________________________________________________________________________________
current status - No 3rd Gear synchro


http://hometown.aol.com/ohshootuhh/
www.Fast420A.com


Flame Red SRT-4 GT40,8.5:1 Built Shortblock, Brian Crower Stage 2 Cams, etc etc etc...

  

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stylindsmMay-10-02 06:43 AM
Member since Feb 27th 2002
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#1101, "RE: launching in MILE HIGH"
In response to Reply # 0


          

dude im up here in denver too! i launch my baby at around 5k and it does fine... i guess it also depends on how much psi you have in your tires. i have around 29 or 30

  

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stylindsmMay-10-02 06:45 AM
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#1102, "RE: launching in MILE HIGH"
In response to Reply # 0


          

oh yeah and when i race i drop at like 5k rpm and i take my friends gsrs fist 2 gears.... a 92 b17 gsr and a 01 gsr, so i stay around 5.

  

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bing001May-10-02 04:21 PM
Member since Feb 18th 2002
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#1103, "RE: launching in MILE HIGH"
In response to Reply # 5


          

Right on..

We should meet up and go to Bandimere sometime...

Former 420a owner
Former 98 GST owner
04 Lancer Evolution VIII

  

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