Drag racing results; 12.7 @ 110 mph

Jim Green jeg1976 at yahoo.com
Wed Apr 28 10:26:34 EDT 2004

--- Cody <Cody at mail.craincorporated.com> wrote:
> >
> >Hey Cody, how much easier to launch the car is it
> with
> >the launch control?  I've just about got it working
> on
> >my car.  
> >
> Well, I actually haven't yet been to the drags with
> the launch control, and of course <sarcasm> I would
> *never* use it on the street </sarcasm>, lol.
> Honestly I have not really put it to a real test
> because I've never gotten the chance to play with it
> for any length of time. My issue at the strip (and
> even off) is that on a hard launch I spin the tires
> badly, or if I lower the tire pressure it would just
> fall on it's face until the boost came up. Right now
> what I'm hoping is that with the launch control I'll
> have enough boost to spin the tires just a bit even
> with the pressures lower, which would get me off the
> line quicker.
> For those that don't know what launch control we are
> talking about, it's pretty simple. Right now my rev
> limit is set to 6500. What I have is a button that
> moves my rev limit to a determined spot, in my case
> I usually keep it to about 4500rpm. This lets me
> hold the throttle wide open while I'm pushing the
> button, which lets the boost build up. I can even
> vary the boost level by finely tuning the fuel
> mixture at that spot, anywhere between about 1.4bar
> to 1.8bar. Since Jim can adjust his timing he will
> be able to pretty much get any ammount of boost he
> wants, from zero to full. When using launch control
> just get ready to start your race, push the button
> and pin the throttle. When the light turns green
> just let go of the button and the clutch, but make
> sure your head was firmly against the headrest or
> else your going to get yourself a headache!

Yea!  The acceleration with a good launch is mind
boogling.  So you get that much wheel spin?  I never
get any spin unless I'm in a corner, or really shift
hard into 2nd gear.  I guess the 215's and coilovers
are hooking up pretty well.

Jim Green
'89 90tq
'89 80q

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