A4 Launch Info Needed

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Sep 26, 2005 | 04:28 PM

MarineVette5

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A4 Launch Info Needed

Looking for some help from experienced A4 folks. What launch technique, rpm, etc... do you use? Thanks.

Sep 26, 2005 | 04:59 PM

Dirty Howie

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Joined: May 2004

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From: SoCal

Quote:

Originally Posted by MarineVette5

Looking for some help from experienced A4 folks. What launch technique, rpm, etc... do you use? Thanks.

I'm no expert ...been to the track 2 times. I have gone thru many mods...see sig below.

But I can tell you your launch will depend on several factors: tires/gears/HP/TC/traditions.

Sep 26, 2005 | 05:14 PM

MarineVette5

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Joined: Aug 2005

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Quote:

Originally Posted by Dirty Howie

I'm no expert ...been to the track 2 times. I have gone thru many mods...see sig below.

But I can tell you your launch will depend on several factors: tires/gears/HP/TC/traditions.

I have a 02 Vert A4 w/ 3.15 gears, LT headers, high flow cats, X-pipe, Borla Stingers, Hurricane Intake, 160* t-stat and the stock run flats. Since installing the mods, my 1/8 mile ET has dropped about 3-4 10ths w/ about a 2.5-3 mph speed increase (from 8.7 @ 83.08 to 8.4 @ 85.58mph). However my 60' times have remained almost identical to the pre-mod numbers and I am spinning almost all the way through 1st gear. I know the run flats are part of the problem but just wanted to see if I was launching at too high or too low RPM or if there is something else I can do to hook up and lower the 60' time. Thanks.

Sep 26, 2005 | 05:23 PM

shurite44

Le Mans Master

Joined: Sep 2004

Posts: 7,027

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From: Shiloh Ohio

I launched my A4 315 on runflats by simply stomping the gas from idle, no power break. I also got the runflats very hot during the burnout. My best 60' was a 1.87. I did not spin at all.

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