[Biturbos4] trap speed w/ chip

California Fields cfields72 at hotmail.com
Mon Jan 5 14:19:16 EST 2004


Stage I (chip, no exhaust) on 93 octane with a decent launch should yield:

If you suck, 2.2+ sec 60-foot time with 14.0+ 1/4mile @sub 100mph.
If you are mediocre, 2.0 sec 60-foot and high 13s 1/4mile @ 100mph.
If you kick ass, 1.8 sec 60-foot and mid 13s 1/4mile @ 100-104mph.

I "sucked" on my first attempt with Stage II (chip+exhaust) because I bogged 
the launch...13.9 at 100. Most people mess up the launch...it's the hardest 
thing to get right in our cars and the part that affects the time the most. 
Note, this is based on my limited experience at the track and from a lot of 
newsgroup reading. Notice that there's really small differences in time/mph 
between a good and poor driver...but it's these small differences that win 
races.

See this great website for a list of current S4 1/4milers and their times: 
www.s4biturbo.com/timeslips.cgi

Good luck, Cal.

P.S. You don't need to dump the clutch to get a good launch.


>From: David Lau <toomanycars at mac.com>
>To: Brad R <mrtwr at early.com>
>CC: S4 <biturbos4 at audifans.com>
>Subject: Re: [Biturbos4] trap speed w/ chip
>Date: Sun, 4 Jan 2004 23:25:27 -0500
>
>Stock, I pulled a 14.4 with a good launch.
>
>With the APR chip, 93 octane program, lousy launch (mediocre reaction, 
>massive clutch slippage), the Red Wagon pulled a 13.9. The announcer came 
>on the PA and said "that guy just pulled a 13.9 in the grocery getter". ;-)
>
>Next run I got a good launch (dumped the clutch faster) good reaction time, 
>then the throttle cut out. Forgot to turn off the @#$%^&* ESP.  :-(
>
>David
>
>On Jan 4, 2004, at 9:40 PM, Brad R wrote:
>
>>Hey, guys.  Just wondering something here.  From what I have read before,
>>stock manual S4's will run a 1/4 mile in the low 14 seconds at about 98 
>>mph.
>>If I were to slap a chip in and make no other modifications to a stock 
>>car,
>>what kind of trap speed and e.t. could I expect my car to run?
>>
>>Thanks,
>>Brad
>>Allentown, PA
>>2000 S4 - 6 speed
>>
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