Drag race an automatic
Safety Car
Joined: May 2008
Posts: 4,237
Likes: 11
From: Lacombe Louisiana
As I understand if your computer sees over 1200 rpm and no mph it will begin to take out timing.After many passes I have run my best times launching at a slight increse in rpm (1000) and letting the trans shift itself.Running 12.82 with a stock car with only a Vararam and Corsa catback with a predator tune.(3.15 gears)
Safety Car
Joined: Jun 2004
Posts: 4,986
Likes: 393
From: Stoney Creek Ontario
I do my burnouts in 1st gear,shifting into 2nd, leave the line at 1500 rpm with the gearshift in 3rd and let it shift itself, my trans tune is 1st to 2nd @ 6300 rpm, then 2nd to 3rd @ 6400 rpm, running 11.42 with 3.42, 2800 Vig, and a few other mods...
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Ed
Drifting
Joined: Jul 2003
Posts: 1,257
Likes: 4
From: Granite City Illinois
Launch = off at idle...
My stock long block LS1 does good from idle; lately have been launching from 1200 RPM. Best time is 11.75 @ 116 MPH with the original 2.73 differential. Basic modificataions are Vig 2800 SC and LS6 intake with Callaway Honker and longtube headers. Good luck. 
Last edited by Mark-44; Oct 16, 2010 at 09:40 PM.
Safety Car
Joined: Jun 2004
Posts: 4,986
Likes: 393
From: Stoney Creek Ontario
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Aug 2006
Posts: 2,205
Likes: 2
From: port monmouth nj
what stall, tires,and air pressure
Melting Slicks
Joined: Aug 2006
Posts: 2,205
Likes: 2
From: port monmouth nj
done both doesnt matter. when running in 3rd when you cross line the gear will help you slow down faster as compared to the limp shift into overdrive and a lower gear ratio. hard on tranny dont know.
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Way Too many variables left unanswered by the original poster for an accurate answer from anyone... Track prep and Density altitude also play a factor.. Here in Texas at The Motorplex (Ennis Texas) on a cool dry day at 435 feet elevation my old 99 a4 3.15 geared C5 would do its best if I just floored it. Thats with stock Goodyear Runcraps ,no other mods,bone stock... As I modded the car and changed tires my launch Technique changed. Drag Radials will change the way you launch your car too... In all honesty to Alankb.. you will have to get out to the track yourself and make 4-5 runs down the track(maybe more or maybe less) until you get the perfect launch down.. As you can see you will get a dozen different answers based on a dozen totally different variables/circumstances
Last edited by David426; Oct 19, 2010 at 04:41 AM.
Racer
Joined: Aug 2010
Posts: 494
Likes: 0
From: delmont nj
but i ordered a circle d converter (3200-3400rpm) no headers yet. what are your 60' times? this gives me something to look forward to after headers and converter 
i torque my stocker to maybe 1000rpm just to preload the suspension a lil and then floor it. seems to yield my best times
Last edited by 98tadriver; Oct 19, 2010 at 01:54 PM.
Drifting
Joined: Jul 2003
Posts: 1,257
Likes: 4
From: Granite City Illinois
The 2:73's are okay off the line with either MT or Hoosier DR's. Usually the 60-foot times are 1.73 to 1.75. Track prep was better on my last two runs and a 1.691 60' got the Arctic White down the track in 11.781@ 115.67 mph. The last pass was the best ever with a 1.683 60' 11.752@ 116.04. Good track prep plus good air equals better times.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
I use the same basic technique. I load the drive train but that is about it and have gotten down to 1.667. I run both TC and AH off and I do the burn out and run in 3rd gear.
Last edited by chaase; Oct 20, 2010 at 03:41 PM.
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Racer
Joined: Aug 2010
Posts: 494
Likes: 0
From: delmont nj
The 2:73's are okay off the line with either MT or Hoosier DR's. Usually the 60-foot times are 1.73 to 1.75. Track prep was better on my last two runs and a 1.691 60' got the Arctic White down the track in 11.781@ 115.67 mph. The last pass was the best ever with a 1.683 60' 11.752@ 116.04. Good track prep plus good air equals better times.