No traction
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Joined: Apr 2011
Posts: 67
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From: REDMOND OREGON
No traction
I have an 85 vette with 500 hp 460 torque 383 stroker. beefed up 700r4 and 2400 stall speed. yesterday for first time took it out on deserted hwy for run. rolled out to 2000 rpm and nailed it, then shifting to second the car made a radical left turn, got out of gas went back to right then left again til finally under control. running bfg hp tires. my thoughts, rear wing for downforce ,street radil drag tires, letting tranny shift on its own. would appreciate any SERIOUS ideas 
Drifting
Joined: May 2012
Posts: 1,336
Likes: 15
From: Mechanicsburg PA
Central PA Events Coordinator
St. Jude Donor '12-'13
I have an 85 vette with 500 hp 460 torque 383 stroker. beefed up 700r4 and 2400 stall speed. yesterday for first time took it out on deserted hwy for run. rolled out to 2000 rpm and nailed it, then shifting to second the car made a radical left turn, got out of gas went back to right then left again til finally under control. running bfg hp tires. my thoughts, rear wing for downforce ,street radil drag tires, letting tranny shift on its own. would appreciate any SERIOUS ideas
You're kidding... right? Any passenger car with 500 hp without traction control WILL BREAK loose if you punch it... pushing it beyond your own driving abilities. (Even my stock 93/300 hp will break loose.) Did you beef up the original suspension and brakes, too?
You need to learn to handle the beast... and its personalities and quirks. You found its overwhelming HP (strengths) and the tires (weakness).
A recommendation ... driver's school - need to refamiliarize yourself with the improved horsepower.
Also AutoX and roadracing subforums may supply a better insight, too.
http://forums.corvetteforum.com/auto...roadracing-23/
Last edited by Bandit's C4; Dec 3, 2012 at 02:47 PM.
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Just buy a real set of tires.
The Mickey Thompson Drag Radial will hook the car up and drive fine on the street.
I run the MT 315/35R17 on my 92 and get about 8K street miles AND a season of racing (50+ passes) per set out of them.
Will
The Mickey Thompson Drag Radial will hook the car up and drive fine on the street.
I run the MT 315/35R17 on my 92 and get about 8K street miles AND a season of racing (50+ passes) per set out of them.
Will
Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
A road or highway will have a crown on it. If you lose traction, the rear goes right and the car goes left. Try it at a strip with sticky tires. A rear wing won't help until you are 100mph+, not in 1st gear.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
On mine when I had the 350 hotcam motor making 362 rwhp, when shifting from first to second, it would fishtail very easy. With ET Streets at the track, a short burnout, and even standing on the brake to bring rpm's up, I couldnt break it loose on launch.
As rklessdriver said, get a good set of drag radials and it will be a world of difference.
BTW what are the mods you have done to get that kind of power?
As rklessdriver said, get a good set of drag radials and it will be a world of difference.
BTW what are the mods you have done to get that kind of power?
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Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
On the street , my 410 rwhp 383 A4 will kick the rear on the 1-2 shift @ WOT ( have a very firm shift kit ) on ET streets.Just need to be prepared for it
But doesn't do it at the strip
Pro
Joined: Apr 1999
Posts: 533
Likes: 6
From: Poinciana Florida
Find your self a set of beam plates. That will/should cure the kick out to the right when shifting from first to second. At 400 rwhp I usually got traction toward the end of second gear. At 600 rwhp I stopped going to the strip. Don't expect much from '"STICKY TIRES". And avoid advise from those making less than 500rwhp. They simply don't understand because they have never been there. Enjoy and stay alive!
Last edited by RVY; Dec 13, 2012 at 07:23 AM. Reason: CLARIFICATION
