Is This Dangerous?
Thread Starter
Pro
Joined: Jul 2005
Posts: 585
Likes: 0
From: Jacksonville FL
Is This Dangerous?
I'm going to Gainsville Sta. nite. My tire setup is: 17" M/T ET Streets bias and 275-40-17 radials up front.
I've been told on this forum that the car will get loose. Is that loose as in dangerous? Trap speed should be around 115mph.
I've been told on this forum that the car will get loose. Is that loose as in dangerous? Trap speed should be around 115mph.
Team Owner
Joined: Feb 2000
Posts: 32,545
Likes: 2
From: Lithia FL
Cruise-In II & IV Veteran
CI VI Drag Champ!
It can cause to compensate and maybe over compensate and this where the danger comes in. I did it at 112 and didn't really like it but that is just me.
Instructor
Joined: Feb 2006
Posts: 214
Likes: 10
From: Leroy Ohio
I run that way. The looseness seemed to depend on track conditions or I got used to it. The only other changes I made was to disconnect the front sway bar and had more gas in the tanks, but it didn't seem as bad the last time I went racing. Trap speeds were 108 to 111. I run 245s up front.
Le Mans Master
Joined: Jun 2003
Posts: 9,251
Likes: 217
From: 2007 Nat'l Corvette Challenge 11.50 index Champ. New Jersey
Like Jason said, it depends on the rear psi. If you go below 15, it will feel more "floaty". Kind of like when you drive over a bridge with those metal grooves all across the road.
As long as you don't panic & make a sudden jerk of the wheel, you'll be fine.
I raced like that all the time for 3 years now. I ran 18psi though & hit 120 mph like that. It was NEVER an issue. I felt it more though when I once tried like 14 psi in the rears.
Ron
As long as you don't panic & make a sudden jerk of the wheel, you'll be fine.
I raced like that all the time for 3 years now. I ran 18psi though & hit 120 mph like that. It was NEVER an issue. I felt it more though when I once tried like 14 psi in the rears.
Ron
Melting Slicks
Joined: Dec 2001
Posts: 2,025
Likes: 1
From: Billings MT
Not sure about your car but I have run a 26x9" Hoosier bias slick with a street radial front for several seasons without any problems.
Yes, at the top end it feels loose, but what C3 doesn't! LOL
I usually let out of it around 120mph, if you try to stop too fast you can really feel the difference.
The car wants to go straight, if it is going to wander a little don't fight it.
Have fun!
Yes, at the top end it feels loose, but what C3 doesn't! LOL
I usually let out of it around 120mph, if you try to stop too fast you can really feel the difference.
The car wants to go straight, if it is going to wander a little don't fight it.
Have fun!
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Thread Starter
Pro
Joined: Jul 2005
Posts: 585
Likes: 0
From: Jacksonville FL
Thanks, I'm a relieved to hear from you guys. I run high speed track days, so I should be able to think cool, at speed. Hope to join you guys in the 11 second club. Forecast is for temps in the 80's.... dang. I'll post my times monday.
Thanks,
Mark
Thanks,
Mark