Slick?

Reply Subscribe

Thread Tools

Search this Thread

Mar 13, 2011 | 09:16 PM

coolhand5599

Thread Starter

Pro

Joined: Jul 2010

Posts: 722

Likes: 2

From: Odessa FL

Slick?

I put Hoosier 28 10 17 slicks on my C6 with around 600hp on an A6. I left the stock front wheels on. We were at an 1/8 mile I ran 6.9 with the *** end moving around very bad. I would of never made it to a 1/4 mile. And I did not pick up anything from the Nitto NTO5Rs. I had the tire pressure from 16lbs down to 10lbs. Nothing changed. What would cause the car to move around so bad? If it matters I have the F55 and I had it in sport

Mar 13, 2011 | 10:03 PM

C5 Pete

AMP Racing

Joined: Aug 2006

Posts: 10,753

Likes: 587

From: Washington TWP NJ

2023 C5 of the Year Finalist - Modified

2017 C5 of Year Finalist

St. Jude Donor '09-'10-'11-'12

I'm guessing you had full size fronts on? If you're going to run Bias plys in the back, you really need skinnys up front.

Mar 13, 2011 | 10:08 PM

coolhand5599

Thread Starter

Pro

Joined: Jul 2010

Posts: 722

Likes: 2

From: Odessa FL

Quote:

Originally Posted by Capthuff

I'm guessing you had full size fronts on? If you're going to run Bias plys in the back, you really need skinnys up front.

Really, why is that?

Mar 13, 2011 | 10:13 PM

C5 Pete

AMP Racing

Joined: Aug 2006

Posts: 10,753

Likes: 587

From: Washington TWP NJ

2023 C5 of the Year Finalist - Modified

2017 C5 of Year Finalist

St. Jude Donor '09-'10-'11-'12

even when driving down the street, any irregularities in the road will have a tendancy to occasionally make the car feel like it wants to dart from side to side a bit.

When that happens on the track and you have Bias out back, the darting gets exaggerated though the stiffness of the chassis and because the softness of the sidewall on the bias there is nothing to keep it from swaying back and forth. it will get worse with each sway until it is uncontrollable. I've seen guys go from the left lane to the right wall because of it.

Mar 13, 2011 | 10:32 PM

coolhand5599

Thread Starter

Pro

Joined: Jul 2010

Posts: 722

Likes: 2

From: Odessa FL

Would front skinnys take care of it totally or would it be good to add tubes as well?

Mar 13, 2011 | 10:35 PM

C5 Pete

AMP Racing

Joined: Aug 2006

Posts: 10,753

Likes: 587

From: Washington TWP NJ

2023 C5 of the Year Finalist - Modified

2017 C5 of Year Finalist

St. Jude Donor '09-'10-'11-'12

Skinnys should take care of it. Radial skinnys are fine, but they are heavier than the bias skinnys.

A lot of cars run Bias out back and radial skinny up front. Works good, lasts a long time...

Best of success with your goals!

Mar 13, 2011 | 11:06 PM

Fuzzy Dice

Race Director

Joined: Oct 2001

Posts: 19,653

Likes: 428

From: Melbourne Florida

Cruise-In IV Veteran

I am not a fan of bias on back and radial on front...neither is any tire manufacturer..not stable, particularly the faster you go...

I don't know what weight your car is but I run Hoosier slicks out back and use 14 lbs. in them...my car is 3700 lbs. with me in it....remember, the rule of thumb is to run as much pressure as you can and still hook...

Are those Nitto's radial slicks or bias ply?...if they are radial slicks you need to try 25 lbs. and work from there...if they are bias, get some bias skinny's up front and then 16 lbs. in the slicks should be a good starting point...

Mar 14, 2011 | 08:05 AM

CYA-Vett

Melting Slicks

Joined: Nov 2002

Posts: 3,398

Likes: 2

From: Allentown PA

I used to run my car with bias in rear and radials up front, yes its all over the place. You will get used to it. The first few passses do feel quite odd though...