Making a 15 rim work on c5
Thread Starter
Racer
Joined: Aug 2009
Posts: 408
Likes: 0
From: Who Dat Nation!!!!! La
Making a 15 rim work on c5
Do they have a write up or anyone has done it? Any info fellas thanks. Or a web site?
I seen how to do front what about rear and I have flared fenders on back for Moore clearance.
Just quick ? How many inches wide is a 345 35 19 tire cause if that can clear I would like to stuff widest slick I can under neath
I seen how to do front what about rear and I have flared fenders on back for Moore clearance.
Just quick ? How many inches wide is a 345 35 19 tire cause if that can clear I would like to stuff widest slick I can under neath
Last edited by lilicedout24; Dec 19, 2012 at 12:20 PM.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
The problem with smaller wheels (15") is not the width of the tire size--but is the clearance between the inner wheel and the brake rotor---
I use some older C4 wheels ( 16x 9.5) on the rear for the same drag application--It more than doubles the tire sidewall width -- where a stock 18" or 19" wheel/tire combo has a very thin sidewall---These cars are set up more for road racing and not drag racing in stock trim---The large tire sidewall with my 16's will produce a "wrinkle" affect at launch and really hook up---
Now , even the 16's did not fit my car !! I had to have both wheels machined to remove apprx .100 from the center wheel area where it was hitting the brake rotor
Tough to find a machine shop that has a lathe that can chuck up such a large item
15's I'm sure would not clear at all and if you even machined them you would have to remove too much material making them weak and unsafe---
If interested I would sell my already machined 16" wheels---let me know--
I use some older C4 wheels ( 16x 9.5) on the rear for the same drag application--It more than doubles the tire sidewall width -- where a stock 18" or 19" wheel/tire combo has a very thin sidewall---These cars are set up more for road racing and not drag racing in stock trim---The large tire sidewall with my 16's will produce a "wrinkle" affect at launch and really hook up---
Now , even the 16's did not fit my car !! I had to have both wheels machined to remove apprx .100 from the center wheel area where it was hitting the brake rotor
Tough to find a machine shop that has a lathe that can chuck up such a large item
15's I'm sure would not clear at all and if you even machined them you would have to remove too much material making them weak and unsafe---
If interested I would sell my already machined 16" wheels---let me know--
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
15's won't clear the upper ball joint. Period.
To use them you need special spindle mounts. I believe Phadt makes them.
16" typically run into the upper ball joint. The area where on a normal car there would be a zirk fitting. Most folks just pound that part flat with a whammer.
There are a lot of folks running 1.30 60ft times with the 275/40/17 Hoosier Drag radials. On an excellent track prep of course.
BTW...you will get more responses to racing related questions in the performance section. Drag racers be there.
Ron
To use them you need special spindle mounts. I believe Phadt makes them.
16" typically run into the upper ball joint. The area where on a normal car there would be a zirk fitting. Most folks just pound that part flat with a whammer.
There are a lot of folks running 1.30 60ft times with the 275/40/17 Hoosier Drag radials. On an excellent track prep of course.
BTW...you will get more responses to racing related questions in the performance section. Drag racers be there.
Ron
Last edited by RonSSNova; Dec 20, 2012 at 03:27 AM.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
15's won't clear the upper ball joint. Period.
To use them you need special spindle mounts. I believe Phadt makes them.
16" typically run into the upper ball joint. The area where on a normal car there would be a zirk fitting. Most folks just pound that part flat with a whammer.
There are a lot of folks running 1.30 60ft times with the 275/40/17 Hoosier Drag radials. On an excellent track prep of course.
BTW...you will get more responses to racing related questions in the performance section. Drag racers be there.
Ron
To use them you need special spindle mounts. I believe Phadt makes them.
16" typically run into the upper ball joint. The area where on a normal car there would be a zirk fitting. Most folks just pound that part flat with a whammer.
There are a lot of folks running 1.30 60ft times with the 275/40/17 Hoosier Drag radials. On an excellent track prep of course.
BTW...you will get more responses to racing related questions in the performance section. Drag racers be there.
Ron
Instructor
Joined: Oct 2012
Posts: 128
Likes: 0
From: Billings MT
Chances are, the tire's sidewall are to flexible and could be a dangerous driving situation. The suspension is designed for a certain stiffness with the low profile tires. If you use a smaller wheel with a larger sidewall profile, you could roll over the sidewall and a sharp turn. I know from personal experience. Don't do it.
Thread Starter
Racer
Joined: Aug 2009
Posts: 408
Likes: 0
From: Who Dat Nation!!!!! La
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Chances are, the tire's sidewall are to flexible and could be a dangerous driving situation. The suspension is designed for a certain stiffness with the low profile tires. If you use a smaller wheel with a larger sidewall profile, you could roll over the sidewall and a sharp turn. I know from personal experience. Don't do it.
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
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,225
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Our 15" spindle kit will be available with a complete brake kit included very soon if anyone is interested. They are in production now, we have several cars cutting 1.2 60' times with this set up. 
We also stock Weld rims for this set up, and are making lower control arms for bead lock tires, although thats not necessary for most.
We also stock Weld rims for this set up, and are making lower control arms for bead lock tires, although thats not necessary for most.
Thread Starter
Racer
Joined: Aug 2009
Posts: 408
Likes: 0
From: Who Dat Nation!!!!! La
Our 15" spindle kit will be available with a complete brake kit included very soon if anyone is interested. They are in production now, we have several cars cutting 1.2 60' times with this set up.
We also stock Weld rims for this set up, and are making lower control arms for bead lock tires, although thats not necessary for most.
We also stock Weld rims for this set up, and are making lower control arms for bead lock tires, although thats not necessary for most.
