Another Wheel/Tire question..
08-13-2003, 09:06 AM
#1
Team Owner
Thread Starter
Another Wheel/Tire question..
A friend and fellow forum member (lotahp) uses 28 x 12.5 - 15 ET Street tires on 15 x 8 Rally Wheels without the tire rubbing against the frame.
AFAIK - those wheels have 4 inch backspacing...
If I use 15 x 10 rims with 4 7/8 inch backspacing - they shouldn't rub either.
According to my calculations - the tire should actually be 1/8 inch more to the outside (at it's widest point).. Am I correct???
[Modified by GrandSportC3, 9:11 AM 8/13/2003]
AFAIK - those wheels have 4 inch backspacing...
If I use 15 x 10 rims with 4 7/8 inch backspacing - they shouldn't rub either.
According to my calculations - the tire should actually be 1/8 inch more to the outside (at it's widest point).. Am I correct???
[Modified by GrandSportC3, 9:11 AM 8/13/2003]
08-13-2003, 11:45 AM
#3
Melting Slicks
Re: Another Wheel/Tire question.. (GrandSportC3)
Your theory is sound. This would move the center of the tire 1/8" away from the car. But one thing you need to consider is the tire is going to bulge more and be wider on a wider rim. I don't know by how much, but the rim width does affect the overall tire width. That is why tire manufacturers give the rim size when stating the overall tire width.
08-13-2003, 01:29 PM
#4
Team Owner
Thread Starter
Re: Another Wheel/Tire question.. (70 LS1)
Your theory is sound. This would move the center of the tire 1/8" away from the car. But one thing you need to consider is the tire is going to bulge more and be wider on a wider rim. I don't know by how much, but the rim width does affect the overall tire width. That is why tire manufacturers give the rim size when stating the overall tire width.
08-13-2003, 01:57 PM
#5
Melting Slicks
Re: Another Wheel/Tire question.. (GrandSportC3)
Like to see the combo on your car. I run 15x9 Draglites with 5 1/2" BS but with a 1 1/4" adaptor.This leaves a 4 1/4" virtual BS.With this my P295 50's barely stick out past the fender,which is what I wanted,but the 50's look a bit too short.Next set I'm thinking Hoosier Prostreet radials. They measure 28.8" diameter,10.5" tread,and shoud fill up the well perfectly.
[Modified by The Money Pit, 1:58 PM 8/13/2003]
[Modified by The Money Pit, 1:58 PM 8/13/2003]
08-13-2003, 02:13 PM
#6
Team Owner
Thread Starter
Re: Another Wheel/Tire question.. (The Money Pit)
Like to see the combo on your car. I run 15x9 Draglites with 5 1/2" BS but with a 1 1/4" adaptor.This leaves a 4 1/4" virtual BS.With this my P295 50's barely stick out past the fender,which is what I wanted,but the 50's look a bit too short.Next set I'm thinking Hoosier Prostreet radials. They measure 28.8" diameter,10.5" tread,and shoud fill up the well perfectly.
[Modified by The Money Pit, 1:58 PM 8/13/2003]
[Modified by The Money Pit, 1:58 PM 8/13/2003]
08-13-2003, 05:34 PM
#7
Re: Another Wheel/Tire question.. (The Money Pit)
Next set I'm thinking Hoosier Prostreet radials. They measure 28.8" diameter,10.5" tread,and shoud fill up the well perfectly.
I am thinking about getting 29X15.50R-16LT Hoosier Pro Street Radials and want to get an idea of how they fill up the wheel well. I have 16x12 wheels with 5,5" backspacing.
08-13-2003, 08:22 PM
#8
Melting Slicks
Re: Another Wheel/Tire question.. (Twin_Turbo)
I won't be needing tires for a few years,just got all new rubber. In the past I've run P275-60's (28" tall) and liked the look,but they seemed a bit too narrow so I went to the P295 50's. These fit the width I wanted,but are only 26.8" tall. The Hoosier tire should fit both dimensions well,but are quite a bit more money,and at the time I needed tires,I also sprung for new wheels.Next go around will be the Hoosiers.
08-13-2003, 09:09 PM
#9
Team Owner
Thread Starter
Re: Another Wheel/Tire question.. (The Money Pit)
I won't be needing tires for a few years,just got all new rubber. In the past I've run P275-60's (28" tall) and liked the look,but they seemed a bit too narrow so I went to the P295 50's. These fit the width I wanted,but are only 26.8" tall. The Hoosier tire should fit both dimensions well,but are quite a bit more money,and at the time I needed tires,I also sprung for new wheels.Next go around will be the Hoosiers.