Drag radials and lowering springs help

[Honaker10]

Okay so the car has eibach sport lines and just got a killer deal on some race star 17x4.5 and 15x10 rears, and 4.10 gears.the springs are the only suspension mods. Will I be able to fit a 325/50/15 on the rear? I understand it will need the sway bar relo kit also. I've read somewhere that a 285/60/15 will be needed but need some further input please. Thanks!

 

[JLear]

You'll definitely need swaybar relocation brackets to run the 15's on the rear. I can't answer your question regarding the 325's but I'm also considering that size so I will look forward to hearing the responses.

 

[zporta]

With sport lines it might be tight, what is the tire height? I'm sure someone out there has tried it

 

[Honaker10]

With sport lines it might be tight, what is the tire height? I'm sure someone out there has tried it

28x13.50

 

[VNMOUS1]

28x13.50

Huh? Your section width is 13.50? What tires?

I ran M&H 325/50/15 on my car for a while. Ford Racing lowering springs. The tires rubbed and their section width wasn't THAT wide! The tread was 11.1 and section was 12 and change.

You don't need a tire that wide. You just need a great tire and proper suspension setup.

I run a 10.5x28x15 slick now. Still rubs a little, but narrows up quickly.

BJ McCarty
R&D Specialist
VMP Tuning
[email protected]
(321) 206-9369 x 112

 

[stkjock]

325/50/15 MT ET SR - they rub a touch on a launching the car


FRPP "K" Springs

 

[VNMOUS1]

325/50/15 MT ET SR - they rub a touch on a launching the car

My DRs had a red stripe on them from the lip! Kinda retro.

BJ McCarty
R&D Specialist
VMP Tuning
[email protected]
(321) 206-9369 x 112

 

[19COBRA93]

28X13.50-15 Hoosier here. No rubbing at all. They're equivalent to 325's. I didn't have to trim or remove anything, except a sway bar relocate. Wheels are Race Star 15x10's with a 7.25" backspace. I haven't run it at the track yet, but I've put about 200 miles on them on the street without a single issue.

 

[Honaker10]

Huh? Your section width is 13.50? What tires?

I ran M&H 325/50/15 on my car for a while. Ford Racing lowering springs. The tires rubbed and their section width wasn't THAT wide! The tread was 11.1 and section was 12 and change.

You don't need a tire that wide. You just need a great tire and proper suspension setup.

I run a 10.5x28x15 slick now. Still rubs a little, but narrows up quickly.

BJ McCarty
R&D Specialist
VMP Tuning
[email protected]
(321) 206-9369 x 112

According to Mickey thompsons site they are 28x13.50 in the 325/50/15 size et streets.

28X13.50-15 Hoosier here. No rubbing at all. They're equivalent to 325's. I didn't have to trim or remove anything, except a sway bar relocate. Wheels are Race Star 15x10's with a 7.25" backspace. I haven't run it at the track yet, but I've put about 200 miles on them on the street without a single issue.

What springs do you have?

 

[19COBRA93]

What springs do you have?

FRPP L springs. This is how it sits with my 20's (20X10's and 285 fronts/305 rears):

 

[rdsnk46]

I ran a 325/45/17 on a 17x11 with no rubbing.

 

[SNAKEYZ]

I just don't get how some people rub with 325/50/15 & some people dont

 

[sedanman]

BJ do you have L springs? I have 325/40/18 M&H and am debating the L springs. However in the future I want to put 325/50/15 and don't want to switch the springs again.

 

[VNMOUS1]

BJ do you have L springs? I have 325/40/18 M&H and am debating the L springs. However in the future I want to put 325/50/15 and don't want to switch the springs again.

I ran L's and 325/50/15 M&H.

 

[GT500RedStripe]

BJ do you have L springs? I have 325/40/18 M&H and am debating the L springs. However in the future I want to put 325/50/15 and don't want to switch the springs again.

Maybe their backspacing is not the same. I also had FRPP lowering springs and M/H 325/50/15 and M/T 28x10.5x15 and no issues. I even cut my jounce bumpers in half.

 

[VNMOUS1]

Section width is different from tire to tire