For the drag racers mostly. I'm planning on some Hoosier drag radials in 15". Issue is, the only one that has an appropriate OD for our cars gearing, has a very wide section width. I'm going to have enough worries with fitment I think, but my bigger worry is the effect of the tire growing at high speed.

Anyone that can comment as to how this will affect my car in the 1/4? i'm half happy about it, since i won't have to worry about running out of 4th gear as fast, but with a section width that's 1" wider than treadwidth, i'm expecting a lot of growth (on a 15" tire). But, it is a radial, and therefore stiffer than an bias ply...

Tough to find info on 15" DR's, as 99% of people seem to make the jump to slicks when they go to 15's.

tia

 

tire growth used to be an issue with older bias ply tires, but the advent of belts and steel belts prevents most of the growht at high rotational speeds.

Radials do not show much growht due to the circumferential belt.

Top fuel drag tires do but i do not believe they are belted like a radial. Plus the sidewalls are very soft and allow more flex.

Drag radial do ahve a very soft sidewall so you should not be using them for spirited cornering

 

haha, I have 18" A6's for the corners. I'm definitely talking drag racing here, with 15's.

Thanks though. Definitely renforcing my thought that a radial will be much less succeptable than slicks.

I'm hoping somene has some experience in the matter. If I buy a 26" radial, and use that for my math on top speed, I'm wondering how accurate it is, or if the tire will grow significantly. The radial size I am looking at has a very wide section width.