Stiffwall or Regular MT ET Drag?

[jeostang]

I need to make a decision between the stiff wall or the regular ET Drag. I'm currently in a manual, but planning to move to a auto. What tire would be best for a 650rwhp + car?

Thanks

[white07]

Im curious of this as well. My last track trip my bias plys drifted alot on me

[racevert]

Well flexible wrinklewall sidewalls will always give a better traction footprint as they allow the tire to spread out.

[jeostang]

Doesn't too much wrinkle cause the tire to bottom out and start to cup?

[fin1]

Originally Posted by jeostang

Doesn't too much wrinkle cause the tire to bottom out and start to cup?

On a radial tire, if the pressure is too low it will cup due to a stiffer sidewall & tread. A bias tires can run a lower tire pressure before this becomes an issue. Both tires will wrinkle, but the bias tire will do it much more than the radial since the tire pressure is generally higher and the sidewall flexes less.

[don_w]

I've always used the regular ET Drags, and have been very happy with them. As long as I ran at least 11psi in them, they were very stable. At 10psi, they would wiggle a little, but never to the point of being unstable. At the moment, I'm running a stiffer wall Goodyear slick. Even so, they still can wrinkle. Check out the video below from a month ago (at 11psi). But I haven't made a lot of passes on the Goodyears, so the jury is still out on them.

[jerrytubbs1]

I started running the stiff sidewall MT slicks.They seem to hook better on our track and even got me into the 1.50's at our local track in my 07 gt500.Never could cut low 1.50's on the reguler mt slicks.Then put the stiff ones on and always cut 1.50's.

Best I could do with the regular mt slicks was a 1.61. Less wrinkle will give a better 60' as long as the track hooks.But I've wrinkled that crap out of the stiffs and still cut my 1.50's....

At that time,I had about 580 to the wheels and about 600 tq

[jeostang]

I think I'm going to give the stiffs a try. I see quite a few guys running them.

Hey Don, What size are those Goodyears? Do they rub at all?

[ChevyKiller]

Originally Posted by jerrytubbs1

I started running the stiff sidewall MT slicks.They seem to hook better on our track and even got me into the 1.50's at our local track in my 07 gt500.Never could cut low 1.50's on the reguler mt slicks.Then put the stiff ones on and always cut 1.50's.

Best I could do with the regular mt slicks was a 1.61. Less wrinkle will give a better 60' as long as the track hooks.But I've wrinkled that crap out of the stiffs and still cut my 1.50's....

At that time,I had about 580 to the wheels and about 600 tq

I agree. I think for the HP level you are looking for and the weight of your car - a stiff sidewall is what you want. If you call MT - they will tell you the same thing.

[jeostang]

Thanks for the advice,

I just ordered two new MT 28x10.5-15s for 350 shipped.
Now I got to fine some fronts.

[Dex]

Originally Posted by jeostang

Thanks for the advice,

I just ordered two new MT 28x10.5-15s for 350 shipped.
Now I got to fine some fronts.

Where from? Didnt MT have these on clearance?

[don_w]

Originally Posted by jeostang

Hey Don, What size are those Goodyears? Do they rub at all?

These are 29x11.0-15, and they do not rub anywhere. I was running 28x11.50-15 M/Ts.

[jeostang]

http://motors.shop.ebay.com/__?_from...G+TIRE&_sacat=

Then I got 30 buck cash back.

[ChevyKiller]

Originally Posted by don_w

These are 29x11.0-15, and they do not rub anywhere. I was running 28x11.50-15 M/Ts.

I run the 29x12-15 goodyears and no rubbing at all even lifting the front end ( I am NOT lowered)

However, I just saw on Saturday an S197 with the 30x12-15 destroy his bumper on the launch...

I would say 29" is as big as you can go.

[PLstang]

I have been running the 28/10.5/15 stiff for a little while. They seem to be better then the regular ones. My car whips the sidewalls so hard the stiff ones just seem to stand up better. Been running them at 10.5psi.

[Dex]

hmmmm, maybe stiff is the way to go... I'll be running 700rwhp at the track

[ChevyKiller]

Originally Posted by PLstang

I have been running the 28/10.5/15 stiff for a little while. They seem to be better then the regular ones. My car whips the sidewalls so hard the stiff ones just seem to stand up better. Been running them at 10.5psi.

Damn 10.5 psi? Do you notice any excessive wadding? Do you have rim screws on them? Perhaps the stiff can deal with it easily. The goodyears wad like mad and went to tire shake at 11 psi.

[PLstang]

Originally Posted by ChevyKiller

Damn 10.5 psi? Do you notice any excessive wadding? Do you have rim screws on them? Perhaps the stiff can deal with it easily. The goodyears wad like mad and went to tire shake at 11 psi.

They been rim screwed for a Looooonnnnng time now! Thinking about some bead locks.

Don't get me wrong, the tires are good for maybe 8 to 10 passes. After that the side walls are DONE!

[ChevyKiller]

Originally Posted by PLstang

They been rim screwed for a Looooonnnnng time now! Thinking about some bead locks.

Don't get me wrong, the tires are good for maybe 8 to 10 passes. After that the side walls are DONE!

Okay...lol After the rim screws (inside and out) I didn't go into tire shake and it held up at 11.5 psi but I went to 14.5 cause it wadded like a mother. It hooked the best with low psi though, but as you said, the life dropped dramatically. I am using them at 14.5 now.

[PLstang]

My car eats tires.....

I think I spend more on tires then I do gas or Nitrous.....