ok i have friend and his dad, both who have a set of ET Streets....one set is 26x10.5, the other 26x11.5 one tire in each set is good, the other showing some steel belt....my quetion is would it be ok to run one 11.5 and one 10.5, if both are 26? and if so, for how many passes?

 

AFAIK, ET Streets don't have a steel belt, so I wonder what the hell is showing! It would be dumb to run a car at the track with two different size tires on the same axle. The car will want to go sideways, there will be a lot of strain on the differential, and running a worn out tire is just plain stupid.

Rich Krause

 

Be careful.... Mickey Thompson has a habit of building each width tire in a particular size to a different diameter.

In the case of 26" ET Streets, a 10.5 is 26.1" diameter, an 11.5 is 26.3" diameter. Couple that with the huge width difference: 10.5 = 10.5" section, 8.3" tread; 11.5 = 12.0" section, 10.0" tread and I think you have the recipe for extremely unstable launches. Might not show up on a car with the times you are running. But you will be stressing the posi with different tire diameters on each side. Might be able to compensate with pressures, but it doesn't seem like its worth it.

 

ET streets and most other drag tires for that matter are usually only good for about 2 years max. These sound a lot older than that. I say 2 years because the rubber breaks down and starts to harden and then you have now stickiness to them anymore.

I'd stay away from them also!

Rich, They DO have belts, just laid on a BIAS (hence the name), apposed to radially.

Take care.
Dave

 

Steel belts though? I thought they were nylon.

Rich Krause

 

Yes, Rich, He probably just thought they were steel and I didn't actually see he said steel.

Later,
Dave

 

thanx for the info guys...i know it was a dumbass idea to do, but i actually wanted to know if it we be okay for a few passes b4 i could get my own set, but i went ahead and got my own...hoping for some 1.6 60s and 12.4 passes. thanx everyone