Next week I intend to buy a pair of 26x10.5x15 ET Streets. I've some idea as to how to use them, but would like some expert advice on how to get the most out of them.

The car is a 3600lb 1980 Z28 that runs 13.3's@107 on street tires with a 2.1 60'. It has a built TH350 with a 2500 stall, and 3.42 gears. The suspension is all newer - stock spring rates, 'nothing special' shocks.

 

10.5 ET streets dont hook worth a pile of crap

i had them i know .. u should just buy my stuff that i have for sale

 

Why the 10.5? You will do better with a wider tire like the 26x11.5. The tread is ~1.5" wider than on the 10.5.

Rich Krause

 

There are guys in the NMRA running low 8's on a 10.6 inch tire- If an 11.5 is too big, I wouldn't worry about running 10's.

 

Why 10.5? I already have rims that match the fronts for them. And, I hadn't considered that 11.5's might fit.

 

It is gonna take a few runs & Burnouts to get them to hook up good. Then hang on!!

 

Steve: AFAIK, the NMRA guys are using a tire with a 10" tread, like the 11.5" ET Street which has a 10" tread, in spite of the nomenclature. They also will work fine on an 8" rim. In fact, MT specs say they are for an 8-10" rim. The footprint will be a little wider with a wider rim though. No hacking of the body necessary, except for a little trimming of the bumper cover if you want to be absolutely sure of no contact when the tire "grows" at high speed.

Rich Krause

 

... at 107mph I don't think I have to worry about tire growth

 

I know- I was just saying that if 11.5's didnt fit- that 10's should live too.

BTW- where were ya saturday? I stopped out and was hoping to see you. Also- did you cut your bumper cover? I'd love to see it. I remember Vince had his done on the teal car, but I forgot what it looked like, and where he cut.

Later!

 

Hey Steve" sorry I wasn't there. I went to the track with my buddy Joe. He ran a 9.95 without 4th gear! Dang, I wish my car weighed 3,300lbs like his.

The bumper cover is just trimmed on the inside edge. You are welcome to look anytine.

Rich Krause

 

Depending on your rims, and the offset, the 11.5's will fit. I ran 26 x 11.5 x 15 for a couple of years on my 15 x 10 rims with a 6 1/2" offset. They should also work on a 7 1/2" offset as I am now running 28 x 12.5 x 15's and they fit with some minor trimming of the outside lower fenders.

You won't have enough growth under 110 to need to worry about rubbing at the big end.

The 11.5 is a siedwall measurement as DOT tires are measured by the sidewall.

 

mickey thompson 26x11.50-16's Are acually only 10 inches wide (why???)and will fit. I know because I sell tires (4 years). I would for sure use those.

 

I have the 26x11.5"x15 et's. they hook awesome. I have run 18psi in them, w/no burnout and pulled a 1.74 sixty on the only pass I got to make on them. the reason for no burnout is, I usually pull around the wet box, then back up in front of it, not getting the tires wet. so when I did that, the car just launched forward while I was standing on the brakes. this scared the heck out of me cause I wasnt expecting it. so, here's my tip. get the tires wet, then do burnout. I didnt have to break my tires in at all. but then again I drove on them to the track 50 mi.s.

Id expect your car to run 1.8 sixty's and maybe even break into the 12's. good luck.

chris

 

Their literature says they require little or no burnout which is great since they'll probably last longer than the other types of slicks that might require a John Force burnout . I can't wait to get these bad boys on!