anyone running mickey thompson s/r tires on a superformance?

[jeffrey jackson]

checking to see if the s/r tire are good for street use? they have a 26/10/15 front and 26/12/15 rear which shoud fit superformance cobra.

[RedBarchetta]

James #2117 is running them. So is Jason ("D-CEL" here). You need to log onto SCOF and James will answer the thread there (I don't recall him posting much here). BTW, James runs 11.40's on 275/60-15 MT Street Radials running a Roush 427w. He says the MTs are actually stickier on the street than on the track, as his 60' times are not that great and he still loses some traction on the 1-2 and 2-3 shifts. He's convinced that there is a 10.99 in there somewhere with the optimal combination and he's now dropped to a 275/50-15 to gain more gear back.

Jason runs MTs on all four corners and swears by them. I'm 99% convinced myself and am looking at them very hard (especially the 325/50-15 rear which he is running). Look up D-CEL here and you'll see the pics.

-Dean #747

P.S. Here's a mod that you can do that will gain you 1/2" more outboard clearance. Have the rear wheel hubs (the portion that mates to the brake rotors) machined 1/4" on the diameter so that they are slightly smaller. Then shorten your wheel studs by the same amount. You can then remove the 1/2" spacer that the knock-off wheel adapter mates to. You need to machine the wheel hubs so that, upon removing that 1/2" spacer ring, the calipers will clear the hubs. I did this and it will help me place considerably more tire underneath (there is lots of room inboard).

[Scufty]

I run MT and you can see pics on my gallery...They are VERY sticky on the road..Havent tried them on the track yet

[RedBarchetta]

Scufty, how do you like the BIAS PLY MTs (that you're running) over the drag radials that I brought up? A different tire all together, but you are right in that once they heat up they do get sticky.

[Burnd]

I run the M/T Sportsman S/R on the front and the M/T ET Street on the rear. It's a good combination.

Red:

I raced all summer. If your friend is doing burnouts prior to launch with ET's, he's going to ruin his 60 foots. They are a radial; the walls will not ripple and they get slicker with a burnout. Tell him to just clean them off and circumvent the water box.

[RedBarchetta]

Originally Posted by Burnd

Red:

Tell him to just clean them off and circumvent the water box.

Burnd, actually that is EXACTLY what he has been doing. His discussions with me indicate that the car hooks up crazy on the street, but at the track (LACR - not the best drag strip but the only real 1/4 left in So Cal that gets regular use) he still breaks traction on the up shifts and can't nail a really stellar 60' time. Perhaps the only thing he hasn't quite done yet is to gather the courage up and perform a four grand launch, strictly out of fear that the half-shafts will burst. He's a serious drag racer and knows his stuff.

-Dean

P.S. I checked out your gallery but didn't see any recent pics with the tire combo you mentioned. Could you send me some via e-mail or post to your gallery and send me a PM that they are there? Thanks!

[Burnd]

Red:

I tried to attach a picture to my post and it didn't hook. I'll send you a PM and send me back your email and I'll attach some pictures for you.

bernie

[Burnd]

Red:

My first reaction was suspension but if it hooks on the street; probably track. I got 1.5's at Maple Grove; 1.7's at Lebanon Speedway and consistent low 1.6's at Sanair Speedway. If they don't clean & spray the launch ramp every hour it will make a difference. I still break loose on the upshifts too. He may not squat hard enough if he can't dial in his shocks. I haven't run slicks yet cause i'm too cheap too tear out my 28 spline axles. I bought a set of M&H's but I was saving them until I was in a mood too torque the axles out of the rear on launch. He has a better chance of decent 60's by launching off idle than coming out hard. He'll just side slip at 4 grand.

I got to figure out how to get this picture attached for Jeffery. I've done it before but as usual; 20 years ago is clear as a bell, it's remembering what I did this morning that's a problem.

Bernie

[Burnd]

All that money wasted on college to try an attach pictures for Jeffery. Not sure if this will work but I had to really reduce the picture size but they attached "somewhere".

Jeff: Got it done; go to my gallery and look at these thumbnails and you will be able to enlarge them enough to see the wheels. I had too reduce these too far.

Bernie

[RedBarchetta]

Bernie, nice conversing with you offline. Those Sportsman SRs on the front really compliment the stickier drag radials in the back. What kind of motor are you running to turn 11-ohs?

-Dean

[Burnd]

Originally Posted by RedBarchetta

Bernie, nice conversing with you offline. Those Sportsman SRs on the front really compliment the stickier drag radials in the back. What kind of motor are you running to turn 11-ohs?
-Dean

Standard 1967 427 stroked to 468; strong bottom end (Lunatti's); 10:5 to 1, cereramics inside and out; lot of cam, .268 @ .050 and .665 lift.; Stage ll KC heads with two 715 holleys on a BT. Can't spin it like a Winston Cup but I don't need too. It winds up quick for a BB, and I shift it early at 6200. It flattens out between 67 and 7000 and there's nothing there by then. No need to beat it either. I never touch the limiter.

Bernie

[cobra crazee]

running the drag radials on the street, do you guys have problems with rock dings on the body of the car?

[JCoop]

Whe I had Nitto drag radials, they were very sticky but would pick up a lot of stuff on dirty asphalt. If you pick up a large enough stone at a high enough speed, they would make "star" cracks, especially on the front fenders. They can't be rubbed out because they start from the bottom of the paint. To protect the fenders, I lined the undersides with Dynamat, then sprayed the seams with plenty of rubberized undercoat.

[Burnd]

Originally Posted by cobra crazee

running the drag radials on the street, do you guys have problems with rock dings on the body of the car?

Ray's comments about lining the wheel wells is an excellent suggestion. The spray rubber compound works good and is easy to do. The tires actually feel "tacky to the touch" whether they're hot or cold. And they pick up everything. In my case the wheel wells are not an issue. First, I don't run stickys on the front, only a radial. Plus, the fiber glass body of a WC Cobra is so thick it feels like 5/8 plywood. Tha't one of the two reason's I'm a 1000lbs heavier than most of you guys.

That being said; you give up something to get something. I want the traction on the street and the tires give it too me. The car is useless and dangerous if I can't get the HP to the ground. Before I switched to the drag radials, it got to a point where I was afraid to put my foot in it. Three years ago I broke it loose on Route 80 in 3 gear at 65MPH with the BFG TA's on it when I was passing another car. Scary $hit. It was a wakeup call. If I'm racing or I'm going to be smoking the tires, I run duct tape on the inside fender well lip, but not for chips. Saves cleaning the sticky compound off the lips after smoking them. I peel it off when done.

[G.R.]

Blue or green Painters tape works as well Burnd and leaves less sticky residue. Duct tape can actually peel paint off if left on for just a short time, like a couple of days.

[cobra crazee]

thanks guys, I guess im going to have to sell the 2 front drag radials
they are 275 17 40Z NITTO brand new stickers still on them mounted on the rims, but never ran. Let me know if anyone interested.

[Burnd]

Originally Posted by G.R.

Blue or green Painters tape works as well Burnd and leaves less sticky residue. Duct tape can actually peel paint off if left on for just a short time, like a couple of days.

GR:

Your right and I should have followed through with a little more detail but was in a hurry. On he inside of the wheel well lips, I wasn't really worried about paint cause it gets beat up anyway. However, one of the other guys at the track put me on to Gaffer's Tape. It's about 8 bucks a roll, comes in assorted colors and will not damage the paint whatsoever. It's actually used in the theatricle industry for stage applications. It works really well in our applications too, with no residual glue. I can wrap from the inside lip to the outside of the quarter panel without worrying about paint damage, not that i worry that much anyway. I gave up micro managing paint chips on my car when I realized on I wanted to have fun too, if you know what I mean. Thanks for the comments.

Bernie

[Larry N Johnson]

There was a picture of a blue SPF with M/T Sportsman S/R tires front and rear mounted. Anyone help me find that image?