Problem with Mickey Thompson ET Streets

[brasscoe]

Just put on a set of Problem with Mickey Thompson ET Street Drag Radial II 305/35/18s have about 500 miles on them and they look like this:


Anyone ever experience this? The contact patch is all rough and they don't seem to hook well at all now. Car is an 04 Whipple 3.4 E85 monster, putting down a little under 800rwhp. Thanks.

 

[Oiljunkie]

i almost want to say that looks like to high air pressure coupled with poor alignment? Do a burn out and see if it will clear them up

 

[Zemedici]

What psi are you running them at? Also not many tires will hook on the street at 800rwhp

 

[me32]

Too much pressure
Also the tires wont hook unless you warm them up.
This your 1st time with DR?

 

[Bigc6428]

Mine do the same. It is related to tire spin. Drive conservative (no wheel spin!) for a bit and they will clear right up. A couple short burn outs or even when the tires haze for a bit and it will return. I run mine a 22psi

 

[ctgreddy]

Most sticky tires look like that when they come off the dyno, wasn't recently on one was it?

 

[Dixarect]

Mine look the same, any wheel spin on any DR will look like that.

 

[Alejandro5.0]

Mine look like that as well after a good burnout

 

[evil04svtcobra]

Welcome to having a high hp car. I went through a set of Mickey Thompson street ets in a week once! Dyno session and some fun racing on the street.

 

[LowNSlowNeon]

I feel like when the tires start doing that they hook better. You're on a small radial with 800hp, it won't hook on the street

 

[1Fast-Turbo-Cou]

I use to run that same tire, same size. I now run the M&H 325/45 R17 which is a million times better all around!

 

[Yulla]

What psi are you running?

 

[1Fast-Turbo-Cou]

What psi are you running?

28 psi normal driving and 18-22 psi for racing.

 

[Yulla]

Also what gears do you have?

Do you have trouble hooking even at 18-22 psi? 28 seems too high, but at your power level you might benefit from a taller tire with more sidewall. I guess keep lowering the psi and warming them up and see if they hook any better.

 

[brasscoe]

Thanks for all the replies. Here is the car in question if you want all the details: http://www.svtperformance.com/forums/showthread.php?954661-**FS-04-Black-quot-CornFed-quot-Vert-800HP-Whipple-BOSS I checked today and it's at 31PSI cold. I lowered it to 28 and have a long trip tomorrow, so I'll try driving with no shenanigans and see if that clears them up. Car has 3.73 gears. First time running Mickeys, but I've gone through sets of NT05s on my other cars and never noticed them look this way. I have 18x10 Saleen repos on it now, I wondered if the NT05 305/45/18's would fit. I would love the extra side wall but was told it wouldn't fit. Anyone ever run that combo? I ran R888s, they lasted about 12k miles but never really hooked until 4th gear.

 

[1Fast-Turbo-Cou]

Also what gears do you have?

Do you have trouble hooking even at 18-22 psi? 28 seems too high, but at your power level you might benefit from a taller tire with more sidewall. I guess keep lowering the psi and warming them up and see if they hook any better.

I'm running 4:10 gears, 4R70W auto, PTC 4600 stall.

This was on my side street which is rough and terrible, it shouldn't even be considered a street. I don't know why we all pay so much in taxes! The skinny tracks were not mine. As you can see traction is still pretty good even with terrible track conditions. If/when it's spinning it's still accelerating rapidly and drives straight as an arrow. This was also with 28 psi as I was driving it around all day long.

http://youtu.be/Q_gRDnLJ7kw

Here's another one, roll from second.

http://youtu.be/dTZXKDxA-0A

And here's one more, it spun a little in first, I pedaled it and then laid back in again. It was pretty cold out that night in Kentucky.

http://youtu.be/eAsnpPMzBHw

 

[Tractionless1]

Could be worse local pro level motorcycle road racers get 7 laps (1 race) out of a $450-$600 set of tires!

 

[brasscoe]

I use to run that same tire, same size. I now run the M&H 325/45 R17 which is a million times better all around!

Thanks, what wheels are those? I may have to step down to 17".

 

[1Fast-Turbo-Cou]

Thanks, what wheels are those? I may have to step down to 17".

They are 17" Saleen replicas from Americam Muscle. I had Weld Craft widen them and had Champion do the Beadlock for a total width of 12", then recoated them.

 

[brasscoe]

They are 17" Saleen replicas from Americam Muscle. I had Weld Craft widen them and had Champion do the Beadlock for a total width of 12", then recoated them.

Wow, you win. That's bad ass.