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Skinnies - why radial and non radial can be mixed

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Old Mar 10, 2008 | 03:58 AM
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Skinnies - why radial and non radial can be mixed

I read on Mickey Thompson's website that it is not recommended that radial and non-radial tires be mixed on the same vehicle.

Does anyone know why you cannot mix radial tires and non-radial tires?

Thanks,

Anthony
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Old Mar 10, 2008 | 06:57 AM
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it's not recommended.. It can cause the car to be very unstable and will track all over the place.

It's best to use bias ply both front and rear...
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Old Mar 10, 2008 | 08:12 AM
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a follow up question then, so if im running Mickey T ET streets in the rear what skinnies would you recommend up front?
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Old Mar 10, 2008 | 08:37 AM
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It makes the car a bit unstable on the top of the track, but not uncontrollable. But then again I never had non radials all around, it might have felt the same as with the combo.

In a light car doubt it would be much of a concern, but I never trapped more than about 118 with the combo in my old 5.0.

Lots of people mix tires at the track, and I have never heard of a track forbidding it which leads me to think that its probably not that big of a deal.
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Old Mar 10, 2008 | 09:29 AM
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I have noticed with et's and low profile radial tires if the surface of the track or road is groved it will sway and track the groves and at high speed can get dangerous. Just putting skinnies on the front bias or radial helps but running the same is best. At the speed anthonynyc traps i would prefer stable!
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Old Mar 10, 2008 | 10:25 AM
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So would Mickey T MT fronts work well with my 16 inch ET Streets?
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Old Mar 10, 2008 | 08:02 PM
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Im being questioned!!!?????????!!!
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Old Mar 10, 2008 | 08:17 PM
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I ran both ways, they both can be squirlly.
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Old Mar 10, 2008 | 08:47 PM
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Originally Posted by Viking War Hammer
I ran both ways, they both can be squirlly.

We've known you went both ways for quite some time now....
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Old Mar 10, 2008 | 08:57 PM
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I love it!
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Old Mar 10, 2008 | 09:11 PM
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Originally Posted by Viking War Hammer
I ran both ways, they both can be squirlly.
I KNEW IT.....
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Old Mar 10, 2008 | 10:44 PM
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Originally Posted by ErnieT
Im being questioned!!!?????????!!!
LOL!!!

You gave me great advice! I ordered them already but I wanted to understand the reason why these 2 types of tires don't work together. I searched google and could not find anything so I need the scientific explanation!!!

Ernie knows the story already, I went to the track yesterday which was a mistake, the temps outside were in the 30's. I ran a 10.6 but had to let off in 3rd and then a little in 4th because the car was getting loose. I was told the car left tiremarks in 3rd. I've been having issues where the car pulls to the right under load but now with the weather cold I was not sure if it was spinning or the front tires etc!!!!!!!!!!!!!!!!!!

Anthony

Last edited by AnthonyNYC; Mar 10, 2008 at 10:55 PM.
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Old Mar 11, 2008 | 08:59 AM
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So what are you going to be running front and rear then Anthony? brand and sizes please .
I was think thinking of running my 16inch MT ET streets with M&H 16 inch skinnies, will this be a good combo?
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Old Mar 11, 2008 | 10:23 AM
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The m&h skinnies wont even fit in the wheel well, i know i have a set of them. Anyone want some tractor tires!
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Old Mar 11, 2008 | 10:35 AM
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damn , thx for the info bud. So would I have to go for MT skinnies on 15inch rims?
would even 15inch rims fit over the FDs brake Calipers?
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Old Mar 11, 2008 | 12:28 PM
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Originally Posted by blitzboy
damn , thx for the info bud. So would I have to go for MT skinnies on 15inch rims?
would even 15inch rims fit over the FDs brake Calipers?
I have 15x4.5 Allumastars. No spacers needed. Tell them you need the same backspacing as the '04 Cobra.
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Old Mar 12, 2008 | 04:39 AM
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thanks Ernie
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Old Mar 12, 2008 | 10:23 AM
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Originally Posted by ErnieT
I have 15x4.5 Allumastars. No spacers needed. Tell them you need the same backspacing as the '04 Cobra.

whew, those are some pricey wheel, not too much less than i paid for my street wheels. I would think front runners would be cheaper, guess not. So that 15" wheel fits over the caliper, or does the offset just stick out far enough that it doesn't really overlap the caliper?
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Old Mar 12, 2008 | 10:29 AM
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Originally Posted by zinx
whew, those are some pricey wheel, not too much less than i paid for my street wheels. I would think front runners would be cheaper, guess not. So that 15" wheel fits over the caliper, or does the offset just stick out far enough that it doesn't really overlap the caliper?
There are cheaper versions of skinnies out there. I know Jegs and Summit make their own versions that are very similar to the Weld Racing wheels.
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Old Mar 15, 2008 | 09:30 AM
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The quasi scientific reason you don’t use them is b/c the road following traits of Bias Ply’s (slicks) and conventional radials are totally different, and typically fight each other. One set goes one way the other goes the other. The Bias-Plys are softer and will follow the road more than a radial. Radials has a very stiff tread section and sidewall and can keep their symmetrical shape and track down the road different The time I ran radial fronts and bias ply rears I HAD to lift in 3rd gear b/c the car was all over the track. Now with skinnies up front and the caster maxed out she tracks strait down the grooves.

Get the skinnies, you’ll love them

Not saying you cant mix them, its just easier to drive with all of one or the other.
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Old Mar 18, 2008 | 04:08 AM
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What options do I have since I have a Big Brake Kit upfront, i'll need a 17in skinny. This is the only reason why I dont own a set now...
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Old Mar 18, 2008 | 05:50 AM
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Originally Posted by Jay7 Nyc
What options do I have since I have a Big Brake Kit upfront, i'll need a 17in skinny. This is the only reason why I dont own a set now...
Thety don't make a 17" skinny, but CCW makes a 16". You'll need to measure your backspacing. No biggie. You can probably run a 15" with a spacer.
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Old Mar 18, 2008 | 07:52 AM
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This is common practice among high hp Supra guys to run a bias ply in the front and rear to keep the car straight.
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Old Mar 18, 2008 | 04:20 PM
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I ran a radial front tire(some metric VW tire), and a hoosier 28x9 and an MT 26x10(bias ply slicks), and never had any handling issues. Both on the street and the track, going 10.70s. That was still with mostly stock suspension/bushings...If anyone were to have an issue, it should have been me.

http://www.youtube.com/watch?v=SwS65EBPtQs
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Old Mar 18, 2008 | 05:23 PM
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M&H makes 17" front runners FYI. That's used with the 17" Weld Aluma Stars. IT will set you back some $1250 for the combo.
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