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Likely to break the rear at the track?

This is a discussion on Likely to break the rear at the track? within the Drivetrain forums, part of the LSx Technical Help Section category; I am looking at buying some wheels and tires to swap on for track days and i got an offer ...

  1. #1
    I Fixed Da Rear jimbo98z's Avatar
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    Mystic Teal
    1998 Z28 M6

    Likely to break the rear at the track?

    I am looking at buying some wheels and tires to swap on for track days and i got an offer for some 28x10.5 MT ETs and i was wondering if that would be too much tire for a stock rear on an M6 car thats got an intake and exhaust, as well as a spec stage 2. Any help is much appreciated.


    Jim

  2. #2
    Member Exotic Performance Plus's Avatar
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    Hugger Orange
    1999 Z28

    Yup... I've seen the 10 bolts in these cars break with the stock tires. There really isn't anything you can do to build them up, the design is just too small with a 7.5" diameter ring and pinion. Bob
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  3. #3
    Member keliente's Avatar
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    99 Firebird Formula

    It's always a gamble. I have a spec stage 2 and a few bolt ons as well as 4.10's, and with drag radials I haven't broken anything yet, and this is at 4,500rpm launches. My bf's formula makes over 500hp on a ten bolt with 3.73's and a stage 3 clutch, and it runs strong as well so far.

    Why the MT ETs? With your mods I think just a regular BFG/Nitto drag radial would do the trick just fine.
    Last edited by keliente; 11-13-2005 at 08:14 AM.

  4. #4
    230,55,147 91Z28's Avatar
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    Cyclone Grey Metallic
    2006 GTO

    Quote Originally Posted by keliente
    It's always a gamble. I have a spec stage 2 and a few bolt ons as well as 4.10's, and with drag radials I haven't broken anything yet, and this is at 4,500rpm launches. My bf's formula makes over 500hp on a ten bolt with 3.73's and a stage 3 clutch, and it runs strong as well so far.

    Why the MT ETs? With your mods I think just a regular BFG/Nitto drag radial would do the trick just fine.
    Thats what sucks about 10 bolts, so unpredictable. My friend has a big block 84 Z28 that puts 475 to the ground, it hasn't broke yet. Then I know a guy who has broken 4 in a stock 2001 Z28 and another guy that busted one in a V6 Firebird. Its a gamble I guess, but stickier tires, higher ratio gears are sure going to make it break quicker.

  5. #5
    I Fixed Da Rear jimbo98z's Avatar
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    Mystic Teal
    1998 Z28 M6

    i'll be honest, i really don't know too much about the rears on these cars. what are some popular swaps and how much would they run if i did them myself?

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