Tire wheel size 81 z28 street strip

Discussion in 'Competition Camaros' started by 54baker, Aug 23, 2017.

  1. 54baker

    54baker Member

    89
    3
    Oct 29, 2014
    Waverly, ia
    Building a street strip 81 z28 with th400, line lock, 392 stroker has 408hp at 5300 with 490 torque at 3600. Going with caltracs set up including shocks and a mono or split leaf. Still has 10 bolt posi.... full interior car. Thinking either drag radials in order to drive on street or maybe slicks and just throw on my current 26.6" street tires when cruising. Looking at 3.90 gears with this size tire...not sure I can go bigger with this little hp and wheel well size in order to go to 4.10 gears.... thoughts on wheel size, offset, and tire size. Thx.
     
    Last edited: Oct 23, 2017
  2. 54baker

    54baker Member

    89
    3
    Oct 29, 2014
    Waverly, ia
    Slicks.....not slices :eek:
     
  3. vegas1974z28

    vegas1974z28 Moderator Staff Member Lifetime Gold Member

    4,563
    73
    Jan 10, 2002
    Las Vegas,NV
    well i run a 28x10.5x15 slick and I'm 90% sure the backspacing is 4.5 in
     
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  4. RS1979

    RS1979 Veteran Member Lifetime Gold Member

    2,462
    212
    Jun 18, 2013
    Memphis, TN
    I've got 275/60/15 tires on my '79. They are 28' tall and, according to a chart, are 10.8" wide. I've got 4.5" backspacing and they fit fine.
     
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  5. 54baker

    54baker Member

    89
    3
    Oct 29, 2014
    Waverly, ia
    Are you guys running 4.10's? I was thinking 3.90's but may have to go 4.10's with a 28" tire. Just curious. You guys may be running a complete different set up to where it's not comparable to mine. Just curious. Trying to use some charts to see where my rpm will be at the end of the 1/4.
     
  6. muscl car

    muscl car Veteran Member Lifetime Gold Member

    I'm running 275/60-15 drag radials on 15x8.5 Weld Drag lites .in also running full Calvert rear suspension - split monos ,cal tracs and 9 way adj shocks

    Also 3.73 gears and a 4200 stall converter

    This set up hooks hard on the street
     
  7. 54baker

    54baker Member

    89
    3
    Oct 29, 2014
    Waverly, ia
    What are you running for motor?

     
  8. muscl car

    muscl car Veteran Member Lifetime Gold Member

    11.1:1 350 sbc ,257/269@ .050 mech flat tappet cam 4200-7k rpm
     
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  9. vegas1974z28

    vegas1974z28 Moderator Staff Member Lifetime Gold Member

    4,563
    73
    Jan 10, 2002
    Las Vegas,NV
    I go thru the traps at around 6800 @ 127ish
    4:10
    4500 stall
     
  10. 79RedZ

    79RedZ Veteran Member

    582
    15
    Mar 24, 2009
    Hamilton,MI
    +1 on this.
    I'm running MT drag radials.
    I'm shifting at 6500 and run through the lights at 6200.
    3500 stall
     
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