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IRS on a 1000HP car?

Discussion in 'Driveline' started by turbofiveoh, Jan 3, 2012.

  1. turbofiveoh

    turbofiveoh New Member Established Member

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    I've been strongly considering doing an 03/04 IRS swap into a turbo Fox body that makes 903/955 RWHP/TQ in lieu of the conventional built SRA with TA and PHB. I've been asking around and have gotten mixed feedback. So I thought I would post up here and see what people think.

    If I were to use a full tilt boogie or maximum motorsports delrin kit with stock 03/04 axles or DSS level 3+ axles would the IRS live with the occasional launch with sticky tires?

    Thanks for the feedback.
     
  2. Jefe

    Jefe Well-Known Member Established Member

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  3. GodStang

    GodStang Well-Known Member Established Member

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    Level 3+???? There is only Level 2 and 5...
     
  4. turbofiveoh

    turbofiveoh New Member Established Member

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    He might have fat fingered his email, let's call it level 2.

    Jefe, the car will be driven on the street about 90% of the time and if I do that it to the track I'll launch it at 3000-3500RPM. Thanks for the links!
     
    Last edited: Jan 4, 2012
  5. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    Please don't waste your money on any L-* halfshaft. They will cause FAR more problems for you than they are supposed to cure.

    FWIW

    :thumbsup::coolman::beer:
     
  6. S7OCK_03

    S7OCK_03 WHIPPLED Established Member

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    So, do you suggest stock over the level 'x' halfshafts?

    Or is that a subtle way of saying go solid?
     
  7. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    Power is NOT what breaks halfshafts. Rubber in the IRS and unstabilized IRS components mounted in rubber, along with wheel hop, is what breaks halfshafts.

    Level-* halfshafts are NOT the answer to fixing an IRS. Removing all of the rubber IS!

    The only way I would recommend a solid axle is if you had a dedicated drag car that was hauled on a trailer to the drag strip. THAT'S IT.:-D

    :thumbsup::coolman::beer:
     
  8. Daron

    Daron Mean01 Established Member

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    how would one R/R the rubber ? interesting.
     
  9. 10sec89

    10sec89 New Member Established Member

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  10. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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  11. SlowSVT

    SlowSVT Well-Known Member Established Member

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    If your car is set-up to corner the IRS is a great idea. But in a car that makes 900 hp, not so much because at that power lever you will be a hairs breath away from swapping ends if you get a little too deep into the pedal. This sound more like a drag racer where I would keep the SRA.
     
  12. unit213

    unit213 Bone Stock Established Member

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    Well, you do sell IRS components so I would expect that to be your recommendation.
    Personally, I would ditch the IRS immediately. I did after breaking the IRS and I'm pleased with the solid axle.
     
  13. vip3r1850

    vip3r1850 Member Established Member

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    Very well put. I agree, @ that power level scrap the IRS idea
     
  14. ac427cobra

    ac427cobra FULLTILTBOOGIERACING.COM Staff Member Super Moderator

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    If drag racing is your primary concern and you don't care about ride comfort or handling, then you may be happy with an SRA.

    BUT........................... most of the people that I know drive their car on the street 99% of the time and that should be taken into consideration. :read:
     
  15. mach1033

    mach1033 Active Member Established Member

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    From the OP post it seems to me that this is more of a street brawler than drag car. I think the irs swap is a great idea. If you do this I don't see an issue with launching. FTBR, irs brace or upgraded diff cover and a Detroit tru trac you will be fine.
     
  16. unit213

    unit213 Bone Stock Established Member

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    99.9% street car here with a solid axle and its just fine. It's a mustang. Buy a BMW if you want comfort. There are zero creature comforts in a cobra, the interior sucks, seats suck, etc...and you're worried about ride quality? Odd.
     
  17. SlowSVT

    SlowSVT Well-Known Member Established Member

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    :pop:
     
  18. mach1033

    mach1033 Active Member Established Member

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    Yup!!!
     
  19. Competition

    Competition Hood Rich Established Member

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    What's wrong with a SRA on the street? Tons of cars use a SRA just fine.
     
  20. SuperSport01

    SuperSport01 Member Established Member

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    Fulltiltboogie + DSS axles.
     

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