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  1. #1

    Anyone have dyno results from SHO engine?

    I am curious about how torque curves and horsepower curves peek with this engine. Has anyone dynoed this engine in any form? Thanks....


  2. #2
    there is alot of dyno information floating around as lots of members have done tests with different wheels etc but here is some hp vs speed off the top of my head.

    stock 215hp 6.5psi 7500rpm mph65+
    stage 1 230hp 7psi 7600prm mph70+
    stage 2 260hp at 12psi 7600rpm mph75+
    stage 3 310hp at 16psi 8300rpm mph80+

  3. #3
    Thanks for the input. I am curious about the torque curve and where it peaks and how it declines to peak engine speed. I will search more but I would think someone here has spent a ton of time on a dyno mapping all different supercharger combos etc.

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  5. #4

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    Here you go the info you requested on dyno runs http://www.greenhulk.net/forums/showthread.php?t=89124 Tommy Jordan

  6. #5
    Thanks Tommy.

  7. #6
    FZS Monty's Avatar
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    Quote Originally Posted by hialeahchiko305 View Post
    there is alot of dyno information floating around as lots of members have done tests with different wheels etc but here is some hp vs speed off the top of my head.

    stock 215hp 6.5psi 7500rpm mph65+
    stage 1 230hp 7psi 7600prm mph70+
    stage 2 260hp at 12psi 7600rpm mph75+
    stage 3 310hp at 16psi 8300rpm mph80+
    was wondering about this myslef. WHAT ABOUT 20psi? is it around 10hp per PSI? shoulde be around 350? i have no idea...

  8. #7
    I bought a watson 350hp kit and it runs 18psi wheel getting 85mph, my mates ski is running a gt35 housing @22psi wheel hp unknown but its not much quicker both ski run 98pump fuel here in oz

  9. #8
    FZS Monty's Avatar
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    20 psi =maybe 375 ish? My friend asked me as well and I had no idea what to tell him.

  10. #9
    +1 parasitic loss static compression and cam timing will also have a big effect.from what ive seen on this motor close to stock the ratio is something like 10-12hp with a supercharger 13-15hp with a turbo per given psi.more importantly more power doesnt always translate to more mph at the same rate which is likely why alot of guys stay stuck in the high 80's.it seems like it takes alot more hp to propell the ski at those speeds than at the slower speeds.

  11. #10
    Thats kind of my question. Is this engine running WOT at peak horespower or is it hanging out past peak horsepower. I am familiar with circle track racing. The engine will pull maximum hp at 6100 rpms but we turn it 7200 at the end of the straightaway. The horsepower falls from its peak but not much.

    With the water being a contanst force when the motor has revved out is that at peak horsepower or slightly beyond?

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