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Thread: chevy smallblock 400
          
   
   

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  1. #1
    demetrice askew's Avatar
    demetrice askew is offline CHR Member Visit my Photo Gallery
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    Question chevy smallblock 400 DESKTOP DYNO NEED SOME NUMBERS

     



    Do anybody have a desktop dyno need to know how much hp ill be making. 400 bored 30 over,speed-pro hypereutectic piston h400cp 4-valve reliefs. stock rods with arp rods bolts.LUNATI MECHANICAL ROLLER CAM .640/.645 Lift at 50 276/284.Procomp aluminum heads 190cc bowl been cleaned up 3angle valve job shaved to 58cc.2.02 valves.1.5 pro magnum roller rockers.A holley single plane race intake 4500-7600rpm,and 750 double pumper.
    Last edited by demetrice askew; 10-23-2007 at 11:22 AM.
    meat1037

  2. #2
    demetrice askew's Avatar
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    desktop dyno anyone have one that can help me
    meat1037

  3. #3
    demetrice askew's Avatar
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    do any body got a desktop dyno needs some numbers
    meat1037

  4. #4
    kitz's Avatar
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    What is the compression ratio, then I'll run it for you.

    Kitz
    Jon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400

  5. #5
    demetrice askew's Avatar
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    11.5compression
    meat1037

  6. #6
    kitz's Avatar
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    I assumed a 1.6 exhaust valve with large tube headers with open exhaust. Best results are achieved when the head flow specs are known along with the cam valve timing. But this should be a reasonable estimate.

    Regards, Kitz
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    Jon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400

  7. #7
    demetrice askew's Avatar
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    thanks kitz i have 1.6 on the ex.What u mean by cam valve timing
    meat1037

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