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Thread: Dynoed my engine today

  1. #1
    Member JUNIOR BUILDER
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    Dynoed my engine today

    OK so it was just a Virtual dyno but it dynoed at over 600HP Can this be even close? How accurite is a virtual dyno? The site says +/- 5%??

    Here is what i got you tell me.

    SBC 400 bored 40 over

    Forged Crank/Pistons flat top

    Brodix Track 1 mild port/complete port

    Comp Cams:
    Hydrolic Roller RPM RANGE 3000 TO 6500
    PART # 12-460-8
    CAM GRIND # 304HR
    DURATION 304/304
    DURATION @ 0.50 IS 244/244
    VALVE LIFT WITH 1.5 ROCKERS IS .600/.600
    LOBE SEPERATION ANGLE IS 110 DEGREES

    Comp Cams Magnum Roller rockers

    Brodix Dual Plane intake

    Holley 4150 Pro Series 750

    MSD Ignition:
    6AL
    Pro Billet Dist.
    Blaster 2 coil

    Edelbrock Gear drive

    Holley Blue series fuel pump.


    Well could it be close to 600HP??

    I am in the middle of putting it in the car so i will know for sure in a week or 2 when i put it on the real dyno, but i am wondering.

  2. #2
    Senior Member RACING JUNKIE
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    I would say a virtual dyno is off by more like 10-15%.

    At least that is what I have seen on other computer dyno software and been told.

  3. #3
    Administrator RACING JUNKIE bjuice's Avatar
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    as Carl said 10-15% off...but even then you still looking at 540hp..

    remember what i told you about it probably capable of making 600 hp ..and no PROBLEMS MAKING 500 HP..

    i did not pull these numbers out of the AIR or on a DESK top Dyno...this is real life expereience of running these 406ci motor over the past 10 years and testing them on real MOTOR DYNO'S..

    as a said before my wife has a very,VERY mild 406ci I built her 3 yrs ago,out of the box steel Dart iron eagle heads, very small ( 520) flat tappet solid lift cam..off the shelf holley 750 carb....this motor dynoed 460hp at 6500 rpm..

    you got a lot more 406ci then she has got trust me....

    i had a very similer 406 in a 63 Bug..steel world heads ( bowl blended) and a slightly bigger cam with a 1000 silver claw carb aluminum rod motor..and it dynoed right at 620 hp...


    So DO NOT be surprised at these numbers your stumbling on...

    also sounds like your gonna put it on a chassis dyno..remember it will lose anywhere from 15% to 25/30% hp thru the chassis from the fly wheel


    good luck.

    Brian[/u]
    Bjuice..

    "I'M YOUR HUCKLEBERRY ! "

  4. #4
    Member JUNIOR BUILDER
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    Well i will be happy with anything close to the 500HP mark.
    68' Chevy Camaro

  5. #5
    Member JUNIOR BUILDER
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    Is a virtual dyno anything like virtual sex?
    The show queen gets [email protected]

  6. #6
    Senior Member DYNO OPERATOR
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    Blue68Camaro what weight is your car. I just want to play around with the #'s an see what I come up with. If you don't know I can guess within 2 tenths.
    Wesley
    60' 1.30
    5.58 @ 127.89

  7. #7
    Senior Member RACING JUNKIE
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    Quote Originally Posted by margaritaman
    Is a virtual dyno anything like virtual sex?
    Same only different :shock:

  8. #8
    Administrator RACING JUNKIE
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    Quote Originally Posted by margaritaman
    Is a virtual dyno anything like virtual sex?
    I wouldn't want to hold my breath on either one of them :P :P :P

    Don't set yourself up for a big disapointment
    There Is 1 Thing Better Than Cubic Inches,,,More Of Them


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