chevy smallblock 400

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10-23-2007, 08:11 AM
demetrice askew

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.
10-23-2007, 09:39 AM
demetrice askew

desktop dyno anyone have one that can help me
10-23-2007, 11:02 AM
demetrice askew

do any body got a desktop dyno needs some numbers
10-23-2007, 11:39 AM
kitz

What is the compression ratio, then I'll run it for you.

Kitz
10-24-2007, 08:26 AM
demetrice askew

11.5compression
10-24-2007, 10:42 AM
kitz

1 Attachment(s)

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
10-24-2007, 10:49 AM
demetrice askew

thanks kitz i have 1.6 on the ex.What u mean by cam valve timing

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