Thread: chevy smallblock 400
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10-23-2007 08:11 AM #1
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
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10-23-2007 09:39 AM #2
desktop dyno anyone have one that can help memeat1037
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10-23-2007 11:02 AM #3
do any body got a desktop dyno needs some numbersmeat1037
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10-23-2007 11:39 AM #4
What is the compression ratio, then I'll run it for you.
KitzJon 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
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10-24-2007 08:26 AM #5
11.5compressionmeat1037
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10-24-2007 10:42 AM #6
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, KitzJon 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
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10-24-2007 10:49 AM #7
thanks kitz i have 1.6 on the ex.What u mean by cam valve timingmeat1037
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