Dynamic compression

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Dynamic compression

Post  Rabbit on July 29th 2014, 11:17 pm

OK dynamic compression 9.5 dynamic cranking pressure is 198.03 PSI is this to high for 93 pump gas a lot of street time 466cid truck 3680pds 4.11 rear C6 2800 stall will not be towing •Advertised Duration (Int/Exh): 276/284
•Duration @ .050 (Int/Exh): 233/241
•Gross Valve Lift (Int/Exh): .564/.582
•LSA/ICL: 110/106
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 2200-6400
ABDC in. Closes *42.5
quench .045
.005 in hole
15cc step dish
850CFM carb
10.5to1 comp static
75cc chambers alum heads
MSD 6AL
29in tire
all the help I can get would be awesome


Last edited by Rabbit on July 29th 2014, 11:35 pm; edited 1 time in total
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Re: Dynamic compression

Post  dfree383 on July 29th 2014, 11:34 pm

That's way to high dynamic for pump gas IMO
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Re: Dynamic compression

Post  Rabbit on July 30th 2014, 12:14 am

how about 8.74 in the dynamic compression went to UEMpistons.com and that's what I got they said add *15 at ABDC
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Re: Dynamic compression

Post  SandHillsHillbilly on July 30th 2014, 1:11 am

These might get you there with 24.4cc dish and forged for about the same money you will pay for those KB Hypers. 9.6 static

http://www.probeindustries.com/Ford_460_24_4cc_Dish_Top_FPS_Pistons_p/p2404f.htm
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Re: Dynamic compression

Post  Rabbit on July 30th 2014, 1:17 am

i already got 9.5 DCR I just want to know if I can run 93 safely and be good with what I got it just seems a little high  bounce
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Re: Dynamic compression

Post  SandHillsHillbilly on July 30th 2014, 1:44 am

Oh ok I misunderstood. Thought you didn't have it built yet. Those would drop you a good point if you needed to change. I don't know if it would be enough or not.

Only other thing you could do is a cam change.
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