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Re: 572 Hemi....take a stab at the numbers....
[Re: Evil Spirit]
#1235865
05/22/12 05:41 PM
05/22/12 05:41 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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Thats because you are not taking into consideration the displacement of the OPs engine.
What cubic inch were the Hemis you built, and what cams did you put in them? How do they run, or how well did they dyno?
As someone else posted, I wouldnt consider a 270 cam in a 572 a "big" cam.Your conventional thinking of a .650 is simply too small for this application. I'd say Bullet hit it pretty well. Also notice the 112 LSA.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: 572 Hemi....take a stab at the numbers....
[Re: CompWedgeEngines]
#1235866
05/22/12 06:45 PM
05/22/12 06:45 PM
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Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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Cam is definitely not too big. Mine is 276/284 at fifty, 112 LSA, 11:1 compression, and the same cubes. 185 psi cranking and on 93 octane pump gas. Mine does have less lift though.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 572 Hemi....take a stab at the numbers....
[Re: CompWedgeEngines]
#1235869
05/23/12 12:06 AM
05/23/12 12:06 AM
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Joined: Jan 2003
Posts: 6,392
nielsville, minn.
quickd100
master
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master
Joined: Jan 2003
Posts: 6,392
nielsville, minn.
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I had Bullet spec my cam out also. I told them that the best commonly available fuel here is 89.5 octane. I also wanted something that was easy on the valve train. My compression works out to 10.5-1, my dynamic compression is 7.57-1 with 148psi cranking. 605 ci the cam specs out at 757/676 288/292@.050 on a 113 center. I have never talked to anyone that didn't like the cam they got from Bullet. In almost all cases people said their new Bullet ran better and quicker than with their old cam. I have no doubt I'll like their cam. Dave 
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my 580" motor with 13.1 has a 282/290 @.050. it does awesome on the street.....
