Combustion with new heads. - Team Camaro Tech
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post #1 of 7 (permalink) Old Jan 18th, 05, 02:49 PM Thread Starter
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I can't remember who sent me the program (sorry) for dynamic compression ratio spreed sheet, but...

I got 10:1 Static and 7.9 dynamic with .042 quench, is this ok ? 406sbc,steel heads.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #2 of 7 (permalink) Old Jan 18th, 05, 03:31 PM
 
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Imho, NOT knowing any more about your combination, I will hazard an answer and say, "good enough for me"!!

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post #3 of 7 (permalink) Old Jan 19th, 05, 11:28 AM Thread Starter
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400 +.030
5.7 rods
TRW (Forged)
0 deck
CC 280H cam (230 @.050,.486 I/E,110 LS,106CL)
Protoplines
3.75 stroke
HEI with a 6al box
Torker intake
750DP (4779-6)

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #4 of 7 (permalink) Old Jan 19th, 05, 12:27 PM
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assuming 76cc heads & 4 eyebrow (6.1cc) pistons, pat kelley's calc gives the same #'s. Should be ok.





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post #5 of 7 (permalink) Old Jan 19th, 05, 01:13 PM Thread Starter
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Sorry for the confusion... heads are 72cc chambers and 200cc intakes. pistons are -12cc. I should have posted those numbers also.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #6 of 7 (permalink) Old Jan 19th, 05, 03:11 PM
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a little lower than I figured then, still good on pump gas





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post #7 of 7 (permalink) Old Jan 20th, 05, 03:57 AM
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I get 9.9:1 / 7.89:1 then





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