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DCR calculation PLEASE

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Old Oct 12, 2006 | 06:21 PM
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Default DCR calculation PLEASE

Adv. Duration 289/297
.200 164/169
110 LSA
108 ICL
-4cc pistons, .040 gaskets, 62cc heads.

Thanks!
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Old Oct 12, 2006 | 07:17 PM
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Assuming stock cubes, 10.8 SCR and 8.03 DCR. You can use the calculator you know. http://www.kb-silvolite.com/calc.php?action=comp
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Old Oct 12, 2006 | 07:34 PM
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thats cool. does anyone have all that info on a stock engine? then I can just adj. the things I have changed like the int. closing point, head port volume.
chris
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Old Oct 12, 2006 | 07:43 PM
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Nice...not giving away your duration/lift @ .050". i was going to go with one of their customs grinds, till I found mine.
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Old Oct 13, 2006 | 02:56 AM
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Originally Posted by Beast96Z
Assuming stock cubes, 10.8 SCR and 8.03 DCR. You can use the calculator you know. http://www.kb-silvolite.com/calc.php?action=comp
Please give me the exact Input buddy cause i had some rediculous numbers based on lilbuddy1587 specs. with explination....!!

peace
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Old Oct 13, 2006 | 09:23 AM
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Originally Posted by lilbuddy1587
Adv. Duration 289/297
.200 164/169
110 LSA
108 ICL
-4cc pistons, .040 gaskets, 62cc heads.

Thanks!
Being that i know this is a 382. I got 11.4 SCR and 8.5 DCR. I calculated with 3.9inch bore and 4inch stroke.

Originally Posted by Beast96Z
Assuming stock cubes, 10.8 SCR and 8.03 DCR. You can use the calculator you know. http://www.kb-silvolite.com/calc.php?action=comp
Beast96Z, Can you check my calculations ?

Last edited by Mcduffys; Oct 13, 2006 at 09:32 AM.
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Old Oct 13, 2006 | 10:46 AM
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i got 11.77 and 8.8..assumin deck height -.005
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Old Oct 13, 2006 | 11:23 AM
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Originally Posted by oange ss
i got 11.77 and 8.8..assumin deck height -.005
why a deck height of -.005?

i went with .007.... maybe im not understanding the deck height.

Last edited by Mcduffys; Oct 13, 2006 at 11:37 AM.
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Old Oct 13, 2006 | 11:52 AM
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"-" above block deck,"+" below block deck, in calculations anyway....stock is any where from -.005 to -.008
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Old Oct 13, 2006 | 04:15 PM
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guys, trying to figure this out for myself. how bout clueing a fella in on all the stock specs nec. to figure this out? Im still waiting on my cam card so I cant just put that info on here for you to figure out for me. as for cyl. CC, are they looking for combustion chamber size? or runner size? IM goin to assume chamber size right? whats the stock MLS head gasket bore diam? 4.0? thanks.
chris
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Old Oct 13, 2006 | 10:37 PM
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Originally Posted by Mcduffys
Being that i know this is a 382. I got 11.4 SCR and 8.5 DCR. I calculated with 3.9inch bore and 4inch stroke.



Beast96Z, Can you check my calculations ?
With the calculator I posted, I get 11:8 SCR and 8:85 DCR. If the piston comes above the deck, you have to enter the - number.


Originally Posted by Irocss85
guys, trying to figure this out for myself. how bout clueing a fella in on all the stock specs nec. to figure this out? Im still waiting on my cam card so I cant just put that info on here for you to figure out for me. as for cyl. CC, are they looking for combustion chamber size? or runner size? IM goin to assume chamber size right? whats the stock MLS head gasket bore diam? 4.0? thanks.
chris
Not sure on the exact stock specs, if search worked, you could probally find it. You need to know your combustion chamber volume. 62cc's in this guys case. You'll also need the formula for calculating IVC at .006". It's not on your cam card. That formula is : Advertised duration divided by 2, plus your ICL, minus 180. That will give you the IVC for the last blank. The site says just add 15 to .050", but that is horrendusly off, and basically a guess.

Last edited by Beast96Z; Oct 13, 2006 at 10:45 PM.
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