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How much compression is lost from a .065" flycut?

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Old Feb 24, 2004 | 08:55 PM
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Default How much compression is lost from a .065" flycut?
Like the title says....any ideas?
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Old Feb 24, 2004 | 08:59 PM
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My -2cc cuts are about .150" deep, so I'd say less than 1cc.
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Old Feb 24, 2004 | 10:05 PM
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i get 13 cc's 3.900 x.065 x 51.48 thats alot to flycut i would get the right rods.
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Old Feb 24, 2004 | 11:02 PM
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Originally Posted by triumphman
i get 13 cc's 3.900 x.065 x 51.48 thats alot to flycut i would get the right rods.
You got me a little confused. He is flycutting his stock pistons to accept a larger cam. There is no need for diffrent rods. No way will you loose 13 cc's with a .065' eye brow in the piston. Like I said before it will be 1 cc or less.
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Old Feb 25, 2004 | 01:04 AM
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Originally Posted by Beast96Z
You got me a little confused. He is flycutting his stock pistons to accept a larger cam. There is no need for diffrent rods. No way will you loose 13 cc's with a .065' eye brow in the piston. Like I said before it will be 1 cc or less.
Yeah I'm w/ you
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Old Feb 25, 2004 | 11:58 AM
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1 cc = .061"

So Beast96Z about hit it on the nose..

Dan
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Old Feb 25, 2004 | 01:08 PM
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flycutting means machining the whole piston top,what you really wanted was cc's for .065 valve reliefs.
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Old Feb 25, 2004 | 04:34 PM
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Originally Posted by triumphman
flycutting means machining the whole piston top,what you really wanted was cc's for .065 valve reliefs.
Don't you flycut for valve reliefs?

Dan
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Old Feb 25, 2004 | 05:24 PM
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So back to my question, how much compression do I lose by flycutting .065" or just a shade under 1cc
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Old Feb 26, 2004 | 03:16 PM
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someone's gotta know this!
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Old Feb 26, 2004 | 03:51 PM
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I wouldn't worry about it. 1 cc isn't going to make any kinds of difference, maybe 3-4 HP at most, which will be made up by the cam anyway......Go build your **** and stop worrying about it


josh
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Old Feb 26, 2004 | 04:17 PM
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it takes 2cc to move 1 compression point. ie. 10.3 to 10.2 = -2cc's
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Old Feb 26, 2004 | 10:12 PM
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Originally Posted by Damian
I wouldn't worry about it. 1 cc isn't going to make any kinds of difference, maybe 3-4 HP at most, which will be made up by the cam anyway......Go build your **** and stop worrying about it


josh
****'s being built!!! Should be assembled tomorrow (hopefully)...with some dyno #'s I hope. I ended up milling the heads a bit to make up for it .
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Old Feb 27, 2004 | 12:31 AM
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Originally Posted by Damian
I wouldn't worry about it. 1 cc isn't going to make any kinds of difference, maybe 3-4 HP at most, which will be made up by the cam anyway......Go build your **** and stop worrying about it


josh
Hes a ricer... if he could make 1 rwhp by stripping the finish off his valvesprings he would do it

Sorry verbs but I had to
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Old Feb 27, 2004 | 04:16 AM
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Hes a ricer... if he could make 1 rwhp by stripping the finish off his valvesprings he would do it

Sorry verbs but I had to
While he's doing that i'll take care of that girlfriend he posted pics of

jk
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Old Feb 27, 2004 | 11:16 AM
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Originally Posted by Damian
While he's doing that i'll take care of that girlfriend he posted pics of

jk
LOL.....I'd let ya if I thought you could handle it
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