Re: Compression with J+E flat top pistons

From: Greg Locke (glocke(at)ihug.co.nz)
Date: Fri Apr 14 2000 - 00:23:15 CDT


Steven

Great.. more fun with the calculator..

It depends a bit on the deck height but here goes:

40 thou over = 1767cc, = 441.8cc per pot

std combustion chamber =38.6 cc
head gasket = 4.1cc
land volume = 0.6 cc
volume above piston at tdc = 2.0cc (assuming piston to deck distance at
tdc = 0.015 inch

total combustion volume = 45.3 cc

C/R = (441.8 + 45.3)/45.3 = 10.8:1

I've include the working for if you want to adjust anything, or if anyone
else on the list notices something that's not right (let me know too)

Greg

----- Original Message -----
From: Steven Silverstein <milano164(at)mediaone.net>
To: <alpines(at)autox.team.net>
Sent: Wednesday, 12 April 2000 03:02
Subject: Compression with J+E flat top pistons

> Does anybody know what the compression ratio would be with .040" over J+E
> flat top pistons and a stock unshaved cylinder head?
>
> Thanks for the info.
>
> Steve
>
>



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