Subject: [Fot] Head Thickness

From: damys--- via Fot <[email-masked]>
Date: Fri, 10 Apr 2015 21:07:11 -0400 (EDT)

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So we just got the head back from the sonic test, picture attached.  Our 
numbers are quite a bit less than Chuck's.  Do you guys think we will be 
OK  at .065?  Our compression, according to our calculations, is 9.76:1. 
This seems low to us.  Our combustion chambers are 34.5 cc's.  The total 
thickness of our head is 3.283, and we're bored .010 over.

Does the compression seem right for this thin of a head?  Are we OK with 
only .065" of material to the water jacket?

Thanks,

Dave and Alex

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<DIV ALIGN=3D"LEFT"><FONT FACE=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" LET=
TERSPACING=3D"0" KERNING=3D"0">So we just got the head back from the sonic =
test, picture attached.&nbsp; Our numbers are quite a bit less than Chuck's=
.&nbsp; Do you guys think we will be OK&nbsp; at .065?&nbsp; Our compressio=
n, according to our calculations, is 9.76:1.&nbsp; This seems low to us.&nb=
sp; Our combustion chambers are 34.5 cc's.&nbsp; The total thickness of our=
 head is 3.283, and we're bored .010 over.</FONT></DIV><FONT FACE=3D"Verdan=
a" SIZE=3D"2" COLOR=3D"#000000" LETTERSPACING=3D"0" KERNING=3D"0"><br></FON=
T><DIV ALIGN=3D"LEFT"><FONT FACE=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" L=
ETTERSPACING=3D"0" KERNING=3D"0">Does the compression seem right for this t=
hin of a head?&nbsp; Are we OK with only .065&quot; of material to the wate=
r jacket?</FONT></DIV><FONT FACE=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" L=
ETTERSPACING=3D"0" KERNING=3D"0"><br></FONT><DIV ALIGN=3D"LEFT"><FONT FACE=
=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" LETTERSPACING=3D"0" KERNING=3D"0"=
>Thanks,</FONT></DIV><FONT FACE=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" LE=
TTERSPACING=3D"0" KERNING=3D"0"><br></FONT><DIV ALIGN=3D"LEFT"><FONT FACE=
=3D"Verdana" SIZE=3D"2" COLOR=3D"#000000" LETTERSPACING=3D"0" KERNING=3D"0"=
>Dave and Alex</FONT></DIV>
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