ok i have a ls vtec with stock ls pistions and rods and a staock b16 head....i was wondering if anyone know how much static compression ratio more can u get out of a block and head combo by shaving the head and the block more????????

 

bump...woul like to know

 

bump....comon people someone needs to know, or at lease have a rought idea.

 

Check out C-Speedracing.com. They have a compression calculator. Where it asks for head gasket thickness, subract .030 (milled head) and you will have a decent idea.

 

Here, I did it for you. Your compression now is roughly 9.76:1. If you mill .030 off the head, you'll be right around 10.45:1. If you also zero the deck (Piston to deck height) you will be right at 11.0:1.

Make sure you check piston to valve if you use big cams, ls pistons don't have a large valve relief cut into them.

Have fun.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CompressionFed &raquo;</TD></TR><TR><TD CLASS="quote">Here, I did it for you. Your compression now is roughly 9.76:1. If you mill .030 off the head, you'll be right around 10.45:1. If you also zero the deck (Piston to deck height) you will be right at 11.0:1.

Make sure you check piston to valve if you use big cams, ls pistons don't have a large valve relief cut into them.

Have fun.</TD></TR></TABLE>

Yes like he said, Shaving the head/decking the block isn't the best way to squeeze compression only because you start to run into valve clearance problems! We just finished up a similar setup on a buddy's car but with a gsr head, it moves ok.

 

where did u get that infomation.....what formula did u use???

thanks man....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by punkracer &raquo;</TD></TR><TR><TD CLASS="quote">where did u get that infomation.....what formula did u use???

thanks man....</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CompressionFed &raquo;</TD></TR><TR><TD CLASS="quote">Check out C-Speedracing.com. They have a compression calculator. Where it asks for head gasket thickness, subract .030 (milled head) and you will have a decent idea.
</TD></TR></TABLE>

QUOTE=CompressionFed]Check out C-Speedracing.com. They have a compression calculator. Where it asks for head gasket thickness, subract .030 (milled head) and you will have a decent idea.
[/QUOTE]

THAT'S where he JUST TOLD you he got the info from...wow...read and reSEARCH homie...it's how we all learned.

 

i did read it. i know there a forumla for it i go to school for it, just wondering which one he used or C-speed uses