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Discussion Starter #1
this .pdf shows how to calculate the new compression ratio from HG changes and head/block decking....sorry if you have trouble with my handwriting.

if you can screen capture it and post it in the thread that would be cool

-M
 

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Discussion Starter #5 (Edited)
I believe that the TBKO method might have an error - TBKO's formula subtracts 1 from the CR, effectively throwing off the head volume artificially. I've got an inquiry in with him to see if maybe I misunderstand and my formula is wrong....
 

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Discussion Starter #7
I'm going with the book formula that TBKO references, though I'm not sure I understand why to subtract 1 from the CR. I don't like not understanding a formula, but I will look at it some more and see if I cannot figure out why they do that.

Thanks,
-M
 

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woah. good post.
 
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