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Old 11-20-2006, 02:08 AM   #1
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piston compression distance differences?

Appearently my block was zero decked to my pistons which had a 1.130 compression distance, my new pistons have a 1.125 compression distance, does this make my new pistons .005 further down the hole or higher up near the cylinder head?

thanks! also, quick question when I am figuring out my CR, it asks for piston to deck clearance, I used to put a zero in it, but now should I make it a .005 or -.005?

Thanks guys !
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Old 11-20-2006, 02:14 AM   #2
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the piston is going to be further down.. and for the compression thing, just do two calculations.. one with -0.005 and one with +0.005 and take the lower compression ratio.. its not that hard to put a minus sign in or take it away.. not tryin to rag on you but next time just try it.. it can only be one of the two..
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Old 11-20-2006, 02:19 AM   #3
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Thanks I understand, I really needed to know if it would be farther down or farther up, I could have figured out the second part.
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Old 11-21-2006, 12:43 AM   #4
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Your new pistons will give you .005 greater clearance.

I like to use this calculator
http://kb-silvolite.com/calc.php?action=comp
It's self explanatory.
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Old 11-21-2006, 12:43 AM
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