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Compression ratio's


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#1 mighty_mini

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Posted 03 May 2005 - 01:13 PM

I was looking at the standard turbo pistons, and im right in thinking that they are 12cc dish as standard and produce a CR of 9.4.

Then looking at minispares 10cc +40 pistons, claiming 9.4 CR, and after being on the phone to a guy at Morspeed about my 10cc +40 and he said it will make the same CR as standard too.

There seems to be a bit more space from the deck to piston than with the standard pistons, so is the missing cc from the dish taken out of the edge??

#2 AlexF2003

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Posted 03 May 2005 - 02:47 PM

std 20731 has a 12cc dish.

have a look at:

www.afracing.com/cr.xls

and have a play with what you have :lol:

Alex

#3 Guess-Works.com

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Posted 06 May 2005 - 07:39 PM

Alex, that's one way cool excel....

Would you mind if I pinched it, and put it in the FAQ section...

#4 AlexF2003

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Posted 06 May 2005 - 09:40 PM

nope so long as you credit copyright to AFRacing LTD and the authour Karl Doody :lol:

Alex

#5 Guess-Works.com

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Posted 06 May 2005 - 10:23 PM

You've just done it :lol:




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