What compression ratio should be targeted for a C15 intended for trials? It is a 1960 C15S. The available range seems to go from 6.5 to 10:1. It looks like early C15T had 6.5:1 and later models had 8:1.
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#1
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Posted 10 November 2008 - 02:10 AM
#2
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- Location:Cork, Ireland
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Posted 11 November 2008 - 10:37 AM
Hi mcman
my bike is not dedicated trials but previous owner for some reason chose B25 piston and compression ratio landed at 8.75:1
Useful link here for calculating
Visit Puma Tech
my bike is not dedicated trials but previous owner for some reason chose B25 piston and compression ratio landed at 8.75:1
Useful link here for calculating
Visit Puma Tech
Edited by nigelog, 11 November 2008 - 10:38 AM.
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