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Old 03-17-2011, 06:25 AM
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camlifter camlifter is offline
Motorized Bicycle Elite Member
Join Date: May 2009
Location: acme labs marion ohio
Posts: 1,034
Default Re: thick or thin base gasket?

i made a spacer .100 thick and put it under the jug, then put the jug in a lathe and took .100 off the top. this raised the ports and gave very good over all power with a nice bump in lowerer rpm power. it's one of the best running engines i've built.
this engine also had an expansion chamber exhaust and porting.
put as thick a spacer under as you can without exposing the top of the piston to the intake port, then take an equal amount off the top of the jug.
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