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Search: Posts Made By: lr172
Forum: Traditional Aircraft Engines 07-06-2022, 08:22 AM
Replies: 7
Views: 895
Posted By lr172
Seems way off to me. My porsche boxer engine...

Seems way off to me. My porsche boxer engine (air cooled) has about 9:1 CR and registers 160-170 PSI and that is with tired rings.

Larry
Forum: Traditional Aircraft Engines 07-05-2022, 07:44 AM
Replies: 7
Views: 895
Posted By lr172
The 160 version has higher compression ratio. It...

The 160 version has higher compression ratio. It achieves this by increasing the distance between the piston top and the piston pin hole. The resulting smaller compressed area creates the increase...
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