Compression ratio for 2056, While i am at it |
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Compression ratio for 2056, While i am at it |
worn |
Aug 22 2019, 08:20 PM
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#1
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can't remember Group: Members Posts: 3,175 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest |
Pulled the motor after several years of service from the 2056 build. Two problems have plagued me. The reason i pulled the engine was to seal persistent oil leaks. I am going after the oil pump and some gaskets and seals. The second problem has always been cylinder head temps. They are kinda high. I built the motor to have a 9.0:1 compression ratio, which works in my cast iron block, water cooled TR6. On further consideration, that may be a tad high. Especially after a few hours of highway driving in the summer.
The internet has lots of calculators to do the math. I can get or may already have cylinder shims. What ought it to be? The goal is dependable gobbling of miles with some increased power due a 2056. Suggested ratios? Guess i should have asked this question some time ago. Thanks folks. You are great. |
yeahmag |
Aug 23 2019, 10:22 PM
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#2
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Advanced Member Group: Members Posts: 2,424 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
John Connolly of aircooled.net (who I trust) recommends 7.8-8:1 on that cam. I’d guess that’s a smoking gun assuming everything else is good.
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