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: 3,163 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. |
rbzymek |
Aug 28 2019, 02:43 PM
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#2
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Member Group: Members Posts: 195 Joined: 5-April 19 From: Northville, MI Member No.: 23,013 Region Association: Upper MidWest |
So I will be receiving my SCAT 2056 long block in a couple weeks. I requested a Web 73 cam and 8.5:1 CR. They did the build with new type 2 heads and 42x38 valves. This will allow me to re-use my tin and intake system. The exhaust valves will be sodium filled, with SS 2.0L heat exchangers. I plan to use my L-Jet FI from the 1.8 that I am rebuilding. After reading this thread I am wondering if I will have temperature issues. I do have a taco plate temp gauge but it only has a red zone, no numerics. I also have a wide band AFR meter for tuning. The engine is ready to ship at this point. Any suggestions or things to look out for? Better temp gauge? How hot is too hot? Thanks in advance.
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