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| Head Gaskets for Forged Turbo Motor https://slantsix.org/forum/viewtopic.php?t=63601 |
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| Author: | gtb123 [ Thu May 09, 2019 2:59 am ] |
| Post subject: | Head Gaskets for Forged Turbo Motor |
As many have announced before, the K1-Wiseco forged rod and piston combination leaves an above deck height of about 0.010-0.015. Using a fixed number for combustion chamber volume of 58cc that leaves us with: 10.18 CR using an aussie gasket (compressed to 0.040). 9.98 CR using a 0.050 copper gasket. My machinist said I shouldn't expect to be able to take more than a CC out of each combustion chamber by blending. Any more would end up trenching around the valve seats, causing turbulence in the valve flow. That would get me -0.15 CR. Hypothetically. How do I get the rest of the way for a CR of 8.5-9.0? I run meth injection. Double copper gasket? One flat and one with a fire ring? Any proven combos that don't leak? (For a bit at least lol) -Greg |
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| Author: | Dart270 [ Thu May 09, 2019 3:12 am ] |
| Post subject: | Re: Head Gaskets for Forged Turbo Motor |
At one time, you could order copper gaskets that were as thick as about 0.120". That would about do it. Search for a company that can do that. Hussey and SCE are the two I remember. I have never used copper. Lou |
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| Author: | gtb123 [ Thu May 09, 2019 12:40 pm ] |
| Post subject: | Re: Head Gaskets for Forged Turbo Motor |
Ooh baby! Thank the lord Hussey makes one in 0.120! Leaves me at a nice 8.8 CR. That is if I can actually get it to seal... |
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| Author: | Polara1974 [ Sun May 12, 2019 2:34 am ] |
| Post subject: | Re: Head Gaskets for Forged Turbo Motor |
Hi. Why don't you just machine the top of the pistons down to get were you want your CR? I have never measure how beefy the Wiseco are on top, but beein made of 4016 if you have at least 4.5mm left you should be OK. |
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| Author: | Rick Covalt [ Fri Jun 07, 2019 7:08 am ] |
| Post subject: | Re: Head Gaskets for Forged Turbo Motor |
Quote: As many have announced before, the K1-Wiseco forged rod and piston combination leaves an above deck height of about 0.010-0.015.
Mine was .018-.020 in the hole not out if I remember correctly.
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