Piston Comparison
A single gate works for me as well. It just has to be correctly engineered.
To consider investing my time and energy that way on a professional basis, I'd need to be part of a cause (e.g. racing project).
Mine is about 8.5:1, and was originally configured around 93 octane. With E85 now readily available here, if I had to do it again, I'd peg it in the low 9s.
To consider investing my time and energy that way on a professional basis, I'd need to be part of a cause (e.g. racing project).
Mine is about 8.5:1, and was originally configured around 93 octane. With E85 now readily available here, if I had to do it again, I'd peg it in the low 9s.
Thread Starter
Joined: Jan 2004
Posts: 11,406
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From: Northwest
Then you need to account for fuel sometimes as well. I love the tech in this thread, well done Ted 
Guess my compression? Winner will receive fame and fortune...or something.
Yes these are for a 85mm 4G63. The rest of the build is currently hush hush as the customer prefers anonymity. These have lateral gas ports, accumulator grooves, contact reduction, and window milling. They still ended up a little porkier than I was hoping though.
Guess my compression? Winner will receive fame and fortune...or something.
Yes these are for a 85mm 4G63. The rest of the build is currently hush hush as the customer prefers anonymity. These have lateral gas ports, accumulator grooves, contact reduction, and window milling. They still ended up a little porkier than I was hoping though.
Last edited by JohnBradley; Jan 22, 2009 at 11:05 AM.
Evolving Member
Joined: Nov 2007
Posts: 177
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From: Hellas
Then you need to account for fuel sometimes as well. I love the tech in this thread, well done Ted
Guess my compression?
Yes these are for a 85mm 4G63. The rest of the build is currently hush hush as the customer prefers anonymity. These have lateral gas ports, accumulator grooves, contact reduction, and window milling. They still ended up a little porkier than I was hoping though.
Guess my compression?
Yes these are for a 85mm 4G63. The rest of the build is currently hush hush as the customer prefers anonymity. These have lateral gas ports, accumulator grooves, contact reduction, and window milling. They still ended up a little porkier than I was hoping though.
)
Evolved Member
Joined: Jan 2008
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From: Australia
whats the weight?
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Joined: Mar 2008
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From: uk
