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Tippy Tippy is online now
Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,212
Quote:
Originally Posted by JoeMag View Post
I had a discussion with well known 911 engine builder and he was telling me about engines that he’d built that had zero piston to valve clearance so the could not run them higher than idle until they warmed up and they’d have clearance. He noted a 911 engine grows 1/8” wider from cold to NOT.

So I would assume piston to head clearance would grow too.
Hmmm, other engines you try to achieve zero clearance but I assumed we had put in clearance because the pistons could touch?
Old 03-15-2022, 08:46 PM
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