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Jeff Higgins Jeff Higgins is online now
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Join Date: Mar 2004
Location: Higgs Field
Posts: 22,765
Quote:
Originally Posted by daepp View Post
I absolutely love this thread. No worries when someone occasionally forgets a pic - it happens to all of us - no harm no foul.

Also not fun when members antagonize others here. My $.02.


Random billet 5.0L 911 case:

Quote:
Originally Posted by Captain Ahab Jr View Post
Machining finish doesn't look best ever
Just a matter of the stepover vs. diameter of the ball end mill being used for machining. Cutting down the stepover would smooth it out considerably, albeit at the cost of increased machine time. In the areas left kind of "rough" that I'm seeing, it really doesn't matter anyway. Finish the mating surfaces and bearing cradles, and it's all good.

Tommy Olsen of ITG Racing has been mesmerizing us over on the S Registry with his machined from billet 2.0 liter cases for historic racing. Here is an example of the same cases, essentially, with much closer stepover:

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Jeff
'72 911T 3.0 MFI
'93 Ducati 900 Super Sport
"God invented whiskey so the Irish wouldn't rule the world"
Old 11-10-2021, 04:12 PM
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