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acme911 acme911 is offline
Runnin on empty
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Join Date: Nov 2011
Location: Monterey, CA USA
Posts: 318
Looking forward

Originally Posted by Jonny042 View Post
That's the plan at this point. Just trying to figure out how to accomplish it. Sometimes I wonder what I've gotten myself into. Then I remember if it was easy, everyone would be doing it!

What I'm planning is to make a tapered ream to cut the appropriate taper in the stacks. It's a fairly slight taper but matches what I've read somewhere (David Vizard perhaps?) as optimum, around a 2% taper I think.

I'm not sure at this point if I'll have to first bore the stacks with a few parallel steps then ream, or if my planned ream/cutter will do the entire cut in on motion. The difference in time between the two methods would be measured in days....
Jonny, really looking forward on your final steps to accomplish this taper. Since my intake adapters were individual, it seemed easier to machine the required taper on my lathe. (38-34mm)
'74 911, Steel Wide Body Hotrod, 3.0, Jenvey ITB’s, AEM Infinity, KW V3's, Eibach Sways, JWest shifter and other stuff.
Old 12-11-2018, 07:57 AM
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