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jamesjedi's Avatar
Join Date: Aug 2004
Location: The Brink
Posts: 2,128
3.0 Engine History

I am looking at an engine that was used for an open wheel auto-cross car. he reversed the ring gear and hung it off the end. Is this something I should be concerned about? Would it require him to have made a structural change to the case/crank?

Here is what he wrote;

I installed a 3.0 liter naturally aspirated Porsche engine
>behind a TUI BH-3 Super V and ran it in SCCA Solo II B-Modified Class. BM at
>the time allowed anything that had been legal in any SCCA Class which included
>Formula 5000. That class allowed 5 liter American V-8s and 3 liter pretty much
>anything else. After much head scratching, I bought an engine and trans from
>PAR Porsche in Yonkers NY, reversed the ring gear and hung it off the end of the
>TUI. I blew my first engine and had Bob Cusimano build me a second engine
>complete with all of his big valves, twin plug heads, forged rods, Renntech
>Pistons, crank fire ignition, Quaife differential, etc. These cases replaced the
>original PAR case which came out of a 78 911 SC.

Thanks for any insight.

Old 11-12-2010, 10:33 AM
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