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vanwyk4257 vanwyk4257 is offline
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Join Date: Aug 2004
Location: Grand Rapids, MI
Posts: 2,678
Originally posted by Shuie
Nice score! These are not real easy to find.

type 930/02, 930/52 both have the smaller journals for the 66mm crank or a 6 bolt 70.4mm crank.

2.8 RSR was 70.4mmx92mm - dont spin to 8000RPM with a 6 bolt 70.4mm crank. Usually 11+:1 when using 2.7 or 2.4 heads. Plan on twin plugs and bleanding race gas. Huge torque, huge power to weight ratio, lots of fun, etc.

2.8 short stroke is 95mmx66mm - should be bulletproof to 8000RPM.

Either way it should be a hoot
Thanks. You're right, this one will be a 95mmx66mm 2.8. I'm planning on running custom JE pistons to get approx. 10.5 and then a set of 78-79 SC heads per Wayne's engine book. Fortunately there's a gas station a couple miles from my house that sells 104+ octane racing gas, so I won't have to blend it!
Sans Porsche...for now
2009 Mazdaspeed 3 Grand Touring daily driver / DS autocross toy
2010 Subaru Forester X Limited - wife's daily driver
Old 03-09-2005, 07:08 PM
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