View Single Post
turbobrat930 turbobrat930 is offline
E-85 sippin drunk
 
turbobrat930's Avatar
 
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,482
Since you make no mention if you have the stock pistons in the SC motor or not, I will assume that you have the stock pistons. With that assumption, I would say race fuel or street gas, it doesnt matter, you should not run hardly any boost at all. With this being an air cooled motor, the C/R, not twin plugged, and the fact that you will not be running any type of aftermarket enigne management system ( MoTec, Link EFi, Fast, etc), I would say that the C/R will be your limiting factor, not what gas you run. IMHO, I would say anything more than 5 PSi of boost would be pushing it... and Porsche motors are a little more expensive than your average domestic or import motor if things go wrong.
Why not swap out the stock P&C's for some stock 930 ones?? It would be a cheap way to go, and you could then run about one bar of boost (14.5PSi). that is assuming that you have the other parts in place, good I/C, Euro fuel head, WUR mod.
BTW, I know where there is a good set of P&C's for a 3.3L 930 motor for cheap! and they include the cooling tin around the cyl as well......
__________________
Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-35RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk
Old 08-22-2007, 11:22 AM
  Pelican Parts Technical Article Directory    Reply With Quote #2 (permalink)