Doing a sc12 mod on my 998,
What is the boost pressure off the standard pulley? Would it be wise to get low compression pistons? Also can you get small magnetic clutch pulley to get more boost?
If you can give me info on different boost pressures and piston types that would be great coz im kinda in the dark with that now.
Cheers

I am doing the same set up, though a 1098, bored .040 & stock pistons.
Will be getting it tuned next thursday so can let u know what boost it runs with stock pulley..
If you go with low comp pistons then u would need to get a smaller pulley (lower comp, more boost). I wouldn't worry about a clutch type, just a new fixed type pulley.

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Carl
Previous Owner & Driver of 1 Morris "It's not a Cooper!!" 850