nope i didnt weld the weights as the dissy will be getting removed anyway, the z31 dissy runs the opticle sensor so with the greddy ecu i can control both timing and fuel as well as not needing a AFM and self tuning with the wideband, im not willing to push it just yet not until i get everything on and set up correctly, as for compression its estimated at 8:1 with the combination of the gaskets and the larger cc of the pistons. im not after a masive power, the engine will most likely never get boosted past 14psi , i always run premium 98 in all my cars so fuel is not so much the issue. power that im after is about 350hp at the rear which with the setup going in is more then achiveible. i may change the head to a P90 but with mild porting the N42 flows realy well, im maily shooting for nice driveability and reliability thats why i have gone a bit overkill with the ecu, injectors and turbo. i will keep you posted with the z31 dizzy and ecu conversion its looking to be quite strait forward with only needing to make a bush up for the dissy.
cheers pauly