Collecting Engine Parts

I've started collecting the engine parts I'm going to need to build up our new track motor. So far, I have the new double valve springs, valve retainers and valves. The valves are 1 mm oversize, so should provide a bit better breathing ability.

I've also got new pistons, clutch, aluminium flywheel, camshaft and sump baffle on order. Should be about 5 weeks plus shipping to Australia from California. The pistons are custom 11.7:1 JE pistons designed to suit the cam, the e21 1.8i head and are 2 mm oversize. The cam is a Top End Performance grind with 316 degrees duration and 11.5 mm lift. I decided to go even bigger than the 304 to make the most of the other mods and to keep the current engine running by not having to take parts out to re-use. By the time we port and polish the head, the engine should breathe a lot better. We're looking for around 180-190 bhp which should give the e12 the power to weight similar to an e30 M3!