morerevsm3

and starting rear of grid in Improved production race at Phillip Island-

S52 is USA only boat anchor, euro 3.2 is S50B32...

on board from the 2.8L E30 posted earlier in the thread

I think from memory mine is 4.8kg, had a guy write a program for his CNC milling machine, balnce was only .4g out after machining!

how much for the head, posted to Australia, 3377 please?

2.8L M20, 14.5:1 compression with custom JE pistons, extensively modified head, custom grind cam, triple webers, E85....this is wheel kw, not corrected to flywheel-

as previous poster said, we drilled and tapped the sump as close as possible to block rail for the return, and used a tee piece where oil light sender is for feed

I built an E30 323i turbo car for performance forums 13's for $1300 challenge, the idea was to buy a car, and get it to run 13.xx 1/4 mile, for less than $1300 total spend, excluding safety items, and you were allowed to borrow tyres, with very dodgy setup consisting of ebay top mount manifold, chinese s/h but new A/R 63 turbo, 19lb injectors from 535i, ebay fuel management unit and 535i AFM, and a chinese intercooler, went about $60 over budget, but did run 13.5@ 102mph, blew the head gasket on the next run when boost was turned up and exhaust from dump back removed, it felt heaps stronger before the gasket went. when removing the head later, it had one thread in the block stripped and epoxied, no wonder it blew... building 2.7 for my sons car now, block is oringed, will have JE pistons to suit 2.7 with 885 welded head, 42lb injectors, megasquirt ecu etc, will mostly only run off wastegate pressure (9psi) which is still mental power son trying to get ports somewhere near matching

quick vid of my car from the event last weekend, ended up 2nd in improved production 2 litre- 3 litre, the RX7 that beat me went backwards into the wall just after the finish line though... www.youtube.com/watch?v=K8oxSWEEpic

the 3 litre USA only M3 engine is a S50B30US, and their 3.2 litre version is called an S52B32, our proper engines are S50B30, and S50B32... the throttle bodies require a tapered adaptor plate, a modified oil filter housing, and stand alone ecu to work on an M50/52, and in doing so, leaves injector bosses in less than ideal location, you will only gain 3 or 4 rwhp, but throttle response is improved, there is a guy here that did it, then turbo'd it later, and has since removed that motor and fitted an S50B30 and is finally happy...

so the engine makes ~ 500hp NA then?

here is a pic from turn 2, you can see the start arch in the background, turn 2 is where it starts to get steep

I have 3.64 diff in mine, and can still hit ~265kph (8100rpm limiter), 3.91 or 4.10 should suit your purpose if you don't drive the car on long road trips

from my 3 litre M3, after turn 2, hill is 19% gradient, i.e. it is very hard to walk up it is that steep, rev limiter is 8100rpm, enjoy

standard M3 cams are 264* I believe, my cams are a BMW part, from M division racing parts catalogue, I got them second hand, maximum power is at ~ 8000rpm, my limiter is currently at 8100rpm