I'm going to make project on BMW base with motivation: "Biggest straight six in a small car + turbo+megasquirt and with <2000 pound budget" and this leaded to BMW.
First thing to do is of course finding as much info as I can and I've been busy
So far I'm going to use M30B34 block from E28 + M30B35 head from E34 as this lowers comperssion (correct me if I'm wrong). There is still question about cam shafts as I don't know weather stock 260+ degee is ok on turbo or it is better to use wilder cam (might need some info on this). Turbo is still unknown. As far as I know engine block,rods,pistons can handle up to 550hp (correct me if I'm wrong). On injectors I'm going for skyline ones of if my budget alows - 600 - 680cc. Engine management is no problem: buy megasquirt solderable kit and tune it (yeah I know - it is not so easy
) Exhaust manifold - I can weld it on my own with no problems. I'm going to make digital model on solid works and test it for best flow before welding one. Trany - I'm going to use manual from E34 with E28 fly wheel and here in Latvia are guys who can make me ceramic plates and attach them to stock clutch plate and this seems to be the best solution on LOW budget.
rear differential depends on the E30 base (318,320...)
The biggest question is drive shaft from trany to diff as I haven't found any conclusive info on witch drive shafts can be used? Please help on this one as I don't want to custom fabrication on this one.
The other question is engine mounts - do I have to fabricate or there is something that already fits?
This project is now on hold as I have to sell my previous project - Toyota Celica GT4 ST165. As soon as that happens - BMW there I come
