1980 BMW M535i

Click on a picture for a larger view Here is a note from Peter about his car: Hi BMW fans, here is a discription of how I rebuilt and tuned my engine. This engine I made for everyday driving and not for maximum horsepower. I hope that my translation is understandable for everyone. If not - then please correct me.
1980 BMW M535i Powertrain and turbo system block from 745 turbo: bore 93,6 mm, bore has exactly 90° to the crankshaft line rods are lighter, polished and balanced crankshaft with 88,0mm stroke and balanced pistontop tripple forged in a 120° angle pistontop changed according to my idea (compaction ratio 8,2:1) pistons and rods are balanced with a weight difference of 0,5grams from the first to the sixth piston reduction bush in the oilchannel leading to the cylinderhead for more oilpressure in the block. Fly-wheel made lighter and balanced special rodbearing and crankbearing clutch sintered metal (my clutch had the contact pressure and friction worth from the E39/M5 and this was too weak) smaller gearwheel on the oil-pump cylinderhead from a newer M30 engine because it has bigger channels channels made bigger (like a venturipipe from the inlet manifold to the valveseat) and polished valve seats mill bigger bigger valves: intake 49mm, exhaust 39mm and polished butterfly valve system M5/M88 and a selfmade adapterplate for the 2-valve head cylinderhead on the exhaust side changed for the exhaust manifold system from 745 turbo stronger valve springs fitted according to the camshaft steel camshaft 285° asymmetrical rockets from 745 turbo special cylinder head gasket turbocharger KK 27 with primary and secundary fans for more air volume maximum air pressure 1,0 bar bypass valve changed for regulation (regulation system from Alpina B7 turbo/E28) radiator with a high capacity net and changed water boxes original visco fan swoped with an electrical fan from the 750i water pump with better ballbearings and another paddel wheel (one paddel more) V-belt disc on the waterpump selfmade (diameter 122 mm/aluminum) injection nozzle with copper core (for a faster response time) fuel pressure 3,8 bar thermostat case changed gearbox: ballbearing seats milled bigger for bigger ballbearings, 5th gear ratio 0,81 diff: oilcooling selfmade, LSD 75%, ratio 2,93 (selfmade) trigger box programme changed combustion chambers milled hemisphericaly Wheels / Tires three piece BBS wheels: front 16x9 ET8 and 225/50, rear 16x10 ET11 and 245/45 Tires: Pirelli Zero Assimetrico Suspension dampers: Koni special with stronger bottom valves (adjustable) and shorter pisten rods springs: H&R, pressed ca. 15mm and hardened (center of gravity deeper) adjustable sway bars Brakes brake discs in the size from the B7/turbo brake servo system from E28/M5