I would not recommend any china headers on M54, that is because M54 lacks all of the studs. Use 96-99 M52/S52 tubular manifolds, some euro models came with these on their M54. You won't be able to use M54 manifolds, even if you could, they are very restrictive. Plastic clip that holds the brake line behind the booster had to be trimmed down.
DME MS42 PINOUT MOD
Had to mod the rod that pushes master cylinder, I had to extend it, welded 7mm rod so that is at same height as E30. Modifications needed: Rod must be cut to size then rethreaded or to me it was more easy to just cut it and weld on the E30 adjustable end to it. Brake booster manufacturer and manufacturer PN or identifying marks: Stock VW, ATE brand Brake booster part number: W01331598294ATE E21 booster will clear but the master cylinder will touch the intake boot. Steering feel is great, little stiff at stand still. You will have to buy some oil resistant hoses there, I don't use power steering, I manualised my E30 rack, and I am happy that I did. E46 location can be used, so that it fits on the oil filter housing, then run the lines down. Use the quick connects from the E46 thermostat hoses, then cut the clamps and remove the E46 hose from them. Use gates 21900, then cut to fit, you get lower and upper hose. I am using 318i radiator with one inch trimmed E30 mechanical fan.
DME MS42 PINOUT INSTALL
You can use quick connect, just cut the clamp and remove the hose, then install what ever length you need to what ever radiator option you want to use. I just plugged up the rear plastic heater line. I did not use the heater option, I live in hot climate. You would have to make to install a T and then route it to the heater core. There is only one heater line in the back of the M54 engine, the other line comes from a T on the E46 radiator. Fuel filter can be secured with a bmw thin hose clamp, just loops around. It is quick connect but you don't need that, you can force the 8mm pressure fuel hose on to the rail line then above the notch put a clamp. And fuel line from the fuel filter goes to fuel rail. The the vacuum hose from the oil separator goes to pressure regulator. I moved mine where ABS pump sat, but I don't have ABS so you will have to find room for it. On M54 fuel filter has integrated fuel pressure regulator. Scroll down to another post where I got better solution for this. Similar procedure is done for S52 OBD2 swap. E34 dipstick with added nipple that you will have to remove from your M54 dipstick, then make a proper measurement then weld it. (They are not interchangeable without modification due to different oil pump & deflector designs.) For January 2000 and newer engines the oil deflector (or windage tray) is also required unless you want to modify your existing one like jjt did. The pickup tube for engines made before January 2000 is part number 11411432735. The pickup tube for engines made beginning January 2000 is part number 11417503261. M54 oil pickup tube is easy to mod, cut the tube right where it comes out the oil pump just to give you enough room for weld, then cut the tube right before it starts making a bend towards snorkel, remove the tube when cutting, then clean it, install then make measurements so that the snorkel fits properly inside the E34 oil pan. If you get older E34 oil pan, you will have to remove the integrated oil baffle. I prefer the 1995 E34 oil pan, the baffle is separate, you will have to use the M54 oil baffle then brake off the oil pickup tube mounts. You must use your M54 oil pan then mod the M54 pickup tube. I was able to get one from 2001 X5, complete for cheap but it had a missing DISA valve, that is expensive and you want to get one with good DISA valve and alternator. If you get one from 330ci/I then you will have to get engine harness from 5 series. They are made from 2001 to 2006.īest is to get M54 from 2001/2002 530i or X5, they will be less abused and engine harness will be long enough for the DME to fit above the glove box in E30. This engine is nice and smooth running with original MS43 engine management. M54b30 is a great engine, its not all about peak power. Here is how I swapped M54B30(or M54B25) into 1986 E30, I will only cover information that is different than M50 installation.
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