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  1. E30 M20 engine variations

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi all, just wondering if any of you know the meaning of the 256e* at the end of the engine ID m20 b25 256(e1) (ex) or (e2) Im ordering some intake valves from AutoDoc (polished the black heat coating off!!!) & they have asked me to confirm compatibility
  2. M20 323i valve train

    Introductions
    Hello BMW experts. Need a bit of advice. I run an M20 323i motor in my kit car. I am currently refurbing the head and replacing the cam and rockers. Valves are all good. Before I took it off the car I was experiencing valve bounce and loss of power well short of max revs so I thought I would...
  3. E30 M52B28 - Swapping back to 325i M20?!

    BMW Engine Conversions
    Hi All, This thread may be a little bit of an oddity, I don't know, but here goes! I might need a bit of a sanity check as well :hihi I've acquired an E30 325i MTech2, it's been modified a bit (top end coil over suspension, adjustable trailing arms, M52B28 swap, stripped interior, banded steel...
  4. FS: ARP BMW 2.5L E30 M20 6cyl head stud kit - TMS Motorsport

    TMS Motorsport
    More great items brought to you by: THE MOFF SHOP / TMS MOTORSPORT FS: ARP BMW 2.5L E30 M20 6cyl head stud kit Product Code: 201-4305ARP BMW 2.5L E30 M20 6cyl head stud kit Price: £224.10 Price (inc. VAT): £268.92 Please see the website for more photos and details... Email us...
  5. m20 this looks like a leaky head gasket to me

    BMW 5 Series Forum - Technical Talk on the BMW E12
    had this car a couple of months now, just got it starting and running good but have always had this oil leak. when i changed the cambelt on it not long ago i also changed the cam shaft seal as this is what i was hoping that the leak was. the leak is still very much apparent and i was then...
  6. 525 m20 into 520

    BMW 5 Series Forum - Technical Talk on the BMW E12
    i am looking into swapping a 525 m20 engine into my 520(slug). would anyone know if there is any conflict with using the rest of the 520 drive train? autobox and diff etc? would be good to know but its hard to find any info out there because most sensible people would be putting an m50 vanos...
  7. cambelt time!2.0 M20

    BMW 5 Series Forum - Technical Talk on the BMW E12
    its on 89,000 miles and the cam belt only has 10,000 miles on it ....thats 10,000 miles in the last 15 years though : / just starting a thread so i can harass people during the course of the day/weekend when i get stuck lol
  8. m20 performance camshaft

    BMW Tuning Forum
    Hi does anyone have a performance camshaft for a m20 2.5 for sale Thanks
  9. m20 performance camshaft

    BMW Garages and Parts Retailers
    Hi does anyone have a performance camshaft for the m20 2.5 engine they Wat to sell Thanks
  10. BMW e36 328i M20 clutch set-up

    BMW 3 Series Forum - Technical Talk on the BMW E21
    One of these problems is what I believe to be the dual mass flywheel. The car at 900rpm vibrates and then again at 1900rpm, this is both in neutral and in gear! The engaging of gears is not affected and the car drives fine. So could anyone confirm from experience if the flywheel is at fault? Or...
  11. M20 to M52 (again, sorry! Clarity needed)

    BMW Engine Conversions
    Hi all! Got my first E30 today! A 318i Lux, and lovely she is too. Originally I intended on getting a 318is because I assumed I wouldn't get insured on anything quicker (I'm 22) but I couldn't wait to find one and they're outta my budget. I then found out I could get insured on anything up to...
  12. E21 m10 & m20 5 speed gearboxes wanted

    Items WANTED - Post any wanted adverts in here
    Hi, E21 M10 & M20 5 speed gearboxes wanted. Thanks, Joe
  13. E30 325ic M20 engine starting issues

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi from Australia Currently I have an E30 325is 1988 model and a E30 325ic convertible M20 engine I have starting issues on both cars. The Automatic E30 325ic M20 has had a new starter motor fitted some time back approx. 6months ago and engine started fine, however I now have starting...
  14. '92 e34 M20 - cruise control ecu plug pinout?

    BMW 5 Series Forum - Technical Talk on the BMW E12
    I'm trying to retrofit a cruise control into my e34 M20. But, unfortunately, the original connector and harness got damaged and I need to manually connect the wires to a similar connector. I got the another connector with the same number of pins(26),but the colors don't match. So, is there a...
  15. 89 325i rich at idle, PLZ HELP!

    BMW 3 Series Forum - Technical Talk on the BMW E21
    hey everyone, I just got an 89 325i e30 with the M20, I am having trouble with smog due to high hc at idle (running rich) once the idle is brought up to 2500rpm it leans back out and is fine. It also tends to start hard and jus crank for a long time until u give it some gas. I have tried a few...
  16. 89 325i New member having issues runnung rich at idle

    Introductions
    hey everyone, I just got an 89 325i e30 with the M20, I am having trouble with smog due to high hc at idle (running rich) once the idle is brought up to 2500rpm it leans back out and is fine. It also starts hard once it is hot I have tried a few simple fixes/ probable causes for this issue...
  17. 1992 E34 M20 - cruise control install?

    BMW 5 Series Forum - Technical Talk on the BMW E12
    This car, which is E34, was previously M30 and now it's converted to M20 engine(it has full equipment: including the board computer). During the conversion to M20 engine, all electric equipment was preserved (everything's in function) except the cruise control. The car's electronic box with...
  18. e21/e30 2.7 M20 Long Stroke Conversion

    BMW Engine Conversions
    I have a 1982 BMW e21 323i which I'm rebuilding (long story). I was previously into e30s and collected the bits I needed to build a 2.7 as follows M20B25 Block and pistons with matching 885 head 324d Crank and conrods (forged, stronger crank) Shrick cam (can't remember which one but it's the...
  19. slightly mental M20 I have been working on

    BMW Competition Corner
    M20 with M52 2.8 crank and rods, 14.5:1 compression, VERY worked head (by the same guy that did my M3 head), custom camshaft, triple Webers, E85 etc Rob's 2.8 E30 - YouTube
  20. M20 engine coolant pressure tester

    General BMW Discussions
    Hi I'm losing a little coolant from my 1995 525ix saloon and trying to find a suitable coolant pressure tester online but not having any luck. Can anyone recommend and give me a link to an inexpensive tester. Thanks in Surrey uk btw.
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