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  1. E46 General
    Hello all, I plan to put the new m54b30 engine into my 325ci this weekend. In preparation, I called my local BMW dealer (Gebhardt) and they quoted me $320 just to reflash the DME for the 330 software. I ordered the INPA cable and was wondering if this is something I could do myself? I have a...
  2. Southeast
    Hello I’m looking to swap a M54B30 engine into my 325ci and I wanted to see if anyone on the forum knew someone reputable in/around Atlanta that had some for sale. Or at least had some great knowledge on swapping a B30 into a 325ci. I’ve been reading previous forums and watching Youtube...
  3. E46 General
    Happy Holidays forum, While rebuilding my M54B30 I noticed some small hairline cracks on the outside. I was wondering if this was normal or need to replace ASAP. I don’t have much options for new engine because I live in Hawaii and lots of sellers don’t ship to Hawaii or it is so expensive...
  4. E46 Introductions
    I just bought this 330Ci off craigslist for $2800. The exterior and interior are in relatively good shape, with the only problems being a broken center console, stereo, and shift knob, and some damage to the front bumper (so far). The leather seats are cracking but I dont really mind it and what...
  5. E46 General
    This is going to be a long one, but I'm going to try and explain my problem as best as I can. To start, I have a 2002 330ci 5MT with an m54 from a 2005 330i (done by the previous owner), 3.64 LSD from a ZHP, and some other minor modifications. I'm unsure if the DME was swapped to MS45.1, but...
  6. E46 General
    Hey everyone, Been having this issue with my M54b30 for awhile now and it only happens at idle. I know it's probably a vacuum leak somewhere but I wanted to know if anyone could make anything of this data. I get the normal P1085/1083/1074/1071 codes associated with a vacuum leak, but I don't...
  7. Driveline, Performance, Tuning
    Just bought me a cheap chassis mount shifter for my engine swapped bmw 328, and i forgot that i need to change the trans and engine mounts before hand to some less soft ones, wich ones would yall recommend that arent expensive..
  8. Engine Swaps
    Hi guys, Been rebuilding a Z3 with the M54 3.0 swap. Guy who swapped engine before me did a piss job..... Anyways.... Which MAF are you guys using? I have two different brand new MAFs already but not sure if they will also work with the m52tu TB...
  9. Engine Swaps
    I got a good deal on a low mileage 3l engine from a wrecked z3 of the same year and I want to make sure that all the mounts are the exact same. Both cars are automatic and I know I’ll have to switch over oil pan and get a 330xi tune
  10. Engine Swaps
    Basically i have a m52 out of my 99 328i which has a rotted chassis and torn subframe. I bought a 03 330xi auto with a blown motor and want to swap the m52 and manual trans into it, will i be able to keep the cable driven tb or will i need to convert the m52 to the m54 accessories and intake?
  11. E46 General
    2003 330Ci. Ive been having a problem maintaining a consistent oil level for more then 100 miles. Id like to preface that the car has no leaks and I’ve never noticed blue exhaust. I know m54 engines are prone to burning oil because of their piston ring design, but the oil drain Im experiencing...
  12. E46 News
    Word around different E46 rebuilding mechs has it that the perfect combo for your M54 engine rebuild is using the MAHLE pistons fitted with Goetze piston rings. However i haven't found the ultimate review on the piston Rings themselves (Mahle vs goetze). Why would one use Mahle pistons with...
  13. Driveline, Performance, Tuning
    Just wondering if anyone here has done something like this as I cant find a thread... I bought a 2002 325ci MT (without doing my research first) and thought I could turn it into something with a bit more power until I could come up with the money to either turbo or SC it. Still waiting on the...
  14. Driveline, Performance, Tuning
    Right guys, I am going down the ITB route and posting this for those who want to do the same. To start with, you'll need an S54 to M54 adapter plate. This allows the ITBs to be butted to the head. Speak to Hopwood motorsport. Then you'll need some S54 ITBs. Get on ebay or M3 breakers. With mine...
  15. Driveline, Performance, Tuning
    Hey guys this is my first post on here, I'm strongly considering building an M54B25 into a low compression engine for high boost applications. I can't find anywhere the differences between B25 and B30 pistons. The only thing I know is that the B30 pistons are lighter, would the B30 pistons in an...
  16. E46 General
    05 330xi Hello sorry if this has already been asked. I looked at a few topics but I'm not sure which part to replace first, I ran the INPA test and the fan powers on fine but not at startup like it's supposed to and at idle it overheats after like 15 minutes or so. The thermostat seems to work...
  17. E46 XI
    Im looking to make around 500 horsepower (and eventually more) with a 330xi and the stock tranny can only handle about half of that. Im hoping for some recommendations and tips on transmissions that can handle the hp and the awd.
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