1. M

    Howdy! (N54 swap research)

    Hi there! I'm here to research for my upcoming n54 swap and to learn all things boost! I currently have a 2005 bmw 330xi (e46) that's basically stock apart from the custom long travel coilovers, custom built winch bumper and roof rack, full underbody skid plates, 4.44 diffs, and 30in...
  2. odesh

    Starting a single turbo 335i build. Advices and ideas are welcome.

    Hi, And hello to everyone on Spoolstreet. My beloved 335i n54 has come to the point of 100k miles and it's time to move on from twins. I'm planning to move to Doc Races bottom mount single turbo kit with 6266 gen 1. I try split my typing into segments, so I can explain everything I will do as...
  3. BSlothed

    Technical (Apart of VANOS issue) Oil Housing not draining properly

    Hey all, I know I might sound like a broken record, but I am still trying to figure out my 2A87 / 3100 errors and it is driving me nuts. I have run though a whole bunch of advice from this forum now and am just about out of ideas without it settling on being a cam ledge issue that I still don't...
  4. B

    N54 timing corrections help please!

    Hey guys! First time poster here, to start I have a n54 with a doc mount 6266 top mount kit. I was hoping I could post my logs here and see if anyone could help me figure out why I have so many timing corrections . The car is JB4 with a JB4 bef , fuel is full e85 although the pump I go to only...
  5. suspenceful

    Video My $3,500 335i is WAY Faster than I Expected

    I recently gambled on a 335i from across the country for only $3,500. Once it showed up, I realized it had 19T turbos, FBO, inlets, outlets, etc :fearscream: Enjoy my buddy and I's first reaction once we realized how fast it was...
  6. A

    N54 PCV/OCC (Oil Catch Can) set up for M18 VC (valve cover) on my 335IS

    So once I realized the dilemma of needing oil catch cans after installing the valve cover. Due to there being no cyclonic separator, as well as not being able to reuse the OEM PCV or CCV (Crank case vent hose) as the 2 ports (high/boost and low/vacuum) on the M18 VC are both just -10AN. I then...
  7. plzmove

    Single Turbo 135i build process

    I've finally started to install my Speedtech kit on my 1er. I figured I would post some progress pics alongside asking for some advice. What vacuum lines are recommended by other st owners? Do I leave both waste gate solenoids connected but out of the way, I have a 3 port Mac but no use as I am...
  8. Jon1998

    Technical Maxxecu / dct swapped e90

    After successfully completing my DCT swap on MSD81 and pushing my unopened 199xxx mile n54 to 700hp on stock clutches. I did a 5.84 second 60-130 dragy time and had a lot of fun rolls on the street with all the stock bmw components. I never got to post my 2 cents on what it took to swap the...
  9. D

    How to extract and save custom tune for later MHD flashing?

    Hey all, hope someone can chime in Bought a used hand 1M that came with a custom tune. Am going to experiment with MHD, but would also like to keep the custom tune available in case I want to just stick with it if the OTS maps aren’t better. MHD uses a generic stock file when flashing back to...
  10. O

    SOLD BMS Methanol Injection kit with AEM controller & CM10 nozzle

    In great working condition. New meth kit alone without aem controller goes for $568. Asking 390obo. Buyer pays shipping
  11. S

    Looking for the best head studs for boost on a n54 . I’ll pass on Vargas looking for a big stud kit.

    Fully built motor just getting the last few pieces before I assemble it.
  12. ramboz

    miss on acceleration only on MHD stage2+

    hey i am in FBO my spark plugs and my coils are new, but I never changed my fuel pump my injectors have 40K kms - DME active codes - 29CC - DME: Raté de combustion, plusieurs cylindres. (DME: Combustion misfires, several cylinders.) 29CD - DME: Raté de combustion, cylindre 1. (DME: Combustion...
  13. N54_XXX

    Project: RFP Stage 2 ans Stage 3 OTS Maps as Map Switch Tune

    Hey Guys, I am trying someting with the new MHD+ Suite, I want to create a RFP OTS Map Tune as MapSwitch Option RFP Stage 3 V12 will be Map 1 RFP Stage 2 V12 will be Map 2 and Map 3 will be Stock don´t have time to test it today but in the next days I will test it and do some loggs. Will...
  14. Alturiak

    Ignition Coil Electrical Socket (Engine Harness Connector)

    Does anyone know where I can find the information for the ignition coil engine harness electrical connector, part number 12-52-7-519-996? I'm specifically trying to obtain it directly from the manufacturer. It appears to be the Lear Corporation, but I can't find anything that can direct me to...
  15. K

    Misfire on Cyl 4

    2009 BMW 335XI So recently I've been trying to diagnose my misfire on my N54, I have swapped coils, spark plugs, injectors, changed injector seals, decouplers. My car is still misfiring at idle and under 100% load for some reason and I don't know what to change or what to swap anymore. If...
  16. ShadyOrb

    Single Turbo & 91 Octane - How much boost?

    I just finished my single turbo conversion a few weeks ago, and I want to turn up the boost. Currently with 14psi springs I get ~11psi w/ JB4. Map2 is 17psi and I'm not sure if that is safe as I only have 91oct available. - What is a safe level of boost on 91 octane? - Also, for JB4 Map6 can I...
  17. CantSitStill

    Weird starting issues on custom flex map (with 0% ethanol)

    I posted this on the end of another thread but it was buried at the end and I'm getting desperate. Hopefully someone can suggest something to look at be it hardware or in the tune. I'm having weird starting issues where it wont start or the HPFP is taking ages to build up (i can see that...
  18. ShadyOrb

    DocRace 1 Piece Install Trouble

    Hello, I'm trying to install the Top Mount DocRace kit. I can't get the manifold installed, it won't fit between the chassis and the engine. I ended up banging up some of the exhaust manifold gaskets fighting with it. Are they still okay to use? No cranks, just dents etc. Anyone with...
  19. 4

    N54 stage 3lpfp no power through EKP

    Having a weird issue hoping I can get some help! 2007 N54 E90 single turbo with dual walbro 450s. Car ran fine for few weeks, never left garage just short start ups while worked on other things. Then one day would crank and no start. Lpfp is not getting full power. Ive tried 3 EKP modules (coded...
  20. G

    E9X Buy `Garett` turbo from official source

    Hello everybody, Where it is possible to buy `Garett` turbos ? I think it is not possible from official website. Does anyone have an experience of this ? I found full-race.com. Is this trusted source ? Someone has an experience ? In general turbo has a warranty ? I have never bought turbo...