n54

Quick writeup on my misadventures dealing with this stupid fault code A few months ago I got randomly code 2E7C BSD comms fault. Cleared it, went away. It would come back and eventually got worse from intermittent to present all the time. It can be a royal PITA to diagnose especially if it's...

I wanted to talk exhaust theory and get some opinions from people: I've been reading a lot on these forums and it seems that most people are content with the stock exhaust (modified or not) or go with single 3" systems. This kind of bothered/confused me because I always read that the lower the...

Disclaimer: this thread not meant for debates on whether there are any hp gains from spark plug indexing When it comes to spark plug indexing I've heard 2 different "correct" ways to do it. Gap facing intake, and gap facing exhaust. Traditionally, domestic guys and NASCAR race teams have...

I have been slacking getting around to posting on this forum, so let me give a quick synopsis of my N54 experience thus far. Almost a year and a half ago I finally found the e92 335i I had been relentlessly searching for. It was in Ga (I live in Fl), but that didn't matter to me. 6spd MT black...

Hey guys. I'm not really in a rush to sell it, but life and other circumstances are forcing me to re-evaluate my current situation. Please no crazy low offers. I stand to make absolutely nothing from selling and I am at a loss overall considering all the money I put into it after I bought it. I...

Doing my weekly ECS stalk and noticed this: https://www.ecstuning.com/b-turner-motorsport-parts/n54-aluminum-coolant-expansion-tank-relocation-kit-335i/021942tms13~a/ $500 for the whole kit Been waiting for an update on the docrace concept ones for a while, this was a nice find. For anyone...

Alright I’m hopping back into the forum life, something which I haven’t been a part of since I used to ride motorcycles. Recently took the plunge and picked up a car I’ve wanted for a long while now. I’ve wanted an E61535xi ever since I ran across several build logs years and years ago. Well...

FS: Refinished style 162's asking $650 obo (local pickup preffered, will ship) WA

Hello everyone, I thought I'd take some time to share a build a friend and I have been (slowly) working on since the beginning of this year (2018). I actually tried to make this thread on another forum sometime during the summer, but my post ended up being eaten, and I didn't have the...

This user has been asked to not distribute any software on this forum until further notice. Many claims have been made and it will take time to fully investigate. FREE CUSTOM MAPS Includes: IJE0S Stock Turbo, Hybrid Turbo, ST, and ST with BB(Boost Setpoint x RPM) I8A0S: Stock Turbo, Hybrid...

I’m making this post to warn people about RFP Tuning (aka Dean Fuhriman), who has been “tuning” for the N5X community now for a few months. He has a history of screwing up people’s cars, and even bragging about it on Facebook. My first experience with him was Sept 16 when I inquired about his...

Hey guys, new here but have owned my 335i for a little over a year. Currently I'm in the process of building my motor, waiting on machine shop. one question I do have is this: I want to run the prometh direct port water methanol kit, but in doing so I was told to get the ProMeth pump, lines ...

The number of Chinese racetracks is increasing, making it one of the most exciting countries to visit as a driving enthusiast at the moment. Below is a list of tracks from just one track builder in China (there are others as well): I have spent some years living as a foreigner in China, and...

JB4 Port Injection Control Module Good working order $225

$1,000 SHIPPED* or best offer. (*within the United States, international shipping may need extra shipping costs.) I have a brand new set of RB turbo CHIRA's that I transplanted into my OEM manifold and charge housings (housings have 70k miles on them and flawless). These are front and rear as a...

I finally got my single turbo running right a few days ago. Yesterday the car went back on the dyno, I hooked up my laptop and and sent it. Mod list: Gen2 6266 dbb, Doc Race turbo kit NTK pre-turbo O2 sensors with Innovate Motorsports venturi heat sinks DIY twin 450 LPFP, 15 psi hobbs MMP Gen1...

The tables have me confused. Do I change the "158" value in one table? both? Which one? Thanks

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Selling my very clean N54 long block. Came out of my 2009 135i that was totalled out because of a sode impact :(. I have tons of service records and what not to prove the 73,000 miles including a video of it running and idling smoot after the acvident and it pulled. Has a newer valve cover...

So, it's been almost a year since I got the PD unit and installed xHP...over all the PD unit shifts smooth on the PD stock flash but does jerk/lurch and hesitate when using Stage 3 xHP. Clemens said it was due to power levels but mine was the first with any issue with PD and xHP. I been trying...