n54

I have recently installed precision raceworks coils onto my N54 and have been getting misfires Im FBO excluding a cat back exhaust i also have 94 octane in the tank

Un-boxed my Stage 3 Twin Disc Clutch AND my Upgraded Twin Turbos recently from GotTuned all the way in Poland. Very exited to try these out. Clutch looks like something you might find out of a spaceship :tearsofjoy: Figured I'd check out what the Euro market was up to since most build I know of...

On my last car, even though the 2nd cat codes were turned 'off' I needed the o2 sensor installed and plugged in to maintain proper fuel trims, not only did it need to be there but it could not be in a 'extended o2 tricker' housing. Had to be in the exhaust flow directly. I would get +12%-+18%...

Greetings! I have an N54 that we don't really know the history of. Yesterday, we fired it up for the first time in our build and it seems the HPFP is completely dead. And by dead I mean the rail pressure was no higher than the low side pressure, at idle. From what I've read online, people with...

First time taking codes from the 08 335i I just picked up ‍♂ Was told it had bad fuel injectors. Barely could touch the throttle at first and didn't wanna idle smooth at all until it warmed up. Ended up changing bank 1 plugs, coils, and injectors..Definitely made a huge difference. Links below...

New to Bmw always see a few guys with modded 1 and 3 series in Sacramento.who else is around?

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