[mattyfargo]

My 2011 e90 n55 has 120k miles. It currently has FBO (5inch intercooler, catless downpipe and muffler delete(Still has secondary cats), aluminum charge pipe, cold air intake, and currently running MHD 2+) Manual transmission

Ive purchased a pure500 turbo, ACL Rod bearings, upgraded coil packs, step 1 colder NGK spark plugs, Stage 1 LPFP from Fuel-It, and a Spool 150 Stage 1 HPFP. I may get a oil catch can, but i've read their not entirely necessary. I am a technician for BMW (almost 2 years experience and 2 years of schooling) and plan on installing them soon.

This is my street car, and of course I must pass my yearly emissions inspection.

I dont have any experience with tuning aside from flashing my car MHD with a tablet, and my biggest concern is figuring out the tuning situation.

My goal is 500whp or around there, and have read that n55 rods can handle that, but I am reinforcing the bearings just to be safe (Never been replaced and still no issues)

How should i get it tuned? Do tuning companys just throw my car on the dyno and use their own platform and ECU to configure boost pressure and A/F ratio? I heard that you can send your logs to MHD and they can make you a custom map? How reliable is that? Can they really just make you a tune without dynoing the car? I live in Massachusetts and am willing to drive just about anywhere to have my car tuned properly after the mods are installed.

I also have stage 2 nostrum injectors that im not sure i want to install. I read they must be tuned for the vehicle, but if I flash it back to stock for my yearly inspection, will the car not run properly with the Stg2 injectors? Will i have to swap the injectors yearly?

That was a lot but let me know if you can answer any of those questions, thanks

[E46driver]

Update this thread I’m interested in pure500 results as well on e9x platform

[mattyfargo]

Originally Posted by E46driver

Update this thread I’m interested in pure500 results as well on e9x platform

What do you mean update it lol im new here.

[minulache]

In the sense that he wants to know the outcome. I am also curious about the results, as I want to do something similar.
Tuner wise, you can contact David Shoup, I heard he is very professional. You can book a dyno day in your area so you can test it also on the dyno

[fastboatster]

if your car is 2011, then Spool HPFP won't work for you, it's only for 2012+ cars with late style hpfp, your car has an N54 hpfp. Nostrum injectors might not work, at least I haven't seen any N55es running them.

[wheela]

I've emailed Nostrum two different times to ask if their injectors work on e-chassis, since they don't list n55e on their website. I didn't hear back either time. Long way of saying that I don't know if they'll work either. However, I don't think you'll need bigger injectors for your goals.

If you're n54 style hpfp, a proven option is the PFS POD hpfp overdrive. Also, Hydra just came out with this option which seems like the best way to overdrive the hpfp, but it's so new I haven't come across any independent results yet. This is probably the route I'd go if I had the n54 style hpfp:

https://www.1addicts.com/forums/show....php?t=2121236

https://www.spxxlstreet.com/threads/...verdrive.9698/
(Replace xx with oo)