135i Turbo Engine (N54 / N55) *General Questions Thread*

[Alexim]

bryce fantastic post man.. i really appreciate that you take the time to answer even some old or obvious questions without being sarcastic or anything.. thank's a lot

[bryce]

thanks

[Colt]

Installed the ER charge pipe today and took all the stock diverter piping out and noticed there was a decent amount of oil in the piping. Is this typical or is this something I need to worry about?

[bryce]

Originally Posted by Angerman

Installed the ER charge pipe today and took all the stock diverter piping out and noticed there was a decent amount of oil in the piping. Is this typical or is this something I need to worry about?

yes, it's normal. oil blow-by. you can get an oil catch can to reduce the amount of oil blow-by. the bms one is the only one i'd run. i haven't bought one yet, but i plan to

[1Fasst1]

Originally Posted by bryce

yes, it's normal. oil blow-by. you can get an oil catch can to reduce the amount of oil blow-by. the bms one is the only one i'd run. i haven't bought one yet, but i plan to

I two like the BMS occ,but I really like the hoses and connectors on the HPF can. Hower I do have some concern about it being mounted in the turbo area as some claim heat will effect the performance of the can. As HPF is known to produce quality products are there any basis for for being concerned about the mounting location ?

[bryce]

Originally Posted by 1Fasst1

I two like the BMS occ,but I really like the hoses and connectors on the HPF can. Hower I do have some concern about it being mounted in the turbo area as some claim heat will effect the performance of the can. As HPF is known to produce quality products are there any basis for for being concerned about the mounting location ?

hpf does have nice fittings to snap into the stock ones. i wouldn't mount the occ above the turbo's though. that's one of the reasons the bsh occ sucks. it needs to be mounted where there's a lower temperature. that's why ar design's is mounted up front on the power steering reservoir. the bms one is mounted under teh cowl, which should still be a relatively cool place

[Colt]

Originally Posted by bryce

yes, it's normal. oil blow-by. you can get an oil catch can to reduce the amount of oil blow-by. the bms one is the only one i'd run. i haven't bought one yet, but i plan to

I was thinking getting an oil catch can will decrease this a little; so I plan on doing that as a next mod. I just wanted a little reassurance. Thanks for the reply.

[TZANIDO777]

I installed the Berk catless downpipe on my car the other day and I dont think I got the clamp on the top part of the downpipe on the right way. First thing I noticed when I drove the car after install was loss of power, not complete loss of power but definitely some power loss. Do you think I can be losing power from an exhaust leak? Or maybe when I was installing the sensors from inside the engine bay, I could be getting a boost leak?

[bryce]

Originally Posted by TZANIDO777

I installed the Berk catless downpipe on my car the other day and I dont think I got the clamp on the top part of the downpipe on the right way. First thing I noticed when I drove the car after install was loss of power, not complete loss of power but definitely some power loss. Do you think I can be losing power from an exhaust leak? Or maybe when I was installing the sensors from inside the engine bay, I could be getting a boost leak?

do you have any codes? that would help diagnose what the issue is. exhaust leak could cause a loss of power. are you running a tune?

[TZANIDO777]

Originally Posted by bryce

do you have any codes? that would help diagnose what the issue is. exhaust leak could cause a loss of power. are you running a tune?

I did get a SEL light on my way to the mechanic but when he checked it he said there was no code. I do have a tune, I have the jb4 for the n55 engine, I turned it off on my way there so I was running stock boost the whole way when the light came on. The light probably came on because I have a catless downpipe in.

[bryce]

Originally Posted by TZANIDO777

I did get a SEL light on my way to the mechanic but when he checked it he said there was no code. I do have a tune, I have the jb4 for the n55 engine, I turned it off on my way there so I was running stock boost the whole way when the light came on. The light probably came on because I have a catless downpipe in.

well, something's not right. if you're tuned, a downpipe will add noticeable power, not a loss. double check that there's no exhaust leaks, and make sure the wastegate arm can swing back and forth freely. on n54's, the downpipe clamp can block the wastegate arm. i'm not sure if this is the case on the n55, but it's worth double checking

[TZANIDO777]

Originally Posted by bryce

well, something's not right. if you're tuned, a downpipe will add noticeable power, not a loss. double check that there's no exhaust leaks, and make sure the wastegate arm can swing back and forth freely. on n54's, the downpipe clamp can block the wastegate arm. i'm not sure if this is the case on the n55, but it's worth double checking

At the moment the car is at MAC here in NY, after the install and the noticeable power loss I gave the car to them maybe they can fix it. Thanks for the help Bryce, appreciate it.

[bryce]

Ttt

[icabod7]

Bryce, quick dumb question. I know best practice is to warm the car up (i.e. drive it until the oil temp needle starts to move up a few ticks) before you do any spirited driving and get your rpms above 3k. But if, after the car has been sufficiently warmed up, you turn the car off and then come back to it after 5-10 minutes and the oil temp gauge still shows a warmed up oil temp can you continue to drive the car spiritedly?

[BMW86]

Originally Posted by icabod7

Bryce, quick dumb question. I know best practice is to warm the car up (i.e. drive it until the oil temp needle starts to move up a few ticks) before you do any spirited driving and get your rpms above 3k. But if, after the car has been sufficiently warmed up, you turn the car off and then come back to it after 5-10 minutes and the oil temp gauge still shows a warmed up oil temp can you continue to drive the car spiritedly?

Yes

[Colt]

Originally Posted by Alexim

bryce fantastic post man.. i really appreciate that you take the time to answer even some old or obvious questions without being sarcastic or anything.. thank's a lot

bryce ftw

[bryce]

^thanks

[bryce]

up

[Phlonx]

Just got JB4! Best order in which to do these next mods? (N54)

FMIC - DPs - BOV+CP - Meth

Thanks!

[John Dempsey]

Originally Posted by Phlonx

Just got JB4! Best order in which to do these next mods? (N54)

FMIC - DPs - BOV+CP - Meth

Thanks!

Dp then fmic then cp and bov then meth!!

[bryce]

Originally Posted by John Dempsey

Dp then fmic then cp and bov then meth!!

i agree, but i think either dp's or fmic should be the first mod. both mods are multi-beneficial:

-dp's put less stress on the turbo's, reduce heat (which can cause turbo's to wear faster)
-fmic reduces IAT's, which can reduce knock and timing pulls, keeping the engine operating safely and keeps temps down

both mods add decent amounts of power and let the user run a more aggressive map (on cobb, procede, or jb4 at least)

[AudiKiller]

Any thoughts on this? The catless downpipes from cp-e are only for the n55 and I am gettin the twin turbo n54.

http://www.**********s.com/Titek-Downpipes-N54.htm

Also about how much would a shop charge me for an install???

Thanks