E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 Reliability (rod bearing problems?)



Reply
 
Thread Tools Search this Thread
      08-24-2018, 02:13 PM   #287
Bours
Lieutenant Colonel
Canada
108
Rep
1,653
Posts

Drives: 2011 335i x-drive LCI sedan
Join Date: Nov 2014
Location: Montreal

iTrader: (0)

Quote:
Originally Posted by Bigugly View Post
i dont need to explain volume efficiency and how a (correctly) ported head benefits practically any engine, there's countless google topics you can read up on that.
But any time you help stop a bottleneck, it helps overall.
ok found the convo with MMP they said ported head is very good and nets 30% more flow

i asked for ferrera valvetrain and they said i could rev to 8200 rpm with it on a n54 but not sure on a n55 what the dme limit is...

they said no point in doing valves if not doing ported head...


valvetrain upgrade nets only 4% more flow vs 30% for ported head..

they recommend i only do this if going huge turbo and bigger power goals....

Appreciate 0
      08-24-2018, 03:55 PM   #288
Bigugly
sheesh!
Bigugly's Avatar
United_States
12
Rep
193
Posts

Drives: 2015 M4
Join Date: Apr 2012
Location: Houston

iTrader: (2)

Not to add fuel to the fire but, they've never posted N55 flow numbers.
They don't have N55 valve train. We're the only company that's developed it. I won't keep beating a dead horse (like them using Chrysler head studs, then switching to a stud with a spacer for drop in installs- the same thing they tried to say was "silly" with our set lol)
I digress- have a great weekend, folks!
Appreciate 0
      08-24-2018, 04:02 PM   #289
biz77
Lieutenant
76
Rep
494
Posts

Drives: e90
Join Date: Aug 2010
Location: Spokane, WA

iTrader: (4)

Quote:
Originally Posted by Xdrive35i2014 View Post
If going for a head ported job, what are some highly reputable shops? ABR, vacmotorsport?
I cannot make a recommendation. I know who I would steer clear of. If I needed an engine built, it would be done locally by a friend and 20-year ASE-certified mechanic who is an avid racer, race car builder and has worked on practically everything with an engine that doesn't fly.
Appreciate 0
      08-24-2018, 09:19 PM   #290
Xdrive35i2014
Private First Class
27
Rep
188
Posts

Drives: X1 35I
Join Date: May 2016
Location: Canada

iTrader: (0)

Quote:
Originally Posted by Bigugly View Post
You're kidding me, right?
That's ridiculous lol
Our N55 head flows nearly identical numbers as our N54 head, and they make 650hp at 23psi, and over 800 at 30.
We run out of octane with 93 at 16-17psi, vs a stock head at 19 on a single turbo.
A stock head makes 650hp at 30psi, for reference
Damn, that's impressive. Are those numbers quoted at the wheels on the stock turbos?
__________________
Mod List: JB4, XHP3, ER Charge Pipe, Performance Line catless downpipe, ER Competition FMIC, Pure Stage 2 Turbo, N55 PURE High Flow Inlet Pipe, N55 Diverter Upgrade DV(Plus), Gruppe M intake
Pending mods: Supersprint muffler, midpipes, front pipes
Appreciate 0
      08-25-2018, 09:54 AM   #291
Bours
Lieutenant Colonel
Canada
108
Rep
1,653
Posts

Drives: 2011 335i x-drive LCI sedan
Join Date: Nov 2014
Location: Montreal

iTrader: (0)

Quote:
Originally Posted by Bigugly View Post
Not to add fuel to the fire but, they've never posted N55 flow numbers.
They don't have N55 valve train. We're the only company that's developed it. I won't keep beating a dead horse (like them using Chrysler head studs, then switching to a stud with a spacer for drop in installs- the same thing they tried to say was "silly" with our set lol)
I digress- have a great weekend, folks!
which company do you represent i cant see it on my cell phone ? there is ported head on a n55 thata been done yet right ?
Appreciate 0
      08-25-2018, 11:09 AM   #292
Xdrive35i2014
Private First Class
27
Rep
188
Posts

Drives: X1 35I
Join Date: May 2016
Location: Canada

iTrader: (0)

Quote:
Originally Posted by Bours View Post
which company do you represent i cant see it on my cell phone ? there is ported head on a n55 thata been done yet right ?
He's from Houston. Looks like he might be from ABRhouston.
Appreciate 0
      08-27-2018, 09:58 AM   #293
Bigugly
sheesh!
Bigugly's Avatar
United_States
12
Rep
193
Posts

Drives: 2015 M4
Join Date: Apr 2012
Location: Houston

iTrader: (2)

You're assumption would be correct.
I tread lightly here, since I've been banned multiple times for not being a "sponsor" when I'm trying to have a conversation.
Appreciate 0
      08-27-2018, 02:22 PM   #294
Ozzie335i
Captain
United_States
325
Rep
967
Posts

Drives: 2011 335i
Join Date: Aug 2014
Location: DFW

iTrader: (0)

BU, were those numbers you quoted above be at the flywheel, or whp?
Appreciate 0
      10-09-2018, 10:36 PM   #295
LBoogs
Registered
0
Rep
1
Posts

Drives: 2011 n55 e90 335i
Join Date: Oct 2018
Location: Atlanta, GA

iTrader: (0)

2011 n55 e90 335i problems

I have had a lot of the common issues earlier than the predicted mileage. I love my car but how much more can I take with only 60k miles on a 2011!!

Water pump @50k
Fuel pump @35k
Blow off valve @60k
Charge pipe blew apart @60k
Blower motor wiring (recall) a/c stopped blowing @58k
Front lower thrust rods and control arms jan 2018 @55k
Radiator replacement @52k
Valve cover gasket @27k
Coolant reservoir @27k
Appreciate 0
      10-10-2018, 09:11 AM   #296
Pladi
Captain
Pladi's Avatar
Canada
154
Rep
719
Posts

Drives: 2011 335i xdrive
Join Date: Nov 2017
Location: Waterloo, ON Canada

iTrader: (0)

Quote:
Originally Posted by LBoogs View Post
I have had a lot of the common issues earlier than the predicted mileage. I love my car but how much more can I take with only 60k miles on a 2011!!

Water pump @50k
Fuel pump @35k
Blow off valve @60k
Charge pipe blew apart @60k
Blower motor wiring (recall) – a/c stopped blowing @58k
Front lower thrust rods and control arms jan 2018 @55k
Radiator replacement @52k
Valve cover gasket @27k
Coolant reservoir @27k
What does this have to do with this thread ? This thread was opened for the rod bearing failures .. Did your motor fail ?
Appreciate 0
      10-10-2018, 05:16 PM   #297
Welcome to NBA Jam
Is it the shoes!?
Welcome to NBA Jam's Avatar
1134
Rep
2,659
Posts

Drives: 2011 E92 335i ZMP 6MT
Join Date: Mar 2014
Location: Cary, NC

iTrader: (0)

Quote:
Originally Posted by LBoogs View Post
I have had a lot of the common issues earlier than the predicted mileage. I love my car but how much more can I take with only 60k miles on a 2011!!

Water pump @50k
Fuel pump @35k
Blow off valve @60k
Charge pipe blew apart @60k
Blower motor wiring (recall) a/c stopped blowing @58k
Front lower thrust rods and control arms jan 2018 @55k
Radiator replacement @52k
Valve cover gasket @27k
Coolant reservoir @27k
Most of those things have happened at very early mileages. Most of them are not totally uncommon to do over the life of the car, but you're definitely above the norm at those mileages in my opinion.
Appreciate 0
      10-10-2018, 06:45 PM   #298
maddmatth
Lieutenant
124
Rep
522
Posts

Drives: E92 335i MSport DCT
Join Date: Jun 2015
Location: Auckland, New Zealand

iTrader: (0)

Quote:
Originally Posted by Welcome to NBA Jam View Post
Most of those things have happened at very early mileages. Most of them are not totally uncommon to do over the life of the car, but you're definitely above the norm at those mileages in my opinion.
They must have been drunk at the factory when they built his engine lol. That's a lot of issues at low mileage.
Appreciate 0
Reply

Bookmarks

Tags
n55, rod bearing

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 06:16 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST