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dirtygerman dirtygerman is offline
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Default 08-02-2012, 05:33 AM

So I was wanting to know how the n55 manifold flowed.... So what better way to find out









I would like to say this is a pretty big limiting factor for high hp the flow of this manifold is very poor! But does have some good heat retaining methods.
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(#127)
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M135 M135 is offline
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Default 08-02-2012, 05:35 AM

Holy ****!


N55 FBO w/meth E82
7/20/2012 Dyno (no meth): 369 whp / 432 tq Dynojet STD

BMS JB4 / BMS DP / BMS Intake / BMS Meth Kit w/CM10 / BMS e85 wires / ER Charge Pipe / ER FMIC Black / LCI tails / Alpine AE / iCarbon Front Splitter & Rear Diffuser / KW V2's / 19" DPE S20 in custom wrong fitment
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(#128)
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Default 08-02-2012, 05:56 AM

Nice work! If you dont have any plans with the turbine housing portion in the first pic let me know i'd buy it from you. From a flow perspective the manifold is likely inline with the cylinder head itself.


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#129)
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dirtygerman dirtygerman is offline
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Default 08-02-2012, 06:16 AM

I plan on v-banding the turbine housing, which will then go on my b5 a4. I posted these pics in hopes some how assist with motivation for the n55 guys out there pushing the limits lol... With the housing being divided the merge collector for the three exhaust runners is very small and a restricted flow, leaving me to believe that is a limiting factor. But I am no engineer, If this turbo had a manifold with a nice collector and was done with larger primary tubes it would be more efficient, But I would like to think this turbo is near it's limit so building a manifold for this turbo would be a waste of time in my opinion, but maybe someone will prove me wrong.
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(#130)
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turugara turugara is offline
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Default 08-02-2012, 08:17 AM

Wow! Hopefully we can get some dev pushed for the n55.
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(#131)
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Default 09-30-2012, 10:29 PM

dirtygerman,

Did you ever make use of that turbine housing? I would like to start back on this program but could use that part to help out the R&D...

lmk,
Rob


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#132)
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fasteddie222 fasteddie222 is offline
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Default 12-14-2012, 08:01 AM

I made an account here just to show interest for RB turbos for my n55 I have been a member at e90post for like 5 years lol
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(#133)
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Slops Slops is offline
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Default 12-14-2012, 08:14 AM

Quote:
Originally Posted by fasteddie222
I made an account here just to show interest for RB turbos for my n55 I have been a member at e90post for like 5 years lol
me tooOO!O!O!O
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(#134)
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Default 12-14-2012, 09:23 AM

Going to get back on the N55 in January. Will see what we can do with this thing


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#135)
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Slops Slops is offline
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Default 12-14-2012, 09:26 AM

Quote:
Originally Posted by Rob@RBTurbo
Going to get back on the N55 in January. Will see what we can do with this thing
Nice, now that Cobb is out for us should make things interesting...
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(#136)
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F335i F335i is offline
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Default 12-14-2012, 11:56 AM

Seems like RB and Vargas are gonna go at in Jan. This should be interesting.


JB4 S2+ISO Map 7, BMS dp, BMS chargepipe, BMS Intake, Flex fuel wires, BMS OCC.
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(#137)
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fasteddie222 fasteddie222 is offline
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Default 12-14-2012, 01:12 PM

Quote:
Originally Posted by Rob@RBTurbo
Going to get back on the N55 in January. Will see what we can do with this thing
YES!!!!
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(#138)
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Default 12-18-2012, 10:28 AM

Just purchased a few N55 singles to butcher up...


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#139)
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torqdout torqdout is offline
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Default 12-18-2012, 06:38 PM

Quote:
Originally Posted by Rob@RBTurbo
Just purchased a few N55 singles to butcher up...
So pumped for this... definitely subscribed for updates! Hopefully the N55s will be able to throw down similar numbers or even surpass their older brethren (N54s)
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(#140)
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allona allona is offline
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Default 12-19-2012, 12:01 PM

Quote:
Originally Posted by Rob@RBTurbo
Just purchased a few N55 singles to butcher up...


2011 335i M-sport, FBO, Koni FSD dampers, camber plates, Wavetrack LSD.
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(#141)
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Xcution Xcution is offline
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Default 12-30-2012, 03:53 PM

sucks so much reading this...and geting to the last post.

Come on ROB you got this man!!!
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(#142)
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Default 12-31-2012, 06:58 PM

I can tell you I do have all of the turbos now on hand, so this will be happening soon

Quote:
Originally Posted by Xcution
sucks so much reading this...and geting to the last post.

Come on ROB you got this man!!!


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#143)
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Xcution Xcution is offline
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Default 01-01-2013, 09:18 AM

Quote:
Originally Posted by Rob@RBTurbo
I can tell you I do have all of the turbos now on hand, so this will be happening soon
ALL HAIL ROB!!!



I will be one of the first to buy whatever you got for the N55. If possible just keep us, who are losing hair on your behalf while you come up with something in the loop
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(#144)
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Shift_Drift350z Shift_Drift350z is offline
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Default 01-01-2013, 03:09 PM

*Keeps fingers crossed*
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(#145)
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Default 01-01-2013, 04:45 PM

An upgrade will definitely be made available. The only thing to hope for is the amount of work that I can actually do, making the gains more and more apparent.

Quote:
Originally Posted by Shift_Drift350z
*Keeps fingers crossed*


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#146)
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toronto335i toronto335i is offline
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Default 01-04-2013, 04:22 PM

Quote:
Originally Posted by Rob@RBTurbo
An upgrade will definitely be made available. The only thing to hope for is the amount of work that I can actually do, making the gains more and more apparent.
the n55 needs all the help it can get!!!! great news Rob looking forward to this
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(#147)
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Default 01-04-2013, 04:49 PM

I agree! Should have a prototype by month end- then a Guinnea pig willing to do a lil trailblazing for the n55 crowd.


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#148)
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torqdout torqdout is offline
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Default 01-04-2013, 05:29 PM

Quote:
Originally Posted by Rob@RBTurbo
I agree! Should have a prototype by month end- then a Guinnea pig willing to do a lil trailblazing for the n55 crowd.
Any specifics you look for in your pigs? AT/MT? Location? I know I and multiple others would definitely fight for this honor
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(#149)
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Default 01-04-2013, 05:37 PM

Prefer a RWD car and the biggest thing is just someone who is highly motivated to install and tune and get on the dyno and has some tuning know how or capabilities to help speed the process (or is in very close proximity to a tuner like Terry).


See www.rbturbo.com for N54 Twin Turbo Bolt-On upgrades, or contact directly 314-630-8950 rob.rbturbo@gmail.com for a price quote.
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(#150)
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torqdout torqdout is offline
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Default 01-04-2013, 05:44 PM

Quote:
Originally Posted by Rob@RBTurbo
Prefer a RWD car and the biggest thing is just someone who is highly motivated to install and tune and get on the dyno and has some tuning know how or capabilities to help speed the process (or is in very close proximity to a tuner like Terry).
I'm a RWD and very motivated to install but unfortunately not close to Terry :/
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