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ERIKGARCIA ERIKGARCIA is offline
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Default Big Turbo kit for N55? - 11-13-2018, 01:24 PM

I'm going to start the process of forging the N55 engine, I currently use PS2. I'm going to lower the compression to 9.2: 1
What Big Turbo Kit do you recommend?


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Default 11-13-2018, 02:15 PM

How much power are you trying to make? Is the PS2 Not enough power for what you're going for?


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WeekendWarriorz WeekendWarriorz is offline
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Default 11-13-2018, 02:40 PM

BigboostUSA 3.4 kit- Juan has great customer service. speedtech kit is also the best quality, and Vargas is coming out with something in a few more months.


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Default 11-13-2018, 03:06 PM

Quote:
Originally Posted by Payam @ BMS
How much power are you trying to make? Is the PS2 Not enough power for what you're going for?
600 WHP +\-


M135i EWG 2014
[B]Pure Turbo Stage 2 | Port Injection FI | Exhaust |Chargepipe ER | Intercooler Phoenix | Intake BMS | LPFP Stage 2 FI | TMAP N20 3.5 BAR | Pure Inlet Highflow | GFB DV+ | JB4 | BEF Trebila
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Alex@abrhouston Alex@abrhouston is offline
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Default 11-13-2018, 04:32 PM

We can handle that for you, we've got some great N55 specific parts- including doing an N54 crank shaft swap. Closed deck, ported heads, valve train, pinned hub, and other things are available.

The BB kit works- but if your going for big power, get the externally mounted wastegate manifold. We have an E92 with a fully built engine, and the head/portwork flows so hard that the internally gated set up can't keep up. We'll be swapping manifolds and turbo housings to help be able to contain the boost.


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Default 11-13-2018, 05:53 PM

I'm going to use this
JE Pistons 9.5:1
Carrillo Rods.
King Race Bearing.
Ferrea Valves.
Head Gasket OEM?


M135i EWG 2014
[B]Pure Turbo Stage 2 | Port Injection FI | Exhaust |Chargepipe ER | Intercooler Phoenix | Intake BMS | LPFP Stage 2 FI | TMAP N20 3.5 BAR | Pure Inlet Highflow | GFB DV+ | JB4 | BEF Trebila
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Juan_BIGBOOST_TURBO Juan_BIGBOOST_TURBO is offline
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Default 11-14-2018, 05:32 AM

Erik, I'll set you up on the turbo kit, the EWG has no problem in the boost control. As for the head gasket I'm using OEM in all my engine builds and no problems at all!


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jturboawd jturboawd is offline
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Default 11-14-2018, 05:44 AM

Consider bigboost for build or do yourself

For turbo best option on market is speedtech sxe kit with external wastegate. Bigboost 3.4 is very very similar, basically the same except bigboost uses a master flow and speedtech uses a BW. Bigboost is also a larger shop so you’ll have to consider the kits based on cost, vender, and turbo.

Either one you can make good power with and either one you should go with external waste gate.

If your goal is big wheel horsepower and f*** the spool go with a top mount.


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Default 11-14-2018, 06:08 AM

what are your goals : dyno king / drag race / roll race / half mile


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Default 11-14-2018, 10:30 AM

Quote:
Originally Posted by Alex@abrhouston
We can handle that for you, we've got some great N55 specific parts- including doing an N54 crank shaft swap. Closed deck, ported heads, valve train, pinned hub, and other things are available.

The BB kit works- but if your going for big power, get the externally mounted wastegate manifold. We have an E92 with a fully built engine, and the head/portwork flows so hard that the internally gated set up can't keep up. We'll be swapping manifolds and turbo housings to help be able to contain the boost.
Can you pm me what the cost would be for something like this setup? I was wanting to do a top mount pushing serious power. I'd rather do it on a fully built motor that can handle anything I throw at it


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Default 11-14-2018, 11:24 AM

Quote:
Originally Posted by luchocamp
what are your goals : dyno king / drag race / roll race / half mile
Drag race


M135i EWG 2014
[B]Pure Turbo Stage 2 | Port Injection FI | Exhaust |Chargepipe ER | Intercooler Phoenix | Intake BMS | LPFP Stage 2 FI | TMAP N20 3.5 BAR | Pure Inlet Highflow | GFB DV+ | JB4 | BEF Trebila
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Default 11-14-2018, 01:25 PM

stock engine could go more than ZF 8 speed could manage. N55 is strong


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Default 11-14-2018, 01:45 PM

Quote:
Originally Posted by luchocamp
stock engine could go more than ZF 8 speed could manage. N55 is strong
I suffered some kind of detonation and lost compression in cylinder 2. I still can not find an explanation of how it happened. The log seems to be clean.


M135i EWG 2014
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Default 11-15-2018, 03:06 AM

Bad to hear that. A good shop could identify what happens. Even a forged engine could be damage if something stop working hardware or software.


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Default 11-15-2018, 07:19 AM

Try to find what happens first.
One of my customers in Colombia M135i RWD N55 speedtech efr 8374 makes 11.1@130mph stock N55 engine FBO PI WMI E60 hoosier 245 40 18 MHD and JB4 24psi target and still more to improve by @luchocampusano


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Alex@abrhouston Alex@abrhouston is offline
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Default 11-15-2018, 02:40 PM

Quote:
Originally Posted by VegasJD
Can you pm me what the cost would be for something like this setup? I was wanting to do a top mount pushing serious power. I'd rather do it on a fully built motor that can handle anything I throw at it
Go check out our goodies on abrhouston.com and shoot us an email engines@abrhouston.com


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Jeff@Speedtech Jeff@Speedtech is offline
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Default 11-15-2018, 11:42 PM

Hey Erik - For an ewg F chassis car like yours, we offer the BW EFR lineup, which goes up to the the 9180 good for around 1000hp. But if you have a stock 8AT trans, the 8374 will get you to the trans limits anyways.

We still haven't seen any engine failures over the last two years, all stock engines. I'll say it again, that the most likely reason for N55 failures is people pushing N55 hybrids too far and likely seeing ridiculous backpressure (the stock N55 manifold is much more restrictive than the twin N54 setup). I'm not saying to not build an N55, as if you're shooting for really big numbers a built engine is of course a good idea, just want to give some perspective from our experience. Either way, a built engine will give you more safety margin if you are really going to turn it up.

Last edited by Jeff@Speedtech; 11-16-2018 at 12:11 AM..
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