pre 06/07 crank stabilisation "Kurbelwellenstabilisierung" how to?????

marconi118 · 11-12-2010, 04:15 AM

Reading on the net that after 06/07 BMW applied a modification to the N54 crank to allow over 360HP
Without this modification the crank is not strong enough to go over 360HP

For all members like me that have a pre 06/07 N54 and want to go over 360HP it is possible to ask BMW to apply this modification as a retrofit it is called crank stabilisation, in german: "Kurbelwellenstabilisierung"

I don't have any technical detail, nor how to ask this to BMW.

Can someone provide extra info? Is this needed? How to do it etc...????

enrita · 11-12-2010, 04:32 AM

my crank was fine and was pushing 430 mustang whp at the time of my failure, my car is a 06 2007

marconi118 · 11-12-2010, 04:41 AM

it seems that the 06/2007 have it already

I am figuring out to understand what it is exactly, bearings, crank, rods?

On realoem no part changed # around 05-07/2007 so it is still mysterious

enrita · 11-12-2010, 04:46 AM

Quote:

Originally Posted by marconi118

it seems that the 06/2007 have it already

I am figuring out to understand what it is exactly, bearings, crank, rods?

On realoem no part changed # around 05-07/2007 so it is still mysterious

maybe that was on the very very first ones? have a friend that has one of the earliest european 335i coupe and he never had an issue full stage 3. his is like a feb/march 2006.

Praemienhai · 11-12-2010, 08:30 AM

Quote:

Originally Posted by marconi118

Reading on the net that after 06/07 BMW applied a modification to the N54 crank to allow over 360HP
Without this modification the crank is not strong enough to go over 360HP

For all members like me that have a pre 06/07 N54 and want to go over 360HP it is possible to ask BMW to apply this modification as a retrofit it is called crank stabilisation, in german: "Kurbelwellenstabilisierung"

I don't have any technical detail, nor how to ask this to BMW.

Can someone provide extra info? Is this needed? How to do it etc...????

The infos that you need a "Kurbelwellenstabilisierung" with the pre 06/07 N54 are due to infos of DS-Motorsport. As far as I know they are the only one of the known european tuners who say there is a need for a crank stabilisation with the N54 pushing more than 360hp. I don't know where are their infos from and if they are right. Maybe its just to "excuse" their overpriced products...

DefactoM6 · 11-12-2010, 10:09 AM

Quote:

Originally Posted by Praemienhai

Maybe its just to "excuse" their overpriced products...

That sounds about right.

marconi118 · 11-14-2010, 06:17 PM

But I think this stabilisation is done by BMW and not DS-motorsport...

I have heard in the past that something was modified in the crank, but I don' know what.

Really a mysterious to elucidate

marconi118 · 11-17-2010, 05:55 AM

bump
any infos on this

Fernflex · 11-17-2010, 10:08 AM

My car is from 06/2006 and I have been runnig with 375+whp for over a year with no oil cooler and never had a poblem. (knock on wood).

Do you have a part number for this, I cant find anything!

11-12-2010, 04:15 AM	#1
marconi118 Major 96 Rep 1,186 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	pre 06/07 crank stabilisation "Kurbelwellenstabilisierung" how to????? Reading on the net that after 06/07 BMW applied a modification to the N54 crank to allow over 360HP Without this modification the crank is not strong enough to go over 360HP For all members like me that have a pre 06/07 N54 and want to go over 360HP it is possible to ask BMW to apply this modification as a retrofit it is called crank stabilisation, in german: "Kurbelwellenstabilisierung" I don't have any technical detail, nor how to ask this to BMW. Can someone provide extra info? Is this needed? How to do it etc...????
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11-12-2010, 04:32 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	my crank was fine and was pushing 430 mustang whp at the time of my failure, my car is a 06 2007 __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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11-12-2010, 04:41 AM	#3
marconi118 Major 96 Rep 1,186 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	it seems that the 06/2007 have it already I am figuring out to understand what it is exactly, bearings, crank, rods? On realoem no part changed # around 05-07/2007 so it is still mysterious
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11-14-2010, 06:17 PM	#7
marconi118 Major 96 Rep 1,186 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	But I think this stabilisation is done by BMW and not DS-motorsport... I have heard in the past that something was modified in the crank, but I don' know what. Really a mysterious to elucidate
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11-17-2010, 05:55 AM	#8
marconi118 Major 96 Rep 1,186 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	bump any infos on this
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11-17-2010, 10:08 AM	#9
Fernflex First Lieutenant 49 Rep 334 Posts Drives: E92 Crimson Red 335i Join Date: Oct 2009 Location: Guaynabo iTrader: (9)	My car is from 06/2006 and I have been runnig with 375+whp for over a year with no oil cooler and never had a poblem. (knock on wood). Do you have a part number for this, I cant find anything! __________________ R56 Cooper S E92 335i E30 332is Burger Tuning, Evolution Racewerks and VRFS in Puerto Rico...
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