interesting video guy installing a crank bolt capture

[Beemerm3]

just sharing this video i was watching. He explains about the cbc and installs one. skip to 11 minute mark.

[jpy1980]

Originally Posted by M3classic

just sharing this video i was watching. He explains about the cbc and installs one. skip to 11 minute mark.

Yea great video. I actually saw this video awhile back. Makes me feel better that they seemed to have just installed a CBC and considered the job done.

[Beemerm3]

Yea with engine out an all they could put in a new design crank hub. They r from Europe so I doubt they would have maxpsi cranks laying around.

[behindthen0thing]

They are nearby cologne Germany. They installed their in-house made crank bolt capture on my car. Really nice place. Good guys

[325d]

Originally Posted by jpy1980

Makes me feel better that they seemed to have just installed a CBC and considered the job done.

Pluss 90 degrees.

[behindthen0thing]

They don't always do plus 90 degrees. When they installed mine they didn't do plus 90 degrees. They also have a warranty with the cbc

[jpy1980]

Originally Posted by behindthen0thing

They don't always do plus 90 degrees. When they installed mine they didn't do plus 90 degrees. They also have a warranty with the cbc

Its great that you got yours replaced by the people in the video. They seem very detail oriented. Did they tell you why they thought that the CBC was sufficient enough so that you didn't need to replace the actual hub?

[monkeybating]

Hm, only three hours from me. Maybe I'll pay them a visit here soon. I want bigger turbos. Speaking of which there seem to be several companies in Germany that offer turbos that never get listed on these forums. I don't see anything wrong with them either, they take a new Mitsubishi oem turbo and upgrade it and it's still cheaper with no cores than pure turbos.

[Kooch]

Originally Posted by jpy1980

Its great that you got yours replaced by the people in the video. They seem very detail oriented. Did they tell you why they thought that the CBC was sufficient enough so that you didn't need to replace the actual hub?

This method presumes that the reason for the failure is the bolt coming lose vs the friction between the hub and the crank insufficient for the force applied. It would be interesting to confirm the actual failure point causing these. A CBC assumes over time the bolt backs out or was not torqued properly from the factory. Whereas a keyed crank assumes friction can be overcome even with a properly torqued and seated crank bolt.

[325d]

I would believe the extra 90 degrees they usually (???) turn the bolt before they install the CBC, is an important factor here.

[behindthen0thing]

The guy I talked with a few times is the younger one in the video.
He said they've had no failures with just the CBC, and they install one of their in house made captures that looks really nice.
They said they would make the decision weather or not to tighten the bolt more after they got a look at the engine.
They also said they would warranty the thing for a year that it wouldn't spin.

As far as why they don't install a hub, well they said they would install a hub if i brought one to them, but they don't make one. They seemed to think the CBC was sufficient to prevent spins.

The guy used to have an M3(f80), I told him that I wanted to put bigger turbos and he personally urged against it because he felt the car is too traction limited.
He was now driving what looked like some AMG station wagon with a big V8.

Great company though, nice location too.

[behindthen0thing]

Originally Posted by monkeybating

Hm, only three hours from me. Maybe I'll pay them a visit here soon. I want bigger turbos. Speaking of which there seem to be several companies in Germany that offer turbos that never get listed on these forums. I don't see anything wrong with them either, they take a new Mitsubishi oem turbo and upgrade it and it's still cheaper with no cores than pure turbos.

Hey can you send me some information on the turbos you're talking about?

[MuffinFlavored]

> They seemed to think the CBC was sufficient to prevent spins.

Up until what power levels I guess? This forum would be in an uproar if everybody who spent money on hub fixes found out they didn't need to

[allinon72]

The problem with any of these solutions is there's no way to accurately test it or not. So the statements that is sufficient to prevent spins is all just conjecture.

[behindthen0thing]

Originally Posted by MuffinFlavored

> They seemed to think the CBC was sufficient to prevent spins.

Up until what power levels I guess? This forum would be in an uproar if everybody who spent money on hub fixes found out they didn't need to

Yeah. I was not told what power level, etc. it's just in their experience.
They could not site any scientific study's or anything of authority.

They felt the capture was good enough and are willing to offer a warranty on it.

For them as well as myself it is conjecture and a calculated gamble.
Same as anything else. Personally I would think that a full solution is safer, but I believe the CBC is at least a layer of protection that can be installed for a car payments worth of money.

[cheveux]

I really think the cbc is a good "starting" solution. To be fair the only thing that gives me nerves about driving my car properly is coming to this forum and read all the threads about sch and full crank hub solutions etc. I wish i never read all that after buying my m4.
I have a a stage2 with downpipes in my car for about 10000km now. Runing 545hp and 680nm/tq with no crank hub solutions. I dont really push the car, its true, because im scared from all the stories...but to tell the truth i know a dozen s55 tuned without any crank hub upgrade and no issues so far. Many m2c and m3 pushing 577hp and 711tq, no problems.
I really think that the oem design works like a fuse, and thats why its a two piece part. I will be instaling Litchfield's cbc next month to add that 50% more "security". I hope its enought ...if not i will be the first owner of a s55 with cbc and sch...if not i will be happy and ready to push a little more the car as time passes.
Just want to say that i think the esteem that owners put on their cars also has a big influence on the crank hub life...

[mike@x-ph.com]

Thank you for sharing