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Vanos blues

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.

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Thu, Jul-26-2012, 02:44:29 AM

#21

RedM3/4

Registered User

Join Date: Jul 2005

Posts: 5,397

Reputation: 0 RedM3/4 is a jewel in the rough

Re: Vanos blues

Lots of speculation on why the failure mode happens, most agree a radius would help. Do a search, a couple of key threads on this should pop up.

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Quote:

Originally Posted by qualicas

I'm wondering if the tabs have a very sharp inside corner? If so that could start stress cracking and failure. There should be a slight inside radius, even 0.020" radius would be good. I just bought my M3 as a fix up project. Unfortunately, my list keeps getting longer and longer.

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98 M3/4, Supersprint catback, UUC red tranny mounts, Rogue SS w/UUC dual selector rod, wired V1.
Sold to my son, still in the family!
06 SMG/ZCP - April 09, Dinan over Konis, RAC RG63, homelink with off-delay (working), multifunction steering wheel buttons, RacingBrake Front kit.

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engine, parts, vanos

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