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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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Old Fri, Feb-16-2018, 05:26:05 PM   #31
TboneM3
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Default Re: S54 exhaust upper chain guide solution

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Originally Posted by bmwahba39 View Post
I didn't see that Beisan made a replacement/reinforced exhaust hub? It looks like TurboToys and Dr.Vanos makes one?

I'm just generally confused, thanks for your help!
He meant hub disk, with the holes in it.

As far as the hub with the tabs, I'd just get another BMW one and use the besian disc with the re-drilled holes.

Turbotoy and Dr Vanos hubs seems a little unnecessary/gimmicky to me.
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Old Fri, Feb-16-2018, 05:37:24 PM   #32
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Default Re: S54 exhaust upper chain guide solution

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Originally Posted by TboneM3 View Post
He meant hub disk, with the holes in it.

As far as the hub with the tabs, I'd just get another BMW one and use the besian disc with the re-drilled holes.

Turbotoy and Dr Vanos hubs seems a little unnecessary/gimmicky to me.
Got it ok. Does that mean that doing the Beisan Disc would reduce/eliminate stress on the exhaust hub tabs, thus a strengthened one is not necessary? So if my exhaust hub is intact at 58k miles (crossing my fingers) I can skip it?

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Old Fri, Feb-16-2018, 05:39:58 PM   #33
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Default Re: S54 exhaust upper chain guide solution

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Originally Posted by bmwahba39 View Post
Got it ok. Does that mean that doing the Beisan Disc would reduce/eliminate stress on the exhaust hub tabs, thus a strengthened one is not necessary? So if my exhaust hub is intact at 58k miles (crossing my fingers) I can skip it?

If your tabs are fine, keep using it in combination with the Beisan pump disk. There are no known failures of the stock hub with the Beisan disk.
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Old Fri, Feb-16-2018, 05:40:32 PM   #34
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Default Re: S54 exhaust upper chain guide solution

Cool. Makes sense. Let's see how it goes....
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Old Fri, Feb-16-2018, 05:52:59 PM   #35
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Default Re: S54 exhaust upper chain guide solution

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Originally Posted by bmwahba39 View Post
Got it ok. Does that mean that doing the Beisan Disc would reduce/eliminate stress on the exhaust hub tabs, thus a strengthened one is not necessary? So if my exhaust hub is intact at 58k miles (crossing my fingers) I can skip it?





Yes. Mine was in tact at ~66k so I kept using it along with a dr. Vanos pump disk. Unfortunately have to crack into the vanos again this spring because I was unaware of cam bolts at the time( sounding like they may be loose) but now I get to at least throw in this new upper chain guide!
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Old Fri, Feb-16-2018, 09:38:24 PM   #36
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Default Re: S54 exhaust upper chain guide solution

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Originally Posted by Obioban View Post
Not sure what you're asking...?

The beisan exhaust hub is a great way to go.
This doesn't cause any sort of damage though?? I've got close to 220K miles on my original. I'm sure it's broken, but I don't have any symptoms - no strange noises, etc.
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Old Fri, Feb-16-2018, 10:25:51 PM   #37
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Default Re: S54 exhaust upper chain guide solution

talking about cryo treated hubs, just find a local place that can cryo treat it for you if the tabs ain't broke. A local place here in SD would do two for 75bucks. Then get the re-drilled pump disk or again if you know a machining place that can accurately drill what you have then that would be the cheapest way as well.



Anyway, anyone know the part no. for the crush washer for the chain guide? I already ordered the beisan one the other day but I don't see it coming with the crush washer.


Quote:
Originally Posted by aznniche View Post
This doesn't cause any sort of damage though?? I've got close to 220K miles on my original. I'm sure it's broken, but I don't have any symptoms - no strange noises, etc.



I got 165k on mine and I was thinking they are broke too or at least one of them but none of them are broken and no signs of cracks either. Imma do a NDI (Non-destructive inspection, yeah I am an NDT) on it when I take it off the car to see if there's any cracks that I cannot see and if none comes up imma get it cryo treated by a local place here in SD.
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Old Sat, Feb-17-2018, 02:14:49 AM   #38
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Default Re: S54 exhaust upper chain guide solution

Doing my Vanos in a couple of months and placed my order today. Great to see further improvements to clearly inferior OEM parts.
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Old Sat, Feb-17-2018, 02:49:48 AM   #39
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Default Re: S54 exhaust upper chain guide solution

Looks like another winner from Raj. Well done and thank you for your dedication to improving the S54.
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Old Sat, Feb-17-2018, 04:14:39 PM   #40
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Default Re: S54 exhaust upper chain guide solution

I don't know...if you make this failure prone part stronger then something else is the weak link. I'd rather have the upper guide be the issue than the lower guide...that will be a total PIA to replace.

Its a cheap part and easy to get to. You can check it during valve adjustments and takes a little more work to replace if needed.
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Discussing S54 exhaust upper chain guide solution in the E46 M3 (2001-2006) Forum - 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. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)