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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 Sat, May-18-2019, 03:05:08 AM   #31
Blaikenstein
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Default Re: Ross performance s54 harmonic balancer

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Originally Posted by terraphantm View Post
So how do you plan on quantifying the improvement? S54 damper doesn't fail all that often. Even if it was a 100k mile maintenance item, $560 every 100k isn't that big of a deal vs the same amount of money on a completely unknown product.


I had asked earlier if a dyno would show any changes, not necessary in power but potentially smoothen the delivery. I have a mechanics stethoscope that I can maybe connect to my phone? Or if any of the engine sensors would be able pick anything up. Let me know if you have any ideas.

In regards to it being an unknown part you guys are all in luck. My weekends are better then most peoples vacations. My car sees regular massive elevation changes at high altitudes on extended road trips. Iím honestly an ideal test mule.

Iíll be doing a valve adjustment and some timing work tomorrow so Iíll take a look at the current damper.
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Old Sat, May-18-2019, 04:34:33 AM   #32
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Default Re: Ross performance s54 harmonic balancer

if there are bad crank harmonics then the valvetrain and crankshaft move relative to each other so it could show on the dyno as its the same as the cam timing being a bit off. i would not trust a chassis dyno though its not repeatable or reliable enough. something that is properly controlled like a instrumented engine dyno would see a difference. realsitically it will be smoothness of the engine at high rpm that all you might notice but that is subjective. my guess is youd need to be above the stock rpm levels to see any quanifiable difference
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Last edited by digger; Sat, May-18-2019 at 04:38:11 AM.
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Old Sun, May-19-2019, 03:33:37 AM   #33
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Default Re: Ross performance s54 harmonic balancer

Stock damper looks fine.



I knocked out a valve adjustment and redid my timing so today wasnít the day to do the damper. Also need to hunt down angle torque wrench

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Old Sat, May-25-2019, 01:50:30 AM   #34
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Default Ross performance s54 harmonic balancer

Laser or perforated embossed logo on the box

Quality control sticker with employee initials

Excellent packaging for the long haul

Pulley and damper are locked in cardboard

It doesnít have 360* timing marks




Last edited by Blaikenstein; Sat, May-25-2019 at 02:09:21 AM.
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Old Sat, May-25-2019, 06:00:40 AM   #35
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Default Re: Ross performance s54 harmonic balancer

Looks pretty trick hopefully it gives up the goods. Definitely in for long term feedback...
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Old Thu, Jun-13-2019, 05:07:36 AM   #36
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Default Re: Ross performance s54 harmonic balancer

Can you check if the BMW TDC tool fits into the harmonic dampener? It didn't fit into the ATI harmonic dampener.
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Old Thu, Jun-13-2019, 12:12:29 PM   #37
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Default Re: Ross performance s54 harmonic balancer

Probably a dumb question, but I assume this is for non-SC cars?
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Old Thu, Jun-13-2019, 12:37:50 PM   #38
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Default Re: Ross performance s54 harmonic balancer

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Probably a dumb question, but I assume this is for non-SC cars?


Not a dumb question at all, boosted engines need all the help they can get. This unit replaces the stock one and I would think itíll work just fine unless your sc needs a different pulley.
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Old Thu, Jun-13-2019, 12:39:44 PM   #39
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Default Re: Ross performance s54 harmonic balancer

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Originally Posted by ASAed330 View Post
Can you check if the BMW TDC tool fits into the harmonic dampener? It didn't fit into the ATI harmonic dampener.


For sure, Iíve been busy with my subframe but Iíll be focused on getting the damper project moving once I recover.

Are you asking if the pin physically fits into the hole? I can check that pretty easily
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Old Thu, Jun-13-2019, 12:40:03 PM   #40
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Default Re: Ross performance s54 harmonic balancer

Yeah thatís why I asked. The ESS kit I have uses a different crankshaft pulley. Wasnít sure if that could be replaced on this dampener.


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Discussing Ross performance s54 harmonic balancer 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)