Group Buy: ATI Damper for M54

Hey Guys,

Time for another group buy. Thanks to F1004fun, McSpeed, PEI330CI, and anyone else who took the time to make this happen. I just bugged the rep about us saving a few bucks.

Price is $575 plus shipping for 10 units. 50% deposit will be required.

The damper will require a special installation tool that may or may not be included. You may have to fab up something similar to what Adam (PEI330CI) used on installing his. We'll update this as we have more information.

Before you ask "what will this expensive damper do for me?", educate yourself:

Crankshaft Dampers 101

The Dangers of Power Pulleys

This thread has also been going and has some good information on this specific damper:

M54B30 Harmonics and the ATI Damper

This should work on any M54. I don't know about any other block. The M54 was available with 2 dampers. One has a 4 rib A/C pulley, the other has a 5 rib. Know which one you need. You'll need that information when placing the deposit.

So, here's the list:

1. aggieE46
2.
3.
4.
5.
6.
7.
8.
9.
10.

Please be serious about getting on here.

If anyone has anything to add, feel free! Questions are good, just make sure they haven't been answered in the links above.

Brady

ok, so this is 0-balanced and it will come with a 4 rib ac pulley, unlike adam's?
What's the install solution?

Yes, 4 or 5 (depending on your year).

No install solution, yet. Working on it. I think Moroso has been contacted about an adapter for their tool.

Originally Posted by bluejeansonfire

ok, so this is 0-balanced and it will come with a 4 rib ac pulley, unlike adam's?
What's the install solution?

I wish this would for sure work on the M52..

Check the PN on realoem.com

First two links are the same.

After looking it seems that the 5-rib(pre 09/02) should work. Any idea how long this will be open for?

I am interested, but am wondering if ATI will provide an installation tool for this damper. No point to having this damper and not being able to install it properly.

Fixed, thanks!

Originally Posted by paraklas

First two links are the same.

Probably until we get 10. I actually don't see it happening too quickly. I think it's a great piece, but I don't think people are going to be dying to get it (due to the price).

Originally Posted by tinkwithanr

After looking it seems that the 5-rib(pre 09/02) should work. Any idea how long this will be open for?

I don't want to take this thread in the wrong direction... Oil pump nut failure will cost you 1k min, if you know someone. That being said, I would have been all over this 2 months ago. When I lost my Oil Pump Nut. It's not cheap and very labor intensive if you have an AWD car. This is worth it and if I got a cardboard cut out of the tool PEI used, I'm sure i can get some tools made with a water jet. Prices I have no idea, However I'd be willing to pay the shipping to get a cardboard cut out of the tool. And get this ball rolling I'd be in for the buy "IF" i can get the tools made. After one tool was made I'd send it back to PEI and he could let us all know if it was a fail???

^^ The only problem with that is the tool PEI made isn't out of sheet metal or anything like that. If you look in the thread at the top about '330 harmonics and the ati damper' it shows the tool he had to make. It's basically two heavy-duty pieces of allthread welded together with some bearings to help the tool rotate easier. Hard to explain but if you look at the pictures it makes sense. Instead of a water jet you would need something like a lathe (as Adam suggested) to hold the pieces perfectly in line while welding them.

Bump!

i'm hardly dying to get it (due to price). But I need it. Mark me down for 1..... 4 rib? my car is early, but I've never had a 5 rib belt on it, ever.

1. aggieE46
2. bluejeansonfire
3.
4.
5.
6.
7.
8.
9.
10.

The E36 M3 forums have picked this up, well see what happens.

(One of those E36 M3 guys)

I believe one of the threads made a reference to a HP limit for this unit at around 500hp. Is this something to be worried about if you want to make more power than that? AFAIK, the stock damper is used in many high-HP (lower RPM) situations and I can't imagine that the suggested HP limit from BMW was all that high.

Edit - Another question. Looking at realoem, the E36 damper has the crank sensor wheel attached to it. The E46 does not appear to have this. How does the E46 handle the crank sensor/wheel?

I'd call ATI and ask them those questions, I really don't know.

I am about to pick an ATI up for our SRT-4.

very good item to have for high rpm, high whp cars!

Originally Posted by mspiegle

(One of those E36 M3 guys)

I believe one of the threads made a reference to a HP limit for this unit at around 500hp. Is this something to be worried about if you want to make more power than that? AFAIK, the stock damper is used in many high-HP (lower RPM) situations and I can't imagine that the suggested HP limit from BMW was all that high.

Edit - Another question. Looking at realoem, the E36 damper has the crank sensor wheel attached to it. The E46 does not appear to have this. How does the E46 handle the crank sensor/wheel?

To answer your first question: This depends on the RPM, peak torque value, and ancillaries attached to the damper. I don't see anyone spending less than $15k making more than 500hp....a custom damper is a drop in the bucket.

The M52 engines use the same crank position sensor location as the M54. (Timing wheel is inside the crank case on the back of the crankshaft)

The funny thing is that the M52 uses a damper assembly with the 60-2 trigger wheel attached, and the timing chain cover has a mounting position for a sensor.