RajDatta

Just check PET, of the part number on 944s is same as s2, you have your answer.

reno808

i have seen same prt #'s but slightly different parts to where it has made a difference.

Voith

One is with 8 holes and strange 8 hole spacer/holder and one is with regular 4 holes.

How does s2 balancer (The right one with 8 holes) bolts on engine correctly? Cant seem to find a picture of mounted balancer...

Chris White

You need the S2 balance belt gear too....or you could just use 4 bolts - it would be fine.

73911

Here's an article I wrote for Vintage Motorsport magazine on harmonic dampers. It might add something to this thread.

Richard Newton

V2Rocket

I have only seen the 4-bolt version on the 944S.
The 8-bolt I've seen on 944S2.

333pg333

Thanks Richard. So where you touch on the SFI rated dampers what do you equate to 'extremely high rpms'? Assuming the ATI product sits in this range.

URG8RB8

I just posted reference pics to 944 turbo FB page. This site refuses to fix the app for photo uploads or I would post it here.

Voith

Here is one nice pic of mine

73911

An damper that uses the SFI label must meet the following conditions.

The SFI spec 18.1 stipulates minimum mechanical properties for the steel used in the construction of the damper, the requirement that the outer inertia ring is retained and where the damper is subjected to spin test requirements of 12,500 rpm for one hour.

Richard Newton

eohrnberger

The shop has got my ’91 944-S2 for belts and water pump, when they pulled the crank accessory drive damper, pointed out that the rubber between the 2 halves of the pulley is showing its age, and appears to be pretty close to letting go.

Is there a suitable replacement for the 3.0L M44 inline 4? Seems that Porsche no longer has an OEM replacement for sale.

Any hints, pointers, or suggestions, greatly appreciated.

gruhsy

yes check out RSBarn

http://www.rsbarn.com/catalog/index....roducts_id=103

eohrnberger

Yup. Thanks.

I think I may have found them in another thread that I was reading on this. Will be talking to them tomorrow and will probably place an order. Kinda don't have very much choice when the OEM units is aged and word out.

URG8RB8

Yes, I just bought 2 from Pete at RS Barn. Much better design and rebuildable. The S2 balancer was not created for a 3.0L, from what I have read.

URG8RB8

I am supposed to pick them up tomorrow, If I don't get stuck at work, I will post a picture.