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M474 Rear dampers

richthomas

richthomas

PCGB Member
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Anyone know what the difference is between M474 and M030 rear dampers??

In my quest for new shocks I think I am going to go for an M474 upgrade, but M030 rear dampers are more then half the price of the M474's[:mad:]. Is there much difference, and would mixing M030 rears with M474 fronts be a bad idea? From what I could find out M474 rears are adjustable, as are M030's, so I'm guessing the only difference is in the valving rates.

Any help would be much appreciated[8D]

Rich
 
A good person to ask would possibly be Adrian in the parts dept at Exeter OPC, I spoke to him recently about M030 rears and he seems to know more about 944's than a lot of the other OPC's

I think you are correct in that the only difference is the internal valve rate, the M030's will be stiffer.

Where are you getting the M474 fronts from?
 
Agreed. I had a lengthy chat with him today - I like to challenge him with little bits that nobody else would think to buy. Today I ordered a LHD passenger side window switch panel, blanking plates of various flavours for that plate and the centre console switch holes, 968 CS manual mirror mounts, two pairs of fasteners for a bridge spoiler etc. He finds it all on PET as if he knows exactly where it is.

I also asked him about the 968 cubby with the clock space but even he can't source any.

He also said that they have just had a customer write off a red G-plate Turbo with leather & bridge spoiler that is at the body shop awaiting the insurance company to put a value on it, should anyone want it.
 
'90 944 Turbo rolling shell in Glacier blue (The Steve McQueen of Porsches)

More the the del trotter of Porsches [;)]
 
A good person to ask would possibly be Adrian in the parts dept at Exeter OPC
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That's who I spoke to a couple of weeks ago about them, and even he's not sure what the difference is. He is as good as you guys say though, very knowlegable about 944's and very friendly and willing to have a chat which is a refreshing change compared to the usual grunting, um, errring and general indifference you usually get elsewhere.[:D]

He quoted me about £70 for the M030 rears, and £180 for M474's. Quite a difference, and if the only difference is in the valving I know which ones I will be going for. As they are both adjustable anyway, you should be able to find settings that are about the same. He can also get the fronts too, but at about £250 each side not cheap. Altogther though about £200 more than a full set of standard sachs dampers so I think that's what I'll go for in a few months when I can afford it all.

I was thinking about getting some 968cs front springs to go with them as they are bout 25mm lower and a bit stiffer. M474 springs are only 11mm lower which I don't think is worth it. Any thoughts??
 
968 CS springs are 20mm lower. I bought a set (from Adrian) for my old S2 coupe. They cost £135+VAT IIRC, maybe more.

M474 might be adjustable in rebound and compression (M030 is just rebound IIRC) or them may be adjustable without having to remove them from the car.

I'm going to go Leda with my Turbo I think - under £800 all-in (including Eibach front springs), adjustable on the car and rebuildable.
 
M474 might be adjustable in rebound and compression (M030 is just rebound IIRC) or them may be adjustable without having to remove them from the car.
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Hmmmm, not sure. The M474 option was only for sports dampers, M030 was sports chassis, and with full adjustable coilovers on the front you would think the rears would be the best option too if you get what I mean. I think the price difference only reflects the stock levels and avaliablity, rather than what you pay for[:mad:].
According to Adrian there are some M030 rears on the shelf.

The main thing I wanted to know was would you mix and match front and rear, or should I just splash out and get a matching set? Also would you have thought it would quailfy as being modifed for insurance purposes, or is it still stock as it was a factory option and all genuine Porsche parts?

Cheers

Rich
 
I would have thought that it is Ok from insurance purposes as it was an option on a new car from the factory, hence not a modification.

You are probably right about the cost being a function of stock and probably demand.

As for whether or not to splash out... well as I said I'm going to go for Ledas.
 
Gave Carole Nash a call last night just to check (they are my best quote so far this year by the way) and they said it wouldn't make a difference as it was a factory option as I hoped[:)]

Fen, did you have to adjust the rear ride height when you used 968cs springs on your S2? My car sits a bit lower on the back at the mo anyway, so hopefully it would sit level with the front lowerd a little, or there might be some adjustment in the rear spring plate eccentric bolt.
 
Just a quick related question - my Turbo was supplied with the 'Sports Shocks' option. Does anyone know what exactly this comprises? The car is fitted with yellow Konis front and rear, but I'm not exactly an expert on suspension and not sure if that's normal or not.

Thanks
Dan
 
Rich,

Yes, I had the rear lowered, but did it need to be? I don't know. I had it adjusted as low as it would go without re-indexing the torsion bar.

Albeit that it had 18's on , here is how it sat:
http://images.fotopic.net/?id=622161&outx=600&oq=0

I have a picture at home of it on D90's I can dig out if you want to see it.
 
Fen,
that looks really nice, I guess I'll just have to wait and see how it sits when I finnally get round to doing it all, and decide if the rear is too high.

I've read that adjusting the spring plates at the back is quite an easy job so we'll see[8D]

Dan, the M474 sports shocks option as far as I could find out was just Adustable Koni front and rear dampers and slightly lower front springs. Not to be confused with the M030 sports chassis option which comprised of adjustable coilover konis at the front, adjustable rear konis, firmer torsion bars and anti roll bars, 928 S4 brakes and wider wheels and tires. I'm sure someone will correct me if I've missed anything[;)]

Rich
 
ORIGINAL: richthomas

Fen,
that looks really nice, I guess I'll just have to wait and see how it sits when I finnally get round to doing it all, and decide if the rear is too high.

I've read that adjusting the spring plates at the back is quite an easy job so we'll see[8D]

Dan, the M474 sports shocks option as far as I could find out was just Adustable Koni front and rear dampers and slightly lower front springs. Not to be confused with the M030 sports chassis option which comprised of adjustable coilover konis at the front, adjustable rear konis, firmer torsion bars and anti roll bars, 928 S4 brakes and wider wheels and tires. I'm sure someone will correct me if I've missed anything[;)]
Rich
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I have the M030 Koni's (well not at rear as they were replaced by saches!!!) Anyway, is the ride height adjustable or is it just the damper rebound settings that you can adjust!!

Anyway at £70 i might have to get me some of them dampers for the rear before they shoot back up in price..
 
Just the rebound.

They adjust by removing the bump-stop and fully compressing them and then turning the bottom part of the body - it engages with the adjuster which is around the top of the polished shaft, inside the housing. Easy it is not.

I got mine for £45 each + VAT (not through Adrian) but I can't get any more at that price.
 
ORIGINAL: Fen

Just the rebound.

They adjust by removing the bump-stop and fully compressing them and then turning the bottom part of the body - it engages with the adjuster which is around the top of the polished shaft, inside the housing. Easy it is not.

I got mine for £45 each + VAT (not through Adrian) but I can't get any more at that price.
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What you mean only 2 fell of the back of the lorry did they. [;)]
 
Yeah, funny thing is they both have a horrible scratch in the same place - on the serial number... weird.
 
Lots of info about adjustability at www.944turbo.org.uk

Basically:

M030 fronts are height adjustable by means of a lockable lower spring perch, and rebound by the knob on top of the shock

M030 rears are rebound only, but you can adjust the angle of the torsion bar using an eccentric bolt (just like all 944's) to adjust the rear height

Dan, if your sticker in the boot has coded 030 on it you have the full M030 sports chassis, 474 is the adjustable shocks
 
Here's a pic of my old S2 on D90s (Turbo 9" on the back and S2 rear 8" ones on the front) taken after I'd sold it at the Devon & Cornwall concourse in 2001. It lives in Denmark now I believe.

7FDC8A0B7CD243488761A095665C5806.jpg
 
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