Jump to content
SAU Community

Recommended Posts

DMS Drummond Motor Sport 50 mm Coil Over Shocks and Springs.

Set of 4 to suit R33 GTR and R34 GTR

Comes with instruction manual and adjusting tool.

These have both independently adjustable bump and rebound.

Also these are on top of the shock so they are really easy to adjust.

You don’t see these babies up for sale very often because everyone who’s got them loves them.

These are the Tarmac Rally version. Not the street version.

That is they are the high performance version in 50 mm not 40mm.

These are our “spare” set and only have done low kms.

These are tuned for Tarmac Rallying but are an awesome street setup with a great ride.

These have progressive springs that give you a nice ride (but very “sporty”) around the street and awesome traction both wet and dry, but as you begin to push the car the spring rate rises meaning that it soaks up large or high speed bumps as well.

Please remeber these are twin progessive rate springs so you can't directly compare to linear spring rates.

Fronts are 700 lb with 250mm free length.

Rears are 400 lb with 350 mm free length.

These are great for street and competition and would only need different springs for really hardcore circuit racing on really smooth circuits.

These are in fine working order and low kms and I will sell these for $2,600.00

PLEASE PM me as I don't get a lot of time to check the forum.

Or you can call 0419 897 983.

DMS shocks are incredibly well built but if you need they can be fully rebuilt and services in NSW.

The following information is from DMS promotional literature:

Every DMS suspension contains a number of special features which set it aside from the competition.

The technology behind DMS products was not merely influenced by a race proven design, but rather has become a race proven design.

DMS Springs:

All DMS products come with the same design philosophy: The best performance in all conditions, configurations and driving styles possible. DMS suspension units use a specially designed spring that is matched with the tune of the DMS shock absorber for race, rally or high performance driving.

These springs cannot be constructed in a conventional method and require several specialised procedures in manufacturing. Incorporating within one unit a taper wire and taper wind design, there is no "dead spot" where the tender spring and linear spring would meet. This results in uniform compression and rebound rate that provides maximum suspension travel for best grip and traction, as well as having a strong spring rate necessary for motor sport or performance driving. DMS springs are tested and proven in competition.

50mm Adjustable Shock Absorber:

DMS first designed and manufactured the 50mm suspension system in 1990. Testing and tuning has continued and now has produced DMS's most successful product - the two-way adjustable damping shock absorber. This adjustable shock absorber has been used in production car motor sports.

This DMS high performance 50mm shock absorber has one of the largest pistons available in a shock absorber in the world. This gives superior control, more precise tuning due to larger displacement and pressure areas and precise adjustment on bump and rebound independently.

The larger the piston area the lower the internal operating pressures and temperatures. This provides higher damping capabilities which are necessary in severe rally or race competition. Compared to conventional shock absorbers the DMS Giant 50mm has over 200% improved accuracy and control.

Product Description:

DMS blue shell case. Made of chrome-moly high strength steel. Threaded and Fitted with screw- adjustable anodised aluminium spring seat and lock nut.

Competition specification mounting brackets.

50mm shock absorber system with high flow competition design piston with defined adjustable bump and rebound settings. DMS only use special formulated racing shock absorber fluid.

Edited by gtrracer
spring rates please.

I will check them but I won't be back on the forum until Monday.

As these are progressive you can't compare the rate to linear spring rates.

Why do you want to know the rates? Are you inetrested in the shocks or just gathering info?

Please remeber these are twin progessive rate springs so you can't directly compare to linear spring rates.

Fronts are 700 lb with 250mm free length.

Rears are 400 lb with 350 mm free length.

I have raced and setup cars for nearly 30 years so I'm no mug in this area.

These work really well both road, rally and track both wet and dry and the only application that may need a spring change would be for dedicated track work.

Even saying that these hold there own on the track.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • You are selling this? I have never bought something from marketplace...i dont know if i trust that enough. And the price is little bit "too" good...
    • https://www.facebook.com/share/19kSVAc4tc/?mibextid=wwXIfr
    • It would be well worth deciding where you want to go and what you care about. Reliability of everything in a 34 drops MASSIVELY above the 300kw mark. Keeping everything going great at beyond that value will cost ten times the $. Clutches become shit, gearboxes (and engines/bottom ends) become consumable, traction becomes crap. The good news is looking legalish/actually being legal is slighly under the 300kw mark. I would make the assumption you want to ditch the stock plenum too and want to go a front facing unit of some description due to the cross flow. Do the bends on a return flow hurt? Not really. A couple of bends do make a difference but not nearly as much in a forced induction situation. Add 1psi of boost to overcome it. Nobody has ever gone and done a track session monitoring IAT then done a different session on a different intercooler and monitored IAT to see the difference here. All of the benefits here are likely in the "My engine is a forged consumable that I drive once a year because it needs a rebuild every year which takes 9 months of the year to complete" territory. It would be well worth deciding where you want to go and what you care about with this car.
    • By "reverse flow", do you mean "return flow"? Being the IC having a return pipe back behind the bumper reo, or similar? If so... I am currently making ~250 rwkW on a Neo at ~17-18 psi. With a return flow. There's nothing to indicate that it is costing me a lot of power at this level, and I would be surprised if I could not push it harder. True, I have not measured pressure drop across it or IAT changes, but the car does not seem upset about it in any way. I won't be bothering to look into it unless it starts giving trouble or doesn't respond to boost increases when I next put it on the dyno. FWIW, it was tuned with the boost controller off, so achieving ~15-16 psi on the wastegate spring alone, and it is noticeably quicker with the boost controller on and yielding a couple of extra pounds. Hence why I think it is doing OK. So, no, I would not arbitrarily say that return flows are restrictive. Yes, they are certainly restrictive if you're aiming for higher power levels. But I also think that the happy place for a street car is <300 rwkW anyway, so I'm not going to be aiming for power levels that would require me to change the inlet pipework. My car looks very stock, even though everything is different. The turbo and inlet pipes all look stock and run in the stock locations, The airbox looks stock (apart from the inlet being opened up). The turbo looks stock, because it's in the stock location, is the stock housings and can't really be seen anyway. It makes enough power to be good to drive, but won't raise eyebrows if I ever f**k up enough for the cops to lift the bonnet.
    • There is a guy who said he can weld me piping without having to cut chassis, maybe I do that ? Or do I just go reverse flow but isn’t reverse flow very limited once again? 
×
×
  • Create New...