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YOUR RESEARCHRH MK 996 19" Wheel Special
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Adjust by the user via a ****/dial
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The shock rates can be adjusted by the user via a ****/dial on the shock.
Leading evidence: 'Adjust by the user via a ****/dial' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'nicest riding adjustable coilover i have driven' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Adjust by the user via a ****/dial' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Probably the nicest riding adjustable coilover I have driven on.
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An expert Porsche engineer and track specialist drove my car and set an allignment to make it a bit better, but I think that I probably will go with the X74...
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Suggestion
An expert Porsche engineer and track specialist drove my car and set an allignment to make it a bit better, but I think that I probably will go with the X74...
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11" rear with et56 is going to stick out too far and risk cutting a tire with your fender. THe MkII GT3 wheels are 11" et63 and sit pretty far out as well so that shoudl tell you that these would stick out another 7mm past the GT3 wheels. Ouch!
To give you an idea how these will look the front will stick out 6mm more than your stock 8" et50 wheels. IMHO, that is a good thing! However, in the rear, it would be like adding a 22mm spacer to your stock 10" et65 wheels. Not good.
I think Dell may be right. I'm effectively ET60 (1/8th further out than GT3) on 11 inch rears and fully loaded it clears, but any more and I'd be nervous.
I'm with Dell on this one. Wheels with the width and offsets that you listed would be a poor fit on a NB IMHO. I have 11" wheels with a 65 offset on my car and I am certain that I would rub on compression if the offset were a et56 (unless I really reduced the tire width from my current 295's).
Thanks Ray.
Do you find it harsh?
Or do you think It's perfect for daily use?
My RoW M030 is good but I find it a bit soft in front axle
An expert Porsche engineer and track specialist drove my car and set an allignment to make it a bit better, but I think that I probably will go with the X74...
I drove a 996 C4 X74 and I loved it. But you know that there is a huge difference between C2 and C4 front train and I'd like to know your experience because people like Dell and you are very confident.
Other solution would be lowering with Eibach shorter springs....
11" rear with ET 60 and a 315 tire mounted. No contact with outer fender or wheel wheel seam that runs across the top and sits perfect. 2.5 degrees of negative camber on OEM GT3 Suspension. Top of tire/wheel travel inward past the fender lip under major load.
Note: trimmed plastic liner at the bottom front inner edge, approx 2 inch oval cutout for inner edge of big tire.
To the credit of the GMP folks after looking at my current wheels/tires I can see 6 more mm of clearance without an issue. It would be right at the edge, the very edge. And the negative camber would be required
I do not think it is overly harsh for daily use. That being said both the spring rate and the dampening level is a major increase over stock. If there is a ripple, or even slight undulation in the pavement you are going to feel it. Expansion joints in the highway, you will be able to count them.
The payoff is razor sharp handling compared to a stock 996.
Having driven a lot of different suspensions in the 996 here's how I'd rate them
Stock - too much body roll and a little floaty at high speed. 4x4 ride height.
ROW 030 - A big improvement that makes the car noticably sharper. Improved ride height. Does not quite go far enough for my taste.
PSS9 - Big benefits in the looks department, not quite as big in the handling department. Probably the nicest riding adjustable coilover I have driven on. For people that want the lowered look, without a big ride sacrifice this is your set-up. Feels similar to ROW 030 stiffness with a lower ride height.
x74 - Really sharp handling coilover (non adjustable). Zero play or slop. Very flat in corners. If there is a road imperfection and you roll over it, you will feel it. Very satisfying and confidence inspiring when you push the car hard. I would not go any stiffer than this for a street car. For a track car, I'd go much stiffer. Not a bad dual use set-up for someone that doesn't want to spend a ton of time tweaking at the track.
Thank you very much
I have RoW M030 and I found it an improvement to stock suspension when I upgraded it last year. Stock suspension is not proper to be installed in a PORSCHE. It's too much soft, and we are talking about "the nine-eleven = the myth", a sport car, not a van
.
I'm not happy enough with M030's look. It'is very high.
Though It lowers 20 mm front and 10 mm rear, my car continues been so tall. For daily use is perfect. In Spain we have thousands of humps in urban streets, and It's an impediment for lower cars. I think that M030 would be the stock suspension.
The front train is still a bit floaty.
Ray, I didn't know that PSS9 was softer that X74. I thought that PSS9 was too much stiff and harsh that any other Porsche OEM suspension.
Is the PSS9 difficult to find the correct set up ? Do you need to go to a mechanic to operate in the shocks rate?
Thanks for the info.
I have never installed PSS9's on any of my cars, but I have driven several 986's and 996's equiped with this coilover system.
The shock rates can be adjusted by the user via a ****/dial on the shock. IMHO the spring rate is similar to the rate of the M030 springs as measure by my tried and true "butt meter". FWIW I did not drive the M030 and PSS9 setups back to back so I'm really going off memory here.
Maybe someone with PSS9's installed can chime in here.
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