georgemautner

Nile. That thought scares me. 033 it is.

georgemautner

I have zero desire to make the car stiffer. My daily ride is a cayenne gts with 21” wheels. The suspension stays on comfort all of the time. I want to get the work done in the fall, but thank you very much for your offer. I’d love to see what your car looks like lowered.

nile13

Oh, no worries, Boston is full of good dentists and Tufts has a good dental school.

No seriously, I think it's M033 for sure. However, nothing is that simple. Ride quality heavily depends on the shock as well, and very much on how well the shock valving is match to the spring rates. That's why I think M033 would work fine with FSD and give you a near-OEM ride quality. Eh, near-OEM when OEM was new. At 61K it's completely and utterly gone, unfortunately, those Monroes just don't last at all.

Still, I'd try a few cars with different shocks and springs before jumping in.

95_993

I am in Boston area with M033 and Bilstein HDs if you want to check ride.

georgemautner

What town?

HalfGerman

We need to do a suspension comparison in the greater Boston area.

In NH with Koni FSD / M033 springs , new ER sport bushings in the control arms, 17" stock wheels.

MarinS4

My comments come from experience with M030 and Factory Koni HD's. It had to be the harshest setup I've ever driven.

I've had much better luck with the Bilsteins.

Living in Boston you're just plain screwed. Worst roads in the country from what I remember. Glad I bailed out 26 years ago!

RonCT

I went with M033 with Koni FSD a few years ago and am very happy with the results. Not too harsh and much crisper handling than the OEM my car came with (Alignment specs below). I'm in CT, so have the same terrible roads you do and did not want any lower than ROW nor harsher. I also got Gert's front lip protector - direct bolt on (photo borrowed from this forum).

Porsche 993 C2S
M033 Springs, Koni FSD Shocks.
BBS RS-GT 18x8 front with 225/40-18 tires, 18x11 rear with 295/30-18 tires (+1)

Front:
Toe 1 mm in
Camber -0.7
Caster +5.1 / 5.3

Rear:
Toe 1.5 mm In
Camber -1.4

Weight 586 / 600
952 / 958

911F1

I have Bilstein HD's with H&R springs that work well together. Sounds like this setup isn't for you. I like a stiffer car that doesn't roll very much when cornering. Just wanted to let you know this combo isn't for you. Sounds like you'd be happy with Koni FSD and M033springs that RonCT has^

nile13

Sorry, but what are "factory Koni HDs?" I assume that's not on a 993?

Boston roads are, well, haven't been rebuilt since WW2.

nile13

I've had that exact combo on the previous 993 - Bilsteins and H&Rs. That just didn't work at all - the shocks weren't valved right for those springs. Went with Bilsteins and M030s on the current 993. Better. Still a bit too stiff, not in a good way, but handles a bit more predictably due to better match between the spring and shock valving. I have autocrossed both a bit.

Heck, a 2,100 lb Miata rides better on 800/500lb springs. Because right shocks. I'm talking ride quality... handling-wise it will run circles around a 993 in a very literal sense.

pp000830

I have had good daily driver experience for the last several years with the H&R Street Performance Coil-Over kit 29954-1 on hrsprings.com , both springs and matched struts for all four wheel-ends, cost $2000 or so if you shop around, I got mine on e-Bay.

This kit allows for setting the ride height front & back from the USA specification down through the ROW range, -30mm on to a greatly lowered height where other suspension component geometry limits come into play.

You can reuse the existing rear anti-sway bar down-links with this kit under normal height ranges. The only additional parts you will need for the job are 16 replacement M8 lock-nuts (900.380.005.09) for where the strut mounts attach to the body at the top.

Attached is a ride height chart for the factory springs. There are some 029 & 033 ROW spring sets that are lower than the US height but not stiffer like the 030 springs and will lower your suspension if your struts you decide on do not allow for adjustment in the rear. If you decide to do the FSD kits make sure they work with the lowered height springs.

911F1

Thats weird. I had the M030 springs matched with the Bilstein shocks before I had the H&R springs. The M030
springs were soft and didn't match well with the stiff Bilstein shocks. Felt floaty to me. Especially the front end. To each is own for suspension setup. Sorry OP this will probably confuse things even more for you.

Tlaloc75

My experience with M030 on Bilstein HD was not great. They were harsh and didn't handle as well as I wanted. PSS10 even set on 7/10 hardness are more comfortable and perform leagues better. Set at 1 they must be like pillows!

Cheekybird

Has anybody tried these re-engineered shock absorbers out yet? I would like to keep my ride similar to stock US as well. This model was designed for comfort after all.

https://www.porsche.com/usa/accessor...ckabsorber993/