For those without the PSS9 setup, I am curious what people are using for spring rates for a Street/Track car. I am curious when enough is enough (too harsh for the street).

I just stiffened mine up 350F/500R, RS sway bars and TRG camber plates. I think this is pushing the limit for the street.

Thanks.

Stephen

I'm running 500 in the front and 700 in the rear. RS sways and Porsche Motorsport monoballs.

It's stiff, but not too stiff. The MOTONS do a great job of soaking up the bumps. Go from full soft to full stiff in a matter of seconds with the adjustable shocks. Car goes from a sportscar (proper Porsche) to a racecar in seconds. I love it. Might be a bit much for the daily if you don't have anything else to drive.

I ran 800/1200s with my Motons. Didn't feel any stiffer than most cars. Well maybe a little.

Clearly one of three things is going on here:

1. I am a wuss;

2. you guys are super hard core; or

3. those Motons somehow make your spring rates feel a lot less stiff.

SF

600/900's on my Motons. From what I understand, the Motons have diffeent pressures and valving than the Decarbon design of the Bilsteins with less preload and stiffness.

Motons just have superior dampening over other shocks I have seen (valving and nitrogen pressure) Then can make very stiff springs very tolerable for the street. I have sold a number of set to guys that use then there, as well as many of the folks here on Rennlist. THEY AIN"T CHEAP THOUGH. Buying the best costs $$$. And for the track, they are unreal....

Stephen:

Spring rates can vary according to the application and the experience/skills of the driver,....... Further, one can change nitrogen pressures for the "mission" at hand.

In the genre of street/track cars, one balances ride quality against handling while not making the car to hard to drive with overly stiff springs. Factors to be considered when choosing spring rates are:

1) Usage: street- street/track-competition

2) Vehicle weight

3) Aero package

4) Wheels & tires

5) Driver experience and skill

Since Motons were brought up in this thread, I'd offer that these can be configured to work well for street, DE use, or racing. Due to major differences in the design of the valving stack and how the nitrogen is used to pressurize the shocks compared to other like items, these can be reconfigured to ride better than PSS-9's with the proper spring package. We make internal (and some external) changes that make them suitable for street use,......

Given the recent PSS-9 price hike, Moton Clubsports are not as expensive (relatively speaking) as they were,...

So Bob's running 800/1200 and Mark is running 600/900's on my Motons... Seems like a big difference there... I hear you can run a lighter spring with the M's... I was going to go with the PSS9 kit but why spend 3 g's for something I will outgrow on the track.

Where did you guys mount your remote cannisters for your shocks?

Steve lot's of info on your site but it could certainly use a facelift.

IMO, you will not likely "outgrow" PSS-9s or JIC (the less expansive adjustable choices) in less than 50-60 track days. I would not view Moton's as a good shock for a novice unless you have a really good advisor to set up the car for you.

I think for novice to intermediate drivers (or those with class limitations) the single adjustable shocks without external reservoirs are fine. I have PSS-9s on my 993 and run them at either full soft (9) or slightly firm on the street. I ran them at about 3/1 for track use, when I tracked the 993. I have JIC's on my 964 and have not yet "outgrown" them.

i concur with tom. to outgrow pss9... maybe 100-150 track days. MAYBE.
i have motons, unless you have a dedicated mechanic who is willing to travel to all the tracks you frequent and dial them in for you, you are so out of luck. too many variables: nitrogen pressure, rebound, compression and spring rate.

Good thing I have an awesome mechanic... I like taking the most complicated and figuring it out rather than working my way up slowly anyway. I was thinking about the 2 way adjustable club sports, not the 4 way adjustable race shocks.

This is an old resurrected thread, but I'll post anyway...

I mostly agree with Tom & Mooty. Even if I started trailering my car, I wouldn't outgrow my PSS9's until maybe 70-90 days.

Tom didn't you write in another Susp. thread you wouldn't get the PSS9 kit again?

As for the resurrected thread I decided to bring it back instead of getting flamed or the typical "This has been discussed before, look it up" response.. There's a million posts about PSS9's not so many for Motons.

I wasn't knocking on PSS9's I've just been searching all the suspension threads for some info and suggestions are a bit conflicting... ViperBob has some really good posts.. The outgrowing the PSS9's was a members comment. As I still have my stock setup I'm trying to figure out what to go with.

I do appreciate all the input... Mooty, do you spend all your downtime at the track changing setups? Or for beginners can you have a street setup and a track setup thats easy to dial in...

I "outgrew" my PSS9s at about 60-70 days IMO. My computer crashed in the fall w/ my DE data so I have to figure out how many track days I have again by the paper trail I have at home. I think I am at around 90 days now.

Anway, my rears lost thier ability to adjust late last year and one is now broken and leaking oil. Luckily (I guess) I already have an order placed for DA JRZs. I don't think they will be in, in time for the DE next weekend though. With that being said I feel the PSS9s were limiting me for sure at around 60-70 days, and that as a driver I am ready for the DAs, but .....I am getting ready to hit a big wall when it comes to duel adjustments. I have a great shop and they will help, but I know it will take quite a while for me to even approach the performance envelope of the JRZs.

From what I can see there is a BIG difference between knowing how to get the most out of DAs vs. SAs. SAs are relatively easy if your in tune w/ your car. DAs will be interesting for sure. My butt is tuned well enough I think to know what I want the car to do better, I just need to figure out what to adjust and how many clicks. My driving ability is better than my suspension set up knowledge....but I figure I can learn it.

My shop is recommending 600/800 for my 2,780 RSA. I would like to go 700/900 I think, but really don't know. Since changing springs isn't too difficult I will probably go w/ 600/800 and go up from there as needed. My home track Summit Point is super bumpy right now, but is getting paved this fall, so hopefully that will smooth it out some and if it does I will go stiffer.

I keep hearing 2-4 seconds vs. PSS9s for DAs and 1-2 for Hoosiers vs. my RA-1s. My guess it will be 1 second each on a 2 mi. track. I can't wait to find out, although I will stay w/ the Toyos for a few events until I get use to the JRZs.

i'll stir the pot and say that the Motons inspire much more confidence in me and resulted in a three to four second drop in my lap times at faster tracks such as VIR and Watkins Glen. I know that part of this has to do with my skill as a driver (which grows at the pace of mold), but one cannot deny the importance of driver confidence and decreased lap times.

Another PSS-9 data point: at the bumpy apex of Turn 1 at Summit, I would get this weird rear porpoising with my PSS-9,TRG sway set up and 18" wheels. Never experienced this with my 17" wheels. The Motons are awesome but require a significant amount of time to get dialed in. It took me over a year and seven plus(?) track events before I got the car where it is now, which is an utterly forgiving and fast machine that I can push very hard in the corners.