I have a 993 RSCS replica I am turning into a race car. I am thinking about going to 800/1000lb springs. Any thoughts? I am going to get the shocks revalved to match either 600/800 or 800/1000 and don't know if I am going too stiff? Is it track dependant? Will the car be more loose with stiffer springs?
TIA

 

You'll get lots of opinions on this subject. Me, I'd go for the 800/1000 pounders at least. With a quality 2 way adjustable shock, you can properly dial in the compression and rebound, and your car will handle great. It is acknowledged that the geometry of the front suspension is not optimal, and the more you limit it's travel, the less negative affects it has. With stiffer springs, the car will be twitchier, but will set faster and be much quicker through transitions. IMHO you won't be giving away any grip if you have it setup right.

Now for the other side.....................

 

Hi:

Without knowing your experience and skill level, its tough to recommend a 800/100 spring package, especially with non-adjustable shocks.

A stiff car requires more experience to "read" its intentions and a 800/1000 setup can be loose and tough to determine the car's intentions without a lot of seat time. Personally, I'd start with something softer and drive that for a year. Ultimately, springs are cheap and this process might save you several unintentional spins.

 

I have about 6-7 years of track experince 2 diff. race licenses, and thousands of laps at many different tracks across country. Albeit I am a student of life, and driving no exception I have been able to get 1:37 at Mid Ohio with a "Street" suspension, perhaps the 3.8L you built helps? The car has a fully welded and gusseted cage and BIG sway bars. I feel like the susupension really needs to be stiffer.

 

What did Fishman have in his 993? They were pretty stiff and he said it worked well, I'd ask him (or hopefully he responds).

BTW, how much this type of thing (re-valving & new springs) costs and is it effective with PSS-9 opr should I just wait and get the Motons?

 

Larry, you have 964 race car? are you running motons, penske, jrz?

 

I understand you are coming up my way this week? small world. it is about $680 to revalve and new springs. tough to compare to motons. I know motons are better but race budget hugely tight

 

Given your experience, I would go with at least the 800/1000 combo. I ran 600/800 springs with my JIC suspension (adjustable), and was going to move to 800/1000 if i had kept the car (the shocks can handle up to 1000lb without re-valving). New springs were only $80 a piece a year ago, and I would have only needed two with a move of the rears to the front. I ran them with H&R 24/26 sways.

IIRC, the 993 Cups had 1000/1300 springs.

 

3 way Motons, with springs more like the 993 cup. I have been able to set it to run well on both smooth and bumpy tracks, but you really need to pop for adjustable shocks. Otherwise your car will probably have the wrong dampening. I do not know how one could set the valving correctly for very stiff springs when I need different settings for every track.

 

No plans to come there, maybe you're mixing up me with someone else?

Thanks for the price info, I want to get Motons also but the budget is my problem as well...

If I get stiffer springs I'd go with 1000-1100 & 1300-1400 but I would rely on more experienced to helm me out to get the good combo.

 

Larry, was going to try to get away with compression adjustable only for this season. the revalving will be setup for the springs and will still have some adjustability.

this pic is from last season

http://www.nasaforums.com/viewtopic.php?p=114526#114526

 

Sorry Finn, thought you were on your way as part of a GT3 caravan trade deal. thanks for the feedback about the springs. I am really tempted to go 800/1000 esp if I ever go to a full slick tire instead of the R6.
C

 

I think that you car looks pretty good in the picture, but it is hard to tell since I do not have a shot of it at rest. Here are 2 pics of mine, one at rest, and the other in a 2nd gear corner at Daytona, pulling about 1.3Gs. Note how there is very little compression on the outside suspension, even though it is very heavily loaded.

 

I don't think that's entirely true, Finn.

Here are some of Greg's comments after the Sebring '02 Club Race:

 

I think the issue I had then was more due to the shocks and getting the double adjustables set correctly. That race was my first outing with the higher rate springs and new DA shocks. Lots to work on in addition learning Sebring.
Once I was able to tune the shocks I was happy with the selection I made. The year prior I had 650/800 and it was too soft, but it was much more forgiving.