ca993twin

You have a great eye! This is one of the L.A. Times GP IMSA enduro events.

race911

Depends on the diff. Once you work with data (or even something simple like a Rumblestrip) it's amazing what you start understanding about setup and chassis dynamics.

But as I said above, no way trailing brake is a viable technique on a short wheelbase car running 185's all around.

911

Awesome!!! If this was in the late '70s (LA Times 6 hour enduro) then I think I might have been there. Was this the one that Peter Gregg lost 45 minutes in the pits and came back to finish in 6th place? What a drive that was!

911

Excellent point, Ken.

ca993twin

This photo was at the 1982 IMSA 6-hour enduro. We finished 9th overall, 3rd in GTU but ahead of every GTO car. I mourn the passing of that track.

race911

Glad I got to drive it once. But oh don't we most miss the "amenities"???

911

I spent a lot of my childhood at that track in the 60s when both of my parents raced with the POC. It's my favorite track. I'm glad I was able to do a Skip Barber day in a Formula Ford there in 1989 right before they closed it.

Congrats, Steve, on a great finish. Btw, is Nardi motors associated with Sergio Nardi?

swmic

Just for reference, I change out the stock springs and shocks on my 96 cab back in 04. The car had 16K on it at the time and drove like crap. The Monroes were toast even with 16K on them. One of rear shocks was completely blown with zero dampening. Needless to say, M030s, HDs, and a fresh alignment completely transformed the car.

Mark in Baltimore

Never knew that was your race car, Steve.

DJF1

Look at Gert's site ( www.carnewal.com) for suspension options. IMO with what you are asking from the car's setup the best solution for you would be to go with a coilover system like the PSS-10 which would give you street capable ride and adjustability to suit the car to your liking.

As others said above there are many things you can do to adjust the behavior,
RS adjustable bars will help as well, 245's up front will be fine and desirable, you can combine them with a 285 rear and a nice alignement/corner balance to suit your style.

My question to you is, how fat is your wallet?

ca993twin

Yes, Sergio and I were friends, and co-drove his RSR, raced against each other, and his dad, Angel Nardi did my mechanical work. Great people.

Back on topic for a moment... lack of sufficient suspension travel in the front (your shocks not correct for a lowered car, for example) will lead to AWFUL understeer.

s4senna

I did go on carnewal's site...good stuff...
the choice will be tough between pss10's and simply adding bilstein hd's...
I am curious on the difference in feel between PSS10's vs M030 and Bilsteins...
I am not sure I need the adjustability per say, I am pretty sure once the stock monroes are swapped for a good set of shocks, I'll be happy. once again, its neither a daily driver, or even a car I will track. I just want it to handle properly for the few times I drive it

my wallet is fat enough to make the car right for the driver that I am

s4senna

so, to this day, we've established that
I need new shocks or a coilover system
a strut bar
possibly better roll bars
wider front tires.

that's anywhere between 3 and 5k....

and now after looking at most of the 993 picture thread...I think I want to remove the front bumperettes, get euro lights and fog/duct combo....

why do I feel this is never going to end...

ca993twin

Oh... you have just begun to fall down the slippery slope.

You may find that the proper shocks with a good alignment is all you will need to fix the understeer issue. If your present tires are still good and fairly fresh, don't replace them until you've tried the shocks/alignment. If the understeer persists, then I would look for a stiffer rear anti-sway bar... perhaps with some adjustment holes

<edit> Make sure your alignment shop has the proper tools to check/set rear kinematic toe, and knows how to use them!

s4senna

thanks ca993 twin...

in fact I was going to ask you guys if you knew a good shop to do all that in the L.A area....