After market Springs & Shocks for 355

You know that the suspension on the F355 is completely adjustible, as delivered. So you can dial in any particular combination of ride height, camber, caster, toe at both ends of the car with the stock accoutemain; did you not?

So, what do you want new springs for:: a) ride height, b) stiffness, c) camber control, d) dive control, e) squat control?

You are aware you need to match the shocks the the springs?

You are aware that you should match the anti-roll bars to the springs?

I recomment NOT street racing, this is NOT waht Ferraris are built to do well, and you can only loose.

 

Mitch is correct. Also, try posting same question in the Texas Region of F-Chat and I'm sure someone will help. Norwood (a sponsor) is in Texas and builds engines...not sure about shocks / springs / etc.

 

www.deltavee.com

Rob Schermerhorn on this message board knows his stuff!

 

I thought as much! <What?> As you lower a car with short/long A-arm suspension, the roll center is lowered somewhat faster than the car is lowered. In the stock location the lever arm between the rool center (4.2") and the Center of gravity (14") is ~10". Lowered 1" the roll center is now 2.6" while the CoG is 13.2", giving a lever arm of 11". So the car is 10% softer after being lowered than before! Just exactly the opposite as to what you want.

Since you lowered the car 1" you should be using springs that are 25% stiffer (4.2" compared with 3.2" has 3.2" as 75% of 4.2") with respect to the new roll center lowered 1.6" (about 35% total) just to keep the thing from bottoming on the road at the same force levels at the stock car would on stock springs.

A F355 is a little on the soft side in stock condition, especially at the rear. Lowering it does it no go whatsoever, unless you want to spend a bunch of money fixing what was not broke to begin with.

Its your money. Would it not simply be easier to raise the car back up to where it wants to be?

 

I would not race a Ferrari against/with the Jap cars at any time. This is not to say the F-cars are not as fast as the Jap cars. But they are just two completely different kind of cars.

Ferrari is in a league of its own !!!

The Jap cars just do not deserve to be compared with Ferraris.

The Jap cars should be happy enough just to be parking next to a Ferrari.

 

Have a good flight and safe landing.

regards
mickey

 

What a cop out! It's nice to be in a league of our own, unless that league happens to be in LAST PLACE! If the car isn't as fast as you'd like, do what it takes to make it faster, OR GET SOMETHING ELSE!

 

Thanks BB,

BTW, it's dot net. www.deltavee.net

I can rebuild to stock, or revalve for racing. I can save you over 70% of the cost of new dampers by rebuilding.

Yes, lowering the chassis certainly affects handling. For track day tuning, increasing spring and damping rates is advisable, in addition to lowering. Dampers must be matched to the spring rates, and chassis corner weight and unsprung weight.

There is no need to go with aftermarket shocks, as the originals are rebuildable, and tunable.


Best regards,

Rob Schermerhorn

 

Rob:

Do you tune these shocks by oil selection or by altering the oil metering internally or both?

 

I use oil approved by Bilstein. I don't normally change viscosity of the oil. I have developed internal valving to suit sporting and racing applications for those drivers who desire more responsive cornering at some sacrifice to highway comfort.

I also perform rebuild service to original specification by replacing worn components, including the oil.

Thanks,

Rob