Spring rate

[F.C.]

Does anyone know what the spring rates are in lb/in for front and rear on standard suspension?

[356Speedster]

Suspension has changed quite a few times over the yrs..... well the dampers have, not sure if the springs have too? You could ask the factory, or Jonny Mac knows what they are, as he's spec'ing some higher strength ones for me at the moment

[Ult-Jim]

I'm interested in seeing the dyno graphs of the Factory shocks absorbers tested. Its a topic I'm interested in researching further.

[V8Dom]

Spring rates are printed on the springs along with diameter

[ROWDYRENAULT]

I have the rate sheets that Koni did for me when I had Konis built for the GTR, After a couple of leaks on the Intrax shocks. If you send me a E mail,I will send you a copy of the work sheets. I would post it here but I believe its to much detail for this format. Lee

[Ult-Jim]

ROWDYRENAULT said:

I have the rate sheets that Koni did for me when I had Konis built for the GTR, After a couple of leaks on the Intrax shocks. If you send me a E mail,I will send you a copy of the work sheets. I would post it here but I believe its to much detail for this format. Lee

PM sent. Ult-jim.

[gt5594]

Same spring rate question to Richard last year gave:

Front 350 lb/in
Rear 500 lb/in

on standard car

Hope this helps.
Andrew

[F.C.]

gt5594 said:

Same spring rate question to Richard last year gave:

Front 350 lb/in
Rear 500 lb/in

on standard car

Hope this helps.
Andrew

Marvellous,
Thanks

[356Speedster]

Hi folks..... as it happens, I swapped out my std springs yesterday. My factory std rears were marked 600lbs (markings on the front had worn off, sorry, but I'd guess 400-450lbs maybe?), so this suggests there have been changes over the yrs. My suspension is the double adjustable gold dampers, that were used until recently.

[Ult-Jim]

From my research so far, and I my be completely wrong, but I believe it is important that spring rates are matched with damper force and the relationship between the two is critical. The damper is there to control the spring's motion. In the past we have heard of stiffer springs being used, especially for track work, but actually a stiffer spring should be combined with a stiffer damper. With dyno analysis of the damper the optimum spring can be chosen.

I welcome the factory to comment on the development & variation of damper & springs units with the evolution of the car and dyno results if test have been made. At a guess three way adjustables will be available in the next 12 months to handle the additional power in the new cars, especially for fast compression effect of pot holes and uneven road surfaces, plus acceleration squat and brake dive.

[F.C.]

Not changing the spring rate at all.
just need shorter springs is all.

[Storer]

Somebody must be going for height adjustable suspension then if you need shorter springs!!!!


Very cool.



Paul

[V8Dom]

or slamming it on the floor to get stopped at speed humps hahhahaha

seriously .. has anyone fitted hydraulic lifters on intrax units? if so id love to know more please

thanks dom