944 track car
04-05-2009 | 09:10 AM
#1
Thread Starter
Pro
Joined: Nov 2006
Posts: 505
Likes: 8
From: Bangkok
944 track car
I'm crossposting from the registry post. Building the 944 for track use only. Still figuring out if I need drive shafts when I want to put the 968 lsd box in the 944S2.
Also wondering about a good base set up for spring rates. Currently looking at KW with 90 fr and 140 rear, equivalent to 500/800 which seems imbalanced to me, Should I go 600 front?
Thanks
Here's the link
https://rennlist.com/forums/924-931-...4-project.html
Also wondering about a good base set up for spring rates. Currently looking at KW with 90 fr and 140 rear, equivalent to 500/800 which seems imbalanced to me, Should I go 600 front?
Thanks
Here's the link
https://rennlist.com/forums/924-931-...4-project.html
04-05-2009 | 05:55 PM
#3
Nordschleife Master
Joined: Oct 2002
Posts: 8,985
Likes: 3
From: Vancouver BC
This is Big Dave's setup for the KW V3 kit:
(Stolen from this porscheclubuk forums thread)
http://www.porscheclubgbforum.com/tm...5&mpage=1&key=
(You'll need to create an account, no membership# required.)
Originally posted by: Big Dake UK
AS far as i know the standard springs supplied in the "kit" are ...
Fr,, 60N/mm or 335lbs/inch
Rear,, 50N/mm or 279lbs/inch..
The helpers are as stated in lalis post...
BUT ive fitted stronger springs in my set up...
Fr.. 80N/mm,,,447 lbs
Rear 70N/mm,, 391lbs...
I personally wouldnt go any stiffer than this "now" as i find it a bit uncomfy on the road...BUT,, its fantastic on track..Also after speaking to a VERY well respected + "seasoned" race car preparer. He recomends this as the strongest spring to fit to a S2 or otherwise....
Also these are THE stiffest that is recomended by KW testers for the V3 "standard" kit , unless its valving rates are changed at the factory....
Bump + rebound i set at HALF a turn OPEN from FULLY closed...Its easy to remember it that way...
_____________________________
Dave W.
Porsche 968 [ Enhanced ].
BMW 330i Sport Touring.
AS far as i know the standard springs supplied in the "kit" are ...
Fr,, 60N/mm or 335lbs/inch
Rear,, 50N/mm or 279lbs/inch..
The helpers are as stated in lalis post...
BUT ive fitted stronger springs in my set up...
Fr.. 80N/mm,,,447 lbs
Rear 70N/mm,, 391lbs...
I personally wouldnt go any stiffer than this "now" as i find it a bit uncomfy on the road...BUT,, its fantastic on track..Also after speaking to a VERY well respected + "seasoned" race car preparer. He recomends this as the strongest spring to fit to a S2 or otherwise....
Also these are THE stiffest that is recomended by KW testers for the V3 "standard" kit , unless its valving rates are changed at the factory....
Bump + rebound i set at HALF a turn OPEN from FULLY closed...Its easy to remember it that way...
_____________________________
Dave W.
Porsche 968 [ Enhanced ].
BMW 330i Sport Touring.
http://www.porscheclubgbforum.com/tm...5&mpage=1&key=
(You'll need to create an account, no membership# required.)
04-05-2009 | 06:02 PM
#4
Nordschleife Master
Joined: Oct 2002
Posts: 8,985
Likes: 3
From: Vancouver BC
I'm going with the same front setup:
20Nm (helper) + 80Nm (main) = 100Nm (total) or 558.8lbs front spring rate.
for the rear, I'm deleting Torsion bars, so:
10Nm (helper) + 90NM (main) = 100Nm (total) or 558.8lbs rear spring rate.
I might put a slighty stronger rear spring to get up to 750lbs-800lbs.
If I go any stiffer than that I would upgrade to Penskes or Motons before changing the springs.
20Nm (helper) + 80Nm (main) = 100Nm (total) or 558.8lbs front spring rate.
for the rear, I'm deleting Torsion bars, so:
10Nm (helper) + 90NM (main) = 100Nm (total) or 558.8lbs rear spring rate.
I might put a slighty stronger rear spring to get up to 750lbs-800lbs.
If I go any stiffer than that I would upgrade to Penskes or Motons before changing the springs.
04-05-2009 | 06:41 PM
#5
Drifting
Joined: Dec 2005
Posts: 3,082
Likes: 9
From: VA & NC
The correct spring weight is dependant in part on the weight of the car, your dirving skill, what wheels and tires you're using and other suspension components to name a few things for consideration.
It is not a one size fits all scenario.
Since my car is several hundred pounds lighter than a PCA stock class I don't need near the springs to have the same effective spring rate.
It is not a one size fits all scenario.
Since my car is several hundred pounds lighter than a PCA stock class I don't need near the springs to have the same effective spring rate.
