i need your educaded opinion on this,i will be replacing the springs within the next month but i can't decide between the 200 or 250 #s springs ,my main concern is the ride as this is pretty much for the streets.I already ordered some Koni sports and as I understand they will give a firmer ride.I'm leaning towards the 200#'s,if I ever decide to auto x the car will the springs be adequate?also what size t-bars will I need ,25 or 26mm?Thanks for your help.

 

Leonel: I recently replaced the shocks all round and the front springs on my '87 944 N/A. I researched a lot and found the short Weltmeister 200 #'s springs with Bilsteins was a great compromise for smooth ride and good firm control at A-X's. The 250's will jarr your molars out over tiny bumps ( I rode in a few 944's with 250's... hard on my teeth), and the Koni's tend to ride more firm than the Bilsteins. So I went with the performance, shorter springs and slightly smoother shocks. My car sits about 1.5" lower in profile, is good and stiff for A-X's, and is still very comfortable on the freeways. Make sure to change out the bushings on your sway bars if you are worried about stiff turning agility at A-X's. Use rubber bushings, too. The others are rough riding. Finally, torshion bar replacement may not be needed if you align and corner-balance your car after the springs and shocks retro-fit. The torshion bar replacement can be a costly unnecessary job.

Just my thoughts! Good luck!

 

Correct me if I am wrong, but the 944 NA came with 23.5mm rear torsion bars. This is the equivelent to about 125lbs/in rear wheel rate.

You probably want either 25.5mm (175lbs/in) or 26mm (189lbs/in) rear torsion bars. If you want the 25.5, I think the only way to get it is off of the Turbo S. All the aftermarket bars are 26mm.

 

How dificulit is to r/r the torsion bars,can it be done in a half a day?will the firmer Konis by themself improve the handling enough so i can skip doing the springs & t-bars?A lot of questions I know but i want to get this right the first time,thanks

 

Tabor,
You are correct about the 23.5mm rear T-bar. My question is what friggin formula are you using to calculate the wheel rate? I have 200lb coils in front just like the ones Leonel is considering. I'm thinking about playing with the rear suspension now. At the very least I will drop the rear about an inch to the eurospec height.

 

I went with 250s, and still have all of my fillings. For the time being, I have the stock rear t-bars, but upgraded to the M030 adjustable swaybar to bring the handling back to neutral (the stiffer springs cause lots of understeer without stiffening the rear somehow). My car is street only, and a daily driver at that. Eventually I plan to upgrade to 27mm t-bars.

http://www.tech-session.com/Paragon/...comparison.htm has a chart of torsion bar sizes to wheel rates.

 

cobbs - check out the tech section of the paragon-products.com site. I beleive there is a wheel rate reference chart for the rear suspension.

 

Hi Guy's
Link below might be usefull when playing around with the suspention parts.. http://catalog.com/susq/other/stuning.htm
Have fun