[ausgeflippt951]

Originally Posted by hobiecat

I've got 400lb springs with coilovers in the front. That's balanced against 30mm torsion bars in the rear.
Yes - it's pretty stiff, but you can still drive it on the street. I drove it to Mid-Ohio one year.......

As has been said before, torsion bars are a PITA. It took me 4 tries to get it right. By tries, that means
I had to drop the rear suspension unit and re-index the bars 4 times to get the ride height I wanted. Then
I used the eccentric bolt to make the final adjustments during corner balancing.

If you want that part to be easier, coilovers in the rear make setting the ride height 1000 times easier
and the stock bars weigh less. However, the extra weight of the 30mm bars is close to the bottom of the
car so the overall effect of the weight gain is minimized. Also - I'm kind of hard headed, so the more I heard people
complain about how hard it was to do T-bars, part of me just wanted to see if I could do it.

Don't forget sway bars. Make sure that you "match" them up too. I have a 30 mm up front (from a Turbo S)
and an 18mm adjustable in the rear. In hard cornering, these really help quite a bit.

New bushings really help as well. There are many choices out there that are far better than stock. Check out Elephant Racing....

In the end, my car can corner significantly better than it did when in "stock" condition, but at the same
time, it's nicely balanced and neutral - which is what I was going for. Street comfort was not a real factor,
but then it was never intended to be a daily driver.

If you don't mind me asking: do you suffer from understeer? IME, 30mm T-bars lend themselves a bit better to 350# springs. Then again, what sway bars do you have? I'd be hesitant to go with 400# springs + 30mm T-bars in an N/A since you don't really have many ways of inducing oversteer at that point!

Then again, it also depends on your driving style + other mods. My setup (350# + 30mm) is with a stock interior/panels/wt distribution, so YMMV.

Originally Posted by HoodPin

Regarding the rear suspesion, Koni coilovers is the way to go. Easy install, and easy corner balancing. And as I'm reading the rules, coil overs in place of torsion bars is allowed in all the 944Cup classes.
http://www.44cup.com/official/944CupRules-2012.pdf

Oh reeeeally. That is interesting; I didn't think that used to be the case.



As others have said, reindexing T-bars is a real PITA. However, with a basic knowledge of trig (and planning ahead when you pull it apart) you can *usually* do it in one try.

If it were my car to do over, I'd probably go with coilovers in the rear. Easier to modify spring rates, easier to adjust/corner balance.

That said, if your spring plate bushings are shot and you're going to need to pull most of it apart anyway, the advantage may not be as great as one might hope.


In the case of my car, I installed polybronze spring plate bushings while I was in there. Big help.