allergic2milk

With Koni's and weltmiester front springs (250 lbs) the car would be prone to understeer, besides changing the koni's stiffness, can i run a larger 19mm sway bar in the rear and leave the front alone and see improvement in the handeling?

Right now i just dont have the the time to get into reindexing new torsion bars.

tifosiman

You'll still have a lot of understeer when pushing it.


(no pun intended)

(OK, well maybe just a bit)

sharky47

Tifo - what size difference is there between a late 944 rear torsion bar and a late 951 torsion bar if both cars are stock?

Trucho-951

Understeer is not always a bad thing. What is your intended use? Street driving only, auto-x, DE's?

Serge944

250# front and a 19mm rear set on the stiffest setting will probably suffice. Do not try to compensate for unbalanced spring/torsion rates with damper valving. Set the shocks so that the suspension is controlled without being over damped.

IMO, understeer sucks because it is very difficult to correct. At least a suspension set to neutral or slight oversteer can be be corrected with throttle application/counter steer.

J Silverman

You can correct understeer with the throttle just like oversteer. Coming from a FWD nose heavy car I can tell you all about it.

Trucho-951

Well, you won't be setting the fastest lap with an understeering car, but it will keep you safe. But if you find that the car understeers exessively, then untill you upgrade the torsion bars, you might want to play with vehicle height, i.e.,try and lowering the front a little bit, set the front koni's to full softt, and raise the rear a little bit, the idea here is to shift the center of gravity a bit forward to help the front end stick.

allergic2milk

Well stock, the car understeers underquicker turns and tends to oversteer on the slow entry and quick exits, but thats all driver related

I was just wondering if the sway bar upgrade could assist the understeer and make it more reasonable.

Autocross basicly every event and track days as often as the check book allows

upcruiser

I have nothing of value to add, but I have a set of 250# springs as well for the front and have been wondering the exact same thing. I was hoping that if the understeer was a bit minimal, that I could counteract it a bit with tire pressures.

ivai

The shocks make a pretty big difference too..

I have 250# springs up front and 29mm torsion bars in the rear.. 26.8mm and 19mm adjustable sways front and rear, konis all around. When I first put the springs/bars in (the konis had been in the car some unknown amount of time), the car STILL understeered like crazy, and didn't even seem to handle better at all than stock.. at the track anyways. Then I swapped in new rear konis and put them on full stiff because I was so frustrated with the understeer.. now it oversteers like crazy... when pushed to its limits, which isn't often on the street.

Bottom line is that if you're just driving on the road, you can easily have an unbalance setup and it will still seem to handle well, its just that the truth comes out at the track. If you're only driving on the street, 250# springs (maybe with some adjustments to the konis) should be fine. Otherwise I've heard 26 or 27mm torsion bars be recommended.. However, if you're like me at all, you won't want to "only" upgrade to 26mm torsion bars when you go through the hassle of taking apart the torsion bar assembly.. in which case you'll want to prepare for higher spring rates up front too.

FYI: I'm preparing to put 350# springs with new konis up front, and maybe go with a 30mm sway bar if it still oversteers too much.

My .02