understeer issues

[bimmerboy4444]

getting more understeer on the track then i would like tips on getting rid of it. I only have 4 lapping days experience so it could be my driving, so driving tips would be helpful too.

85 325e (24v swap in the work's)

-H&R sports cup springs and dampers
- Eibach Anti-Roll Kit 20mm front 16mm rear 3 adj positions (don't buy this quality of rear end links was shit didn't last a year and wasn't much of a upgrade over stock 18mm front:hitler:)
-M3 offset delrin lower control arm "bushings" lol
- IE street rear subframe bushings
- IE urethane rear trailing arm bushings
- rear subfram is alignment adjustable set to stock camber and toe right now
-z3 rack swap
-17x7.5 40 offset with 25mm spacer
- 205/40/17 nitto nt01

I think if i get front camber plates should help because the outer half of the tier shows all the wear. For lake of a better description clumps of rubber are left stuck on the inner half of the tread.

vid of me driving not much you can tell from this but fell free to analyze the hell out of it. http://www.youtube.com/watch?v=2LRZ8odnriQ

[AndrewBird]

If the outside of your tires are wearing, then you either have positive camber (unlikely unless something is bent) or too much toe. Probably want to get an alignment. Might solve a lot of your problems.

Also, you might have had the air pressure in the tires too low, cause the side walls to roll over.

[jlevie]

Understeer results from less grip by the front tires. Front camber, relative sway stiffness, and weight balance can all affect understeer. Setting the rear sway stiffer or using a stiffer rear sway will reduce understeer as will increasing front camber. You can play with spring pads to shift weight to the front wheels (or the fiddle with cross weights).

[bimmerboy4444]

If the outside of your tires are wearing, then you either have positive camber (unlikely unless something is bent) or too much toe. Probably want to get an alignment. Might solve a lot of your problems.

Also, you might have had the air pressure in the tires too low, cause the side walls to roll over.

I know the alignment is good I set the toe in/out it to stock. air pressure mite be to low i run 30 F 31 R

[bimmerboy4444]

Understeer results from less grip by the front tires. Front camber, relative sway stiffness, and weight balance can all affect understeer. Setting the rear sway stiffer or using a stiffer rear sway will reduce understeer as will increasing front camber. You can play with spring pads to shift weight to the front wheels (or the fiddle with cross weights).

so if i loosen off the front bar it will give the efect of a stiffer rear bar? both sway bars are at the stiffest setings right now.

[bmwguy325is]

so if i loosen off the front bar it will give the efect of a stiffer rear bar? both sway bars are at the stiffest setings right now.

Kinda ya..... Or if you are at the max setting on the rear than yes.
Now remember that outer holes are softer settings. distance time force = torque.

[bimmerboy4444]

Kinda ya..... Or if you are at the max setting on the rear than yes.
Now remember that outer holes are softer settings. distance time force = torque.

yeah i got that don't let my spelling and grammer fool you i am not THAT stupid lol

I am going to try picking up the front tier pressures abit and soften the front sway bar and see whar that takes me thanks every on for your input