Rear GT3 control arms and sway bar, worth it?

[truegearhead]

Stiffening the front bar definitely adds understeer. I’m running it on the second setting. As far as what’s holing me back I’m not sure, I experience a little understeer at low speeds and oversteer at high speeds. Overall it’s pretty balanced.

Steve, I used to run M030 with a front GT3 bar and I think it’s a stronger setup than my KW2s. It’s hard to beat a factory setup I guess

[steved0x]

Originally Posted by truegearhead

Stiffening the front bar definitely adds understeer. I’m running it on the second setting. As far as what’s holing me back I’m not sure, I experience a little understeer at low speeds and oversteer at high speeds. Overall it’s pretty balanced.

Steve, I used to run M030 with a front GT3 bar and I think it’s a stronger setup than my KW2s. It’s hard to beat a factory setup I guess

Sounds like you have a balanced setup, going to the adjustable rear Tarett GT bar would increase oversteer I think since it would be stiffer than stock or M030.

If you got the rear bar and got too much oversteer I guess you could go 1 hole stiffer in the front and experiment until you got it balanced again, at which point you possibly may have less body roll and lean?

I'm trying to think about when I get oversteer and earlier I gave a couple of examples of trail braking on corner entry and lifting mid corner, I forgot to say, I also get oversteer when powering out of very tight/slow turns when I'm in 2nd gear.

Do you have an LSD? I have heard that an LSD can increase understeer in slower turns (due to locking the rears?) and also tend more toward oversteer in faster corners (both rear wheels spinning instead of just the unloaded inner wheel?) I don't have an LSD so I don't know

[Lemming]

I have not added the GT3 LCA's to the rear of my SPB as I have plenty of camber adjustment available. I do run the tarett gt3 bars front (2nd from full hard) and rear (softest) with 450F/500R springs (PSS9s).

[truegearhead]

Originally Posted by Lemming

I have not added the GT3 LCA's to the rear of my SPB as I have plenty of camber adjustment available. I do run the tarett gt3 bars front (2nd from full hard) and rear (softest) with 450F/500R springs (PSS9s).

You’re running much stiffer springs than me, I think this is another problem with my setup. I’m running 400F/285R (swift springs on KW2 coilovers), I’m a little lighter than spec Boxster minimum weight at 2500lbs w/driver. I’ve always thought a little softer setup works best for me but maybe I’ve gone too far