Sway Bar Upgrade

[bcrdukes]

I'm running the factory 17" wheels on my Boxster S - 225/45/17 (front) and 255/40/17 (rear.) I'm quite happy with the setup.

You'll need aftermarket adjustable drop links for the GT3 style sway bars. The stock ones won't work because they wont' reach the mounting holes and may potentially snap under excessive load and accelerated wear/tear.

I'm afraid I don't know anyone (personally) who runs a 275 or 285 size tire in the rear but hopefully someone on the forum can chime in.

[BrantyB]

Originally Posted by bcrdukes

I'm afraid I don't know anyone (personally) who runs a 275 or 285 size tire in the rear but hopefully someone on the forum can chime in.

That would be me!

Nankang AR-1 235/40/18 front & 275/35/18 rear; with 24.0mm M030 front bar and 19.6mm M030 rear. And I love it for autocross. But I do prefer a bit of understeer, the bigger rear bar helps balance out the front to my liking.

Rear wheels are 9" O.Z. with 43mm offset. Fitment is fine and without issue, but I tried it with 5mm spacers and it rubbed, so there's not a ton of room.

[ike84]

Originally Posted by BrantyB

That would be me!

Nankang AR-1 235/40/18 front & 275/35/18 rear; with 24.0mm M030 front bar and 19.6mm M030 rear. And I love it for autocross. But I do prefer a bit of understeer, the bigger rear bar helps balance out the front to my liking.

Rear wheels are 9" O.Z. with 43mm offset. Fitment is fine and without issue, but I tried it with 5mm spacers and it rubbed, so there's not a ton of room.

With the spacers installed where did the rear tires rub? Outter wheel well?

Sent from my POCOPHONE F1 using Tapatalk

[BrantyB]

Originally Posted by ike84

With the spacers installed where did the rear tires rub? Outter wheel well?

Sent from my POCOPHONE F1 using Tapatalk

Yep. Not a lot, but the Nankang's have a wide section width and the extra tire height probably didn't help. Rear camber is 2.5deg on stock suspension.

[986tate]

I put it full stiff because that’s what the other guy did, solid logic, right?
Seriously, I was going to start full soft and inch it up but when I saw what he’d done I figured I could handle it. Babied it for a bit, then flung it around corner pretty good last week without issue so I think it’s alright.

[986tate]

Front isn’t adjustable. It’s the same shape as stock so they couldn’t add holes to change leverage. Uses stock drop links though, so that is nice