Thoughts on Rear Subframe Braces

[Danimal]

Thanks, I am finishing up my suspension work and trying to decide if it's worth it "while you are in there." The car will be mainly street with occasional autocross or something similar to learn my limits safely. The set up is currently as follows.

- 2001 Boxster S
- PSS9s set a little lower than ROW M030 height (getting corner balanced and aligned in about a week
- New OEM strut mounts (Lemforder up front and Porsche in the rear).
- New Porsche brand strut bearings up front with new rubber inserts (old ones were trashed from bouncing on lowering springs)
- New Lemforder drop links all around (some were torn)
- Stock "S" sway bars
- Stock 17" wheels with Michelin Pilot Sport tires - 205 in front, 255 in rear (in the future i may do 225 in front)

My thought was to stiffen the rear with a subframe brace and not mess with sway bars for now. Perhaps thats wishful thinking

[Gilles]

Originally Posted by Danimal

My thought was to stiffen the rear with a subframe brace and not mess with sway bars for now. Perhaps thats wishful thinking

I believe that the rear brace is to stiffen the rear suspension (to help maintain the alignment settings while under load, specially when using sticky tires)

To adjust the over/under steering you need adjustable sway bars, but you also can start experimenting with the tire pressures on the front and rear axles as well to help reduce the understeering..