bellspeed

Can someone give me an idea of alignment specs for autocross on 98' boxster? Also what tire pressures for autocross front and rear?
Thanks

gomarlins3

Bump since I now (almost nine years later) have the same two questions on the same car.

NJ-GT

wheels size, diameter, offset? spacer used? tire sizes used? stock car or modified? modifications?

gomarlins3

Sorry. Completely stock and R-S3's on the stock wheels. 16X6 fronts and 16X7 rears are the OEM wheel sizes. I am running CS this season so there isn't much I can change.

NJ-GT

Ideally you want the same size (width) tire front and rear. The Boxster had optional 17" wheels not sure if it had optional 18" wheels. You want to run the widest tire that fit on those wheels.

Max Out front negative camber (you might get -0.8 or something around), be sure it is even on both sides. At the rear run the less camber possible (rear goes from -1.0 to -2.0 run the closest to -1.0 even on both sides).

Toe: 0 toe at all corners.

Hit gas and stay on the gas as much as possible, try not to lift, the car is fun. I had a 01 Boxster S, and a 99 Boxster 2.5, they were fun cars.

For RS3, I would start at 36 psi hot all around, and drop to 32 psi on the axle that needs more grip (typically the front axle, as Boxster pushes).

This is a good baseline, then fine tune from these specs.

gomarlins3

Thank you sir. I have taken some notes.