WCM Largest Wheel size/Tires and corresponding offsets ?

[Surfmonkey]

Wheels: I am thinking about replacing the frt and rear 17x7 wheels on my WCM Ultralite. Current offset on these stock wheels are 40 frt and rear.

 

The always talented Jim Rankin suggested I get 17x8 Frt and 17x9 R wheels. My question is what should be the recommend offset for these sized wheels?

 

Tires: I have 215x45x17 wheels front and rear. How does 225x45x17 frt and 245x40x17 seem appropriate for easy canyon carving?

 

And what tire does the 7 group recommend? I have Nittos on my P car and the side walls are just to stiff for a 2000lb car. I am looking at a UTQG rating softness of 140 to 180.

 

Any thoughts would be welcomed.

[WestTexasS2K]

YOU could use 17x8 all around if you want to run 22 and 245 on the rear. If you go with a 275 on the rear then you can use the 9 inch. Usually 35-38 MM offset works well.

[RGTorque]

regarding tire, i run nitto nt05 on my 18x8's all around. 235 front and 245 rear. tire wall is SUPER stiff. would not do again.

[Mondo]

I'm running 17x8 & 17X9 (offset 35mm in front & 43mm rear. Tires are 225/45 & 275/40. It's probably more show than go but I like flush filled out fenders. I don't know if my axle width is any wider/narrower due to the STI vs WRX rear end. I'm going to go small tires soon, they take a long time to warm up and I'm sure lighter would be better.

Edited July 8, 2015 by Mondo