Will 18x9 fit on the front?

[Johnny Danger]

Originally Posted by Topless

Unless you are running a 3.6L or turbo you are probably nowhere near 300rwhp. Get it on a true dyno so you know what you are working with. Oversized wheels can work well in AX but slow you down on large tracks. Too much unsprung, rotational weight and straight line rolling resistance. The fastest Boxsters in SoCal are running 245/275 tires.

+1 on that !

[shadrach74]

Originally Posted by Topless

Unless you are running a 3.6L or turbo you are probably nowhere near 300rwhp. Get it on a true dyno so you know what you are working with. Oversized wheels can work well in AX but slow you down on large tracks. Too much unsprung, rotational weight and straight line rolling resistance. The fastest Boxsters in SoCal are running 245/275 tires.

Originally Posted by Johnny Danger

+1 on that !

He did not say 300RWHP, he said 300BHP, which is certainly attainable with a 3.2 motor, if not economical. Putting a 3.6 in a Boxster has to be at least a $10,000 undertaking unless your labor is free.

If things like emissions, efficiency and streetablity are of no concern, 300BHP should not be a huge undertaking for a 3.2, nor insanely expensive.

[Johnny Danger]

Originally Posted by shadrach74

He did not say 300RWHP, he said 300BHP, which is certainly attainable with a 3.2 motor, if not economical. Putting a 3.6 in a Boxster has to be at least a $10,000 undertaking unless your labor is free.

If things like emissions, efficiency and streetablity are of no concern, 300BHP should not be a huge undertaking for a 3.2, nor insanely expensive.

Regardless if it's WHP or BHP, that's way too much unsprung rotational mass to effectively improve performance on any level.

[Kroggers]

Originally Posted by Johnny Danger

Regardless if it's WHP or BHP, that's way too much unsprung rotational mass to effectively improve performance on any level.

OK, so I need to go smaller - how about 265/35 on front and 295/30 in rear?

[Johnny Danger]

Originally Posted by Kroggers

OK, so I need to go smaller - how about 265/35 on front and 295/30 in rear?

I don't have much experience when it comes to race/track applications. However, based on the size(s) of the wheels alone, one would have to think that you're adding a tremendous amount of unnecessary weight. Especially, considering the fact that it's unsprung rotational mass.