IIRC their car was in the low 2900 range 5-6 years ago. I'd imagine he'd have figured out how to pull some weight out since then. Sub 2800 should be doable in SM with some ingenuity and money (my plan gets me to ~2820), so I'd think 100 or so lbs heavier in SP isn't out of the realm of possibility.

There wasn't any rubbing that I can recall with the +15. I think it had 10mm spacers up front, but that was just to widen the track width a little, not necessary for fitment. Don't mind the SM classing, it was a BSP legal car that I was just running in SM for points while mine was down.

can the X take the IX in ASP?

I would venture to say no. Though I think a Subaru could stand a better chance.

A Subaru did win in 2015. The secret to getting them to turn seems to be the OSG front diff

So no rubbing with even a 10mm spacer upfront? How low was the car? Do you have any pics and alignment specs? Roughly?

Ride height can be seen in this pic



I think the alignment was somewhere in the -4f/-2r range w/ 0 toe.

2950 depending on fuel load. I refuse to spend money to take weight off of the rear end.

I've seen one ASP evo that was 2880 but that was with a 1lb lithium battery, single plate clutch and running on fumes. Takes too much effort to maintain a car like that though and takes the fun out of it.

May I ask how many lbs the a/c and manual window worth? I supposed swapping out the auto windows is legal by itself...

I coulda sworn I've read that having different offsets front to back on the X screws with the AWD system. Myth?

Doesn't matter, as long as you have the same rolling diameter you're fine.

I seem to recall the windows not being worth the effort because once you add the weight of the cranking mechanism, the difference is negligible. Someone else might have some hard data though.

Another place we agree on . Not hard to lose another 50lbs in the back but I cant see a real noticeable benefit over finding more up front.

Plus, when you come to SM you'll just add it back in in Ballast . I figure its hard to beat diff bracket weight for location.

There is a weight reduction thread hiding over in the electrical/audio/security (???) forum that has a lot of info, even if most of it doesn't apply to ASP it's a good read. The big hitters for us were the seats (NRG carbon...super cheap and light), cat back exhaust (greddy Ti, weighs like 8 lbs total compared to like 50 lbs stock), and the A/C (30 lbs).

Have any of you had good luck with the wave track front diff?? Also what are thought on rear diffs...Heard good things about TRE but which one works best for Autox? For EVO 9.

I had the Wavetrac front diff and just recently swapped it out for Mfactory set to 1way and 60% lockup (set with plate stack). Wavetrac is 1.5way so causes some binding with heavy engine braking and high steering angle. Which exactly when you are trying to lift and get the front to tuck in. I fought the lift turn-in for a few years before being enlightened to the likely cause.

Wavetrac is fine though, basically works like stock but much stronger. Great on track where steering angles and engine braking are much less.