Chibo

This isn't the right thread for pics, but they fit much better than the 17x9 +45 RPF1s I had on the car in terms of fender clearance... I'd be curious if you might be able to fit them under an untouched fender STR style.

They do rub the inside of the frame a few degrees off full lock, but I see no issues for someone that is going to be tracking the car anyway. I also see no LCA rub, but I didn't try full extension and I have Penskes that are fairly short, 850lb springs up front, offset UCA inner bushings for camber, and run the car pretty low. I am happy with them.

We will see how they work on the 12th as I am going back to a what I'd classify as my home track (if you understand what I mean by that) that I was just at two weeks ago. Only difference will be 17x9 +45 RPF1s with NT01s that have about a day left versus the 17x10 +55 SA72R with sticker NT01s.

As a side note, I could be crazy, but I it looks like the NT01 wants less camber than a 200TW tire. I have not compared notes with anyone to see if I am, in fact, crazy.

Chibo

As an update, in my case, the wheel very lightly rubs the rear side of the upper control arm on the left side of the car only when at full left turn lock. It rubs so little that I ended up smoothing the casting leftovers out of the control arm where it rubbed and it no longer happens. I have offset UCA bushings and -3.75* camber, I don't expect this to be a problem for anyone else.
The tires do not rub anywhere, I was mistaken until I pulled the wheels off the car and was confused when I saw no evidence of tire rubbing.

roel03

Can you guys post alignment and pics of your fender clearance/ride height with your SA72R. Debating between the 9.5 and the 10. @Chibo @Bullwings

Chibo

I am -3.75 / -3.25* camber and 12.75" / 12.5" hub center to fender. Camber is done through eccentric UCA bushings up front, which definitely helps.

Front clears by miles and I am guessing it would clear untouched stock fenders. Rear will definitely require a roll. I just have a roll front / rear. I'll take some pictures tomorrow.

Bullwings

Potato camera pictures. It clears by a lot.
My fenders are previously rolled from running 17x9 +48 and 17x10 +52 wheels.

Camber -3.0F/R
Ride Height (center hub to fender) - 13.0"F / 13.25"R




don't mind the junk on my shelves.

roel03

Well looks like it will fit right up for mine. Our alignment and ride heights look identical. I'm on 9+49 TC105N right now with rolled front and rear.

Thanks, guys!

DavidNJ

Did you try to use bump stops to limit that? They would increase the spring rate at the end of travel.

The Bump Stops Here - Tech Talk - Modified Magazine

Some oval track cars use bump springs instead of rubber bump stops. The design uses soft primary springs and pull-down shocks to run the nose maybe 3/4" off the ground while still passing a 3.5" or 4" ride height rule.

Off-roaders can run hydraulic bumps stops to avoid bottoming. Not applicable here, but useful for context.