I did these for my Apex wheels. The shank fits perfect in the lug holes on the wheels. I run a 5mm spacer up front and these make that feel safe on thread engagement. Overall length from the seat isnt too much of a concern vs number of turns of thread engagement...
Just do 17X8+45 wheels and a 255 tire. Embrace the shift to 3rd. (I assume the big site you're talking about is GCAC). I use to tap the limiter in 3rd there on some courses with my old 19 SI LOL
Yeah, gearing blows on the 20+ and the 22+ is heavier and longer than the 10th gen.
I have 255/35/18’s on my car and 2nd ends about 54mph. Debating trying some 255/40/18’s next go since they’re a bit taller and hit 57 in 2nd. That is about what a 10th gen car does with 255/40/17
Do you have the alignment pics pulled on the top strut? 1.1* feels low if the ball joint adds 1*. You should be .5-.7 with the pins pulled so ~1.5* with the ball joint I would think.
For the MR, did you calculate this yourself or find a source for it? Never seen MR as being over 1, it should be under 1 AFAIK. Then wheel rate is Spring X MR^2. The math isn't mathing for me here. Even if the MR should be flipped, .971 F and .667 R, those don't add up to the wheel rates listed...
It would not be legal. You can pull the front pins and that will gain a couple tenths of a degree and that is it.
You will need to go to STH to get proper camber