romandian

i plan on running r888rs on deep concave f14 forgestars: 18x11x315/19x12x345. after having done a lot of searches and having received a recommendation from forgestar (35/50) i would tend to run the stock offsets (40/59). what do you think? if possible i would like the tires not to portrude beyond the fenders, because its illegal. 45 mm would be even better, however i have stoptech brakes (355/st-40) and im worried if the concave wheels will clear the calipers in front. running 2.5°/1.5° camber and there is 9 mm clearance with the stock wheel.

STANG KILLA SS

https://www.corvetteforum.com/forums...post1596859066

romandian

thanks. so you say 45-50 in front. i investigated this further and once you put up with the fact that you will only do one turn on the wheel, 50 is easy. however i wonder if the outer corner of the 315s doesnt rub on the front fender liner (at about 1/2 turn). my current 265x35s have a 7 mm (0.3") gap there, at least on the right side, so the 315x30 would be rubbing, im pretty sure, unless i go to something like 60.

STANG KILLA SS

yeah my 315s will rub on brake duct at full lock. but its no biggy your going so slow, and you just learn not to use full lock in parking lots etc. beats the hell out of sticking ouf of the wheel well.
60 will make the tire rub worse on brake duct. ie brings tire in further to center.

romandian

not on brake duct but the outside of tire on front fender liner, especially on full rebound.

romandian

well, my left side is touching already with the 265/35/18 cup2s at the end of their life, like this:



so even the stock 275/35/18s would rub considerably and how will the 315/30/18 fit? (i have 5 mm more clearance on right side, but the adjusters are maxed out.) whats going on here? is my 07 c6z different than all others? i can get a few mm on the left by readjusting the a-arms and a couple by taking a heat gun to the liner, but thats far away from the 15 mm needed even with 50 mm offset.

what to do?

STANG KILLA SS

is that car jack off the ground?

if you look at that top screw, then look directly right, that black streak on your liner, mine have rub marks there. but i cant answer if they are from my 18x11 track wheels, or 19x10 street wheels.
its no biggy, that much steering input is always at slow speeds.

romandian

its at full rebound and half a turn of the wheel. at ride height there is 5mm clearance. i would need at least 15mm for the 315.

romandian

stang, what is the clearance of the stock brake caliper with your front wheel (f14, 18x11, 45 offsett, deep concave, i understand)? thanks.

STANG KILLA SS

im running CF5s but the clearance at the tightest spot is 3/4"
i can stick my entire hand between the caliper and spokes