Okay forgive my ignorance but when it comes to rims and tires I can't for the life of me wrap my head around them. Give me a motor I can rebuild it. Slap a bunch of rim and tire combinations in front of me and I'm licking the windows on the short bus. As far as I know stock height 06 350 as far as my knowledge the fenders have not been rolled or pulled. I do not know the rim specs of the shitty knock off flea bay rims that are on it now all I know is they're 20s and if I had to hazard a guess I would say 9.5 wide front 10 wide rears. Tires on it now are 255 30 r20 in the rear and fronts are 235 30 r20.

I found a nice set of work 3 pieces but they run a -4 and -6 offset the new rims and tires would be
Front - 225/40 18 on 18 x 10.5 -6
Rears - 255/35 18 on 18 x 12 -6

Could these work? If not what would be required to make them work. Again my apologies for my ignorance.

 

might want to check these threads out....

https://my350z.com/forum/wheels-and-...t-novices.html

https://my350z.com/forum/wheels-and-...s-welcome.html

the most common setups are 18x10.5 +15 (or low 20s) rear with a 275/40/18 tire, 18x9.5 +15 (or low 20s) front with a 255/40/18

or 18x9.5 on all corners with the same tires

 

A close to stock size rr tire on a WHEEL 4" wider than stock? Ever seen a tire get sucked off the bead and wrap around the axle after a curve? I have. Then it's not just changing out a tire...

 

get rid of the bicycle tires up front, track the civic sized rear tires, bring the wheels in to rebarrel to a proper offset.