I will be ordering the Nismo LM GT4 19x9.5 (front) 19x10.5 (rear).

There are so many choices in offsets that I am lost. To make my choices even more difficult I will be installing the AP Racing BBK on the front and rear also. 14.25" rotors (front) 13" rotors (rear).

19x9.5 - offsets (+12, +20, +25, +28, +30, +40)
19x10.5 - offsets (+15, +30, +38)

I also need to choose tires that will fit the best. I decided on the Bfgoodrich g-Force T/A KDW2 in 255/35YR-19 and 285/35YR-19. Do these tire sizes sound right for these rims?

Thanks

 

 

Tire sizes sound fine. I have no idea what offsets to get though. Might want to pm one of the vendors, like performance nissan and ask them about the right offsets that will fit that BBK you are getting.

 

lets put it this way. run the +15 on the back, you will need to roll fenders, run the +30, you wont need to roll fenders. people do 10.5 +22 on stock ride height and dont need to roll fenders.

front i would go with +25 to be safe with the 255 you are running.

 

10.5 +22 on the rear? I'd think that'd rub .. considering my 10.5's are +43 & clearn big brakes ..

 

ok, here's the deal - I've done a lot of research on the LM-GT4's because I was going to order them a while back (19's in the same sizes you want - I wanted to be the first with the big lip in the rear)

for the 9.5 front, you want to get the +28 - this is the correct pad for big brakes, whereas the +25 is actually made to be in the rear; for the 10.5 rear, you want to go with the +30 - it will give you a slightly concave face with about a 2in lip... will look similar to the picture shown (which is a 9.5 +12 for the GT-R)

on the tires - I think for the 9.5/10.5 setup, I don't think you could have made a better choice... that is exactly the setup I'm going with and what I would recommend to everyone out there running wider wheels... good luck with everything and I hope this helps! (oh, and be ready to wait 3 months for those wheels!)