F14 fitment

NISMOFO

I just realized I was off in my calculation above! I just adjusted the rear offset......please see above for my revised rear offset spec above. Sorry I wrote all of that on my cell phone.

There are tons of variables. The width, offset, ride height, camber, tire size, tire brand and style of wheel all completely change the look.

Another thought is that these are flat faced wheels with no lip. Generally the best look for a flat faced wheel is flush to the outsides and on a car with little gap. The nismo wheels are not flat faced.

If you were lowering the car, I have completely different opinions on these specs. But I'm listening to what you want, and I'm still trying to help based on your input.

I can link you to some 370Zs (stock height) with semi-aggressive specs and the smaller 255/35 & 305/30 sizes. What you'll find is 10 pages of people saying "lower that car"....lol. You'll hear that regardless, but even more so with smaller tires and the wheels pushed out to the fenders.

When most people with Nismo wheels lower their car they add 10 or 15mm spacers (and smaller/wider tires) because the camber/gap changes everything. The negative camber makes the biggest difference and really sucks the top of the wheels in front/rear (unless you run a front camber kit).

If you were to lower the car, then I would easily suggest another 10 or 15mm lower offset (plus Forgestar doesn't sell any truly aggressive offsets for us). But I have not heard that, so I won't suggest that at all. 5mm farther out than a stock 370Z Nismo would be the most I'd suggest stock height.

I don't think this is a bad look at all with what you're wanting. I "think" there is plenty clearance on the backside for this to clear the rear shocks as well for another 13mm. I would suggest an alignment for sure.

speedworks

If you have the sports package brakes, I think with the 9.5, the least aggressive Forgestar will go is 30 (so it fits the brakes). I actually wanted 34, but had to go with the more aggressive 30 so they fit. Might want to confirm with Forgestar, but check with them.

NISMOFO

Excellent point. I just checked my front 19x9" +24 Forgestars to my Sport brakes and at the lowest point, there is about 16mm of gap between the back of the spoke and the caliper. At 16mm, the spokes would be "on" the caliper...literally. All you really need is maybe 2mm of clearance.

I'm not 100% sure, but fairly certain a 19x9 and 19x9.5 Forgestar have the same spokes as far as concave goes. I think they just add or remove from the backside of the wheel (hub) which is why lower offset wheels can easily be heavier.

Here are some specs comparing my fronts to the ones I suggested to rarwz. Looks like the +40 on a 9.5" push the outside of the wheel 9.5mm farther in. So if the spokes are exactly the same between 9" & 9.5", I think that would leave about 6.5mm (or maybe 1 or 2mm less) of gap between the spokes and the calipers.

19x9" +24
backspacing 5.42"
frontspacing 3.58"

19x9.5" +40
backspacing 6.29"
frontspacing 3.21"

Variance (Inches)
backspacing 0.87" <<< Outside edge of wheel comes in (+)
frontspacing -0.37" <<< Outside edge of wheel comes out (-)

Variance (Millimeters)
backspacing 22.50mm <<< Outside edge of wheel comes in (+)
frontspacing -9.50mm <<< Outside edge of wheel comes out (-)