i am contemplating swapping my car for a 300zx and i was wondering... will my racing hart cpf tune fit on a 300zx? its 19x9 upfront and 19x10.5 in the rear... and i have no idea what the offsets are... if anyone happens to know would be great to know ^^ thx.

 

find someone with a 300z and test fit them. if you dont know the offsets thats really the only way we can help ya out bro

 

yah... the problem is... i never asked offsets since RH only made these rims in 1 offset for the 350z lol.

 

I'm fairly sure the 300z has the same wheel fitment as the 350z. My brother (who knows a lot more about cars then me) said the wheels on his 300z, which happen to be racingharts, will work on my 350z. His are 19x8.5/10, not sure about offset.

 

My brother test fit my stock 18s on his 300z and they were very flush. The fronts actually hit the wheel well when turning. I think anything larger or with a lower offset wouldn't have fit without adjustments. Hope that helps.

 

Sorry but that gives me nothing to work with. Its a guess at best.

 

Calculating the offset of a wheel is a fairly easy mathematical equation. First, measure the overall width of the wheel (remember, just because a wheel is 18x7.5, does not mean that the OVERALL width is 7.5”. It means that the measurement between the outboard flange and the inboard flange is 7.5”). Next, divide that width of the wheel by two; this will give you the centerline of the wheel.


Overall width/2 = Centerline


After determining the centerline, measure from the hub-mounting surface of the hub to the edge of the inboard flange (if the wheel were laying flat on the ground – face up – your measurement would be from the ground to the hub-mounting surface). This is your back spacing.


Back spacing - Centerline = Offset in Inches


Inches x 25.4 = Offset in mm