I have 19x8 +30offset in the front of my Z. Needless to say, they tuck inside the fender BAD. I was thinking about going with 20mm spacers to get it close to being flush with the outside of the fender. What do you guys think? 20mm the best?

 

you could def get away with 25 mm spacers which would put you at the equivilant of a 9.5 +24 wheel...that should look a lot better

 

do you think I would have to roll my fenders since I'm dropped 1" in the front?

 

feel the edge of your front fender -- it's already rolled (compare to the rear).

 

Your front fenders are "technically" rolled from the factory. Your rear fenders do NOT come from the factory rolled. If any fender rolling needed to be done it would be your rears.


edit ^ dayn it you beat me too it.

 

so do both you guys think I should go 25mm as well?

 

Here's how to find out if 25mm is too much or too little.



How To Measure?

The widest point of your tire and wheel combination is usually the outside diameter of the tire sidewall. Using a ruler with the straight edge flush with the face of the tire, measure the gap between the outer face of the tire to the inside lip of the fender as shown in the diagram. This will determine the thickness of the spacer you will need.

5MM = 0.197 INCH
8MM = 0.313 INCH
10MM = 0.393 INCH
12MM = 0.473 INCH
15MM = 0.590 INCH
20MM = 0.787 INCH
25MM = 0.983 INCH

http://www.ichibausa.com/whspad.html

 

looks like 20mm should work...so this will be like 19x8 (+10 offset)

 

you can also use this calculator and find set ups you know dont rub up front:

http://www.1010tires.com/WheelOffsetCalculator.asp

for example im pretty sure 9.5 +22 doesnt rub use that as a reference point

 

i think i'm just gonna run 15mm spacers in the front to be safe.