I tried looking around and couldn't find any answers. What offset would be used to fit flush with the ZG flares?

 

there is no answer to that. cause we dont know what size rims your using. your going to want to go with a wide rim setup so you can use a little - offset other wise its going to be dumb. your really going to have to try asking people with the ZG setup and i cant think of anyone on here that has it.

 

To measure how much room you have place a straight edge against the mounting face of your axle or front hub. From the center go out to the radius equal to 1/2 the diameter of size wheel you want to run. Measure in to the coil spring. This will give you the max wheel depth, allow for tire clearance. From that same edge measure out to the point on the fender edge you want. Make sure you have the car at ride height. With this info you can select the size you want. I think you can clear 10 wide on the rear and 8 on the front with the right offset. You might have to spend more on the wheeels but you won't have to buy spacers or adaptors, much better for high speed and suspension geometry.

 

in 16inch size I have heard of people using 16x9 on the front with around -11 and then 16x9.5 on the back around -16 that seems to work well

 

i have a -3 with 225 and i think i just want to roll my fenders.

 

the rears do seem to accomidate more meat than the front. ive seen a 10 inch wide tire squezzed under non flared fenders in the rear...

mainly they become use full when teh car is lowered.

 

in 17 for the front 17x8.5 +4
rear 17x9.5 -19
it will be great

 

Cataloney are you running coilovers with that setup?