Stock SS/SC 18x7" wheel offset is 42mm. I am going to 17x8" wheels. What offset am I going to need?

I used an offset calculator and at 42mm with the 8" ther is a .5" increase on each side.

With a 40mm offset, the wheel got pushed out toward the fender further, and with a 38 mm offset even more. Sort of confused because these wheels will be a special one time cut, and I want to get it straight! HELP ME please!!!

 

38mm will be fine. our cars will fit probably close to 30mm offset with no problem.

i took some measurements the other day with a yard stick across the face of the wheel and up into the fender, then measured from the yard stick to the fender.

i don't like our stock wheels because they're tucked in too much. i like it when the wheels are almost flush with the fenders.

 

Thanks GSoccer24. That waht I was thinking as well.

Are there any more inputs from people on here? I just want to be extra cautious.

 

if it helps, the wheels i'm getting from my sponsor are going to be 35mm offset.

 

What size width, and what brand?

 

18" by 8", +35mm, Ace Alloy Wheel

 

The lowest I would probably go on mine is 38 mm . Thats gonna stick the wheels out .670" more , and losing 9 mm on the inside . The fronts I wouldnt be worried about , but I think thats cutting it close on the rear as the rear wheels seems to sit further out than the fronts . 42mm will stick them out about an even 1/2 " . I will bring a yard stick and my digi calipers to the dragstrip tomorrow and see where exactly that comes out . Im still just visualizing at this point .

I want these wheels right too

Thanks for the input GSoccer24 .

The one possible issue I did see with a 35-38 mm offset on the fronts is a bracket mounted to the shock for a diagonal link . More with us going down a inch to a 17 . I didnt have my calipers handy to measure exactly , but it looks like about 20mm clearence between the stock wheel lip and this bracket . Of course though , it looks like if needed , it could be ground down a bit without effecting anything . Just a thought . I will try to get an exact measuremnt on that tomorrow too .

 

sweet deal, good info man

 

I appreciate it. We are all being so patient on these wheels.

 

so has anyone tried +38 offset wheels? I was thinking about getting 18's in that offset with a 225 tire and was wondering if it would rub?