I'm thinking about putting 16 x 8's with a 245/50 tire in the front and 17 x 9's in the back with a 275/40 tire. The offset options for the rear are +8 and -11 I believe, will I have clearance issues on a stock 91 RS? and do you think the different size wheel combo would look goofy?

 

With that setup, the front tires will have a taller sidewall than the rears, personally I think that would make it look goofy. You might like the look better if you were to go with 17's on the front as well.

 

How do you drive and where?

I'm a fan of the same size tire front and back unless the car is dedicated to tracks in portion-of-a-mile increments personally. My Impala SS has the same size, my '78 Chrysler has the same size, and my TA has the same size. The ever-so-slight loss of straight-line acceleration is negligible compared to the handling, stopping, and maintenance (ie tire rotation) that one benefits from with all four wheels and tires the same.

Obviously if you disagree that's your prerogative. I just find these cars seemingly meant to run down the highway more than the drag strip.

As far as wheel choices, I've got Torq Thrust II wheels on that '78 Chrysler, in 15x7 with 255/60/15 tires. They're pretty good wheels, but not the most durable. I once saw an old flat-front Ford van with 'em, very low profile tires, and the van caught a piece of a semi-truck bumper that had come off and was laying on the road. The cut went through the tire and well into the rim, so they're clearly a little soft. Be mindful of road debris if you go with a particularly low-profile tire.

 

I have 17X12(275/40) in the rear with 4th gen axle and 17X10(245/40) in the front...not much in the way of fitment per your question....however goofy? you decide.... i dislike it

 

OK,I'm sure many of you are tired of me saying this but I'm going to say it again.
This is intended for the new guys here on this site . Please only stack your photos. Placing them side by side stretches the page like this.If the thread takes off with many replies its a nightmare to read.
Thank you.

 

b_the_j that set up looks sick, pretty similar to how mine turned out. I ended up doing 17's all the way around and I'm happy I did. No idea how you fit a 12" wide rim in there but I like how far it sticks out.