They'll fit in front, but not in back. They really slow the car down though. Gearing is much taller, you can really tell the tires are bigger.

Traction is fine with 205's especially if you go with 7-8 inch wide wheels. The wider the better.

The 215/45/16 Azenis also fits, but is still taller than stock and only .1 in wider than the 205/50/15 Azenis, hardly worth the gearing penalty.

 

What offset 15x7 TE37 would fit over Spoon calipers? I'm guessing +45?

 

I *think* 42 or 43mm is about the correct offset, but I could be wrong. It might even be 38mm. Stock is 50mm btw.

 

I have recently installed 15x7 wheels with 45 mm offset for the track. The wheels are made by Team Dynamics in England and distributed in US by TeamdynamicsUSA. They weigh 13.2 lbs (I checked them).
For tires, I use 225/50/15 Michelin Pilot Sport Cup R compound front and rear. I removed the plastic trim in the rear fender and the fender liner in the front fender. I rolled up the fender lips using a baseball bat. My car is lowered almost 2" front and back using threaded body coil-overs. I took it to the track for the first time with these tires and I had no rubbing in the back, but when braking and cornering simultaneously, I had rubbing in the front, which I need to resolve. There was no rubbing when cornering without braking or when braking in a straight line. The tires do not rub on the inner suspension parts with 45 mm offset. It might be possible to use 50 mm offset wheels, but I am not certain. (50 mm offset moves the tires closer to the middle of the car than 45 mm offset wheels).

I chose 225 width section tires because that is what Realtime Racing has used on their cars since 1997. They have used 225/50/15, 225/50/16 and now use the mandated size of 225/45/17 in Toyo T1-S. I have looked at their cars and the tires certainly fill the wheel wells. How they avoid rub I am not sure. I do know that this year they are running 900 lb front springs and that last year they won the championship with 800 lb front springs. I also checked 2 ITR's in a local race series and they were both using 225/50/15 Toyo RA-1's (the series tire) I had 450 lb front springs and rubbing. The front camber was at -1.2 degress since I had not had time to adjust it to -2 to -3 degrees which is optimum for these tires. I am not sure this will affect the rubbing I am getting. I can of course raise the car, but lower is better!I want to make the 225's work since others have done it. I am not racing, just tracking my car, but wider is better so why not!

 

What calipers you have? I checked out those wheels on their website, looks like they come in quite a few offsets. How much did they cost/wheel?

 

 

I have stock calipers. There is a lot of clearance between the new wheels and the calipers, more than there is with the stock wheels. The wheels cost me $125 ea., but I had to wait a long time for them (they came from England and they had to wait to fill a container or part thereof) because I think I was the first person to order them for an ITR and they had none in stock. Distributor told me he was now going to keep some in stock. Tires cost $204 ea. I think from Tirerack, and they have fantastic grip. The tires weigh 20.4 lbs ea., making each wheel and tire combo weigh a total of 33.6 lbs, whereas the stock ITR wheel with an RE-010 195/55/15 weighs 35.0 lbs. So my set-up is wider and lighter.

A note with regards to the rub in the front: the Ground Control guys shipped me 7" springs and this lowered the car 2" with the spring perches turned all the way up. I suspect they sold me springs which are too short, and that 8 or 9" springs would have been more appropriate, since they would allow me to raise the car.

 

I'll probably order a set of those as well. I'll try running 225/45/50 Hankook Z211 R compounds. Cheap and supposedly decent. What colour did you get and do you have pics?

Thanks.

 

I bought black Team Dynamics rims with white lettering. I exagerated a little about the lowering of the car. It is lowered 1.5" all around and not 2". I too was going to buy Kosei rims but I thought these because they looked a lot nicer, and they had a lot more choice in offsets. There was one small negative, and that is the plastic hub-centric rings that came with them stuck to the front hubs due to brake heat from the track. I had to pry them off the hubs with a screwdriver.

I will re-install wheels as I came home from the track on my stock wheels and take a few pictures and check the actual clearance between stock caliper and my track wheels.

By the way, with regards R compounds, the latest issue of GRM magazine has a new tire test worth checking out.

How does one post pics for this site? If someone lets me know, I will post a couple.

 

Yeah, plastic rings are not good for use on track cars. If you don't mind please let me know how much more clearance these rims clear your calipers than the stock rims. I can host the pictures if you want, just email me.