1 and 2 is no. Wheels are just wheels.
3 as long as your get a tire size that matches in diameter, you won't have to worry about the speedometer or odometer being off. You can check what size tires are the closest to one another here: http://www.crzforum.com/forum/wheels-tires-discussion/14550-definitive-cr-z-tire-size-list.html

The only that would keep you from swapping wheels "freely" would be the Tire Pressure Monitoring System (TPMS) sensors. They have to be synced to the car every time you would switch between the 16s and the 18s, otherwise you would get a warning that pops up every time you started your car telling you to check you TPMS. As far as I know, it doesn't really do anything besides not being able to turn traction control off.

I would probably put the sensors in the 18s for your regular driving and just not have them in the 16s since they're snow tires and, although I'm from Florida and it doesn't snow here, I couldn't think of any reason why you would turn traction control off in the snow. Is there a reason why one would do this?

 

Thanks ArtJDM! Actually, that's the only time I turn off traction control -- if I'm stuck in a pile of snow! It's easier to get out without traction control. Is it possible to have two sets of TPMS sensors?

 

Ah ok. I had no idea. Yes, you can have two sets of sensors, but you would have to have them programed to the car every time you switched the sets out. You can either go to a shop to do it, or get yourself one of these:
ATEQ TPMS QuickSet

 

^^^ What he says.

I do exactly what you are planning. I use the stock wheels and tires during the winter. I swap to a set of RPF1s and Summer-only rubber during the warmer months. I use an ATEQ TPMS Quickset to "reprogram" the car to accept the TPMS for each set of wheels.

One additonal note: ATEQ only works on a PC, not a Mac. I have to use my wife's work computer when I run it.

 

Thanks guys. If I eventually decide to go with the larger HPD brakes, do you know if the 16" wheels will still fit? Or would the brakes be too big?

 

The HPD breaks will not fit under the stock 16" rims

 

Ok, thank you Eagle. That throws a wrench in my plans I guess I would have to stick with the stock brakes or go with an alternate brake kit if I want to be able to use both sets of wheels.

 

Your only alt kit that MIGHT work is the RSX kit, but I don't think that will even clear

http://www.crzforum.com/forum/handling-braking-suspension-discussion/25897-rsx-type-s-oem-bbk.html

Do you guys think the car will look dumb on these HPD wheels at the stock ride height?

No it won't, if anything it would look better since there will be less of a gap in the wheel well.

 

Do you guys think the car will look dumb on these HPD wheels at the stock ride height?

 

I don't think so. At least I hope not. As stated above I doubt the overall diameter will change as it's a Honda product so the fender gap will be the same. I'm looking into a set of these as well. I emailed a couple dealers for quotes and so far I got a pretty outrageous quote considering they can be had for $220 each online. When you go through with it, be picky about the price.

 

I don't know, the HPD kit uses a 300mm rotor. Rustbucket has Spoon calipers with a 300mm rotor from an RSX Type S on his car and he's had the OEM as well as other 16" wheels on his car. Probably has to use a spacer though.

 

Rotar size is not always the problem, the stock breaks are 10.3 inch on the front while the HPDs are 11.8. I don't know how much clearance the stock breaks have in the stock rims but since the Wilwoods are 12.8 and need a 17 I would imagine that the HPD are either an extremely close call or not fit at all.

What are you calling gap? To me it refers to tire to fender gap, which only changes if you put a tire with a different overall diameter on.

The gap between the tire and the fender yes. I have never ran anything but stock size rims which is why I said potentially as I was not sure if it would actually make a difference

 

Oh wow, so there is a chance the HPD brake kit could work with the 16" stock wheels? What is a spacer?

 

They're something you put over the wheel studs in order to push the centerline of your wheels away from the car.

This kind slips over the wheel studs and sometime requires you to have extended studs in order to run safely.

This kind bolts onto your existing wheel studs.

 

So the RSX-S big brake kit has the same size rotor as the the HPD brake kit? It sounds like it's going to fit normally then - no spacers? Hope the caliper size is not a problem.

 

The caliper is the big part of the brake system, since it straddles the rotor. 4pot aluminum calipers are definitely larger than the factory calipers.

 

You'll definitely need spacers for the HPD kit, assuming they fit in a 16" wheel. The RSX Type S upgrade uses your OEM calipers, so it doesn't need spacers for the OEM 16" wheel, but the HPD caliper should be much wider.

 

Thanks for explaining that Art and Bryan. What a pain in the ass it is trying to keep the stock wheels for winter. I definitely like the idea of upgraded calipers as opposed to sticking with the stock calipers. Unless you're the driver, that's the only part of the brake kit that's really noticeable! Not sure I'm fond of the spacers either :/

 

sly,

I'm not sure if you're still looking at these wheels but I'm planning on picking them up next weekend. I'll put some photos up so you can see them at stock height. Besides the Honda promo photos of the red HPD CRZ, it's really tough to find photos of these wheels on a car. Oddly enough I've found more photos of these wheels on Civics than CRZs.

 

Thanks rygar, ya the HPD wheels are still pretty rare. I know Kenju1 has them on his car. What color is your car?

If the group buy for the Mugen MFZ wheels doesn't succeed, the HPD wheels will probably be my fallback. Although I'm still not sure how I feel about them.

 

As promised, I picked up these wheels over the weekend. I'm really happy with the purchase. They look a lot better than I expected. Plus even though the diameter is pretty much the same, the wheel well looks more filled, maybe it's just me. But here are some pictures. My car is at stock height.

Makes you wanna fill the wheel with a bigger rotor and caliper, doesn't it? hyeah:

As you can see I got a set of Continental DWS. They're pretty good so far. I've read elsewhere that 16's don't have the XL sidewall while the 17+ do, which may explain the disappointment you experienced in your original post.

 

Nice, thanks rygar! The car is looking good! I was hoping your car was white, so I could see what they look like with my color lol. The only two cars I know about that have these wheels are black.

I heard that about the DWS tires as well. I hope the sidewall is better on yours because those tires took the life out of my car's steering.

Also, that's a nice looking house you got there!

 

Also, that's a nice looking house you got there!

Haha I wish... It's an apartment building. I've only been here a month, nice place though. I have a feeling these would look pretty good on a white CRZ but it can be hard to tell without pictures.