Complications involved in bigger rims?

[KevinTJH]

I own the base GT model that has 16" stock rims. I was concerned about how harsh the ride would be if I had moved to 18" rims so I decided to go with 17" since it's the same as the GTS rims.

As for tyres, I ordered ZENNA ARGUS 215/45ZR17 91W as part of the wheel package.
I bought a set of XXR 530 17x7.5

My current stock tyres are YOKOHAMA 205/55/R16.

Would I need to re-calibrate my speedometer, suspension or anything, or could I just get them fitted and not have to worry about anything?


Also, if I wanted to maintain my car's current height, would it be a costly process to lower the car by an inch or so?


Thanks in advance!

[NLSP]

You don't need to do anything. The new 215/45/17 tire is actually about 0.3 inches smaller in diameter than the 205/55/16, so the car will actually sit slightly lower.

[KevinTJH]

Originally Posted by NLSP

You don't need to do anything. The new 215/45/17 tire is actually about 0.3 inches smaller in diameter than the 205/55/16, so the car will actually sit slightly lower.

Thanks!

What about calibration?

[NLSP]

Not worth the trouble since it'll read roughly 1 km/h slower.

[cslntuee]

Originally Posted by KevinTJH

I own the base GT model that has 16" stock rims. I was concerned about how harsh the ride would be if I had moved to 18" rims so I decided to go with 17" since it's the same as the GTS rims.

As for tyres, I ordered ZENNA ARGUS 215/45ZR17 91W as part of the wheel package.
I bought a set of XXR 530 17x7.5

My current stock tyres are YOKOHAMA 205/55/R16.

Would I need to re-calibrate my speedometer, suspension or anything, or could I just get them fitted and not have to worry about anything?


Also, if I wanted to maintain my car's current height, would it be a costly process to lower the car by an inch or so?


Thanks in advance!

HI,


Where you got the XXR 530 17x7.5?


I only saw 17x7 and 17x8.25 on their website.
http://www.xxrwheels.com/xxr_530.shtml


Thanks.

[KevinTJH]

Originally Posted by NLSP

Not worth the trouble since it'll read roughly 1 km/h slower.

Does that mean I'll be driving 1km faster? Driving at 61km/h while it reads 60km/h?
I'm just a little concerned about speed cameras.

Originally Posted by cslntuee

Where you got the XXR 530 17x7.5?

Oops I think that was a typo. But here's where I got them from.
www.ozzytyres.com.au

[NLSP]

Originally Posted by KevinTJH

Does that mean I'll be driving 1km faster? Driving at 61km/h while it reads 60km/h?
I'm just a little concerned about speed cameras.
www.ozzytyres.com.au

Other way around actually. Since it's slightly smaller and spinning faster, it'll read higher. So a read-out of 60 would mean you're actually going about 59.

[KevinTJH]

Originally Posted by NLSP

Other way around actually. Since it's slightly smaller and spinning faster, it'll read higher. So a read-out of 60 would mean you're actually going about 59.

If that's the case, I wouldn't bother with recalibration then. Thanks!


Okay, completely unrelated to what I was asking about earlier, what about if I went with 18" rims with tyres 225/40/18?
There's a set in 18" that I like a lot and would consider it if there aren't any complications involved. What are your opinions?

[KevinTJH]

Bump.

[NLSP]

Diameter is about the same as stock, so again, the difference is negligible. Expect a rougher ride though since sidewall height is reduced though. Here's a helpful tool:

http://www.1010tires.com/Tools/Tire-Size-Calculator