[M-System]

Anyone here with a G29 Z4 on Supra GR wheels?
Please post pictures.

[misterturbo]

Here you go. Two tones on my 30i w/ Bridgestone RE71RS, also with stud conversion.

They look OK, better in person, but they're not winning any awards.

[tracer bullet]

Originally Posted by misterturbo

Here you go. Two tones on my 30i w/ Bridgestone RE71RS, also with stud conversion.

Thanks for the pictures!

Seems like the offsets are the same or at least close enough. I realize that the cars are so similar that the bolt pattern and hub diameter are the same, but I wasn't sure if the Supra's changes (at least for the outside of the car, since the suspensions is probably the same physical size and shape) would have messed things up at all.

[Westside Guy]

Are there some 3rd party makers that designed some wheels for the Supra that you could look at?

[misterturbo]

The wheel specs for the 19" are exactly the same between the BMW and the Toyota. Offset, width, centerbore, etc. They are direct bolt on.

I do not know about the 18s (or even if Yota offers them).

[BEAR-AvHistory-2]

Like the look, be nice to see them against black

[tracer bullet]

Originally Posted by Westside Guy

Are there some 3rd party makers that designed some wheels for the Supra that you could look at?

Apex makes a variety of wheels, many in 18" and some 19's as well. Intended for the Supra but fitting the Z4. They have a good write-up on their site I've been studying:

https://apexwheels.com/fitment-guide...xoCnLAQAvD_BwE

[Argo]

Originally Posted by misterturbo

The wheel specs for the 19" are exactly the same between the BMW and the Toyota. Offset, width, centerbore, etc. They are direct bolt on.

I do not know about the 18s (or even if Yota offers them).

Given the different Z4 sizes are direct bolt-on between themselves, why wouldn't they work?

Originally Posted by misterturbo

Here you go. Two tones on my 30i w/ Bridgestone RE71RS, also with stud conversion.

They look OK, better in person, but they're not winning any awards.

They definitely suit the more swoopy outer design of the Supra better than the Z4. Maybe on a 30i with Chrome accents they'd look more consistent.

[misterturbo]

Originally Posted by Argo

Given the different Z4 sizes are direct bolt-on between themselves, why wouldn't they work?



They definitely suit the more swoopy outer design of the Supra better than the Z4. Maybe on a 30i with Chrome accents they'd look more consistent.

I just looked on Toyota's website, and they do offer a 18" on the 2.0.. so yep they would port over on the Z4. Should be the same widths as the 30i Z4 without an optional 19" wheel package. Stock tire size on the 18s is pretty narrow to match the narrow wheel width.

18" sizes are pretty well documented over on the MKV forums, but mostly for square and wide tire setups. Apex Wheels also has some great information on those sizes and the clearance issues. Square and wide isn't an easy setup on these cars.

Given how cheaply you can get a set of 19" MKV take-offs ($500-800 USD), I wouldn't consider the 18s. The 19s are also forged whereas the 18s are cast.

[misterturbo]

Also, the new for 2024 3.0 wheels on the MKV would look FANTASTIC on the z4. They look really good!

I don't think we'll see them in the resale market for a while though.

[vertigo corsa]

Originally Posted by misterturbo

Also, the new for 2024 3.0 wheels on the MKV would look FANTASTIC on the z4. They look really good!

I don't think we'll see them in the resale market for a while though.

https://toyota.oempartsonline.com/oe...isc-42611waa11

https://toyota.oempartsonline.com/oe...isc-42611waa12

https://www.ebay.com/itm/14564699846...mis&media=COPY

https://www.ebay.com/itm/12632038564...mis&media=COPY

[ebirotedu]

Until this thread I never realized that some Supra OEM wheels are forged. Saw an estimate of 25lbs/wheel (front or back?). If true then a full set is nearly 20lbs lighter than the OEM 19”s on the Z4. (Weights courtesy of StanDiego

Wonder to what extent the reduced rotational mass of the Supra’s wheels explains how the lower HP Supra posts similar 0-60 time and 1/4 ETs to the higher HP but heavier Z4 - something that reviewers always noted in the inevitable comparisons.

Someone needs to get a set of forged Supra wheels for their Z4 and do some Dragy testing. .

[vertigo corsa]

42611-WAA11 (front 9x19): 21lbs
42611-WAA12 (rear 10x19): 22lbs

[ebirotedu]

Thanks!

That's pretty close to aftermarket forged 19" Z4/Supra wheels. So closer to a ~40 lbs reduction in weight over a set of OEM Z4 wheels.

Originally Posted by vertigo corsa

42611-WAA11 (front 9x19): 21lbs
42611-WAA12 (rear 10x19): 22lbs

[Living Dead]

I could stand to lose 60lbs plus adding these wheels might be worth a couple of 10ths 0-60

[vertigo corsa]

"Simplify, then add lightness".

- C. Chapman

[Argo]

Originally Posted by misterturbo

Should be the same widths as the 30i Z4 without an optional 19" wheel package. Stock tire size on the 18s is pretty narrow to match the narrow wheel width.

The Supra's 18" and 19" wheels have the same width dimensions, much like the ones in the Z4 M40i. All of the available options, in both 18" and 19" sizes, are 10" wide at the rear and 9" wide at the front, and come equipped with 275 and 255 tires, respectively.

That said, the Z4 sDrive30i comes with narrower wheels and tires 9" wheels with 255 tires in the rear and 8" wheels with 225 tires in the front as standard. However, opting for the wider 18" wheels standard on the M40i is a no-cost option for the s30i.

Originally Posted by misterturbo

The 19s are also forged whereas the 18s are cast.

Interesting that the Supra offers forged wheels. As I understand it, none of the Z4 wheel options are forged.

[eclz]

My 30i tires are 255 front, 275 rear. There are 62 fun pages of aftermarket Supra wheel photos here:
https://www.supramkv.com/threads/pic...t-wheels.2022/

[deemo319]

If I get an M40i with a manual transmission I will order these wheels before I order the car but not in satin bronze. The wheels are Wheelforce CF.3-FF R.

[M-System]

Originally Posted by misterturbo

Here you go. Two tones on my 30i w/ Bridgestone RE71RS, also with stud conversion.

They look OK, better in person, but they're not winning any awards.

I think it looks really good. Especially on white.

[M-System]

Originally Posted by misterturbo

Also, the new for 2024 3.0 wheels on the MKV would look FANTASTIC on the z4. They look really good!

I don't think we'll see them in the resale market for a while though.

Both types are forged, but the newer version is considerably lighter. Will be selling one of these sets soon.