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18x10 square possible for CT4VBW for track days?

JustAGuy

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May 12, 2025
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Please pardon if this has been asked before: Has anyone fitted a square setup of 18x10 wheels on a CT4VBW? I know that Apex sells an 18x9.5 setup with different offsets for the front/rear, but I haven't found any references to an 18x10.

Here's my use case...and why I want to run a square setup if possible: I run the One Lap of America event, and the rules allow you to carry 1 spare wheel/tire with you if you're running a square setup, and 2 spares if you're running a staggered setup.

As a driver, I like a square setup. I've been driving track events for 20+ years in a lot of different cars, and I've changed to square setups on several cars that came from the factory staggered. I've had very good luck, including my current Mk5 Supra. Logistically, I don't want to carry 2 wheels/tires, as I have to pack for a week+ in the car, and even in a sedan like the BW, space is a premium.

My desired setup would be stock suspension, 18x10 with 275/35/18 at all corners, aggressive alignment per the owners manual. I'm willing to trim/clearance the fender liners a little, etc. I know this is breeze for the rear, but can it be done in the front without significant modification?

Even if I'm limited to a 9.5" wide front wheel, how does the 275/35 fit?
 
I'm not sure if this answers your question but there are people running the 19x10/11 OE 5BW wheels on their 4BWs. So a 10" width up front should work. You can find some pictures and threads on this forum.
 
I'm not sure if this answers your question but there are people running the 19x10/11 OE 5BW wheels on their 4BWs. So a 10" width up front should work. You can find some pictures and threads on this forum.
That does help, and I'm sure there is info in those threads on spacers (if needed) and it should be easy to find the offset for the 5BW wheels.
 

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