[IBOOSTU]

will these fit ?
3 piece brushed
5x112 20x10 et40 66 hub bore

[pbonsalb]

With giant spacers…. Buy wheels that fit.

[IBOOSTU]

Originally Posted by pbonsalb

With giant spacers…. Buy wheels that fit.

What specs fit the car sorry for noob questions lol

[pbonsalb]

Stock 20” wheels are ET28. You would need 12mm spacers just to get to stock offset. Many owners with stock wheels use 10-12mm front spacers and 15mm rear spacers for a more flush look. So with the wheels you are looking at you might want 20-25mm spacers. I personally would not choose to run that big of a spacer though I have run ones in that size on one car to clear bigger brakes when running my winter wheels.

[PDOT]

What would be the ET for a 20x10 wheel that replicates a 12mm spacer?

[pbonsalb]

Is this a front or rear wheel that is 20x10?

[PDOT]

front

[DryBark]

Originally Posted by PDOT

front

ET22 I believe. https://www.1010tires.com/Tools/Whee...et-Calculator#

Inner clearance would be the same, and outer clearance should be +12mm further than stock.

[pbonsalb]

Originally Posted by PDOT

front

20x10 front is 1/2” or 13mm wider than stock, half of which will be towards the fender, taking up some of the gap, meaning less than stock offset will look good. For example, with my Titan7 TS5 20x10 ET22, I do not use a spacer to push the wheel towards the fender — because the wheel is wider by about 6-7mm and offset is 6mm less than stock. With stock 20x9.5 ET28, I used an 12mm spacer that effectively reduced offset to ET16. Result is about the same visually.

[PDOT]

Thanks. I plan on ordering some Forgeline wheels this winter for the next track season and want to get a square set up.

[PDOT]

Originally Posted by pbonsalb

20x10 front is 1/2” or 13mm wider than stock, half of which will be towards the fender, taking up some of the gap, meaning less than stock offset will look good. For example, with my Titan7 TS5 20x10 ET22, I do not use a spacer to push the wheel towards the fender — because the wheel is wider by about 6-7mm and offset is 6mm less than stock. With stock 20x9.5 ET28, I used an 12mm spacer that effectively reduced offset to ET16. Result is about the same visually.

What size tires you run with this setup? Lowered?

[pbonsalb]

I recycled my stock size PS4 but will change to either 285/295 or 295/305 next year. From everything I have learned, 285/295 don’t rub even if lowered (I run H&R M5 springs). For 295/305 the reports are mixed about rubbing, with the fronts rubbing near full lock and a fair number saying the rears run at times. Need to look more into that.

[916_M5]

Originally Posted by pbonsalb

I recycled my stock size PS4 but will change to either 285/295 or 295/305 next year. From everything I have learned, 285/295 don’t rub even if lowered (I run H&R M5 springs). For 295/305 the reports are mixed about rubbing, with the fronts rubbing near full lock and a fair number saying the rears run at times. Need to look more into that.

We can run 285 F and 305 R with no rub and lowered on HAS or m550 springs! Confirmed from several owners here

[pbonsalb]

I am not sure 285/305 is a good idea due to the increased count to rear differential that could negatively affect the AWD transfer case and traction control/ABS. If I could be dissuaded from those concerns, 285/305 would probably be my first choice.

[916_M5]

Originally Posted by pbonsalb

I am not sure 285/305 is a good idea due to the increased count to rear differential that could negatively affect the AWD transfer case and traction control/ABS. If I could be dissuaded from those concerns, 285/305 would probably be my first choice.

Your concerns are valid but from my real life experience and research from 3 other F90 owners running 285/305, no issues to or for the drivetrain