What size spacers do I need?
#22
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
225 45% 18 25.97 Stock Reference Size
245 45% 18 26.68 Stock Reference Size
255 30% 20 26.02 F
275 30% 20 26.50 R Alternate 1
285 30% 20 26.73 R Alternate 2
However 20s (both tire and wheel) are - as pointed out - typically going to be heavier. Suppose one could get into a formulaic discussion on how much an X% increase in unsprung weight negatively affects acceleration, handling, steering response etc.... but its far too early in the morning for me so if anyone is sitting their 7am AlgeCalc class and wants to solve a word problem, have at it.
Suffice that it is just "not as good" for the above purposes. But if you're not tracking or wanting to put too much to the ground, go for it if you like the look.
EDIT: Forgot to mention... I know nothing of the quality of those wheels but.... a lot of Mercedes guys (not me, thanks) seem to like them in 20, 21, even 22 for that baller look.
And that's enough reason for *me* to NOT run them.
Last edited by MicVelo; 12-13-2016 at 07:14 AM.
#23
On my Z with stock suspension I have
Front: 18x9.5+35 offset with 275/35/18 Nitto Invos
Rear: 18x10.5+22 offset with 295/35/18 Nitto Invos
Inner edges of the front tires were rubbing against the steering knuckle arms. I have tried 3mm, 15mm and 5mm spacers. 3mm wasn't enough to stop the rubbing issue. 15mm was the thinnest spacer I could find with builtin studs. But, it made tires stick out past the fender. Finally, tires cleared the knuckle arm with 5mm spacer. Also, 5mm seemed to be thickest spacer I could use without putting in new longer studs.
Outside edges of the rear tires were rubbing against the fender lip when cornering or going over large pot holes. I had to roll the fender lips to stop the rubbing.
Front: 18x9.5+35 offset with 275/35/18 Nitto Invos
Rear: 18x10.5+22 offset with 295/35/18 Nitto Invos
Inner edges of the front tires were rubbing against the steering knuckle arms. I have tried 3mm, 15mm and 5mm spacers. 3mm wasn't enough to stop the rubbing issue. 15mm was the thinnest spacer I could find with builtin studs. But, it made tires stick out past the fender. Finally, tires cleared the knuckle arm with 5mm spacer. Also, 5mm seemed to be thickest spacer I could use without putting in new longer studs.
Outside edges of the rear tires were rubbing against the fender lip when cornering or going over large pot holes. I had to roll the fender lips to stop the rubbing.
#24
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
On my Z with stock suspension I have
Front: 18x9.5+35 offset with 275/35/18 Nitto Invos
Rear: 18x10.5+22 offset with 295/35/18 Nitto Invos
Inner edges of the front tires were rubbing against the steering knuckle arms. I have tried 3mm, 15mm and 5mm spacers. 3mm wasn't enough to stop the rubbing issue. 15mm was the thinnest spacer I could find with builtin studs. But, it made tires stick out past the fender. Finally, tires cleared the knuckle arm with 5mm spacer. Also, 5mm seemed to be thickest spacer I could use without putting in new longer studs.
Outside edges of the rear tires were rubbing against the fender lip when cornering or going over large pot holes. I had to roll the fender lips to stop the rubbing.
Front: 18x9.5+35 offset with 275/35/18 Nitto Invos
Rear: 18x10.5+22 offset with 295/35/18 Nitto Invos
Inner edges of the front tires were rubbing against the steering knuckle arms. I have tried 3mm, 15mm and 5mm spacers. 3mm wasn't enough to stop the rubbing issue. 15mm was the thinnest spacer I could find with builtin studs. But, it made tires stick out past the fender. Finally, tires cleared the knuckle arm with 5mm spacer. Also, 5mm seemed to be thickest spacer I could use without putting in new longer studs.
Outside edges of the rear tires were rubbing against the fender lip when cornering or going over large pot holes. I had to roll the fender lips to stop the rubbing.