Wheel fitment
04-16-2017, 07:25 PM
#21
TECH Addict
iTrader: (19)
Join Date: Aug 2007
Location: Where the Navy tells me to go
Posts: 2,397
Received 106 Likes
on
88 Posts
A little STS knuckle mock-up in the basement with one of my old, dead hubs and a spare V1 rotor (that I'm not even sure why I have 
):
It's not the same tire as used for the CTS-V knuckle pics I posted earlier, but I don't think there's an appreciable difference in section width so the measurements should be roughly the same. There's more clearance even for 18" wheels, but you can see that based on the shape of the knuckle the difference (stock knuckle vs STS) is more pronounced as you move farther up, so 19s or 20s would see a bigger gain in clearance.
):It's not the same tire as used for the CTS-V knuckle pics I posted earlier, but I don't think there's an appreciable difference in section width so the measurements should be roughly the same. There's more clearance even for 18" wheels, but you can see that based on the shape of the knuckle the difference (stock knuckle vs STS) is more pronounced as you move farther up, so 19s or 20s would see a bigger gain in clearance.
04-17-2017, 01:15 AM
#22
Those measurements look accurate. You have a little more clearance than expected due to that dust shield. When I installed a 19x10 +42mm Forgestar F14 on the front, I measured a construction paper-thin amount of clearance. With a 5mm spacer, you could run a square 19x10" 6-lug F14 setup, but the front fenders were in danger of being destroyed by bumps while turning.
By the way, what kind of wheels are those? They don't look stock (based on the lip) and they don't look like the Team Dynamics wheels based on what I can see of the spokes.
By the way, what kind of wheels are those? They don't look stock (based on the lip) and they don't look like the Team Dynamics wheels based on what I can see of the spokes.
Last edited by FuzzyLog1c; 04-17-2017 at 01:47 AM.
04-17-2017, 12:19 PM
#25
One step beyond the STS spindles is the C6 spindles. They reduce weight by another pound and will provide more clearance with the right upright adapters. Plus you can install spindle ducts and BBKs meant for the Z06 and ZR1.
04-17-2017, 12:26 PM
#26
TECH Apprentice
Join Date: Jun 2016
Location: GA
Posts: 350
Likes: 0
Received 0 Likes
on
0 Posts
04-17-2017, 01:55 PM
#27
I've considered tubular but need to figure out whether the weight penalty is offset by the fatigue strength. I'm an electrical engineer, so all the material considerations have to be learned. The thing that freaks me out about aluminum is the lack of a fatigue limit. It's fine if you have the time and funding to destructively test the design in various ways but that's a thing I don't have. I also don't have the decades of accumulated experience and lessons learned, so the design will have to be extremely conservative to ensure safety.
