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Old 08-01-2019, 07:00 PM   #29
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Quote:
Originally Posted by Harpinc View Post
Those 11's for the rears?
No, 12s. All of the specs are in post 14
https://www.camaro6.com/forums/showp...4&postcount=14
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Old 08-09-2019, 10:23 AM   #30
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To anyone who has tracked with 345s/30-19 R7s on the rear, have you ever had a problem with the tire rubbing the quarter panel?

I test fitted the new wheels and tires today. The rear tires extend beyond the panel by about an inch. I don't know if there is enough suspension travel to create a problem, but I thought I'd reach out to anyone with experience.
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Old 08-09-2019, 01:18 PM   #31
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Quote:
Originally Posted by travislambert View Post
To anyone who has tracked with 345s/30-19 R7s on the rear, have you ever had a problem with the tire rubbing the quarter panel?

I test fitted the new wheels and tires today. The rear tires extend beyond the panel by about an inch. I don't know if there is enough suspension travel to create a problem, but I thought I'd reach out to anyone with experience.
I did not have issues with FE4 ride height / suspension (19x12 ZL1 1LE wheels). Nor issues up front with 315/30/19 R7 on 19x11 ZL1 1LE. You're probably 15mm lower than your FE4 set up.

Did you measure ride height delta between your stock FE4 set up and your FEA set up now?

I think a lot of ZL1 1LE guys have ran 345's on stock 12" rears or aftermarket with +41 offset.
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Old 08-09-2019, 01:30 PM   #32
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Originally Posted by RUQWIKR View Post
I did not have issues with FE4 ride height / suspension (19x12 ZL1 1LE wheels). Nor issues up front with 315/30/19 R7 on 19x11 ZL1 1LE. You're probably 15mm lower than your FE4 set up.

Did you measure ride height delta between your stock FE4 set up and your FEA set up now?

I think a lot of ZL1 1LE guys have ran 345's on stock 12" rears or aftermarket with +41 offset.
No, I didn't measure the FE4 vs FEA delta. The FEA sits lower, but I don't know by how much exactly.

I think you're right about others running the same 345 rear setup with the FEA. The tires just look awfully close to the quarter panel. I keep picturing a hard turn or bump on the track resulting in the need for a new panel, but in reality, it's probably fine.
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Old 08-09-2019, 09:30 PM   #33
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If you are motivated, what I've done on my track/autox cars where there wasn't much data was to remove the spring and articulate the wheel tire package thru its travel. Between variables like offset, tire selection, camber, etc its the only way to be sure. At least on the rear its rather easy to remove/reinstall the spring.
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Old 08-09-2019, 10:20 PM   #34
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Quote:
Originally Posted by travislambert View Post
Thanks! Your feedback seems pretty spot-on with my thoughts.

I'll keep those Apex wheels in mind. I think they're probably a good price/performance bargain, but I always wonder about the toughness when wheels are that cheap.

While researching, I did find a few cases where people have came home from a track day with a bent wheel without a known cause. The Apex guys seem to blow it off like it was a normal occurrence and that no wheel manufacturer is immune to that problem. While that may be true, it still makes me a little nervous if I'm being perfectly honest. Bent wheels with a known/justified cause wouldn't bother me, but if wheels are bending due to normal stresses on the track, that seems to be more of a problem.
I can tell you first hand that Apex makes a strong wheel. I ran them on my old track car (BMW M4) and I jump curbs anytime it benefits my lap time and I never had one bend on me.

My 2 cents...
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Old 08-10-2019, 11:06 AM   #35
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I can tell you first hand that Apex makes a strong wheel. I ran them on my old track car (BMW M4) and I jump curbs anytime it benefits my lap time and I never had one bend on me.

My 2 cents...
Good to know. I was considering their wheels, but they were not available yet in the ZL1 1LE sizes (not sure if they are available now or not).
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Old 08-10-2019, 03:21 PM   #36
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I just bought a set of 19x11 (11mm front, 43 mm rear offset) from Apex for a square 305 setup on a normal ZL1. I'll report back.
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Old 08-10-2019, 03:40 PM   #37
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Quote:
Originally Posted by travislambert View Post
Good to know. I was considering their wheels, but they were not available yet in the ZL1 1LE sizes (not sure if they are available now or not).
There was a group buy here a few months ago. Apex offered 19x11 and 12s. I signed up and paid the deposit. I'm not worried about the strength of their wheels. It's the delivery dates being dragged out again and again that concerns me. I'm sure once I get my set of wheels I'll be happy.
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Old 08-18-2019, 08:49 AM   #38
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I ran the new tire and wheel setup on Friday at PittRace. Overall impressions were good. I could hear some rubbing noise in one of the hard right-hand turns, but I could not find where it was rubbing. I used masking tape around the fenders, etc. with no luck. I'm sure once I take the wheels off for inspection, I'll find it.

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Old 08-18-2019, 09:35 AM   #39
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315 / 345 or 315 square? I can read the sidewall on the front pic. Thanks.
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Old 08-18-2019, 10:02 AM   #40
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315 / 345
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Old 08-19-2019, 09:46 AM   #41
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Do I spy a new Denali tow rig?
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Old 08-19-2019, 10:44 AM   #42
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Do I spy a new Denali tow rig?
You're close. It's an AT4. I hated to trade the '18 Raptor, but I needed a '19 GM 1500 test vehicle for my Autostop Eliminator business.
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