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09-19-2018, 06:53 AM
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#1 |
    
Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009
Location: Cheektowaga, NY
Posts: 1,281
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18" Wheel Fitment?
Has anyone tried to install a set onto a Z/28 yet? I did a search and came up with nothing. I'm looking to run a different class next year and an 18" wheel opens up a ton of more tire choices. I don't want to go 20" and increase the diameter and effect the gearing. Though it will be negligible.
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1973 Mach 1, 351C cruiser
'15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z  |
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09-19-2018, 07:06 AM
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#2 |
Drives: 2015 Z/28 #0058 Join Date: Apr 2018
Location: Pittsburgh, PA
Posts: 814
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Calipers are too big for 18's
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Current:
- '15 Z/28 #0058 | White | A/C | Speakers | Michelin PS4S 305/30/19's - '22 Ridgeline RTL | White | Ebony, '22 CR-V EX-L Hybrid | White | Ebony Sold: - '15 Z/28 #0048 | White | A/C | Speakers | Michelin PS4S 305/30/19's https://www.instagram.com/__jon__athan__/ |
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09-19-2018, 07:49 AM
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#3 | |
   
Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012
Location: Southeast, PA
Posts: 2,087
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Quote:
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LS3 Crate Engine Swap | CSP Custom Cam 232/240 .615/.615 113 +3 | Stainless Power LT Headers | Z28 Intake | Borla S-Type Exhaust | FTI Triple-Disc Billet 3200 Stall
2012 Camaro 2SS/RS | 1968 Camaro SS | 2020 Cadillac CT5 Premium Luxury | 2021 Spark LS  |
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09-19-2018, 07:58 AM
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#4 | |
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Drives: . Join Date: Jun 2016
Location: .
Posts: 589
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Quote:
https://www.camaro5.com/forums/showt...ghlight=forged  Also this thread with Forgelines: https://www.camaro5.com/forums/showthread.php?t=485882 regards, Pat |
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09-19-2018, 08:11 AM
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#5 |
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Drives: 2015 Z/28 #0058 Join Date: Apr 2018
Location: Pittsburgh, PA
Posts: 814
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Looks damn good. Happy to be corrected with that example.
The barrel must be formed precisely perfect to account for the calipers
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Current:
- '15 Z/28 #0058 | White | A/C | Speakers | Michelin PS4S 305/30/19's - '22 Ridgeline RTL | White | Ebony, '22 CR-V EX-L Hybrid | White | Ebony Sold: - '15 Z/28 #0048 | White | A/C | Speakers | Michelin PS4S 305/30/19's https://www.instagram.com/__jon__athan__/ |
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09-19-2018, 09:20 AM
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#6 |
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@MrRaZ28
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This just opened up a whole bunch of options for me. Totally looking at 18's now just for the ability to get used take-off's! Thank you!!
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09-19-2018, 09:27 AM
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#7 | |
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Drives: 2015 Z/28 #0058 Join Date: Apr 2018
Location: Pittsburgh, PA
Posts: 814
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Quote:
__________________
Current:
- '15 Z/28 #0058 | White | A/C | Speakers | Michelin PS4S 305/30/19's - '22 Ridgeline RTL | White | Ebony, '22 CR-V EX-L Hybrid | White | Ebony Sold: - '15 Z/28 #0048 | White | A/C | Speakers | Michelin PS4S 305/30/19's https://www.instagram.com/__jon__athan__/ |
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09-19-2018, 11:52 AM
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#8 |
 Drives: 2015 Camaro Z/28 Join Date: Jul 2018
Location: FLORIDA
Posts: 66
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Why complicate your life? The stock size Z/28 wheels are wide enough ......
I put 325 size rears on yesterday. My fronts stayed 305. My Z looks amazing and the tires look super beefy and wide. |
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09-19-2018, 01:55 PM
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#9 |
 Drives: 2015 White Z28 Join Date: Aug 2018
Location: Chicago
Posts: 112
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When putting on the larger rear tires of 325 and keeping the fronts at 305 - would that produce more understeer when tracking the car? Newbie track question.
Sent from my iPhone using Tapatalk |
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09-19-2018, 03:25 PM
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#10 | |
Drives: 2015 Z28 Join Date: Jul 2011
Location: Vista, CA
Posts: 127
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Quote:
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09-19-2018, 03:39 PM
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#11 | |
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@MrRaZ28
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Quote:
Edit: It's not about how wide the rims are... I have 325's all the way around with no issues. BUT, I want track wheels and tires, and the cost of OEM wheels right now is ridiculous and not easy to find. Even more so for 19" track tires. 18's are more common. I have already located a site that has race take-off Michelin slicks for $125 each in 18's. As for the understeer, absolutely it will. That's why GM didn't do it. They wanted to do staggered, which is why the rear rim is half an inch wider but found out the squared setup is more controllable. |
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09-19-2018, 05:01 PM
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#12 | |
 Drives: Z/28 Join Date: Jan 2015
Location: Bay Area
Posts: 275
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Quote:
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09-19-2018, 06:56 PM
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#13 | |
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Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009
Location: Cheektowaga, NY
Posts: 1,281
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Quote:
The A7's for 19" rims are $488 each. For 18" rims they are $402. They also don't make them in our factory size. They make them slightly bigger. I run the stock wheels with a tw200 Potenza now. That keeps me legal in most classes. If I have to buy rims I might as well get a set that is as small as possible to reduce weight and reduce diameter to get a teensy bit better snap out of the corners (2nd gear). Not to mention they will be slightly cheaper and open up the tire choices immensely.
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1973 Mach 1, 351C cruiser
'15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z |
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09-19-2018, 09:40 PM
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#14 |
 
Drives: 2015 Camaro Z28, 1974 Turbo Nova Join Date: Feb 2016
Location: Kansas
Posts: 438
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Post up some pics of 325 tires please.
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2015 Chevy Camaro Z28 505HP (CURRENT)
1974 Chevy Nova Small Block Forged 350, Turbocharged 600 HP (CURRENT) 2016 Dodge Challenger R/T Scat Pack 485 HP (SOLD) 2014 Ram 1500 Sport (SOLD) 2010 Camaro 2SS/RS (SOLD) 2000 Camaro Z28 Turbocharged 700HP (SOLD) 2005 Dodge Ram SRT10 530HP (SOLD) 2004 Pontiac GTO 425HP (SOLD) 2006 Trailblazer SS 550HP (SOLD)  |
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