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05-12-2021, 10:33 AM
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#1 |
   
Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013
Location: Cary, NC
Posts: 1,137
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Nitto NT555RII
For those of you running the NT555RII in the rear... What kind of pressure are you guys running?
Book says 26psi for drag racing. So, I am curious what street pressures you guys are running. I have mine set at 38psi for now, but I am unsure that is optimal for around town driving.
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People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...
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05-12-2021, 10:40 AM
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#2 |
Drives: 2017 ZL1 Join Date: Jan 2017
Location: NJ
Posts: 905
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I think I set mine to 32 psi on the street right now cold.
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2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)
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05-12-2021, 10:41 AM
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#3 |
      Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,109
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I've run mine at 28-30psi for daily driving. Feels like the best compromise.
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05-12-2021, 10:50 AM
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#4 |
 
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,806
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26psi
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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05-12-2021, 11:23 AM
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#5 |
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Drives: 2018 ZL1 Camaro 6M Red Hot Join Date: Aug 2013
Location: Cary, NC
Posts: 1,137
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Thanks for the replies...
I will definitely be lowering my pressure when I get home. Didn't drive it today... It is raining here in NC...
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People are a lot like slinky's: not very helpful most of the time, but they bring a smile to your face when pushed down the stairs...
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05-12-2021, 11:35 AM
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#6 | |
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Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,109
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Quote:
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05-12-2021, 11:43 AM
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#7 |
 
Drives: 2018 ZLE M6, '15 CLS 63s AMG Join Date: Jun 2017
Location: Valley Forge PA
Posts: 45
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32psi street I'm going to set @ 26psi track
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05-12-2021, 11:47 AM
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#8 |
 
Drives: '17 ZL1 M6 Join Date: Apr 2021
Location: Earth
Posts: 108
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32psi for the street, hooks really well and very stable at high speeds
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'17 ZL1 M6
8xxwhp Magnuson 2650 |
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05-12-2021, 12:40 PM
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#9 |
Drives: 2020 ZL1 Camaro Join Date: Apr 2021
Location: Deer Park, TX
Posts: 23
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I run 28 PSI on the street.
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2020 Camaro ZL1 A10
Hawk Performance ceramic brake pads Roto-Fab Big Gulp cold air E85 flex fuel Low temp thermostat Nitto NT555R2 drag radials Custom tuned by MTI-Houston |
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05-12-2021, 06:42 PM
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#10 |
 Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
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I run mine 28 street and track. Very pleased with them
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2017 ZL1 M6 Silver Ice Metallic
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05-12-2021, 06:57 PM
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#11 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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I run 20 psi on my 285-40-18s at the track on my C7. I also run the 305-35-19 R2s on the street and run 28 psi in those. They keep it running pretty straight at Wot and my Michelins suck on the street so only run those for longer trips. Your gonna get some pretty severe wear if you run those at 38 psi
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
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05-13-2021, 08:11 AM
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#12 |
Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009
Location: Tampa
Posts: 5,110
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mine are at 31psi and seem to do well
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Sold 2012 2LT RS 12.3@112 old setup
Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 ** Born 3/17/17**Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. **807hp/762tq on 93 gas** and **848hp/792tq on e47** Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive |
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05-13-2021, 09:25 AM
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#13 |
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Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,806
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Anything over 28 psi isn't utilizing these tires capability. Per Dragy I 60ft 1.75(3.0 0-60) on a unprepped street with 305/35/20 @ 26 psi. I have tried running above 28 psi to keep the tire light off and 1.9(3.3 0-60) is the best I can do. A well prepped track might yield different results.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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05-13-2021, 11:45 AM
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#14 | |
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Drives: High HP V8 Join Date: Apr 2020
Location: FL
Posts: 115
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Quote:
I think I might try a lower psi like your running. I have the 555R2s on my stock Hellcat in a 305-35-20 and I’d thought it would be a huge game changer but honestly I’m not really impressed. Maybe I could be the small group of folks that didn’t have much luck with the Nittos. I have been currently running them around 28-30 psi on the street. I lowered them to about 25 psi but wasn't able to test it out yet. I’m not sure if it’s too low since the TPMS went off. Should I air them back up a bit? For what it’s worth these tires held up just well in the rain with no sense of feeling insecure driving them in the wet. |
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