Best launch pressure for NT05R? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

leemozoid · 04-11-2019, 11:18 PM

What's the safest lowest psi anyone here has used on a non-bead locked rim? I plan on launching in 2nd gear with the nannies off with a 2 step. Currently about 700 rwhp and 3600 rpm stall.

dru21281 · 04-12-2019, 12:19 AM

You can try as low as 18-22psi. If the tires are low profile don't go too low., what size are they? Start around 26psi hot and drop 2-4 psi each time and try again.

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leemozoid · 04-12-2019, 06:41 AM

The 18" profile equivalent of the OEM 20" tire.

acammer · 04-12-2019, 07:39 AM

I hit my 305/45/18 NT05R's at 18psi and they seem to like it there. I'm not sure they will tolerate much lower.

sulrich · 04-27-2019, 08:55 AM

I've been running 17 PSI in the Nitto NT05R drag radial 315/35R20 tires. It did 11.859 seconds at 120.08 MPH and several 11.9 runs in my manual ZL1 with 644 rwhp. The car does 11.407 at 122.6 MPH with Hoosier Drag Slicks 28x10-17 D06 at 15 PSI.

Vegas Bound · 04-27-2019, 10:58 AM

I had 305/45/18 NT05R for a while and found 18 psi was my sweet spot.
Do yourself a favor and get a set of 17s.

JB'sZL1 · 04-27-2019, 11:07 AM

Quote:

Originally Posted by Vegas Bound

Do yourself a favor and get a set of 17s.

I thought 17's required a lot of work on the rear to fit.

Vegas Bound · 04-27-2019, 01:56 PM

Quote:

Originally Posted by JB'sZL1

I thought 17's required a lot of work on the rear to fit.

If zip tying the e-brake cable back is a lot of work, then yes it takes a lot of work.

04-11-2019, 11:18 PM	#1
leemozoid Drives: '15 Silverado LTZ & '13 ZL1 ragtop Join Date: Nov 2016 Location: Edmond, Oklahoma Posts: 313 View My Garage	Best launch pressure for NT05R? What's the safest lowest psi anyone here has used on a non-bead locked rim? I plan on launching in 2nd gear with the nannies off with a 2 step. Currently about 700 rwhp and 3600 rpm stall.

04-12-2019, 07:39 AM	#4
acammer GPI Sales Consultant Drives: 2011 Camaro 2SS SGM Join Date: Jul 2016 Location: Weedsport, NY Posts: 2,794 View My Garage	I hit my 305/45/18 NT05R's at 18psi and they seem to like it there. I'm not sure they will tolerate much lower. __________________ GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph. *Got a question about a GPI product? Feel free to shoot me a message!*

04-27-2019, 08:55 AM	#5
sulrich Steve Drives: 2014 ZL1 Vert Red & 2012 ZL1 Black Join Date: Sep 2014 Location: United States Posts: 10 View My Garage	I've been running 17 PSI in the Nitto NT05R drag radial 315/35R20 tires. It did 11.859 seconds at 120.08 MPH and several 11.9 runs in my manual ZL1 with 644 rwhp. The car does 11.407 at 122.6 MPH with Hoosier Drag Slicks 28x10-17 D06 at 15 PSI. __________________

04-12-2019, 12:19 AM	#2
dru21281 Join Date: Apr 2014 Posts: 138	You can try as low as 18-22psi. If the tires are low profile don't go too low., what size are they? Start around 26psi hot and drop 2-4 psi each time and try again. Sent from my Pixel 2 XL using Tapatalk

04-12-2019, 06:41 AM	#3
leemozoid Drives: '15 Silverado LTZ & '13 ZL1 ragtop Join Date: Nov 2016 Location: Edmond, Oklahoma Posts: 313 View My Garage	The 18" profile equivalent of the OEM 20" tire.

04-27-2019, 10:58 AM	#6
Vegas Bound Account Suspended Drives: 2013 Sparkly Red One Join Date: Dec 2018 Location: Hospitality State Posts: 2,558	I had 305/45/18 NT05R for a while and found 18 psi was my sweet spot. Do yourself a favor and get a set of 17s.