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Old 04-12-2019, 12:18 AM   #1
leemozoid
 
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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.
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Old 04-12-2019, 01:19 AM   #2
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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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Old 04-12-2019, 07:41 AM   #3
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The 18" profile equivalent of the OEM 20" tire.
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Old 04-12-2019, 08:39 AM   #4
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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.
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Old 04-27-2019, 09:55 AM   #5
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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.
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Old 04-27-2019, 11:58 AM   #6
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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.
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Old 04-27-2019, 12:07 PM   #7
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Quote:
Originally Posted by Vegas Bound View Post
Do yourself a favor and get a set of 17s.
I thought 17's required a lot of work on the rear to fit.
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Old 04-27-2019, 02:56 PM   #8
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Quote:
Originally Posted by JB'sZL1 View Post
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.
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