Fighting Nt555 G2 at autoX - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Alpha11 · 06-20-2021, 02:55 PM

I'm really fighting my nt555 g2s at autoX. I performed aweful yesterday. I'm living on ABS going into corners and fighting understeer all corner. Are these tires really this bad, or is there serious drivers mods to come? I'm still fairly new but I don't know if I'm asking too much if these tires or what? Not trying to drop 1500 this second on tires, but I might in a month if they are really this bad.

TIA

d kings z28 · 06-20-2021, 04:39 PM

Not to happy with mine they want more air than others read the tire psi

Alpha11 · 06-20-2021, 10:39 PM

Interesting. I'll try more psi. I had success at the drag strip with a small burnout and 28psi. I'll check the recommended pressures though and try again. I went from 30 to 28 yesterday. I'll try more

ariZona28 · 06-22-2021, 12:29 PM

Grab a tire crayon and do the old school method of finding your tires roll over point. Find the sidewall triangle and make a long mark onto the tread. After a run through the course check how far it has worn. Ideally you want the crayon line to be worn off to the top of the triangle. This is a good starting point and you can then adjust pressures to "fine tune". You don't need to wait for the next track day to try this technique, a late night "therapy session" can get you in the ballpark. I did this with my Z/28 for Auto X and my Z06 for road course racing. I'm a rookie at all of this twisty-turny stuff and it sure helped.

joelster · 06-23-2021, 06:35 AM

Those tires really are that bad. PS- good luck finding a big-boy 305+ autocross tire right now.

ronchev · 06-23-2021, 07:17 AM

The nt555 is not really a track type tire but more there street tire line, the nt05 or nt01 would have been a much better choice IMO for autox plus there are even better choices out for autox than Nitto, do some searching around on autox tires

redrum_maro · 07-12-2021, 05:04 PM

I like the nt555 for regular street driving but with spirited driving you can really feel that the tire struggles to keep the car on the intended line. My experience on my first track day with them I found myself oversteering but that was partially due to my tire pressure being a little high. I then had my car aligned with an aggressive street set up. The car did feel as if it were handling better, the front didn’t have so much under steer. On my autocross session the next time around I found myself over steering partially because of the way I was driving the car. So it depends as to how you drive the car. With my usual weekday canyon drive I find myself pushing the car to about 75-80% of my comfort level for that day and I like the way they feel with some easy but aggressive driving. I’ve also noted that after some normal driving the rubber becomes a little hard so the next time you drive aggressively you’ll need to put some heat and wear into the tires. With some heat I’ve noticed that the tire feels more direct. If I had to choose a new tire for performance driving and street use I’d considering going back into an Goodyear eagle f1 supercar g2 or try out the Michelin pilot sport. Only issue with these are wet weather handling that you don’t worry too much with the nt555.

What others have said is true, you can find better tires for autocross and road course. I know for a fact that I am heavily limited by these tires. In some threads I’ve read other people’s experiences with these tires and some have said that for cars with over 400hp you should consider the nt555r, others have also said that with heavier cars these tires will struggle. The Camaro SS even with the l99 is already at the threshold of not being sufficient by the standards that these people have set. Considering that the Camaro nears 4000 pounds with a driver, this is considered a heavy set up and the tires will struggle with all the forces that are being exerted on them.

06-20-2021, 02:55 PM	#1
Alpha11 Drives: 2012 Camaro SS Join Date: Aug 2018 Location: Indiana Posts: 14	Fighting Nt555 G2 at autoX I'm really fighting my nt555 g2s at autoX. I performed aweful yesterday. I'm living on ABS going into corners and fighting understeer all corner. Are these tires really this bad, or is there serious drivers mods to come? I'm still fairly new but I don't know if I'm asking too much if these tires or what? Not trying to drop 1500 this second on tires, but I might in a month if they are really this bad. TIA

06-20-2021, 04:39 PM	#2
d kings z28 Drives: 2014 white z28 Join Date: Apr 2019 Location: Washington Posts: 174	Not to happy with mine they want more air than others read the tire psi __________________ DGK’s Z’s

06-22-2021, 12:29 PM	#4
ariZona28 Give speed a chance Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019 Location: Mesa, Az Posts: 2,232	Grab a tire crayon and do the old school method of finding your tires roll over point. Find the sidewall triangle and make a long mark onto the tread. After a run through the course check how far it has worn. Ideally you want the crayon line to be worn off to the top of the triangle. This is a good starting point and you can then adjust pressures to "fine tune". You don't need to wait for the next track day to try this technique, a late night "therapy session" can get you in the ballpark. I did this with my Z/28 for Auto X and my Z06 for road course racing. I'm a rookie at all of this twisty-turny stuff and it sure helped. Attached Images __________________ 2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.

06-23-2021, 06:35 AM	#5
joelster Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009 Location: Cheektowaga, NY Posts: 1,282	Those tires really are that bad. PS- good luck finding a big-boy 305+ autocross tire right now. __________________ 1973 Mach 1, 351C cruiser '15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z

06-20-2021, 10:39 PM	#3
Alpha11 Drives: 2012 Camaro SS Join Date: Aug 2018 Location: Indiana Posts: 14	Interesting. I'll try more psi. I had success at the drag strip with a small burnout and 28psi. I'll check the recommended pressures though and try again. I went from 30 to 28 yesterday. I'll try more

06-23-2021, 07:17 AM	#6
ronchev Drives: 14' Red Z/28 #336 Join Date: Mar 2016 Location: Northen Indiana Posts: 367	The nt555 is not really a track type tire but more there street tire line, the nt05 or nt01 would have been a much better choice IMO for autox plus there are even better choices out for autox than Nitto, do some searching around on autox tires

07-12-2021, 05:04 PM	#7
redrum_maro Runs on caffeine Drives: 2010 Camaro SS Join Date: Apr 2020 Location: Somewhere driving fast Posts: 120	I like the nt555 for regular street driving but with spirited driving you can really feel that the tire struggles to keep the car on the intended line. My experience on my first track day with them I found myself oversteering but that was partially due to my tire pressure being a little high. I then had my car aligned with an aggressive street set up. The car did feel as if it were handling better, the front didn’t have so much under steer. On my autocross session the next time around I found myself over steering partially because of the way I was driving the car. So it depends as to how you drive the car. With my usual weekday canyon drive I find myself pushing the car to about 75-80% of my comfort level for that day and I like the way they feel with some easy but aggressive driving. I’ve also noted that after some normal driving the rubber becomes a little hard so the next time you drive aggressively you’ll need to put some heat and wear into the tires. With some heat I’ve noticed that the tire feels more direct. If I had to choose a new tire for performance driving and street use I’d considering going back into an Goodyear eagle f1 supercar g2 or try out the Michelin pilot sport. Only issue with these are wet weather handling that you don’t worry too much with the nt555. What others have said is true, you can find better tires for autocross and road course. I know for a fact that I am heavily limited by these tires. In some threads I’ve read other people’s experiences with these tires and some have said that for cars with over 400hp you should consider the nt555r, others have also said that with heavier cars these tires will struggle. The Camaro SS even with the l99 is already at the threshold of not being sufficient by the standards that these people have set. Considering that the Camaro nears 4000 pounds with a driver, this is considered a heavy set up and the tires will struggle with all the forces that are being exerted on them.