Tire advise needed for endurance racing 370z

m13s · 01-25-2017, 01:09 PM

Hi All

Rules state tires must be 180 UQTG.

Race is 9 hour sat/sun, 5 drivers and a friday full day of practice. One set of tires to start with on friday and through saturday, if they are still good we will run them, if not fresh set on sunday.
The glen is the first race and it is easy on tires after the repave.I ran in a BMW there last year and the Falken's looked brand new after three days of racing. (It was cold and wet half of the time)

Looking for input on what tires are recommended for the following:
2009 370z
18x10.5 Squared
Enkei NT03+ rims
-4 front camber
-2.5 rear camber
JRZ remote 2 way adjustable
Don't have the spring rates handy

Rules state tires must be 180 UQTG.

We have looked at the following:
Falken Azenis
Bridgestone Potenza RE-71R
Direzza ZII Star Spec
Nitto NT-05
We are leaning towards the RE71R but I am hearing of potential lack of longevity. (At the glen this may not be a problem, see comment above.)

Any endurance guys out there with recommendations ?

Thanks in advance

-M

Halfkiddio · 01-25-2017, 01:34 PM

The RE-71R will not hold up in endurance racing. It has been proven many times in Chumpcar and AER. The RT-615K is well liked, as are the NT05's and ZII SS. The NT05's are a little on the slow side, and might not do well on the heavier Z chassis depending on your spring rates and aero setup.

You may also want to look at the outgoing RS3, although availability might be hard now that the RS4 is coming out in March. The ZII SS will also be getting replaced at some point this year, but no details are really official on that yet.

Another tire to look at is the Nexen SUR4. They have been proven to be long lasting with pretty high grip levels.

m13s · 01-25-2017, 01:40 PM

Quote:

Originally Posted by Halfkiddio

The RE-71R will not hold up in endurance racing. It has been proven many times in Chumpcar and AER. The RT-615K is well liked, as are the NT05's and ZII SS. The NT05's are a little on the slow side, and might not do well on the heavier Z chassis depending on your spring rates and aero setup.

You may also want to look at the outgoing RS3, although availability might be hard now that the RS4 is coming out in March. The ZII SS will also be getting replaced at some point this year, but no details are really official on that yet.

Another tire to look at is the Nexen SUR4. They have been proven to be long lasting with pretty high grip levels.

Thanks, much appreciated !

m13s · 01-25-2017, 04:10 PM

We have it narrowed down to the Hankook Rs4 and Dunlop Direzza.

Halfkiddio · 01-25-2017, 04:27 PM

Either of those will do you well. Keep us updated on the season! Do you guys have a Facebook page we can follow?

Hotrodz · 01-25-2017, 04:50 PM

Another tire to look at are the new Continentals that are coming out...would be good for wet conditions. They are getting some good reviews.

Check out the time trials Super Street has done. Conti supplied the tires.

Sent from my SM-N910P using Tapatalk

m13s · 01-29-2017, 09:02 AM

Quote:

Originally Posted by Halfkiddio

Either of those will do you well. Keep us updated on the season! Do you guys have a Facebook page we can follow?

I dont use FB but we have a website that we just put up - not much on it but we will start to populate soon
team200.us

SurfDog · 02-08-2017, 06:39 PM

Toyo RA1s are DOT legal and way better for longevity than any performance street tyres. I ran many many track days on 18 inch square fit 18x275s. Highly recommended!!

01-25-2017, 01:09 PM	#1 (permalink)
m13s Base Member Join Date: Dec 2016 Location: MA Posts: 49 Drives: 2009 370z Rep Power: 8	Tire advise needed for endurance racing 370z Hi All Rules state tires must be 180 UQTG. Race is 9 hour sat/sun, 5 drivers and a friday full day of practice. One set of tires to start with on friday and through saturday, if they are still good we will run them, if not fresh set on sunday. The glen is the first race and it is easy on tires after the repave.I ran in a BMW there last year and the Falken's looked brand new after three days of racing. (It was cold and wet half of the time) Looking for input on what tires are recommended for the following: 2009 370z 18x10.5 Squared Enkei NT03+ rims -4 front camber -2.5 rear camber JRZ remote 2 way adjustable Don't have the spring rates handy Rules state tires must be 180 UQTG. We have looked at the following: Falken Azenis Bridgestone Potenza RE-71R Direzza ZII Star Spec Nitto NT-05 We are leaning towards the RE71R but I am hearing of potential lack of longevity. (At the glen this may not be a problem, see comment above.) Any endurance guys out there with recommendations ? Thanks in advance -M

01-25-2017, 04:50 PM	#6 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	Another tire to look at are the new Continentals that are coming out...would be good for wet conditions. They are getting some good reviews. Check out the time trials Super Street has done. Conti supplied the tires. Sent from my SM-N910P using Tapatalk __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

02-08-2017, 06:39 PM	#8 (permalink)
SurfDog A True Z Fanatic Join Date: May 2012 Location: Colorado (9000 feet) Age: 56 Posts: 1,796 Drives: 09 6mt, 13 Sequoia, Rep Power: 15749	Toyo RA1s are DOT legal and way better for longevity than any performance street tyres. I ran many many track days on 18 inch square fit 18x275s. Highly recommended!! __________________ 09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

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01-25-2017, 01:34 PM	#2 (permalink)
Halfkiddio Enthusiast Member Join Date: Jan 2015 Location: Knoxville Age: 30 Posts: 250 Drives: 09 RAE 370Z Rep Power: 10	The RE-71R will not hold up in endurance racing. It has been proven many times in Chumpcar and AER. The RT-615K is well liked, as are the NT05's and ZII SS. The NT05's are a little on the slow side, and might not do well on the heavier Z chassis depending on your spring rates and aero setup. You may also want to look at the outgoing RS3, although availability might be hard now that the RS4 is coming out in March. The ZII SS will also be getting replaced at some point this year, but no details are really official on that yet. Another tire to look at is the Nexen SUR4. They have been proven to be long lasting with pretty high grip levels.

01-25-2017, 04:10 PM	#4 (permalink)
m13s Base Member Join Date: Dec 2016 Location: MA Posts: 49 Drives: 2009 370z Rep Power: 8	We have it narrowed down to the Hankook Rs4 and Dunlop Direzza.

01-25-2017, 04:27 PM	#5 (permalink)
Halfkiddio Enthusiast Member Join Date: Jan 2015 Location: Knoxville Age: 30 Posts: 250 Drives: 09 RAE 370Z Rep Power: 10	Either of those will do you well. Keep us updated on the season! Do you guys have a Facebook page we can follow?