[ZR1] Cup tires on track
10-04-2012, 01:49 PM
#1
Instructor
Thread Starter
Cup tires on track
Does anyone know what minimum ambiant (outside) temperatures are required to run the cup tires? I may do a late Nov track day and I'm not sure I should run the cup or PS2's.
10-04-2012, 02:17 PM
#2
I found this for the Pilot Sport Cup:
http://www.tirerack.com/tires/tires....t+Sport+Cup+ZP
and if you click on the bottom link on that same page under "Storing Track & Competition DOT Tires in Cold Temperatures" it shows to not drive over 40F...
which seem to be the same advice in the Camaro ZL1 forums. Goodyear put out this bulletin with pics of tires cracking in 20F degree...
"PSB #2011-10
TO: Goodyear Contract Dealers, Goodyear Canada Inc. Dealers, Goodyear Company Owned Stores
Subject: Eagle F1 Supercar G:2 Summer Tires Not Recommended for Winter Use
Goodyear F1 Supercar G:2’s are D.O.T. approved ultra high performance summer tires with track capability. The rubber used in these tires loses flexibility and may develop surface cracks in the tire tread/shoulder area at colder temperatures. Goodyear does not recommend using these high performance summer tires when temperatures drop to approximately 40 deg F (5 deg C) or below, or in snow/ice conditions.
Tire Storage
Follow the general tire storage recommendations in Product Service Bulletin 2010-21, Proper Procedures for the Storage of Tires. Further, it is recommended for these tires to be stored indoors at temperatures above 20 deg F (-7 deg C) when not in use. If the tires have been subject to 20 deg F (-7 deg C) or less, let them warm up in a heated space to at least 40 deg F for 24 hours or more before installation or driving the vehicle. Inflate the tires only after they have been warmed above 40 deg F (5 deg C). Do not place tires near heaters or heating devices used to warm the room where the tires are stored. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use after storage periods as outlined in the Proper Procedures for the Storage of Tires bulletin.
THE GOODYEAR TIRE & RUBBER COMPANY, GOODYEAR CANADA INC.
PRODUCT SERVICE DEPARTMENT"
http://www.tirerack.com/tires/tires....t+Sport+Cup+ZP
and if you click on the bottom link on that same page under "Storing Track & Competition DOT Tires in Cold Temperatures" it shows to not drive over 40F...
which seem to be the same advice in the Camaro ZL1 forums. Goodyear put out this bulletin with pics of tires cracking in 20F degree...
"PSB #2011-10
TO: Goodyear Contract Dealers, Goodyear Canada Inc. Dealers, Goodyear Company Owned Stores
Subject: Eagle F1 Supercar G:2 Summer Tires Not Recommended for Winter Use
Goodyear F1 Supercar G:2’s are D.O.T. approved ultra high performance summer tires with track capability. The rubber used in these tires loses flexibility and may develop surface cracks in the tire tread/shoulder area at colder temperatures. Goodyear does not recommend using these high performance summer tires when temperatures drop to approximately 40 deg F (5 deg C) or below, or in snow/ice conditions.
Tire Storage
Follow the general tire storage recommendations in Product Service Bulletin 2010-21, Proper Procedures for the Storage of Tires. Further, it is recommended for these tires to be stored indoors at temperatures above 20 deg F (-7 deg C) when not in use. If the tires have been subject to 20 deg F (-7 deg C) or less, let them warm up in a heated space to at least 40 deg F for 24 hours or more before installation or driving the vehicle. Inflate the tires only after they have been warmed above 40 deg F (5 deg C). Do not place tires near heaters or heating devices used to warm the room where the tires are stored. Do not apply heat or blow heated air directly on the tires. Always inspect tires before use after storage periods as outlined in the Proper Procedures for the Storage of Tires bulletin.
THE GOODYEAR TIRE & RUBBER COMPANY, GOODYEAR CANADA INC.
PRODUCT SERVICE DEPARTMENT"
10-04-2012, 05:05 PM
#3
Melting Slicks
Thanks for that info. now wait for the dd/driving in the winter people chime in....
10-04-2012, 05:44 PM
#4
Le Mans Master
Cups will be fine for a November track day in GA, but you'll have to drive a few laps at a slower pace to get the tires up to temp before they will grip to any measurable degree.