Missed my plane today...
10-08-2009, 02:00 PM
#18
Nordschleife Master
10-08-2009, 02:07 PM
#19
Nordschleife Master
Overinflation and underinflation both cause center wear in low profile tires. However, under-inflation is worse as it can rip the tire apart at high speed due to centrifugal force.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
10-08-2009, 02:35 PM
#21
Three Wheelin'
Also looks like no tread on that tire - what tire was it? Maybe just past its expiration date?
10-08-2009, 02:48 PM
#22
Three Wheelin'
Overinflation and underinflation both cause center wear in low profile tires. However, under-inflation is worse as it can rip the tire apart at high speed due to centrifugal force.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
What with there being a range - about 5lbs wide - depending on load and speed (higher pressure spec'ed for 100mph+ and for fully loaded car) why would anyone run too low or too high? Tires lose a lb a month on average, so it makes sense to check often and tweak them up. The ride of these cars is so dramatically affected by tires and tire pressures, it seems nuts to pay so much to get a car with this potential and not invest $50 on a pump and $20 on a digital tire meter - or some reasonable equivalents: Check the TPM on departure/Check the Oil on return - a nice habit to get into.
10-08-2009, 02:55 PM
#23
Nordschleife Master
To the OP: Did you have any TPMS warning?
10-08-2009, 07:43 PM
#26
Instructor
Join Date: Jul 2008
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This thing is worth its weight in gold.
http://www.blackanddecker.com/Produc...roductID=15542
Dial in the pressure and let it do its thing. Very accurate too. Verified the pressure with a digital gauge after it stopped inflating.
http://www.blackanddecker.com/Produc...roductID=15542
Dial in the pressure and let it do its thing. Very accurate too. Verified the pressure with a digital gauge after it stopped inflating.
10-08-2009, 09:16 PM
#28
Drifting
10-08-2009, 11:02 PM
#29
Nordschleife Master
10-09-2009, 12:48 AM
#30
Nordschleife Master
Overinflation and underinflation both cause center wear in low profile tires. However, under-inflation is worse as it can rip the tire apart at high speed due to centrifugal force.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
I learned this years ago when my rear 996 C4 tires were wearing in the center and I was running at 39/40PSI when the car called for 44PSI. My tire shop told me that was due to under-inflation and made me think the characteristics/dynamics of wide, low profile tires, with stiff sidewalls.
This is why it is important to run the correct pressures. Erring slightly on the high side is better than the low side as I have seen tires blown to pieces due to low pressure.
that is clearly sign of under-inflation separation...