What is your stock tire pressure? - Page 2 - Toyota Yaris Forums

centrysis · 07-20-2010, 08:28 PM

Quote:

Originally Posted by R2D2

I run mine at 60 psi as well. Might be a tad more road noise but the car rolls freely and handles great.

whats the max pressure on your tire.i've always ran a higher tire pressure but never over the max.i heard its not good.

STC · 07-20-2010, 08:50 PM

42 psi Summer and Winter...

Longevity, wear, and lower tire resistance!

Cheers!

goliath1812 · 07-20-2010, 09:00 PM

40 psi on all 4, pretty much all the time.

bronsin · 07-20-2010, 09:50 PM

How many psi does it take to make a tire explode? I dont mean running it so it heats up and goes bang. I mean blowing it up like a balloon and POW!

BailOut · 07-20-2010, 10:33 PM

Quote:

Originally Posted by bronsin

How many psi does it take to make a tire explode? I dont mean running it so it heats up and goes bang. I mean blowing it up like a balloon and POW!

It would take more pressure tan any pump I know of can deliver. Think about when your tire hits a pothole, or even better a pavement drop. The g-force is enough to increase the PSI exponentially and rapidly, but tire blowouts are rare.

djct_watt · 07-20-2010, 11:51 PM

Quote:

Originally Posted by BailOut

It would take more pressure tan any pump I know of can deliver. Think about when your tire hits a pothole, or even better a pavement drop. The g-force is enough to increase the PSI exponentially and rapidly, but tire blowouts are rare.

In general, this is true. Over-inflation increases your odds of a blowout when encountering rough terrain or a pothole. But an under-inflated tire is just as bad if not worse.

However, if you have damage to your tires, especially to the sidewall in the form of heavy curb damage, your tires will be significantly weaker, leaving the possibility of pop while pumping.

KrazyDawg · 07-21-2010, 01:22 PM

Quote:

Originally Posted by djct_watt

In general, this is true. Over-inflation increases your odds of a blowout when encountering rough terrain or a pothole. But an under-inflated tire is just as bad if not worse.

However, if you have damage to your tires, especially to the sidewall in the form of heavy curb damage, your tires will be significantly weaker, leaving the possibility of pop while pumping.

Some people have probably seen this link before. It's an article about officers using tire pressures rated for max sidewell.

http://www.officer.com/web/online/Editorial-and-Features/Driving-Under-Pressure/19$27281

frog13 · 07-21-2010, 09:14 PM

Quote:

Originally Posted by djct_watt

41psi. . .

. . . because of prolonged speeds over 130kph, mileage, and tire longevity (I always wear out the outsides of the tire first and over-inflation gives we even wear).

Over inflating does not give you even wear.

frog13 · 07-21-2010, 09:16 PM

Quote:

Originally Posted by BailOut

It would take more pressure tan any pump I know of can deliver. Think about when your tire hits a pothole, or even better a pavement drop. The g-force is enough to increase the PSI exponentially and rapidly, but tire blowouts are rare.

Expo what?

frog13 · 07-21-2010, 09:19 PM

Quote:

Originally Posted by BailOut

I run 60 PSI year round for both lower rolling resistance and much stiffer performance in the switchbacks in the mountains here.

Folks on this forum go ape shit every time I bring this up so be prepared for a thread derailment, but the only things I'll say are that I've never had a problem with this, it brought greater longevity to my tires, and I've even avoided becoming the 4th car in a 3 car accident thanks to my preparedness and alertness as well as the car's agile handling, even at 60 PSI. I even had a big puncture from a gnarly piece of metal I picked up and it didn't act any differently than blowing a tire at 35 PSI.

It just works, so get over it.

djct_watt · 07-21-2010, 10:43 PM

Quote:

Originally Posted by KrazyDawg

Some people have probably seen this link before. It's an article about officers using tire pressures rated for max sidewell.

http://www.officer.com/web/online/Editorial-and-Features/Driving-Under-Pressure/19$27281

Yeah, I agree with everything the article says. But it does not mention damaged tires. If a tire is already damaged, high PSI will stress those damage points, but you shouldn't be driving around on a damaged on sidewall anyway. But hey, I could be wrong as it is just based on my experience.

djct_watt · 07-21-2010, 10:47 PM

Quote:

Originally Posted by frog13

Over inflating does not give you even wear.

Well, if you are heavy in your cornering, you will get heavy sidewall deflection (especially in a 60 series tire), thus wearing out the corners faster. Over-inflation minimizes this and CAN (in some instances) result in more even tire wear.

Hershey · 07-22-2010, 12:49 AM

35 > 36 p.s.i.. Tried higher and it was choppier and felt those lousy roads / streets more and hear more rattles spring up . Few years ago we test drove a new '06 XB and it road like a brick on wheels

. Could of used a styrofoam donut . Went back again to check tire pressure of the same XB and they were at 40+ p.s.i.. Let air out of each tire to about 35 p.s.i. and road much better . Ahhhhh relief

. All in preference .

1stToyota · 07-23-2010, 03:04 PM

Quote:

Originally Posted by KrazyDawg

Some people have probably seen this link before. It's an article about officers using tire pressures rated for max sidewell.

http://www.officer.com/web/online/Editorial-and-Features/Driving-Under-Pressure/19$27281

Their tires are most likely V, W, Y or Z rated, because they're concerned about high speeds, not long coasting.

djct_watt · 07-23-2010, 04:27 PM

^ back in 2002 I used to buy used CHP tires from the CHP training facility in Sacramento. They ran 205/65/R15 V rated pirelli's. It was awesome because they still had half their life on them and ran leas than a 1/4 of the price.

SilverBack · 07-23-2010, 04:42 PM

40 PSI at first to save a buck on gas, but I'll lower it to 38 or 36 when I notice the center section of the tread wearing down a little faster than the rest.

Thai_Dang · 07-24-2010, 01:50 AM

i bought mines new, and it came from the dealership pumped to 44 psi for the 15''. i didn't even know they can be pumped up to 60.

fluke_boy · 07-24-2010, 04:58 AM

When I first got mine from the dealer I noticed the low tire pressure light was on. I pulled over and scanned the owners manual and found out what the low tire pressure light meant as I had no idea at first. Pumped it up to 32 and it has stayed that way ever since. I guess I'll try 35 - 36 for the 15" when I next gas up.

07-20-2010, 08:50 PM	#20
STC "LibertyRides!" View User's Garage Drives: 2010 Yaris 3Dr LB \| 2020 Stang Join Date: Mar 2010 Location: State College, PA, USA Posts: 576	42 psi Summer and Winter... Longevity, wear, and lower tire resistance! Cheers! __________________ ~ Mark ~ 2010 Yaris 3-Dr Liftback, 5-Speed Manual, P185/60R 15, Bayou Blue Pearl I Love my YARIS - (Click below to see Gaslog): Most miles Tank: 538 tank/10.148 gal = 53.015 MPG / Most MPG: 54.95 MPG (ethanol) 425 tank/7.73 gal "The evils of government are directly proportional to the tolerance of the people." -- Frank Kent

07-20-2010, 09:00 PM	#21
goliath1812 View User's Garage Drives: 2010 Prius, 2007 Yaris Sedan Join Date: Oct 2009 Location: Ocala Florida Posts: 368	40 psi on all 4, pretty much all the time. __________________

07-23-2010, 04:42 PM	#34
SilverBack Joey View User's Garage Drives: '14 Scion xD 5-speed Join Date: Oct 2008 Location: El Monte, Ca Posts: 3,529	40 PSI at first to save a buck on gas, but I'll lower it to 38 or 36 when I notice the center section of the tread wearing down a little faster than the rest. __________________ Formerly owned Met-Met. '07 Yaris LB 5-speed. A forum post should be like a skirt: Long enough to cover the subject but short enough to keep things interesting. "I don't have an anger problem. I have an idiot problem." -Hank Hill

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07-20-2010, 09:50 PM	#22
bronsin Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008 Location: nj Posts: 4,792	How many psi does it take to make a tire explode? I dont mean running it so it heats up and goes bang. I mean blowing it up like a balloon and POW!

07-22-2010, 12:49 AM	#31
Hershey Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009 Location: northeast Posts: 2,897	35 > 36 p.s.i.. Tried higher and it was choppier and felt those lousy roads / streets more and hear more rattles spring up . Few years ago we test drove a new '06 XB and it road like a brick on wheels . Could of used a styrofoam donut . Went back again to check tire pressure of the same XB and they were at 40+ p.s.i.. Let air out of each tire to about 35 p.s.i. and road much better . Ahhhhh relief . All in preference .

07-23-2010, 04:27 PM	#33
djct_watt Drives: 2010 NCP91 5spd Join Date: Nov 2009 Location: Thailand Posts: 449	^ back in 2002 I used to buy used CHP tires from the CHP training facility in Sacramento. They ran 205/65/R15 V rated pirelli's. It was awesome because they still had half their life on them and ran leas than a 1/4 of the price.

07-24-2010, 01:50 AM	#35
Thai_Dang View User's Garage Drives: 2010 Yaris 5-Door LB AT MM Join Date: Jun 2010 Location: Los Angeles Posts: 57	i bought mines new, and it came from the dealership pumped to 44 psi for the 15''. i didn't even know they can be pumped up to 60.

07-24-2010, 04:58 AM	#36
fluke_boy Drives: 2010 Yaris 3 dr hb Join Date: Nov 2009 Location: The Villages, FL Posts: 146	When I first got mine from the dealer I noticed the low tire pressure light was on. I pulled over and scanned the owners manual and found out what the low tire pressure light meant as I had no idea at first. Pumped it up to 32 and it has stayed that way ever since. I guess I'll try 35 - 36 for the 15" when I next gas up.