Question for someone
I changed my wheels to stock 15 " rims tire size 185/55/r15
what PSI should they be at ? 30 ? 31? 35?
Thanks
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Question for someone
I changed my wheels to stock 15 " rims tire size 185/55/r15
what PSI should they be at ? 30 ? 31? 35?
Thanks
Whatever the door sticker says. Doesn't matter what the tire size is, the pressure should be the same.
I do 36 front, 34 rear... just whatever works for you
That's what I run mine at and find that the tires wear much more evenly that way.Quote:
Originally Posted by subachad
does that not hurt your gas mileage?
what about safety if you hit a bump in the road and your tire can burst....
i just know that from when i would pump up my bike tires to high and the first curb would make them burst...
just a thought
i was running 44 -50 lbs for autoX...
i dont think a dot approved tire is going to burst from a couple lbs.. and the same tire may be suited for a higher load with a little more pressure.
In the winter I keep all 4 at the recommended 30 psi or slightly less.
In Summer I run the same as subachad and ontarian_frog.
I think harder wheels should help gas mileage because you coast longer and farther.
The idea for lower psi in the winter is slightly less wheel spin while starting off on snow and ice which in theory should also help with the gas mileage.
The stock tires are rated for up to 40+ psi and the Aveo is a light car, I think there is a lot of room to experiment and see what you like without having to worrying about safety.
ROTFL I haven't laughed that hard in a while. You're actually comparing a steel-belted car tire to a bike tube? wow... just wow...Quote:
Originally Posted by gsills
good for you im glad i can help you.
Not all tires are steel beltedQuote:
Originally Posted by mtlswift
Go for even tire wear, if it's wearing in the middle, you have too much pressure, wearing on the edges, it doesn't have enough. Wearing some other way, see a tire wear chart.
The front need to be a little more since the car is so poorly balanced and most of the weight sits over the front. Also even at 36psi, after 20 minutes of lapping The hottest tire was just over 40.
do what it says in you manual or on the side of the tire. they put those numbers there for a reason.
But then people couldn't pretend to be NASCAR crew chiefs and adjust tire pressures because they think it actually does something significant. With my 17's on, you can't tell the difference between 25 PSI and 40 PSI, the sidewall just doesn't flex.Quote:
Originally Posted by mikedudley17
mikedudley17 wrote:
do what it says in you manual or on the side of the tire. they put those numbers there for a reason.
The number on my door is saying 30 psi for 14 inch tires not my new 15 inch rims
The manual does not say what tire pressure to use it says to refer to your door.
so im going to run 34 psi on the front and 33 psi on the back as my 14 inch tires did wear really quick on the front when i left it at 30 psi
It does make a difference, why do you think so many people mess with tire pressures? You are comparing a tire on a 17" wheel which has MUCH less sidewall than a tire on a 15" wheel. And if you can't tell the difference between 25psi and 40psi, you are just not at all in tune with your car. That is a very noticeable difference... Or try this, put all your tires at 40 except for one of the back ones. Now take some fast hard turns in a safe place, you will spin out when the low tire is on the outside edge of the turn. For example, back right is low, you will spin making left turns.Quote:
Originally Posted by 07_aveo
^^^ all that, plus if you are 5lbs below what is recommended on the door, you will also see a big drop in fuel economy..
Lets put this into perspective for a second: its an aveo, unless it is highly tuned and u plan on track days with ur tires which would then require adjusting the day of, putting the tire pressure at the reccomended pressure on the side of the tire will not make much difference for DD. I assume that is what the OP will be doing is DD so in this case, please follow your tires directions and everybody stop making this so complex.
Simple question, simple answer.Quote:
Originally Posted by gsills
PS: Look at the side of the tire for your answer. This is what I said in the first place.
just like all the race cars, and an aveo, the tires are the only thing that touch the ground. therefore even though it is just an aveo, tires make a lot of difference in handling, fuel economy and performance. don't believe it if you dont want to. but if you have doubts and want to see real world do the one "flat" tire thing a few posts back..
also, put your tires at the recommended (i think its like 32 or 34, forget) and drive around for a tank and record the mileage, and difference in tread wear. then repeat with the pressure at 40, (this will give better fuel economy, but tread wear in the middle of the tire which may not be noticeable in one tank of gas. Then repeat again at 25 lbs, and you will not only notice a drop in fuel economy, but also lack of control, performance, and the tires will wear on both outside edges.
Truth, but whatever is reccomended on the side of the tire should be sufficient enough for DD and is what is best as prescribed by the manufacturer of the tire as for like you said, tread wear.Quote:
Originally Posted by petrified.rabbit
i dont see suggested pressure on the side wall just max pressure
o well
then put it at that or a couple of pounds under.
I've been running my original tires (185/60R14) at 40 psi and at 30000 miles they're wearing perfectly even.
I have 205/40/R17 Cooper Zeon ZPT's on my 09'. I think I've got about 2500 miles on them total running at 46-48lbs and I've noticed hardly any wear at all so far. In the winter I run about 35lbs for better traction. I do lose a little bit of fuel economy with the pressure up so high, but I've noticed my acceleration is sharper, smoother and more consistant. It handles much better around the turns too. They're rated for 50lb max.