Last week i was adding pressure and a guy standing next to me tells me he thinks im putting too much and thats when it hits me that I dont know scientifically if im adding the right thing. So ive been feeling like im driving on overinflated tires and dont know the effects of that..... On Tue, Nov 17, 2009 at 1:56 PM, Josiah Mugambi <jmugambi@gmail.com> wrote:

The tyre pressure (and recommended size too) I believe is indicated somewhere on the drivers door partition.

I usually factor in the weight of the engine as well...

-- Josiah Mugambi Pablo Picasso<http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html> - "Computers are useless. They can only give you answers."

On Tue, Nov 17, 2009 at 1:49 PM, Lawrence Kago <lawrencekago@gmail.com>wrote:

...

Without any supportive argument,Tyre size 14(tubeless) i do 35 for rear and 30 for front..

Is that by any chance wrong..

On Tue, Nov 17, 2009 at 1:02 PM, aki <aki275@googlemail.com> wrote:

...

As it affect fuel consumption,performance, sluggishness, cornering etc. Important is the outer diameter. Someone wrote a nice calculator. HTHs you at some point. :-)

Which also bring me to this : From a tech point of view and using the correct tools, what should be the correct tyre pressure for a given tyre size, terrian and temperature ( as the air inside a tyrer will expand with heat ) ? I think 28 psi for regular is too standard and everyone here seems to go for it.

http://www.kouki.co.uk/utilities/visual-tyre-size-calculator

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-- Sent from my Voice Recognition Watch© -------------------------------------------------------------------- God is not an excuse for lack of discipline -------------------------------------------------------------------- Our greatest fear is not that we are inadequate,but that we are powerful beyond measure.It is our light, not our darkness, that frightens us.There is nothing enlightened about shrinking so that other people won't feel insecure around you.As we let our own light shine, we consciously give other people permission to do the same. As we are liberated from our fear,our presence automatically liberates others.

Kuria, Kindly give me a lead to any site with the manuals. Been looking for one for the toyotas and have never found any. regards, James Gichingiri Kuria wrote:

isn't the recommended tyre pressure in the car manual? even if you buy a second hand car you can get the manual online

2009/11/17 Joram Mwinamo <joram.mwinamo@gmail.com <mailto:joram.mwinamo@gmail.com>>

Last week i was adding pressure and a guy standing next to me tells me he thinks im putting too much and thats when it hits me that I dont know scientifically if im adding the right thing. So ive been feeling like im driving on overinflated tires and dont know the effects of that.....

On Tue, Nov 17, 2009 at 1:56 PM, Josiah Mugambi <jmugambi@gmail.com <mailto:jmugambi@gmail.com>> wrote:

The tyre pressure (and recommended size too) I believe is indicated somewhere on the drivers door partition.

I usually factor in the weight of the engine as well...

-- Josiah Mugambi Pablo Picasso <http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html> - "Computers are useless. They can only give you answers."

On Tue, Nov 17, 2009 at 1:49 PM, Lawrence Kago <lawrencekago@gmail.com <mailto:lawrencekago@gmail.com>> wrote:

Without any supportive argument,Tyre size 14(tubeless) i do 35 for rear and 30 for front..

Is that by any chance wrong..

On Tue, Nov 17, 2009 at 1:02 PM, aki <aki275@googlemail.com <mailto:aki275@googlemail.com>> wrote:

As it affect fuel consumption,performance, sluggishness, cornering etc. Important is the outer diameter. Someone wrote a nice calculator. HTHs you at some point. :-)

Which also bring me to this : From a tech point of view and using the correct tools, what should be the correct tyre pressure for a given tyre size, terrian and temperature ( as the air inside a tyrer will expand with heat ) ? I think 28 psi for regular is too standard and everyone here seems to go for it.

http://www.kouki.co.uk/utilities/visual-tyre-size-calculator

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-- Sent from my Voice Recognition Watch� -------------------------------------------------------------------- God is not an excuse for lack of discipline -------------------------------------------------------------------- Our greatest fear is not that we are inadequate,but that we are powerful beyond measure.It is our light, not our darkness, that frightens us.There is nothing enlightened about shrinking so that other people won't feel insecure around you.As we let our own light shine, we consciously give other people permission to do the same. As we are liberated from our fear,our presence automatically liberates others.

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The info on the door is some crazy codes....ama its me seeing wrongly? And yes the tires are different from the ones the car originally had when bought.... On Tue, Nov 17, 2009 at 2:53 PM, Steve Muchai <smuchai@gmail.com> wrote:

On Tue, Nov 17, 2009 at 2:11 PM, Joram Mwinamo <joram.mwinamo@gmail.com> wrote:

...

Last week i was adding pressure and a guy standing next to me tells me he thinks im putting too much and thats when it hits me that I dont know scientifically if im adding the right thing. So ive been feeling like im driving on overinflated tires and dont know the effects of that.....

On most cars, with the driver's door open you'll see a sticker on the center pillar. Gives you all supported combinations of rims and tyres supported, plus what pressure to run them at. Always follow this. Apart from fuel consumption and handling, deviation from this affects the wear and tear on your suspension.

BR, S

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-- Sent from my Voice Recognition Watch© -------------------------------------------------------------------- God is not an excuse for lack of discipline -------------------------------------------------------------------- Our greatest fear is not that we are inadequate,but that we are powerful beyond measure.It is our light, not our darkness, that frightens us.There is nothing enlightened about shrinking so that other people won't feel insecure around you.As we let our own light shine, we consciously give other people permission to do the same. As we are liberated from our fear,our presence automatically liberates others.

On Tue, Nov 17, 2009 at 3:10 PM, aki <aki275@googlemail.com> wrote:

@Steve, I think subaru seem to be the only sensible ones to give the correct sizes and pressure on that sticker. :-)

Yeah, they do....

Maybe you could do help out, if the sticker has the info. I've gotten a set of Oz wrc rims, 16inch and the profile that can fit is 195/45/16, keeping

AFAIK you should be able to do up to 215/55/16 if it's a Legacy. Impreza, I'm not sure. Will check for you and reply offlist. BR, S -- Sent from my socks®

On Tue, Nov 17, 2009 at 1:56 PM, Josiah Mugambi <jmugambi@gmail.com> wrote:

The tyre pressure (and recommended size too) I believe is indicated somewhere on the drivers door partition.

I usually factor in the weight of the engine as well...

-- Josiah Mugambi Pablo Picasso<http://www.brainyquote.com/quotes/authors/p/pablo_picasso.html> - "Computers are useless. They can only give you answers."

@Josiah, hehehe..! that is correct, the default sizes and pressure in on a tag sticker. :-) IMHO, The problems start when : a) Changing RIM size b) Changing Tyre Profile Size c) Smooth Ride versus Economy d) Economy versus safety e) Safety versus performance And pressure seems to be a crazy topic. How detailed do we get to achieve the correct pressure. Asking local tyre experts, opp tyre importers, has not helped much before. Also, petrol stations tend to give different PSI readings with their pressure facilities which makes it more difficult to know.