Slowjack Neutral Newbie January 29, 2004 Share January 29, 2004 psi = pounds per sq metres emm, bro i think it stands for pound per sq inch leh ↡ Advertisement Link to post Share on other sites More sharing options...
Super7 Turbocharged January 29, 2004 Share January 29, 2004 hmmmm...... just sidetrack abit:- for a parked car which is subjected to vibrations in the dark corner of a isolated carpark, which tyre pressure is good?? and I wondered???... whose car might that be... hahaha..... ..... tonite we bring torch light to find out... Link to post Share on other sites More sharing options...
Arkaneslayer Neutral Newbie January 29, 2004 Author Share January 29, 2004 210 kPa = 30 PSI see this link: http://www.onlineconversion.com/pressure.htm Link to post Share on other sites More sharing options...
Arkaneslayer Neutral Newbie January 29, 2004 Author Share January 29, 2004 (edited) "If it's only for city driving, just follow what's printed on the sticker by the side of your car door. " the whole point in me posting this thread in the 1st place is to understand the number at the side of the door ... how it is arrived, on what basis etc.. i think if we all followed blindly to what car manufacturers specify ... we wouldn't call ourselves car enthusiasts would we? why have a car forum at all if we "just follow what's printed on the sticker by the side of your car door. " i am sure one of the reasons why we all come together in this forum is to promote info exchange and a better/more in-depth understanding to the workings of our cars ... tyre pressures being one of them... cheers! Edited January 29, 2004 by Arkaneslayer Link to post Share on other sites More sharing options...
Zrun Neutral Newbie January 29, 2004 Share January 29, 2004 u r right... It is abit subjective. With stock tire size, your car's manual should tell u the optimum pressure. If size remains the same, the manufacturer recommended pressure should be the pressure for optimum shape. But, u cannot know for sure due to temperature. My tires recommended cold pressure is 32psi... So, during summer, I pump to 30-32, while in cold days, I pump to 32-34. Air pressure affect on wet handling http://www.tirerack.com/tires/tiretech/gen...vs_wetperf.html Link to post Share on other sites More sharing options...
E36UDM Neutral Newbie January 29, 2004 Share January 29, 2004 ur rite bro long time to see and speak. How have you been ? Link to post Share on other sites More sharing options...
E36UDM Neutral Newbie January 29, 2004 Share January 29, 2004 (edited) Taken from tyre manufacturer Dunlop. _____________________________________________________________________________[/url] Tyre care Tyres should be stored in a controlled environment with cool temperatures above 0 Edited January 29, 2004 by E36UDM Link to post Share on other sites More sharing options...
E36UDM Neutral Newbie January 29, 2004 Share January 29, 2004 Found something on the web regarding temperature's effect on tyre pressure. ______________________________________________________________________________ Question : An auto tyre is filled to a gauge pressure of 200 kPa on a day when the temperature of the tyre is 20 Link to post Share on other sites More sharing options...
Saaber Neutral Newbie January 29, 2004 Share January 29, 2004 good info, bro... Link to post Share on other sites More sharing options...
Arkaneslayer Neutral Newbie January 30, 2004 Author Share January 30, 2004 (edited) "Taken from tyre manufacturer Dunlop. " you forgot this pic. which again specifies tyre pressures ... but on what basis? Edited January 30, 2004 by Arkaneslayer Link to post Share on other sites More sharing options...
Soya Supersonic January 30, 2004 Share January 30, 2004 " ....Tyre pressures No firm rules exist re. Ideal tyre pressure - "ideal" varying with driver, car and circuit. Sufficient pressure must be used to avoid structural problems, "tuck" under or roll when cornering or turning on the rim. Personal preference adjustment is then necessary but pressures should not be reduced significantly from those recommended.... " that's what i've been saying all along. Link to post Share on other sites More sharing options...
E36UDM Neutral Newbie January 30, 2004 Share January 30, 2004 (edited) All I know is they calculate from bar and convert to psi. Anyway I hope you can find the answer for us too. There seems quite a few variables which will affect the result eg. rubber compound, road compound (friction ratio), tyre thickness, sort/hard sidewall, suspension setup (including toe and camber), weight pressure (load), temperature, wear rate of tyre, driving habits etc........ Maybe there's some empirical research on this or best is check with tyre manufacturer. Cheers Edited January 30, 2004 by E36UDM Link to post Share on other sites More sharing options...
E36UDM Neutral Newbie January 30, 2004 Share January 30, 2004 Yup saw tat bro Link to post Share on other sites More sharing options...
Schneider79 Clutched January 30, 2004 Share January 30, 2004 huh.... i drive a swift GTI 1.3 which is barely 900kg and i weight around 60kg... then the psi should be around 15-18... isn't the figure a bit ridiculous ? Link to post Share on other sites More sharing options...
King 1st Gear January 30, 2004 Share January 30, 2004 what car u driving,dun mind i asking Link to post Share on other sites More sharing options...
Saaber Neutral Newbie January 30, 2004 Share January 30, 2004 He driving WOWO T4 lah.. Link to post Share on other sites More sharing options...
King 1st Gear January 30, 2004 Share January 30, 2004 wow Link to post Share on other sites More sharing options...
Saaber Neutral Newbie January 30, 2004 Share January 30, 2004 yalor....bloody volvo driver... ↡ Advertisement Link to post Share on other sites More sharing options...
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