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Yokohama C-drive


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#41
vr2turbo

Posted 14 April 2009 - 10:51 AM

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QUOTE (michael80 @ Apr 13 2009, 03:01 PM) <{POST_SNAPBACK}>
well recommended pressure... sure your vios got said mah...
for my PP2 i always pump 32~34 PSI lo... depends...
but recommended pressure is around 31~32 PSI... so i put a bit more...
recommended by Michelin that if you drive your car more than 2km already you have to put 2~4 PSI higher...

Car Recommended air pressure are for the standard tyres. Once tyres are changed can follow your own settings, depending on the tyres.
Rule of thumb is between 28psi to 36psi. Below 28psi can something lead to under inflation and over 36psi becomes over inflation and will be very bumpy.
I am surprise you use up to 34psi for PP2 as their sidewall are quite firm, but you know better as that is your preferred setting.

General info:-
Tyres when heated up will increase by 2 to 4psi (depending on the heat and distance traveled)
For Outstation and highway travel, 2psi increase in air pressure is recommended to reduce tyre flex.

rdgs,

#42
michael80

Posted 14 April 2009 - 11:39 AM

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yes... i put 34 when i drive more than 2km and it feels good handling...
of course if your car suspension is hard you cannot do that...
my Vios is stock item... smile.gif and it feels ok...

#43
vr2turbo

Posted 14 April 2009 - 01:37 PM

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QUOTE (michael80 @ Apr 14 2009, 11:39 AM) <{POST_SNAPBACK}>
yes... i put 34 when i drive more than 2km and it feels good handling...
of course if your car suspension is hard you cannot do that...
my Vios is stock item... smile.gif and it feels ok...

That is what I meaning personal preferred setting.
For my 215/45/R17, I am having 34psi front and 33psi rears....

rdgs,

#44
michael80

Posted 14 April 2009 - 05:42 PM

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QUOTE (vr2turbo @ Apr 14 2009, 01:37 PM) <{POST_SNAPBACK}>
That is what I meaning personal preferred setting.
For my 215/45/R17, I am having 34psi front and 33psi rears....

rdgs,



tat is a lot harder then mine...
i used to 34psi front and 32 psi rear...
but you have lower profile tyre...

#45
vr2turbo

Posted 14 April 2009 - 05:57 PM

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QUOTE (michael80 @ Apr 14 2009, 05:42 PM) <{POST_SNAPBACK}>
tat is a lot harder then mine...
i used to 34psi front and 32 psi rear...
but you have lower profile tyre...

Yup, the lower the profile the more the air pressure......



#46
ModMyVi

Posted 14 April 2009 - 06:05 PM

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vr2, what are your profile? is it 45?

mine is at 40, what's your advice?

#47
vr2turbo

Posted 15 April 2009 - 10:27 AM

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QUOTE (ModMyVi @ Apr 14 2009, 06:05 PM) <{POST_SNAPBACK}>
vr2, what are your profile? is it 45?

mine is at 40, what's your advice?

Mine are 45 series.
The more air pressure, comfort is loss, stability/handling is gained and better protection for the rims as yours are 40 series.
If you need more comfort, test it yourself between the range from 32 to 36 should be enough as more than 36 will be like rock for 40 series. Below 32 may not be good for your rims....

rdgs,

#48
vr2turbro

Posted 16 April 2009 - 03:33 PM

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QUOTE (vr2turbo @ Apr 14 2009, 05:57 PM) <{POST_SNAPBACK}>
Yup, the lower the profile the more the air pressure......




More bumpy for sure. If lower, can scrap car bottom.
Time for BBQ!!

Must be cheap & good!!

#49
vr2turbo

Posted 16 April 2009 - 05:43 PM

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QUOTE (michael80 @ Apr 14 2009, 05:42 PM) <{POST_SNAPBACK}>
tat is a lot harder then mine...
i used to 34psi front and 32 psi rear...
but you have lower profile tyre...

But yours are only 55 series on 15", right?
34psi is quite a lot.....

Rdgs,

#50
michael80

Posted 16 April 2009 - 06:03 PM

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yea... but at least the cornering and responce is better... smile.gif