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Old 12-24-2007, 08:05 PM   #1
Tim
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Tyre pressure

What PSI do you guys run your stock 15" tyres at?

35 front, 33 rear?

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Old 12-24-2007, 09:52 PM   #2
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Re: Tyre pressure

Still experimenting with the EK9, currently running 30F/28R.
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Old 12-24-2007, 09:53 PM   #3
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Re: Tyre pressure

28 psi on front and rear
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Old 12-25-2007, 07:04 PM   #4
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Re: Tyre pressure

28-30front 33rear
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Old 12-26-2007, 12:34 AM   #5
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Re: Tyre pressure

30 all round
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Old 12-26-2007, 03:04 PM   #6
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Re: Tyre pressure

Few opinions! Surely you want less PSI in the front? I'll do some experimenting of my own, they're on 30 all round at the minute.
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Old 12-26-2007, 06:34 PM   #7
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Re: Tyre pressure

Quote:
Originally Posted by Sandwiches View Post
Few opinions! Surely you want less PSI in the front?
i agree, thats why i run mine at 28-30front 33rear. i have experimented and it does reduce under steer.
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Old 12-26-2007, 09:04 PM   #8
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Re: Tyre pressure

interesting choice using less at the front.


mine is F-34psi R-32psi
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Old 12-26-2007, 11:20 PM   #9
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Re: Tyre pressure

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Originally Posted by Tmus View Post
interesting choice using less at the front.


mine is F-34psi R-32psi
Actually after thinking about it... you'd want more grip on the rear wouldn't you, so lower PSI?

I'll leave it at 30F/30R for a few days and see how I get on. I'll try more PSI when the warmer months come around, less grease on the roads.
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Old 12-27-2007, 01:35 AM   #10
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Re: Tyre pressure

Quote:
Originally Posted by Sandwiches View Post
Actually after thinking about it... you'd want more grip on the rear wouldn't you, so lower PSI?
why would you want that? fwd cars like to understeer, by increasing front grip you understeer less.
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Old 12-27-2007, 06:00 AM   #11
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Re: Tyre pressure

what does the EK9 manual say with regards to tire pressure? i run 30/30 as well.
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Old 12-27-2007, 06:35 AM   #12
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Re: Tyre pressure

i believe the manual says 33 all around.
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Old 12-27-2007, 02:51 PM   #13
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Re: Tyre pressure

i duno about cars but mine have a plate on the drivers side door when you open it and it tells you the tyre pressure of the car and a few other things in japanese, im not exactly sure what the tire pressure is at the moment because i am out of the coutry.
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Old 12-27-2007, 03:15 PM   #14
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Re: Tyre pressure

Quote:
Originally Posted by blinx9900 View Post
why would you want that? fwd cars like to understeer, by increasing front grip you understeer less.
Well you can control what the fronts do with the steering wheel, you're screwed if the rears aren't gripping properly, especially on a corner at 80mph
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Old 12-28-2007, 01:24 AM   #15
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Re: Tyre pressure

Quote:
Originally Posted by Sandwiches View Post
Well you can control what the fronts do with the steering wheel, you're screwed if the rears aren't gripping properly, especially on a corner at 80mph
you can NOT steer with the steeringwheel if the car looses traction up front. trust me, ive been there, its scary

the rear sliding out however IS something you can counter steer out of or just mash the gas and it usually straightens out.
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