Date:         Mon, 24 Aug 2009 17:48:38 -0700
Reply-To:     Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject:      Re: Kumho 857 Tire Pressure?
Comments: To: "Mr.mds" <mds_1976@HOTMAIL.COM>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

If they're like 184 R 14 C's used on vanagons around 83 to 85 or so.
their tire pressure tag in the front door says 39 front, 48 rear, cold.
I played with that on similar load-rated tires, , and
thought 39 cold was a bit high, and am running I think, 33 front, 44 rear,
measured cold, and like that ride and handling feel - quite well actually. I
can through my van into a corner with quite predictable and neutral
handling.

In any case, it's the front-to-rear tire pressure relationship that
determines handling feel while corning.
You want to be between boat-like understeer on one end of the scale, and
'loose' feeling oversteer on the other end of the scale.
Making sure the rear contributes more stability than the front does,  helps
to achieve that.  Working with just tire pressure   ( and not wheel rim
widths, or tire sizes ) is all you have to work with there.
Around 6 to 8 psi more in the rear  than the fronts, is what I recommend.
( I realize my example above  is 11 psi more in the rear ) Try different
pressures and different front/rear relationships.
Just never exceed the max pressure listed on the side of the tire -  I find
those pressure to always be higher than I'd ever run normally.   In any
case, you want 'more' in the rear - more stability, and tire pressure is
what you have to tune that with, which is reflected in the recommended tire
pressure on most vanagons tire sticker in the driver's foot well area.
long enuf !
----- Original Message -----
From: "Mr.mds" <mds_1976@HOTMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, August 24, 2009 5:27 PM
Subject: Kumho 857 Tire Pressure?


Hello everyone.

Just wondering if anyone has used or uses Kumho 857's on there vans? I have
a 81 non camper Huge Sunroof edition!!
I have a set of Kumho 857 in a  LT195 R14 can anyone recommend a good tire
pressure to set these at?

Thanks for your time.

MS

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