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Date:         Tue, 11 Sep 2007 19:51:03 -0700
Reply-To:     Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject:      Re: Significant improvement:  Less wind deflection
Comments: To: Don Hanson <dhanson@GORGE.NET>
In-Reply-To:  <001301c7f4e6$4037c280$82b2d8d1@dhanson>
Content-Type: text/plain; charset="us-ascii"

Your tire's stiff sidewalls are working like they should - really contributing to stability, And at those kind of pressures ( measured cold ) having more pressure in the front instead of the rear probably doesn't matter, But there should always be a bit more in the rear tires, like 4 psi more.

See if your steady state corning isn't more stable with more pressure in the rear. ( less pressure in the rear contributes toward oversteer, which you don't want - that loose back end feeling - but as I said at such high pressure the affect might be less noticeable ) scott www.turbovans.com

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Don Hanson Sent: Tuesday, September 11, 2007 7:40 PM To: vanagon@GERRY.VANAGON.COM Subject: Significant improvment: Less wind deflection

I've deleted the digest in which someone suggested I might up my tire pressure to help with directional stability. So I can't thank you, by name, but thank you, it really helped. I went from about 39f/48r to 58f and 54 r...Since everyone's actual weighed numbers showed a slight front bias rather than a rear bias like VW seems to think with their "Door Jamb" recommended pressures..My tires, Nankangs with stiff sidewall and load rated correctly for our vans, they say on the sidewall "max load..XXXXlbs at 65psi, cold" So 58psi seemed reasonable. And, by golly, now the van, while it still 'feels' the big gusts, it isn't blown off course, it just kinda 'head-fakes' then resumes it's proper course. Cool. Thank you, mystery poster.. Don Hanson


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