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Date:         Thu, 5 Aug 2010 16:05:44 -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: Was GoWesty 2wd springs! Now: Quick and dirty tire fittment
              trick
Comments: To: Don Hanson <dhanson928@GMAIL.COM>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

yeah but if the tires are that large they are sucking away a fair amount of engine power and fuel milage.

you know, you gain in some ways with much bigger tires, but you loose in some other ways too.

a very low tech way to measure or judge wind and rolling resistance is just by timing coast down times.

it would be fun to find an empty road and say, accelerate to 70, shut off, and meaasure time it takes to coast down to ..whatever, say 20 mph .. and do that with stock vanagon-rated narrowish tires .. then with your big fatties on 16 inch wheels.. should be a measuable difference, showing that the larger tires take more energy to make them 'go'or roll.

might handle better, and be better in crosswinds, and off road .. but they use up energy in cruise, more than stock smaller tires do, like up to 20 % worth is my guess, or at least 10 % worth.

scott www.turbovans.com

----- Original Message ----- From: "Don Hanson" <dhanson928@GMAIL.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Thursday, August 05, 2010 10:17 AM Subject: Was GoWesty 2wd springs! Now: Quick and dirty tire fittment trick

> On Thu, Aug 5, 2010 at 9:48 AM, Shawn Wright <vwdiesels@gmail.com> wrote: > >> BFG AT KO 215/70R16 on MSW type 15 16x6.5 ET38.. I >> heard a rub once on fender lip when entering a parking lot, but that's >> all. >> >> > Widely used (no pun intended) to cram extra fat rubber beneath racecar > bodies is this trick: If the tire is 'close' to fitting but you may get > the > occasional rub, many will use the 'baseball bat' fix. > .You insert some round long object like a bat, a pipe, whatever is thick > enough, between the tire and the body work and then roll the vehicle > forwards or backwards, letting the tire take the object around the wheel > arch. This "adjusts" or enhances the clearance between the tire and the > body. You should do this when the vehicle's finish is hot to perhaps > avoid > cracking the finish as the wheel arch is forced outwards...Many vehicles > have a 'thick' rolled under edge to fenders. These can also be > 'compressed', clamped into a tighter "hem" using padded clamps of some > type...again increasing clearance between body work and tire. > > Don Hanson


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