On 8/19/05, Chris Renz <aircooledchris@eucasafari.vendioweb.com> wrote:
> What is the difference between 27X8.5QR14 and 185/R/14 tire sizes?
> 
> Ive seen both mentioned as the tires ppl use for their vans and there are a
> few more options in the 27X8.5QR14 range that I like when searching for
> those VS the standard 185/R/14
> 
> Is there any difference?
> 
> thanks!

The 27x8.5x14 tire is ~1 inch taller (1/2 inch more ground clearance).
 It will cause roughly 5% speedometer / odometer error (reading lower)
due to the difference in tire sizes.  It will also have the effect of
raising the gear ratio, slowing the vans acceleration rate down and
causing you to have to down shift sooner on hills.

27x8.5x14 = 26.7" high = 780 Revolutions Per Mile

185R14 = 25.7" high = 810 Revolutions Per Mile

-- 
Don in Reidsville, NC
1986 Kawasaki Concours
1988 Vanagon GL (Sylvia)
"I reject your reality and substitute my own." - Adam Savage