Just got my 205/75/15 Nokian WRG's on the Westy.

I'm in love.

On Thu, Jul 16, 2015 at 3:04 PM, Chris Szpejankowski <
szpejankowski@gmail.com> wrote:

> Play around with a one of those RPM calculators and see what your
> theoretical RPM drop would be with various size tires, then see if they
> fit, then tell us so we can copy you after you've tested it. :-)
>
> Wysłane z iPhone'a
>
> Dnia 15 lip 2015 o godz. 23:53 Loren Busch <starwagen@GMAIL.COM>
> napisał(a):
>
> > Okay, this wacky idea popped into my head while driving today.
> > I now have a 2.3L WBX with a lot more power in my '90 Westy with
> > automatic.  I could (but cannot possibly afford) go to a higher 3rd gear
> in
> > the auto tranny, adds say it would drop the RPM at cruising speed by 800
> > RPM.  And thus save some gas on long highway runs.
> > But what if I did this?  Go to larger tires on the rear?  Why only the
> > rear?  To keep the speedometer and odometer accurate.
> > Right now I am running 205/65 R 15 all around.  If I were to go to a tire
> > with larger circumference on the rear, although loosing a little power at
> > the ground I should drop my RPMs at cruise.
> > So, is there a fault in my logic?  And would my gain be so small as to
> not
> > be worth the effort?  BTW, I haven't tried to do the math on this one
> yet,
> > just thought I'd throw it out.
>