Performance of a PT36 vs a PT38

[Jeff Miller]

The '91 is taller, wider, and heavier, and although it is a bit of a
SWAG I'm betting that the more square corners increase the Cg/drag.
All of this might be contributing to your increased fuel burn.

With the 8V over the 6V in the same coach you should be able to pull
a taller final-drive and keep the engine higher in the BSFE
curve, ... provided you aren't using that extra power in the hills or
driving faster.

- Jeff Miller
in Holland, MI


--- In WanderlodgeForum@yahoogroups.com, "mbulriss" <mbulriss@...>
wrote:
>
> Ron,
>
> Not that anyone buys these things based on fuel economy, but I am
> having a hard time believing you got the same mileage with the 6V as
> the 8V. I know in my case I generally got 6-8mpg with the 83 PT40,
> depending on how tight the nut behind the wheel was wound, and after
> two fill-ups with the 91 WB40 I have gotten 4.6 and 4.7 .... NOT
> impressed! Both of them are 40s, both had 5 spd tranny, 91 is
> heavier, but..... definitely not the same in miles per gallons.
>
> Mike Bulriss
> 1983 PT40 "Stagecoach" - Going to a new home on Sunday!!
> 1991 WB40 "Texas Minivan" - Now I can have time to work on this one!
> San Antonio, TX
>
>
>
>
> --- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002"
> wrote:
> >
> > Tom: You won't save a dime in fuel economy with the 6V92 over the
> > 8V92. As a matter of fact, my 8V electgronic is more economical
than
> > my previous 6V mechanical. As long as you drive in flat country,
it
> > probably doesn't make any difference.
> >
> > R.E. (Ron) Marabito, Dallas, TX 92WB40
> >
> > --- In WanderlodgeForum@yahoogroups.com, Tom Warner
wrote:
> > >
> > > Ron there might be other considerations but then maybe you
considered
> > > them and/or had information that I did not see. For instance,
> > > unless I absolutely knew what the maintenance history of both
coaches
> > > were and the price that will be finally paid for each including
taxes
> > > and registration fees if there are some ( realizing they had a
max
> > > budget of $50-75K) that would leave somewhere in the range of
> > > $60,000 not including taxes.
> > >
> > > I would go with the coach that fit in that budget IF I knew :
> > >
> > > 1. The tires were all servicable and had a DOT date of less
then 5
> > > years and had some assurance that they had not been abused by
running
> > > over/or under inflated or run over curbs. .
> > >
> > > 2. You had service records for the coach to ensure it was
regularly
> > > maintained and not sit for long periods of time.
> > >
> > > 3. You consider the fuel mileage. The PT36 with a 6V92 will
get
> > > better mileage then the PT38 with a 8V92. Either one I would
have
> > > inspected by a reputable mechanice to make sure there are no
problems
> > > with the engines.
> > >
> > > 4. And lastly use the Vintage birds checklist and go over every
> > > single item in the coach. That checklist could very well help
you get
> > > a lower price then the owner is willing to go to knowing that
there
> > > are no problems. If everything checks out however you will feel
> > > better about the price you do have to pay.
> > >
> > > Good luck in which ever one you buy.
> > >
> > > Tom Warner
> > > 1982 FC35
> > > Vernon Center,NY
> > >
> > >
> > > At 06:03 PM 2/2/2006, you wrote:
> > > >I've run coaches with both. I would not consider the 6V92
again. On
> > > >a small coach, it might be fine, but between the two coaches,
> there is
> > > >not a lot of weight difference, thus go with the 8V92 for
> performance.
> > > >You won't be sorry, unless other considerations are more
important.
> > > >
> > > >R.E. (Ron) Marabito, Dallas, TX 92WB40
> > > >Forum Moderator
> > > >
> > > >
> > > >--- In WanderlodgeForum@yahoogroups.com, "buddyballs79"

> > > >wrote:
> > > > >
> > > > > Hello and thanks in advance for the replies.
> > > > >
> > > > >
> > > > > We're looking at two coaches right now, one is an 89 PT 36
with
> > the 6V
> > > > > 330 Detroit and the other is an 87 PT38 with the 8V 475hp
Detroit.
> > > > > Both are the silver editions. The PT 36 has 135k and the PT
> 38 has
> > > > > 100k. Since they are both a considerable distance away we
were
> > > > > wondering if anybody has had any experience with these
coaches.
> > How is
> > > > > the performance of the 36 with the 6V Detroit vs the 38 with
> the 8V?
> > > > > Any pros or cons for one or the other? It will be our first
> diesel
> > > > > motorhome and we love the look of the older Bluebirds. Our
> > budget is
> > > > > $50k to $75k max.
> > > > >
> > > > > Thanks again for the help.
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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