Mileage with a Motor Home

[Shannen Durphey]

Bernie Jacobsen wrote:

> >What transmission is in the motor home?
>
> TH400  Rebuilt by Art Carr
>
> >
> >Can you add one of the overdrive units that goes after the transmission or
> >on the rear axle?
>
> 4.10 on the rear.   I'm considering a Doug Nash (US Gear) OD unit for the
> tranny tail section, .67 OD, I think.  I am also considering a "close spaced
> torque converter" (less clearence between the blade sets... lower stall[?])
>
> I am planning on using coated headers with 1.75" X 43" (!) primaries.  This
> peaks my torque at about 1800 RPM.  With the OD,  that's about where my
> hiway cruising speed should be.
>

Not to but in, but there is the switch pitch THM400 used in early buicks and
some olds.  Has 2 stall speeds electrically controlled.  Conversion requires
special pump and converter.

Shannen

> ^Bernie
>
> >
> >David
> >-----Original Message-----
> >From: Dave Balfour <balfour at bushnell.net>
> >To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> >Date: Friday, March 27, 1998 9:56 PM
> >Subject: Re: Mileage with a Motor Home
> >