6" SS EXHAUST STACK

[Tom McCarthy]

Pete, I do not think our Jacobs brake is exhaust based at all. It is
an engine brake that uses the compression of the DD60 to "brake." It
shut down fuel to certain cylinders at the upstroke that normally is
pushed by combustion. This is as far out on the limb with mechanics
that I am willing to go. This is based on an FMCA DD seminar on DD
60 Jacobs braking.

TTS McCarthy
Poway, CA

--- In WanderlodgeForum@yahoogroups.com, Pete Masterson
wrote:
>
> Having recently replaced my muffler (at great expense) -- had I to
do
> it over again, I'd have switched over to a 5" system from turbo to
> stack. As others have stated, it's 5" at the turbo outlet and the
> standard in the heavy truck industry is 5".
>
> The only performance difference I notice (between the old blown
out
> muffler and the new one) is that the exhaust-type Jake brake seems
to
> be slightly less effective.
>
> Pete Masterson
> '95 Blue Bird Wanderlodge WBDA 42
> aeonix1@...
> On the road at Hohenwald, TN (Natchez Trace Parkway)
>
>
>
> On Oct 31, 2008, at 11:24 PM, Kurt Horvath wrote:
> > <snip>
> > For the last four weeks I have queried Detroit Diesel, Custom
Exhaust
> > Fabricators, Several OEM Exhaust Mfg.'s, Marine Exhaust
Engineers &
> > Fabricators, My BB Guru, and anyone else that would lend an ear,
and
> > no one has expressed any apprehension or regard in the respect to
a
> > 5" exhaust system. In fact all parties expressed their surprise in
> > respect as to why the system would change size at the muffler.
> >
> > Several owners have modified their systems to 5" from end to end,
and
> > have seen no change in performance. Positive or negative, In
general
> > it was just a matter of convenience in acquiring parts, I won't
get
> > into that. That has recently been beaten to death at the expense
of
> > all parties involved
> >
>