Most of them were re-engined with Caterpillar
four stroke diesel engines that sounded like nothing else on the railroad. I'm
afraid you are out of luck on sound chips. They were not quiet. If you
have heard a D-7 Cat, you know how they sounded.
From: Nelson
Moyer <ku0a@mchsi.com>
To: CBQ@yahoogroups.com
Sent: Friday, March 16, 2012 5:06
PM
Subject: [CBQ] Doodlebug Motors?
I’d
like to put sound decoders in my doodlebugs, and the only sound file I’ve
found that’s supposed to be for a doodlebug is a recording of a Rolls
Royce 250 hp 8 cylinder motor from QSI. QSI doesn’t specify whether the
motor is gas or diesel, but I would guess it’s a gasoline motor.
The
doodlebugs I’m interested in modeling are 9529, 9816, 9841 and 9849. All
were built by Pullman-EMD with EMD 6 cylinder 275 hp engines. 9816, 9841 and
9849 were all rebuilt with diesel engines in the early 1050s, so either
gas-electric or diesel-electric sounds would be appropriate for circa 1950. My
questions are what diesel engines were used for the rebuilds (presumably EMD),
what horsepower were they, and how would they sound relative to a Rolls Royce
250 hp 8 cylinder motor? Unfortunately, it’s not possible to listen to
the QSI doodlebug sound file online, but you can listen to it if you download
the Q2Upgrade program and the sound file from the QSI Solutions web site, then
load the sound file into Q2Upgrade and play it. The sound file has 10 notches
that sound like a quiet diesel-electric in operation. Having never heard a Q
doodlebug, I have no idea how authentic the sounds are.