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Old 01-18-2013, 06:30 PM   #15
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Join Date: Feb 2002
Location: Muncie, IN USA
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I have a 94 Gulfstream Scenic Cruiser with the 230 hp Cummins 5.9 B model and a 6 speed Allison. The engine is pure mechanical with no electronics at all. It's no speed demon but will get the job done. The standard engine in the Scenic Cruiser was a 190 hp 5.9 Cummins with a 4 speed trans, I don't recall exactly which trans it was though. The optional 230 hp engine is intercooled and uses the Allison 6 speed trans.
The Scenic Cruiser has a GVWR of 20000# which is what mine weighs at the CAT scales; according to one article I read the GCWR is 22000# which doesn't really leave much room for a toad.
I've only had this one since August but so far on the trips I've taken it's only getting 8.5 to 9 mpg. I'm thinking of having the injector pump checked out along with the injectors at a local diesel shop that specializes in these small engines.
There is also another potential problem with the 5.9 called the "Killer Dowel Pin" that I need to check out next spring, basically there is a dowel pin in the block in the timing gear area that could fall out and damage the gears.
If I would have known some of this before I bought it I probably would have passed on it even though it was stored inside all but about 1 year and looks very good.


2002 Holiday Rambler Presidential 5th wheel, 2002 Dodge 3500 dually Cummins
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Old 01-19-2013, 01:33 PM   #16
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Thor Owners Club
Fleetwood Owners Club
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Join Date: Dec 2012
Location: Squaw Valley, CA / Fairhope, AL
Posts: 311
Originally Posted by rlyons View Post
I just placed an order for the Banks Stinger system to replace my system from the y pipe back. Mine is leaking and rusting out. I may put the headers on later when my checkbook allows. I just installed the Banks transmission control module, new plugs and wires and advanced the timing a little. I hope it will show some improvement for now anyway.

The headers really help alot, Im also running the trans command, I have only the rear muffler on the banks set up, I removed the first one to get a little more tone to the exhaust. You can see on my signature I have done a little more than just the banks system.

The best way to describe just the power pack was like a 1/2 ton pick up, the before was like a V6, with the power pack it was like a V8 .... Only reason the heads got ported and polished is because the great people at camping world cracked the heads putting the headers on, so I paid the extra to have the machine shop do some real head work to it.

Also the ECM has a program on it, and a bigger dual bore throttle body

I know a diesel may get more MPG but I cant afford the cost of gas, let alone diesel thats $1 more a gallon.

None of the mods will probably ever pay in gas milage, but the ability to pass, climb mountians, merge at highway speeds is worth it to me.

With the right work the 460 can be a HP and TQ monster for a gasser.

Safe Travels

1995 Thor Residency 36', Chromolusion Paint, 460 Ford, Gale Banks Power Pack, Ported and Polished Heads, BBK Throttle Body, ECM Program & 1996 Coleman Shenandoah 25' Pop-Up
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Old 06-17-2013, 07:26 PM   #17
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Join Date: Dec 2012
Location: Ventura CA
Posts: 141
Originally Posted by Koop View Post
Don't get too bummed. At least you're savvy enough to recognize delam and corrosion prior to purchase. You'll find one, they're out there.
The information you all provided is not in vain I have my intended going to Redlands T & R to do a pre-purchase. Its a 1999 Diplomat with 275 with a Banks Power Kit which they are saying is now at 325 hp. Great information as usual The GVW is 29k on this unit and I plan to tow a CRV. Wish me luck

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