Diesel Pusher RV - Dodge Cummins Diesel Forum
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

 
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post #1 of 4 (permalink) Old 09-10-2019, 09:05 PM Thread Starter
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Diesel Pusher RV

Question for the group I'm looking at several Class A Motorhomes many have the 5.9 cummins. Do these engines respond to upgrades like the pickup's do?

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post #2 of 4 (permalink) Old 09-10-2019, 10:36 PM
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I’m pretty positive you can modify these just fine. They aren’t exactly the same, meaning they are de tuned a little and some have different fuel system/injectors etc. Old man that rides with us has had several and added power to all of them. His most recent was actually deleted and tune added. Big difference in power. But you should be able to do some mods to pull a little more out of it. Are any of them the older mechanical style? Or all newer electronic? Reason I ask is because the older ones I know for a fact you can modify the pumps and stuff.

2018 3500 CC LB 4x4 DRW Sport Laramie 4.10 Aisin

2018 2500 Mega 4x4 68RFE 6.5 37s
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post #3 of 4 (permalink) Old 09-11-2019, 01:05 AM
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Ive been looking pretty heavy at a diesel pusher as well.
I absolutely would not go with a pickup truck diesel in a classA.
Im looking pretty heavy at some Holiday Rambler classA's with Cat engines, freightliner chassis, and 6spd Alison auto.
Few key factors for me....
1 pc metal roof
Riveted aluminum exterior vs laminated fiberglass(strong chance of delam)
Slide out awnings are a must (slides cant leak, if water never gets on them in the first place)
Obviously a commercial grade chassis, like the Freightliner chassis
And atleast a 6spd auto trans.

2001 2500 5spd, 4" straight pipe, fass titanium series, mach1.6 injectors, CAI, adrenaline, southbend dual-friction, 2011 fto wheels
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post #4 of 4 (permalink) Old 09-11-2019, 02:07 AM
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Pusher is on my wish list. If looking at a Cummins, I'd look at a 8.3 from what I've read. But yes you can bump up the power more easily on the Cummins than the Cat.

01 Sport 4x, Quad w/ V2, Smarty, PhatShaft 62/65/14, 4" turbo back, FASS, Amsoil, 100hp DFI's, TunnelRam, H2 alloys, 5" lift, HD steering, Posi-Lok, Inglewood Trans w/ billet parts.
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