We just bought a Fleetwood diesel pusher motorhome on a Freighliner chasis.
It has a 350 horse Cummins and 6 speed Allison. It weights 31000 lbs dry.
Is it possible to chip this motor to 400 hp? without reliability?
I'm not trying to hot rod but I can appreciate a little more power.
what year is it???? I take it its a bigger cummins not the 5.9???
Formerly Diesel Rod.
A '97 F250 with 295K miles, 90 LED's and 5" stacks, among other things....
A '96 F250 Reg cab with 210K miles, Needs to go away. PM me. '86 359 Peterbilt SHORT HOOD. The ongoing "project" it aint pretty but its got a 425 air to air Cat motor .....13 speed Eaton. Corvette Dash, 17 gauges, 8" black stacks, 63" flat top---> 36" sitting here waiting for paint. 1.305 Million Miles.
I don't know what I am doing, I just know I don't have time to do it.
If it is a ISM (M11 if its older) it can go to 400hp, IF the allison torque rating will stand it. I would do some checking before you have cummins turn it up, also if its under warranty I would leave it alone.
2006 Chevy 2500HD Crew Cab SB 4x4 LBZ LT3. Driv Devilslide 20x9 wheels with 305-50-20 Cooper Zeon Tires, Magnaflow 4" Turbo Back Dual Exhaust, Edge Juice/Attitude
in his defense, if it's new and your not going to do any repairs yourself and it's under warranty, who cares what brand it is? Granted I would have at least looked but hey [img]/ubbthreads/images/graemlins/shrug.gif[/img]. Cat or Cummins your not going to go wrong with either. And yes 330 is the highest factory rating for the C7 (fire and RV only) but if you want more, TS Performance makes the MP-8 box for it.
I wish you hadn't said anything engine worries.
However the manual says it has a 6 year or 6000 hour warranty.
I hope I don't have to use it.
I won't be changing my own oil I expect either. The manual mentions several different capacity pans but another RVer with the same motor says 19 gallons. Good grief.
The cooling system won't have to be flushed according to the manual for 300,000 miles. I think that is what I read last night. Haven't read far enough yet to know if it's got a cooling system filter but suspect it has with such a high mileage before changing coolant.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.