Cummings Diesel
We are looking at a "new to us" Itasca Horizon 40'. we have two to look at. Both have the same floor plan however one has the 400 hp the other has a 350. This would be our first diesel motorhome, is ...
Forum Discussion
Comparing diesel engine can be long story, so I would advise you to go to specific engine forum and read a lot.
General rule is that higher HP engine, but with step torque curve will make impression of lower acceleration than slightly lower HP, but with flat curve.
Other story as mentioned is engine chipping.
US manufacturers typically down-rate the engine for reliability.
Typical sample is that the same engine can be chipped for 300HP on tow truck, but 450 HP in fire truck.
Each program has its good and bad sides and it takes lot of homework to figure out what will be best for you.
General rule is that higher HP engine, but with step torque curve will make impression of lower acceleration than slightly lower HP, but with flat curve.
Other story as mentioned is engine chipping.
US manufacturers typically down-rate the engine for reliability.
Typical sample is that the same engine can be chipped for 300HP on tow truck, but 450 HP in fire truck.
Each program has its good and bad sides and it takes lot of homework to figure out what will be best for you.
