Forum Discussion
mike_mck
Oct 01, 2013Explorer
wnjj wrote:mike mck wrote:Hannibal wrote:
5500rpm with the 6.2 for long periods of time year over year or 3400rpm with the 7.3 PSD for long periods of time year over year...
Hannibal
In my case 2750 rpms at 70 mph. and yes it will and has run that way all day many times while pulling a load. It does not change going up a grade. Never had reason to run my 7.3 at 3400 rpms.
In other words, you're not even using all of the power your 7.3 has to offer. So a 6.2 with 25% less torque would need only 25% more rpm and would never go past 3450 (ignoring altitude losses).
Not at all what I am saying. Your example assumes both engines have the same power curve. They don't. 7.3 sweet spot is around the 2000 to 2500 rpm range with my 4.88 gears. 3400 rpm buys me nothing.
6.2 makes max power at 5500 RPMs.
You may draw any conclusion you choose.
For my needs, towing heavy with 6% grades the Diesel is the only way to go.
If the 6.2 meets your needs go for it.
As I have said before right tool for the right job.
About Travel Trailer Group
44,027 PostsLatest Activity: Mar 06, 2025