Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Click Here to Login
View Single Post
Old 10-31-2019, 11:32 PM   #30
Chance
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 6,187
THOR #2121
Quote:
Originally Posted by The_Breeze View Post
I have no idea why they would consider a 4:56 on a cutaway chassis unless the rig is constantly crawling through high mountain passes. 4:11 seems a little bit much too. Wouldn't 3:73 suffice with a lower tranny gear you could employ?

That’s a good question. Specifications I’ve seen so far show the new 7.3L V8 in a SuperDuty can have higher GCWR than required for a small Class B+ or Class C even when equipped with 3.73 gears, so I’d guess it might work OK. On the other hand taller and taller gearing has diminishing returns on improving fuel economy, so going from 4.56 to 4.10 should make greater difference than from 4.10 to 3.73.

For smaller aerodynamic Class B+, this engine may just be too large for optimum fuel economy. I’d like to see a small B+ that can deliver 12 MPG consistently (on average), but I’m not sure whether this 7.3L can do it. We’ll see before long.
__________________
Chance is offline   Reply With Quote
 
» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 10:16 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.