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Old 09-07-2018, 01:13 PM   #14 (permalink)
Taylor95
Master EcoModder
 
Join Date: Aug 2018
Location: USA
Posts: 455

Jeep - '97 Jeep Cherokee Sport
90 day: 19.36 mpg (US)

Blueberry - '07 Toyota Camry SE
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Quote:
Originally Posted by Ecky View Post
Having more low end torque may or may not improve things. All else being equal, if you increase available torque at a given RPM, your driving load will be lower. Lower load means more vacuum, and more losses. Hopefully the increased power comes in part from efficiency improvements and not just from getting more air into the cylinders.

However, if it can help prevent a downshift, or allow shifting earlier, that's something.
Are you referring to pumping losses? Can you elaborate more on that?

What does RV stand for? I'll be sure to take a look.

In my specific situation a higher gear ratio won't help me. The 4.0 is most efficient from like 2200-2600 rpm. I would like to keep highway cruising within that range. Plus I am getting larger tires for off roading so I would like to get lower gears for that... Maybe 4.56:1.

Some people might think my goals are complete opposites but I just want the best of both worlds!
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