|
For the type of driving your doing I doubt you would ever break even on the difference in cost between a TH350 and a 700. You will almost never see OD and locked converter and that's where a 700 makes it's MPG gains.
It is true...engines have a sweet spot. My 454 in my 88 Burb it likes to cruise at 2500 RPM (63mph) and it doesn not care what's behind it it can hold that RPM all day. I just came back from Macon with 5600lb on the hitch and that motor never broke a sweat. I was getting about 10.2 mpg. Normal city driving it gets about 9.2. That's running mixed hwy running 70-75 mph at around 2900rpm. Yet if I ran 2500 RPM I would probably pick up 2 mpg. Best I have ever got out of that truck was 11.5 and that was Cruise control on about 65 for 300 miles non stop truck empty.
You can pick up more MPG with driving habbit changes for your type of drives.
__________________
Grim-Reaper
70 Pontiac LeMans Sport Convertible, worlds longest resto in progress
Looking for 71-72 2wd Blazer or Jimmy Project
|