Looking at engine specs and transmission for fuel efficiency
Discussion in 'Ask An Owner Operator' started by Cdubb, Dec 28, 2021.
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shooter19802003, Oxbow and singlescrewshaker Thank this.
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77fib77, shooter19802003 and singlescrewshaker Thank this.
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Almost seems like 4.33 in the rear, or maybe the tach or speedo is off.?
Have you gps verified the speed at given rpm.?77fib77, shooter19802003 and Oxbow Thank this. -
Glad to hear that little engine is treating you well! I got some hazing going on on take off but she clears up at speed and idle. I’ll be plated for 90k gross to haul grain but I’m in the flat lands and my trips will be under 100 miles out (usually less than 50). I think it will be ok just wanted to try and give myself the best chance to get the best mileage I can of course.shooter19802003 and singlescrewshaker Thank this. -
Spec sheet trans is a RTX14708LLshooter19802003, Oxbow and singlescrewshaker Thank this. -
My normal loadshooter19802003, Cdubb and singlescrewshaker Thank this. -
Ok I have a theory of what’s going on but I need to hear from someone with experience on the 8LL. My splitter on the side of the shifter is stuck, from the videos I’ve watched what would be low in a 13 speed is actually high on a 8LL. So my understanding is pulled back is high, forward is low mine is stuck back. I guess my new question is can you use that low low split in every gear? And what is the ratio in low low? Can’t seem to see drive rations for that low split.
Would definitely make sense that if its split into low range my rpms would be way up. Ran a 15 speed today and had her in high gear but split into low, rpms were similar at 60. Was gonna fix that but wasn’t very high priority since I don’t think I’ll need low low maybe ever.Last edited: Dec 30, 2021
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I had one back in the Day. Though Mine was set @ 365Hp & I had an 18speed.
Definitely one of the Better Trucks I've owned over the years..
Speed_Drums, Tug Toy and Cdubb Thank this. -
Since you had some wheeltime with one let me ask you this, we’re you able to smoothly float the gears downshifting? I haven’t had much seat time in mine so maybe that’s what I’m feeling but it’s a little rough getting it out of gear at the shift point. Read elsewhere a lot of guys will double clutch downshifting on them. Did you do that? -
This Feature makes it VERY easy to Float Downshifts... I still use the Clutch on Compound Shift though.. As It's a bit easier on the range change Syncro..Tug Toy Thanks this.
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