Posted by Jon Hagen on July 02, 2013 at 10:30:22 from (69.26.17.61):
In Reply to: fuel efficientcy posted by jerry 4 on July 02, 2013 at 09:47:37:
Kind of depends on the engines part load efficiency and how much power is consumed by the transmission / driveline. In example, I used two larger tractors to pull a 21 ft windrower, an implement that I guess consumes about 15-20 HP. The one was a 140 HP 4450 JD with powershift transmission. The other was a 170 HP IH 3788 with manual transmission.
I have read and been told that the JD 15 spd powershift consumes about 15 more HP than the same tractor with a manual transmission.
Pulling the light load of that PTO driven winrower, the powershift JD consumed about twice the fuel of the manual transmission IH.
There may be some light load efficiency difference between the JD 466 and the IH 466 engines, but I suspect the largest difference was the JD powershift transmission was consuming about as much power as was being used to power the implement, so it's engine had to burn more fuel to do the same job.
With both of these tractors pulling a full load, the fuel consumption difference would not have been as great, as the 15 HP consumed by the powershift would have been a much smaller portion of the total power generated.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
... [Read Article]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
