25 Mpg
Postmaster
Joined: Dec 2003
Posts: 2,833
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From: Honkytonkville
ok i was just saying my 01 only gets 15 on a good day and i would bet money that it weighs less than ANY complete truck from the 70's. and my truck is a V6 also. I wasn't comparing my 460 i was comparing the new truck. In all honesty, for me, I don't think my 460 gets "bad" mileage because the best fuel mileage I have EVER seen out of one of my trucks is the 01 at 15 or so.
Senior User
Joined: Nov 2004
Posts: 445
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From: Vancouver, Canada
When you consider how many of these great old F series trucks there are on the roads in N America, surely it's time for some brave engineering company (Advance Adaptors?) to offer an Aftermarket electric Hybrid drive. I was under my F250 a week ago and had forgotten how much space there is under there.
Way back in the 60s, I remember a kit that bolted a 25 hp electric motor right on the rear axle - on the pinion flange (no shortened drive shaft was required!). The idea was better acceleration, but now the idea would be improve fuel economy. I don't remember anything about the battery set up, but if you pulled the side gastank under the bed, you'd have plenty of space for a plug-in overnight set of Lithiums... If you could market the kit again for $1000-$2000, I bet alot of them would be sold. You might get 25+ mpg regularly then...
Sorry, I'm just a dreamer.
Way back in the 60s, I remember a kit that bolted a 25 hp electric motor right on the rear axle - on the pinion flange (no shortened drive shaft was required!). The idea was better acceleration, but now the idea would be improve fuel economy. I don't remember anything about the battery set up, but if you pulled the side gastank under the bed, you'd have plenty of space for a plug-in overnight set of Lithiums... If you could market the kit again for $1000-$2000, I bet alot of them would be sold. You might get 25+ mpg regularly then...
Sorry, I'm just a dreamer.
Fleet Owner
Joined: Sep 2005
Posts: 28,609
Likes: 18
From: Lake Tahoe, Nevada
Maybe you could make an alternator that replaced the center bearing. Have it switched so that it was activated during high vacuum periods.
I don't know how well an electric motor would hold up bouncing up and down with the drive axel. It would have to be pretty big to be effective. Maybe something that adapted to the output shaft would be more durable.
I don't know how well an electric motor would hold up bouncing up and down with the drive axel. It would have to be pretty big to be effective. Maybe something that adapted to the output shaft would be more durable.
Senior User
Joined: Nov 2004
Posts: 445
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From: Vancouver, Canada
Good point Bdox - attaching the electric motor to the Tcase would be drier also and not add to the rear axle unsprung weight. I'm not following your idea - do you mean low vacuum /almost closed throttle would activate the electric motor? I've wondered how and when you would turn it on/off.
Just the other day I was caught in another bloody traffic jamb - it really bothered me that there were hundreds of motors just sitting there idling for over 10 minutes. Of course setting up a hybrid drive as sophisticated as in a Prius or Escape is a very complicated business.... Certainly if you just wanted the electric system to push the truck straight forward slowly (no power steering needed), you could turn your main engine off and restart again when you got over 20mph... Hmmm...I'm not an engineer.
Just the other day I was caught in another bloody traffic jamb - it really bothered me that there were hundreds of motors just sitting there idling for over 10 minutes. Of course setting up a hybrid drive as sophisticated as in a Prius or Escape is a very complicated business.... Certainly if you just wanted the electric system to push the truck straight forward slowly (no power steering needed), you could turn your main engine off and restart again when you got over 20mph... Hmmm...I'm not an engineer.
Last edited by Mr. Fixit; Nov 11, 2006 at 04:34 PM.
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