Question about engine/truck size
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Cargo Master
Joined: Nov 2010
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Question about engine/truck size
I was talking to a buddy last night. He has a nissan pickup, that is a couple years old. He said that his fi engine probably has near as much torque and power as my Ford 460, yet he gets double or triple the expected mpgs. So my question is all things un considered ( mounting, trans hookup, belts etc), if I threw a small 4 cylinder or 6 cylinder fi out of a newer computer controlled rig in my Ford would I see the same mpgs or even close? Second, likewise if I threw my 460 in say his pickup or a little geo metro could I see gigantic mpg increases?
I'm not really contemplating either, but I am kind of curious as to if the 460 is a pig by design, or if the weight of the truck has the biggest impact.
I am having trouble believing that something can have equal torque and hp and get so much more mpgs. I am operating under the assumption its a simple result of truck size.
I'm not really contemplating either, but I am kind of curious as to if the 460 is a pig by design, or if the weight of the truck has the biggest impact.
I am having trouble believing that something can have equal torque and hp and get so much more mpgs. I am operating under the assumption its a simple result of truck size.
Elder User
Joined: May 2010
Posts: 756
Likes: 1
From: central illinois
There are alot of factors. I would belive the Fuel delivery system being the biggest. Your 460 i would assume is carbed while the other truck is EFI. Probably a direct port type. Then you have the weight, aero dynamics, gearing and Transmision. The new autos are all computer controlled. In away I guess you are comparing apples to watermellons. lol By swapping either motor either way the results will change. So in otherwords putting a new motor/drive line in your truck may not get you the mpg it gets in the truck it's in now.
This space for rent...
Joined: Apr 2009
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From: In the garage
TBI is just an over-glorified carb. My K2500 gets around 12-16 mpg with a TBI 454. I'd do better if I ever got around to fixing the o2 wiring and curtailed my need to mash the gas pedal at every green light. Psh, but what fun would that be?
Fleet Owner
Joined: May 2009
Posts: 21,437
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From: Gilbert, PA
Your buddy w the nissan is an idiot.
the most tq a nissan pick up 4 cyl is 224 ft lbs qt and 134hp
your 460 is around 250 ft lbs tq and 225hp
His gets better milage because it is a LIGHTER, AERODYNAMIC, and a more EFFICENT running engine.
If you put that nissan 4cyl in your supercab 3/4 ton truck it would hardly move and most likely get worse fuel milage than your 460 does due to is is used to moving a 3k truck, not a 7k truck
the most tq a nissan pick up 4 cyl is 224 ft lbs qt and 134hp
your 460 is around 250 ft lbs tq and 225hp
His gets better milage because it is a LIGHTER, AERODYNAMIC, and a more EFFICENT running engine.
If you put that nissan 4cyl in your supercab 3/4 ton truck it would hardly move and most likely get worse fuel milage than your 460 does due to is is used to moving a 3k truck, not a 7k truck
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From: Martinsburg, WV
My friend has a 2010 Frontier 4.0 V6 4WD. It is rated from the factory to pull 7500 lbs with the tow package. It is at the max of the vehicle, but it is possible. Driving it, it is a torquey little *******. With the 4.0 in 2010 it is rated Power: 195 kW , 261 HP SAE @ 5,600 rpm; 281 ft lb , 381 Nm @ 4,000 rpm.
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Cargo Master
Joined: Nov 2010
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Your buddy w the nissan is an idiot.
the most tq a nissan pick up 4 cyl is 224 ft lbs qt and 134hp
your 460 is around 250 ft lbs tq and 225hp
His gets better milage because it is a LIGHTER, AERODYNAMIC, and a more EFFICENT running engine.
If you put that nissan 4cyl in your supercab 3/4 ton truck it would hardly move and most likely get worse fuel milage than your 460 does due to is is used to moving a 3k truck, not a 7k truck
the most tq a nissan pick up 4 cyl is 224 ft lbs qt and 134hp
your 460 is around 250 ft lbs tq and 225hp
His gets better milage because it is a LIGHTER, AERODYNAMIC, and a more EFFICENT running engine.
If you put that nissan 4cyl in your supercab 3/4 ton truck it would hardly move and most likely get worse fuel milage than your 460 does due to is is used to moving a 3k truck, not a 7k truck
FTE Legend
Joined: Jun 2004
Posts: 31,948
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From: Upstate NY
I was talking to a buddy last night. He has a nissan pickup, that is a couple years old. He said that his fi engine probably has near as much torque and power as my Ford 460, yet he gets double or triple the expected mpgs. So my question is all things un considered ( mounting, trans hookup, belts etc), if I threw a small 4 cylinder or 6 cylinder fi out of a newer computer controlled rig in my Ford would I see the same mpgs or even close? Second, likewise if I threw my 460 in say his pickup or a little geo metro could I see gigantic mpg increases?
I'm not really contemplating either, but I am kind of curious as to if the 460 is a pig by design, or if the weight of the truck has the biggest impact.
I am having trouble believing that something can have equal torque and hp and get so much more mpgs. I am operating under the assumption its a simple result of truck size.
I'm not really contemplating either, but I am kind of curious as to if the 460 is a pig by design, or if the weight of the truck has the biggest impact.
I am having trouble believing that something can have equal torque and hp and get so much more mpgs. I am operating under the assumption its a simple result of truck size.
Hook them up bumper to bumper and let him start first and see who has more stuff!
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
EFI DOHC 5.6L (339 cid) all aluminum 32 valve V8 / 317 HP @ 5,200 RPM / 385 ft. lbs torque @ 3,400 RPM / 5 speed A/T. Several different axle ratios are available, depends on with or w/o 4WD or w/a tow package.
While the Titan's V8 (the only engine offered) will run circles around the 460, its MPG will not be much better, and could be worse...it all depends on the driver.
Around town: 7-10 / On the highway: 14-18. These are "real world" figures, not what the EPA claims. And,...this info is 'straight from the horses mouth' because...I've owned three Titans.
Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
You are forgetting something. The Nissan pickup "that is a couple of years old" could be a Titan (introduced 2004).
EFI DOHC 5.6L (339 cid) all aluminum 32 valve V8 / 317 HP @ 5,200 RPM / 385 ft. lbs torque @ 3,400 RPM / 5 speed A/T. Several different axle ratios are available, depends on with or w/o 4WD or w/a tow package.
While the Titan's V8 (the only engine offered) will run circles around the 460, its MPG will not be much better, and could be worse...it all depends on the driver.
Around town: 7-10 / On the highway: 14-18. These are "real world" figures, not what the EPA claims. And,...this info is 'straight from the horses mouth' because...I've owned three Titans.
EFI DOHC 5.6L (339 cid) all aluminum 32 valve V8 / 317 HP @ 5,200 RPM / 385 ft. lbs torque @ 3,400 RPM / 5 speed A/T. Several different axle ratios are available, depends on with or w/o 4WD or w/a tow package.
While the Titan's V8 (the only engine offered) will run circles around the 460, its MPG will not be much better, and could be worse...it all depends on the driver.
Around town: 7-10 / On the highway: 14-18. These are "real world" figures, not what the EPA claims. And,...this info is 'straight from the horses mouth' because...I've owned three Titans.
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