mileage improvements for v10
Thread Starter
Joined: Nov 2007
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From:
mileage improvements for v10
hi im new to the site and i recently purchased a 01 2500 8.0 and was wondering if there were any quick bolt on that actually work the way there supposed to. This has probably been asked a million times but i would really appreciate the input thanks
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Professional
Joined: Sep 2006
Posts: 185
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From: Agassiz BC
RE: mileage improvements for v10
The v10 responds well to a cold air intake, I think K&N is the only one that make one. Don'tdo the exhust unless you like the sound ofa tunerimport. Really if you need more power or feel that it is lacking:you may need to do a check up on the v10. Out of the box theseengines make a ton of power.
Champion
Joined: Aug 2005
Posts: 3,313
Likes: 8
RE: mileage improvements for v10
Notice that Dodge uses the same overdrive ratio in top gear (0.69)
for 3.9V6, 5.2V8, 5.9V8 and 8L V10 in Ram versions?
That is inherently wrong.
If you run the numbers
the 0.69 overdrive with 3.55 diff gears and 29.6 diameter tires
is 'optimum' for the 5.2V8 in a Ram
and wrong for everything else.
The V10's large displacement engine needs a 'taller' drivetrain ratio for when it is cruising on the highway with no or light load. With heavy loads it does not matter.
Notice the Viper V10 manual T56 trans has a 0.50 overdrive ratio?
But it is hard to find diff gears for the slightly odd D70 rear axle differential used in 2500 V10 Rams.
Dana did make some 3.06 diff gears for the D60 and D61 differentials so it is possible that some could exist for the D70.
About the only easy option is to install a GearVendors unit behind the V10 to get to a better spot on the V10s fuel economy graph. The GearVendors unit costs a lot up front, but years later you will probably be able to sell it used for 70% of what you originally paid for it.
Tire rolling resistance makes a big difference in MPG, at least a range of 1-2 mpg from best tires (commercial rib tread high psi)
to worst rolling tires (deep mudder tread at low psi air pressure)
It is probable that some brands of 19.5 commercial truck tires are superior to what you have now. Notice that the new cab/chassis Cummins Ram 6.7 with Aisin 6 speed automatic comes from the factory with 19.5 wheels and tires?
Aerodynamic improvements work on all vehicles to improve MPG,
and the faster you like to travel,
the more they save for you.
Much more info in this long read:
https://dodgeforum.com/m_447500/tm.htm
People who advise you a cold air intake will improve your MPG
just reveal to the whole world how little they understand how throttle blades work on a gasoline engine.
for 3.9V6, 5.2V8, 5.9V8 and 8L V10 in Ram versions?
That is inherently wrong.
If you run the numbers
the 0.69 overdrive with 3.55 diff gears and 29.6 diameter tires
is 'optimum' for the 5.2V8 in a Ram
and wrong for everything else.
The V10's large displacement engine needs a 'taller' drivetrain ratio for when it is cruising on the highway with no or light load. With heavy loads it does not matter.
Notice the Viper V10 manual T56 trans has a 0.50 overdrive ratio?
But it is hard to find diff gears for the slightly odd D70 rear axle differential used in 2500 V10 Rams.
Dana did make some 3.06 diff gears for the D60 and D61 differentials so it is possible that some could exist for the D70.
About the only easy option is to install a GearVendors unit behind the V10 to get to a better spot on the V10s fuel economy graph. The GearVendors unit costs a lot up front, but years later you will probably be able to sell it used for 70% of what you originally paid for it.
Tire rolling resistance makes a big difference in MPG, at least a range of 1-2 mpg from best tires (commercial rib tread high psi)
to worst rolling tires (deep mudder tread at low psi air pressure)
It is probable that some brands of 19.5 commercial truck tires are superior to what you have now. Notice that the new cab/chassis Cummins Ram 6.7 with Aisin 6 speed automatic comes from the factory with 19.5 wheels and tires?
Aerodynamic improvements work on all vehicles to improve MPG,
and the faster you like to travel,
the more they save for you.
Much more info in this long read:
https://dodgeforum.com/m_447500/tm.htm
People who advise you a cold air intake will improve your MPG
just reveal to the whole world how little they understand how throttle blades work on a gasoline engine.
Captain
Joined: Nov 2007
Posts: 671
Likes: 0
From:
RE: mileage improvements for v10
10/13 city/highway is pretty normal for the 488 inch motor. People that are real easy on the throttle do a little better, leadfoots and folks pulling all the time do worse. Bottom line, it's a big engine in a heavy truck. The 5.9's in the 2500's don't do much better (12/16 or so).
The only way to get decent fuel economy out of a 6,000 pound truck is diesel. Even with 40 year old technology, my 13,600 pound (empty) M35A2 Multifuel Turbodiesel gets 8/10. Dead serious. In the 1480 mile trip from ~Atlanta to ~Denver, I averaged 9.96 MPG.
The only way to get decent fuel economy out of a 6,000 pound truck is diesel. Even with 40 year old technology, my 13,600 pound (empty) M35A2 Multifuel Turbodiesel gets 8/10. Dead serious. In the 1480 mile trip from ~Atlanta to ~Denver, I averaged 9.96 MPG.