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More hp or an extra gear?

chloe_s_ranch
Explorer
Explorer
I read where the 2016 Ford F53 chassis changed to a 6 speed transmission, but for emissions regs. dropped the horsepower rating down to 320 from 362 on the 2015 chassis. So if you were buying a gas class A today would you rather have the 5 speed with more hp, or the new 6 speed with 320 hp?(And you can't answer that you want 362 hp with 6 speeds?)
21 REPLIES 21

donfrump
Explorer
Explorer
chloe's ranch wrote:
The 5 speed class A has 457 lbs of torque and 362 hp.


not in 2015 or 2016 last one 2014

2015 Specifications Stripped Chassis F53 Class A Motorhome
6.8L 3-Valve EFI Tritonยฎ V10 Engine
Power: 305 hp and 420 lbs/ft of torque
Drivetrain: 5-speed TorqShiftยฎ Automatic Transmission with Tow/Haul Mode

wolfe10
Explorer
Explorer
If comparing HP and/or Torque be sure to check at what RPM it is making that amount.

Said another way, particularly for a heavy vehicle, 320 HP at 1500 less RPM would likely be more drivable than 362 HP at "screaming RPM".
Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

chloe_s_ranch
Explorer
Explorer
The 5 speed class A has 457 lbs of torque and 362 hp.

bluwtr49
Explorer II
Explorer II
I would bet they also changed the differential gear ratio in an effort to get the same torque to the axle.
Dick

2002 43' DP Beaver Marquis Emerald Cat C-12 505 HP, 1600 Tq
2003 Jeep Grand Cherokee Overland ---toad

the_bear_II
Explorer
Explorer
Torque is what I would be looking for....

donfrump
Explorer
Explorer
chloe's ranch wrote:
I read where the 2016 Ford F53 chassis changed to a 6 speed transmission, but for emissions regs. dropped the horsepower rating down to 320 from 362 on the 2015 chassis. So if you were buying a gas class A today would you rather have the 5 speed with more hp, or the new 6 speed with 320 hp?(And you can't answer that you want 362 hp with 6 speeds?)


2015 has 305HP and 5 speed automatic
Specifications Stripped Chassis F53 Class A Motorhome
6.8L 3-Valve EFI Tritonยฎ V10 Engine
Power: 305 hp and 420 lbs/ft of torque
Drivetrain: 5-speed TorqShiftยฎ Automatic Transmission with Tow/Haul Mode
-
so they never droped the HP they re increased it part way from 362HP 2014. Ford must derated it too much cause like u say its back to 320HP this year but still 40HP short of the pickup vertion

rgatijnet1
Explorer III
Explorer III
You may be able to re-chip the engine's ECM and get the 362HP.
Is the 6 speed an extra gear or just an overdrive that may not be able to be used in hilly terrain?
The Allison transmission 6 speed has two overdrives.