The 6R140 transmission features a filtration system, low-speed torque converter lockup, double overdrive speeds, and the 'Live Drive' take off.
#FORD 5R110W TRANSMISSION SPECS MANUAL#
However, you can switch to manual shift mode and shift the gears with the "+" and "-" buttons on the shift lever. The 6.7L Powerstroke's 6R140 automatic transmission is the standard, without a manual ever being offered. The exhaust side stays the same, but on the compression side, there are two compressor wheels, providing higher flow at lower exhaust speeds.įord replaced the 5R110W transmission that powered their Super Duty trucks with the 6R140 transmission. The 6.7 Powerstroke utilizes a unique single turbocharger that performs almost as two. The 6.4L Powerstroke had a sequential turbocharger system that utilized two turbochargers that worked great, but the cost was too high considering the results and the system was complex. TurbochargerĪfter a decade of trying, Ford finally achieved more low-end torque and high-end horsepower with the 6.7L Powerstroke thanks to the new turbocharger design. Most 6.7L Powerstroke owners purchase a CP4.2 fail-safe / bulletproof kit beforehand and avoid the issue altogether. This type of failure can cost you up to $8000. The fuel pump itself is easily accessible for replacement, but once it fails, debris from the pump will damage the entire fuel system. Although Ford improved the reliability in comparison to the 6.4L Powerstroke's fuel system, the CP4.2 fuel pump failure is still an issue. The injectors have a redesigned nozzle, while the fuel pump has a larger stroke. With better airflow throughout the entire system, more fuel can be used, and to reap the benefits, Ford upgraded the fuel pump and the fuel injectors. Ford wanted to elongate the life of the aluminum pistons and improve the fuel economy at the expense of power by opting for a lower compression ratio. However, a lower compression ratio leaves more room for higher boost levels, which may be why Ford lowered it. This means that the explosion from the air-fuel mixture will be more powerful. It’s the lowest compression ratio of any Powerstroke engine Ford offers.Ī higher ratio means that air is more compressed in the cylinder. The compression ratio was lower than the previous, 6.4L Powerstroke's (17.5:1) ratio. The compression ratio of the 6.7L Powerstroke is 16.2:1, the same as the 6.7L Cummins diesel engine. Mostly due to emissions, but also because of power and noise, The cast aluminum pistons changed in design quite a few times until Ford's engineers settled. To improve strength and durability, the forged rods have an end cap rotated 45 degrees. The crankshaft is made out of steel, and it features 6 bolt mains. The result was a stronger and lighter engine that came with better fuel economy and better performance. Due to graphite's strong chemical bond, the material turns out twice as strong. Steering away from the heavy cast iron that most diesel engine blocks are made out of, Ford made the 6.7L Powerstroke's engine block out of c ompacted graphite iron (CGI). This resulted in more engine bay space, reduced exhaust volume, and quicker turbo spool-up.
This design results in turbo lag and high temperatures.įord's 6.7 Powerstroke is the first diesel engine with the exhaust coming out towards the engine valley and into the turbocharger. On a turbocharged V8, the air flows through the exhaust headers and into the turbocharger. On naturally aspirated V8 engines, the air enters from the valley and exits to the headers located on the outside. The major change to the cylinder head is the flow.
The cylinder heads have 4 valves per cylinder and a glow plug. A gutsy choice considering the history of unreliable aluminum cylinder heads Duramax being an exception. Ford 2020 6.7 Powerstroke Specs (Scorpion) Cylinder Headįord made the cylinder heads out of aluminum.
0 kommentar(er)
