GM and Ford’s new 10-speed, automatic transmissionsent waves of excitement throughout the automotive community. There is a fiercerivalry between two of the largest vehicle manufacturers in the world, yet theyput their countless differences aside to work on a 9-speed transverse/transaxleand 10-speed transmission. The jointventure reflects both sides recognizing the importance of producing a high-qualitytransmission via collaboration rather than competition. General Motors and Forddesigned the transmission, originally placing it inside the 2017 ChevroletCamaro XL1, for a single purpose: to push performance and efficiency to arevolutionary level.
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Gm 10 Speed Transmission Crate
Dan Nicholson, GM Global Propulsion System’s vicepresident, stated: “With world-class shift times on par with the world’s bestdual-clutch transmission and the refinement that comes only from the trueautomatic, the 10-speed delivers incomparable performance on and off the track…it also leverages the experience of our other multispeed transmissions todeliver that performance with greater efficiency as its use expands into othervehicles.”
The revolutionary 10-speed transmission soundsimpressive in theory – but what exactly makes it stand out. In the contentbelow, we explore what you need to know about the new 10-speed transmission. Many of these characteristics will hold truefor the 9-speed transaxle.
1. Ratio Distance
Citrix workspace download 2009. Dec 08, 2018 Also, the 10-speed HD automatic is in fact a GM design that Allison Transmission validated by putting it through their series of tests. Please keep in mind that General Motors and Allison company. The General Motors Hydra-Matic 10-speed 10L80 automatic transmissions is a heavy duty (high performance) variant of the Hydra-Matic 10LXX transmission family. The 10L80 moniker is decoded as.
The span between the 1st and 10thgear is wide; however, GM and Ford’s 10-speed transmission is relatively tight.Limited span between higher gears increases sustainability during highwaydriving, especially when in the final gear. The 10-speed transmission offers a20% decrease in RPM during shifting. While towing, decreased ratio distanceensures smoother shifts.
2. Close 8th, 9th, and 10th Gears
What is the purpose of 10 gears? The final threeperform as overdrive tools. The 8th, 9th, and 10thgears enhance acceleration, fuel economy, and – as mentioned – towingperformance. Due to the proximity of ratios, downshifting between top gears isnearly imperceptible.
3. Smooth Shifting
GM and Ford’s 10-speed transmission is guided by sixclutches, installed in pairings. When shifting gears, the torque converter isnot forced to unlock. Each clutch is regulated by solenoid valves. This evolutionis consistent with the trend of increased electrificationof the transmission. Finally,hydraulic passage lengths are shortened. These unique factors increaseefficiency, resulting in a smooth, seamless shift or downshift without jarringor shaking.
4. Reducing Mechanical Friction Spin Loss
Ultimately, the 10-speed transmission is designed toreplace 6-speed and 8-speed transmissions. GM and Ford built the transmissionto minimize spin losses. Reducing spin loss guarantees that the 10-speedtransmission’s gears work more efficiently than its 6-speed and 8-speed counterpart.
5. Fuel Efficiency & Optimized Procedures
Trends in the automotive world continually pointtowards fuelefficiency, especially in the design of transmissions.Fuel-efficient technologies are developed and augmented regularly. Compared toa 6-speed transmission, the 10-speed adds only one-inch and four pounds to thetransmission body. Without a single cast-iron component, the transmission islight while remaining powerful and efficient.
Alongside a focus on fuel efficiency, GM and Ford builttheir 10-speed transmission for optimal functioning, operated by two hydraulicpumps. Both pumps perform a different task, each balancing temperature andtransmission fluid pressure. Optimal functioning depends on Mercon ULV orDexron ULV, transmission fluid created specifically for Ford and GM’sinnovative transmission, to reduce friction, regulate temperature, and preventhydraulic pump surplus. Increased fluidcomplexity is a trend impacting transmission fluidand will continue into the future. The “ULV” stands for ultra-low viscosity andis increasingly important for clutch engagement and ease of travel throughelectronic components such as solenoids.
Among others in the GM line, the Camaro ZL1, ChevyTahoe, Cadillac Escalade, and Yukon Denali are built with the 10-speedtransmission. On the Ford side, the 10-speed can be found in the F-150,Mustang, Expedition, Navigator and Ranger. Further integrations willincreasingly become evident as 2019 closes and 2020 looms on the horizon.
Manufacturers across the globe are scrambling to achieve increased fuel economy and performance from vehicles. The transmission is at the center of that engineering effort. Many experts caution the pace of change because the durability of new designs is unknown. Normally it takes many years to test and realize design flaws. Even then, major transmission issues may not become apparent to customers until a vehicle achieves 100,000 miles. At this point a customer could be faced with a major transmission repair bill. This is where our shops can assist retail, wholesale and fleet customers across Colorado.
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