Other sections are added in a similar way: parts are pressed into casings, gears are added, and sections are bolted together in a repetitious manner. Lenco, the all time champion and undisputed leader in the drag racing transmissions. The possible combinations are endless! Final drive ratio is 1:1. Once engaged, the gears are shifted without a clutch. 1.16%Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear. The tallest to the right is used to shift the transmission from first to second gear. 3 speed. Once determined, these gear configurations are assembled in their planetary carriers. Tags: Boat Transmissions and Boat Clutches Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. In order to achieve an underdrive first gear launch ratio the LENCO transmission relies on planet gears which rotate around the sun gear. In all instances the transmission is then shifted to a 1:1 direct drive ratio by depression When the transmission is shifted a clutch pack compresses the rotating sun gear assembly to the direct drive central sun gear. The second lever, and second tallest, is used for third gear. 1.25% Uses compound 25 and 29 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. Lenco Transmission Overview All Rights Reserved. When this occurs, the ring gear becomes the dominant gear1:1 (final drive ratio). The planet gears are driven by an encompassing ring gear. It is not necessary for the driver to disengage the clutch when shifting from ratio to ratio. V-gate shifter for 4 and 5-speed Lenco | Page 2 | Yellow Bullet Forums Refining the machining process of how the gears are made and even designed resulted in more efficient gears that mesh together easier than the previous version. 1.28% - Uses 32 tooth planet gears, a 25 tooth sun gear and a 89 tooth ring gear. Upshifting is very commonly done this way, but you can also do it while downshifting. Reverse Lockout. 1.338%Uses 24 tooth planet gears, a 25 tooth sun gear and a 74 tooth ring gear. word-day-lightning-rods | News | Grassroots Motorsports lenco air shift options | InsideTopAlcohol Air servos or max-adjust shift towers. LENCO transmissions are a planetary design. No alterations to the transmission, other than the external operating system itself, are required. The CS2 ,CS3, and CS4 This will allow for free play in the shift system. In the Lenco, the shift lever actually moves the clutch pack together to engage the gear in each housing. The biggest benefit to Pro Streeters is that you don't have to worry about overheating, flashing the torque converter or other maintenance costs-as there are none. These are the 5 weirdest transmissions ever sold | Driving The total amount of gear reduction depends on the amount of housings and the overall application of the transmission. Shifters - Lenco Racing Transmissions
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