1.23%Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. Too much torque and the output shaft can suffer deflection, and the whole system can start to fail in its operation as the gears move away from each other. Gears attached to the output shaft are loosely connected. 1.21% Uses 21/31 tooth planet gears, a 24 tooth sun gear and a 76 tooth ring gear. All Rights Reserved. Multiply all three gearset ratios to determine the first gear ratio of 2.46:1. A typical lever shift assembly Consists of hand levers, activation rods, detent levers, rod towers, adjustment nuts, clevises, heim ends, friction washers, mounting bracket and all Stay up to date with news and promotions by signing up for our monthlly newsletter. ST1200 Street Strip the sun gear from rotating in one direction. First you always start with at least one floater and then a clutch disc and repeat ending up with at least one floater. LENCODRIVE Automatic The Lencodrive is the shortest and lightest torque converter driven transmission available anywhere. Lencodrive 3 Speed. 1.22% Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. The CS1 planetary gear size is 1". 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. Please click here for CS3 Timing Chart (.pdf). We acheive more than two speeds by combining multiple cases. The 2 speed, including reverse, bellhousing and lining weighs approximately 108 lbs. Any new EXTREME transmission is available set up for a Torque Converter Drive Unit at no extra charge. New and Used Parts 1. jody - even though i don't run a lencodrive and i have 2 bruno/lencos, i believe i can highlite some differences. The counter shaft has fixed associating gears that are permanently meshed with the loosely connected gears on the output shaft. 1.19% Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. What this means in practice is you use the clutch pedal to engage first and reverse . 1.20%Uses 22/32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Apply a small amount of Red (271) Locktite on the set screw. Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. Reverse Lockout. Large Sprag Assembly -This is our large sprag and unlike the small sprag doesn't have a snap ring in the outer race and has two brass thrust washers. The Lencodrive does not require a containment blanket unless you use a supercharger or alternative fuels. It uses a clutch and flywheel assembly only to engage the transmission into first and reverse . There are a variety of both manual and CO2 servo tower designs. A perfect replacement for expensive breakage prone Powerglides, Turbos, C4, C6 style and Torqueflite transmissions the Lencodriveis 100% Lenco. You must multiply each case's underdrive ratio in order to determine the first gear ratio. Exclusively V.A.R. Likes Received: 180. It is not necessary for the driver to disengage the clutch when shifting from ratio to ratio. The arm must be free to move in all directions. Lenco, the all time champion and undisputed leader in the drag racing transmissions. 1.38% ratio uses 23 tooth planet gears, a 28 tooth sun gear and a 74 ytooth ring gear. Air servos or max-adjust shift towers. The downside of this setup is that the shafts are only supported on their ends, so the shaft can bend with torque. It is not necessary for the driver to disengage the clutch when shifting from ratio to ratio since all shifting is done with the engines clutch fully engaged. 3. To install lever remove bolt, insert lever in shift tower so that it faces forward and install bolt. The ST1200 transmission is pure Lenco through and through and is ideally suited for nitrous, blown, injected and carbureted engines producing up to 1200 HP and 900 lb ft of torque. Since the 30 wt oil is thicker it takes a .
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how to shift a lenco transmission