The first speed is when the ring gear is rotating while the sun gear is stationary. All LENCO transmissions operate in basically the same way and if you have any questions about servicing your trans please call our tech line at (909) 673-9080. 1.56% Uses 22 tooth planet gears, a 55 tooth sun gear and a 98 tooth ring gear. If needed you may vary 1 full turn up or down from your 2 turns out in order to achieve the shift pressure desired. With a docile nature and racing pedigree, the new ST1200 improves upon the old, making a great transmission even better with improved technology, refined parts, and lower rotational mass for faster acceleration. word-day-lightning-rods | News | Grassroots Motorsports The second lever, and second tallest, is used for third gear. Copyright 2020, Lenco Racing. Multiply the two rear case gearset ratios to determine the second gear ratio of 1.80:1. Shims before and after the shifter plate assembly -. The sun gear is the center of the mechanism's universe. 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. Section upon section are bolted together until the transmission takes shape, growing taller than the technician building it. On the street five-speed model the ratios start at 3.25 in first gear, 2.26 in second, 1.64 in third, 1.25 in fourth, and fifth gear is 1:1. Second gear ratio is 1.80 and third gear is a 1.31 ratio. 1.24% Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. The rear case a 1.31 ratio gearset. Both transmissions are available in 2,3, 4 or 5 speeds. 1.48% ratio uses 22 tooth planet gears, a 40 tooth sun gear and an 83 tooth ring gear. With a simple shift pressure adjustment you can easily compensate Light weight ring gears (units w/27 and 32 spline shafts only). The Lenco provided unbreakable performance and lightening-quick gear changes, which made these clutchless wonders the tranny of choice among the ultimate door slammer crowd. We offer Turbo 400, C6, Mega and standard Powerglide size input shafts per your requirements. The ST-1200 is not one of their most popular transmissions (they still sell more racing models), but it is the answer to many problems facing high-horsepower street cars and trucks that need a compromise between a stout race and street transmission. Our sister publication is attempting to build an 8-second quarter-mile, '68 Chevy pickup which will also embark on a 450-plus mile trek from Los Angeles to Phoenix without any other changes. Small Sprag Assembly -This is a our small Sprag, note the snap ring in the outer race and single brass thrust washer. A first-to-fourth skip-shift solenoid is used on the transmission to help increase fuel economy. Gary Sumek of Lenco mentioned that they have been producing a five-speed street version for a few years. The arm must be free to move in all directions. Lenco CS1 Assembly Help | Yellow Bullet Forums for all your racing needs, LENCO transmissions are a planetary design. Going to high on the pressure shocks the transmission and drive-train. The Lencodrives come with three different shafts, a Ford, a GM, and a 1 1/4. Different Sizes -LENCO utilizes several different styles and sizes of sprags depending on which application the transmission is used for. Lenco transmissions essentially combine the best of a manual and automatic transmission into one unit. Lenco burnout procedures | InsideTopAlcohol e30 m52 turbo. All levers in forward position result in the transmission being in first gear.

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