how to shift a lenco transmission

The result is LENCO quality and durability at a reasonable "Street Machine" price. When the transmission is shifted a clutch pack compresses the rotating sun gear assembly to the direct drive central sun gear. 1.44% ratio uses 22 tooth planet gears, a 35 tooth sun gear and a 79 tooth ring gear. Take the Hurst Lightning Rods, an aftermarket performance shifter marketed in the 1980s. You will need to add a LENCO reverse unit in order to back up. Copyright 2020, Lenco Racing. This change cut down weight substantially which added to the overall rotational mass reduction. The gearset in the third case alone, 1.31:1, determines the third gear ratio. Stay up to date with news and promotions by signing up for our monthlly newsletter. Operation of a Lenco is fairly straight-forward: When it's time to shift gears, simply pull the appropriate lever, with each gear having its own stick. Also known as a 'crash' gearbox for the noise it can make with a mis-timed shift, the non-synchromesh transmission is now only usually found in some trucks. Section upon section are bolted together until the transmission takes shape, growing taller than the technician building it. Since the taller ring and pinion have more tooth area contact they are more reliable and less prone to breakage. Pressure set-up kit Our shift pressure set-up kit consists of a separate adjustment tower, lever, pull scale and chart of recommended pressures. 1.20%Uses 22/32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Thus a 1:1 ratio is achieved. The arm must be free to move in all directions. After inserting arm into the air servo piston boss, run set screw in until you can no longer remove the arm from the piston boss. 150 is the usual middle starting point. First gear is the furthest lever from the driver with higher gears being the nearest levers. Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio. The LENCO ST1200 is the answer for Pro Street and street/strip applications. The rear case a 1.31 ratio gearset. On the track, however, the low 48 percent first gear should be enough to launch any powerful car hard, and the transmission's history of performance won't let anyone down. Run air servo jam nut and o-ring down against the case and tighten with a 1 1/2" wrench. When other gears are selected the synchronizer is placed back in the center of the gear and another synchronizer is activated, repeating the same sliding, matching, and locking maneuver to another set of drive gears. Or maybe simply a T56 magnum is all you need. Lever or CO2 shift. 1.25% Uses compound 25 and 29 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. In general, all LENCO transmissions are a planetary design. Here's some fuzzy footage showing the operation. Shifters and lockouts can be either style. up to the CO2 configuration or vice versa. Stay up to date with news and promotions by signing up for our monthlly newsletter. We can supply practica.. Lenco Racingthrowout bearing collars are machined from premium aircraft grade billet aluminum .. Smaller diameter and shorter length make this transmission a practical choice for use in restricted confines and instances when you have limited distance from the engine to the rear end. This pressure adjustability gives you considerable control when First you need to determine which style clutch packs you are working onsee chart. As an example, this tranny with a set of 4.30:1 rear axle gears, coupled to 32-inch-tall Mickey Thompson tires should allow any Pro Street Chevy to cruise on the highway, averaging 60 mph at slightly above 2,800 rpms. Lenco, the all time champion and undisputed leader in the drag racing transmissions. A first-to-fourth skip-shift solenoid is used on the transmission to help increase fuel economy. You must multiply each cases underdrive ratio in order to determine the first gear ratio. It's a transmission that will set any street/strip car apart from the competition, with performance to match its new all-aluminum billet CNC looks. Unfortunately, we no longer sale small Sprags do to the ever increasing horse power produced with today's motors. Adding progressively different ratio independent gear housings behind each other allows Lenco to create two-speed, four-speed, five-speed, and even six-speed transmissions. 1.44% - Uses 20 tooth planet gears, a 32 tooth sun gear and a 73 tooth ring gear. Each LENCO transmission is thus a two speed and is housed in one dedicated two speed case. Rotate air servo into case until you see the set screw in the air servo piston boss inside the case. Multiply all three gearset ratios to determine the first gear ratio of 2.46:1. Clutchless shifting is the practice of changing or shifting your gear without touching the left bar lever. In all instances the transmission is then shifted to a 1:1 direct drive ratio by depression the final shift, being locked to a 1:1 ratio. 1.22% Uses compound 21 and 30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. Warning: Do Not over tighten set screw. This is a very extreme duty sprag assembly. Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. Our most common style clutch disc is the green disc and it comes in two sizes depending on which style transmission you are working on. The ring gear is then pressed inside of the bearing. The Lenco Racing Lencodrive is the automatic answer for people who prefer torque converter/automatic transmission applications. 1.19%Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Please call for ordering or technical information. There are two different size air servos for the New Generation transmissions.The small air servo (2.5"piston diameter) and the large air servo(3"piston diameter) for the CS-2 large case transmission and Lencodrives. You may choose any conventional input shaft spline. Multiple speeds are achieved through utilization of multiple cases. Magnesium case is standard. The Lenco Racing Lencodrive 4Speed Automatic Transmission represents our response to people wh.. At the time of your inital order, you may add additional sections to your Lencodrive Automatic Lenco.. Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. To install lever remove bolt, insert lever in shift tower so that it faces forward and install bolt. 1.38%Uses 23 tooth planet gears, a 28 tooth sun gear and a 74 tooth ring gear. Since each case contains one gearset and provides both underdrive and direct drive,multiple cases (gearsets) provide multiple underdrive ratios. A large ring gear surrounds the entire solar system of gears. We do offer different thickness floaters for correcting the clutch pack clearance. The ST1200 gives you the advantage of Lenco brute strengthat a lesser price than our full race units. Lenco, the all time champion and undisputed leader in the drag racing transmissions. The planet gears are driven by an encompassing ring gear. 1.31% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Porsche 911-06 side shift transmission for 914 4 or 6. The CS1 planetary gear size is 1". Now rotate tower clockwise until it lightly touches pin on shift fork then rotate tower counter clockwise 2 turns and place hook of scale in top hole of checking lever supplied with transmission (this lever should be about 5 1/2" over all length) and pull scale slowly to shift section, taking note of highest reading this is your shift pressure. 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. Lenco Transmissions Tech. Copyright 2020, Lenco Racing. 1.38% ratio uses 23 tooth planet gears, a 28 tooth sun gear and a 74 ytooth ring gear. - Uses 22/38 tooth planet gears, a 24 tooth sun gear and an 84 tooth ring gear. Now rotate counter clockwise 1/2 to 1 turn and tighten lock nut. 1.31% ratio uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. Skilled drivers can perform a clutchless shift without hurting their transmission, but it does take a little bit of a learning curve to get there. Copyright 2020, Lenco Racing. The hard-anodized finish is meant to thrive in that environment, requiring no more than a quick wipe down with a damp rag, whereas the bare aluminum transmission would need more work to get it sparkling again. direct drive - with reverser / Cannon to control clutch arm position, Screw the servo into the transmission case until contact is made with the shift fork pin. This is our double large sprag assembly and is used primarily in the boat applications, but has found its way into some car applications. A typical CO2 shifting assembly Consists of either a small or large CO2 bottle, bottle brackets, pressure gauges, pressure adjustable shift buttons, air servo, pressure line, fittings and The version 2 of the ST1200 transmission, builds upon that great design with an all-aluminum billet CNC casing, double O-ring seals, hardened anodized finish, and a larger choice of gear ratios for perfect fine tuning of gear ratios. The Lencodrive comes as a 2 speed with reverse. 1.41% Uses 23 tooth planet gears, a 32 tooth sun gear and a 79 tooth ring gear. 1.23%Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. The dual clutch manual transmission is simply fast. Purpose designed and produced for drag, ski and river boat requirements. The air servo is attached to a rotary shift plate by an adjustable arm which is pre-set by the factory and should NOT be changed. A BorgWarner T56 six-speed transmission was used in the Viper; automatics have never been available. The Lenco is basically a planetary transmission where each gear has its own housing and its own shift lever. 1.68% - Uses 15 tooth planet gears, a 62 tooth sun gear and a 91 tooth ring gear. The Lenco Racing Lencodrive 3Speed Automatic Transmission represents our response to people who have asked for a safe and affordable torque converter driven transmission. This in-car shot video shows a Mopar powered engine combined with the clutch-less Lenco Transmission that produces over 850 real Mopar horsepower!!! The Lencodrive will accept virtually any manufacturer's torque converter. Multiply all three gearset ratios to determine the first gear ratio of 2.46:1. Add fluids as necessary and install fill plug. We found the small Sprags service life growing shorter and shorter, so we have discontinued it and highly recommend upgrading to our large Sprag assembly. Simply put, once the transmission is in gear, the power runs through a set of planetary gears. This transmission can be used to drive your hot rod to work Monday through Friday and then to the dragstrip and the winner's circle on weekends. All cases are magnesium. There are a variety of both manual and CO2 servo tower designs. A five speed requires four cases, and a six speed requires five cases. Chevy Pilot Bearing Assembly 1955-2000 Chevrolet (SB & BB), and Lenco transmissions. The second lever, and second tallest, is used for third gear. Choice of standard or new generation reverses. smoke in walnut creek today, golden west middle school yearbook, keith bennett cindy wilson,

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