Each sun and planet gearset provides two speeds. The arm must be free to move in all directions. If you want to go straight to the action, skip to around 2:20. The gearset in the third case alone, 1.31:1, determines the third gear ratio. 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. You may choose any conventional input shaft spline. lenco cs3 5 speed. Also, a hp/tq rating on a transmission does not mean it will actually hold that much. Hurst's inspiration for the Lightning Rods was the Lenco transmission (above) used in drag racing in those years, notably in the NHRA Pro Stock category. 3 Speed with single brg and std output: 23.375". When the installed lever is loose that section is in low and when the lever is tight the sections in high. Copyright 2020, Lenco Racing. This is a very extreme duty sprag assembly. In order to achieve an underdrive first gear ratio the LENCO transmission relys on planet gears which rotate around the previously mentioned sun gear. 1.313%Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. 150 is the usual middle starting point. Section upon section are bolted together until the transmission takes shape, growing taller than the technician building it. You must multiply each case's underdrive ratio in order to determine the first gear ratio. 1.280% Uses 27 tooth planet gears, a 21 tooth sun gear and a 75 tooth ring gear. 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. Most often seen in supercharged alcohol and mega HP nitrous cars the CS1 Standard Design LENCO is also commonly used by Pro Mod machines and blown nitro and alcohol drag boats. Lenco, the all time champion and undisputed leader in the drag racing transmissions. 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. Screw air servo into case until it bottoms out against the jam nut. INSTALLATION Each LENCO transmission is thus a two-speed and is housed in its single dedicated case. If the shift pressure is set to your application lock the jam nut your finished, if not you then need to add shim to raise pressure or subtract shim to reduce pressure. The Lencodrive comes as a 2 speed with reverse. If it is necessary to remove the servos you should reinstall with the lock nut spun completely to the top of its travel. 1.16%Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear. They opted to use the Lenco ST-1200 as it would be a great opportunity to show the tranny's durability and strength by running the truck on both the track and street. Lencodrive 2 Speed. Those two speeds are (1) the lower underdrive ratio and (2) the direct 1:1 final lock-up drive ratio. Screw the servo into the transmission case until contact is made with the shift fork pin. The CS1 will control up to 3000 HP. Screw air servo into case until it bottoms out against the jam nut. The middle case would also contain a 1.37 planet gear set. Air shifted LENCOS come pre adjusted from the factory. In order to achieve an underdrive first gear launch ratio the LENCO transmission relys on planet gears which rotate around the sun gear. Reverse lever. 1.566% Uses 18 tooth planet gears, a 45 tooth sun gear and an 81 tooth ring gear. 1.38% ratio uses 23 tooth planet gears, a 28 tooth sun gear and a 74 ytooth ring gear. When you add the fact that this car is a manual, it really makes this drag racing video a rare one to enjoy. the final shift, being locked to a 1:1 ratio. The Lencodrive will accept virtually any manufacturer's torque converter. As with all Lenco transmissions the ST1200 is a planetary design and comes with up to 6 forward speeds. This information leads to a selection of sun gears with associating ratios, ring gears, and properly sized planet gears that mate the sun gears to their ring gears. Lenco Transmissions utilize several different styles of clutch discs and depending of which style lenco you have you will also find different clutch counts in each case. 1.25% Uses compound 25 and 29 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. All transmissions, once assembled, have to be installed in a car. The truck runs a big-block Chevy that makes 1,100 horsepower on pump gas and lots of nitrous oxide. Typically the CS-1 and CS-3 run the 2.50" piston air servo (150 psi) and the CS-2 and Lenco drive runs the 3.00" piston (250 psi). Its used to force the gear set to make it's ratio by preventing the sun gear from rotating in one direction. (1) in the bruno/lenco the fluids are seperate - which gives you options of running different fluid types and no chance of breaking the lenco side and mixing it into the converter. The CS2 ,CS3, and CS4 LENCO racing transmission is a smaller, lighter and more compact version of our CS1 Standard Design. Thus a 1:1 ratio is achieved. 1.22% Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. Each sun and planet gearset represents two speeds. Gears that mesh easier suffer from less resistance, which leads to higher efficiency and less parasitic loss. 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. 9. 1.31% - Uses 27 tooth planet gears, a 25 tooth sun gear and a 80 tooth ring gear. The dual clutch manual transmission is simply fast. 3 speed. Lenco has gone through a lot of changes in the past year, with a new owner and new location, the team at Lenco set out to redesign, revamp, and redefine the ST1200 street transmission as the new leader in street planetary transmissions. 1.22%Uses 38 tooth planet gears, a 22 tooth sun gear and a 98 tooth ring gear. All three units shifted equal final drive ratio of 1:1. street transmission, Burnout's(on all LENCOS): The middle case would also contain a 1.37 planet gear set. 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. LENCODRIVE Automatic I've mounted it where It's most comfortable for me. 4-Speed $9,830. This is not possible with a traditional cluster gear transmission. Since the taller ring and pinion have more tooth area contact they are more reliable and less prone to breakage. It was . Multiply all three gearset ratios to determine the first gear ratio of 2.47:1. 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. Furthermore the Lenco allows you to achieve 3,000-rpm launches at the track and 1,000-rpm take-offs from the stoplight, depending on how long you leave your foot on the clutch. Apply a small amount of Red (271) Locktite on the set screw. 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. They only serve to transfer the power of the ring gear to the planetary and to rotate around the sun gear if the sun gear is held stationary by the sprag clutch. Low drag (angluar contact and needle bearings). Recommended for cars making up to 1200 HP the ST1200 is pure LENCO through and through. His typical drives usually include lighting up the rear tires while going sideways as he yanks the levers back, shifting the ensemble of levers to move the transmission through 1st, 2nd, and 3rd in quick succession. Screw air servo counter-clockwise about five or six turns before you reassemble the transmission. This will allow for free play in the shift system. Lenco transmissions essentially combine the best of a manual and automatic transmission into one unit. Jeff says that it took him about two weeks to get used to the multi-lever shifter. The Sprag clutch is utilized in each shiftable section of the LENCO with the exception of the reverse. 1.38%Uses 23 tooth planet gears, a 28 tooth sun gear and a 74 tooth ring gear. and anodized for corrosion and galling protection. The planetary carrier that is holding the sun gear and planetary gears and clutch pack is placed inside the ring gear. The three speed is approximately 135 lbs. 1.22%Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. The ST1200 allows Jeff to control how hard his transmission shifts by changing how fast he pulls on the levers. The planet gears are driven by an encompassing ring gear. Lenco, the all time champion and undisputed leader in the drag racing transmissions. When doing burnout's you need to roll up to the water box then shift all sections accept the front section. CS1 Standard Design Since each case contains one gearset and provides both underdrive and direct drive, multiple cases provide multiple underdrive ratios. A first-to-fourth skip-shift solenoid is used on the transmission to help increase fuel economy. - Uses 28/38 tooth planet gears, a 23 tooth sun gear and a 91 tooth ring gear. transmission, 1.68% Uses 15 tooth planet gears, a 62 tooth sun gear and a 91 tooth ring gear. Lencodrives is a CS-2 transmission. This means that it can run for years without any maintenance and still operate smoothly. You can add additional cases and gearsets that will result in 3 or 4 speeds. 1.356%Uses 23 tooth planet gears, a 26 tooth sun gear and a 73 tooth ring gear. By multiplying these three ratios you come up with a 2.46 first gear ratio. 1.25% ratio uses 32 tooth planet gears, a 22 tooth sun gear and an 86 thooth ring gear. 1.56%Uses 22 tooth planet gears, a 55 tooth sun gear and a 98 tooth ring gear. 1.23%Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. Multiply all three gearset ratios to determine the first gear ratio of 2.46:1. 1.356% Uses 23 tooth planet gears, a 26 tooth sun gear and a 73 tooth ring gear. Chevy Pilot Bearing Assembly 1955-2000 Chevrolet (SB & BB), and Lenco transmissions. 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. 1.405%Uses 23 tooth planet gears, a 32 tooth sun gear and an 79 tooth ring gear. There is also a blue disc and a tan disc both of these styles come in one size. Every track differs from day to day or hour to hour. The middle case would also contain a 1.37 planet gear set. Available in single o.. Lenco couplers are machined from 8620 aircraft quality steel and heat treated for for severe duty se.. In the example of a four speed, the case nearest the engine would contain a 1.37 ratioplanet gear set. It is also 2-lbs lighter for lower rotational mass which translates to quicker acceleration. automatic, 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. The first gear set is multiplied by the next, which is multiplied by any subsequent gears sets to eventually reach the final drive ratio of 1:1 where the output shaft is spinning as fast as the input shaft (or overdrive which is any ratio lower than 1 like .85:1). It uses a clutch and flywheel assembly only to engage the transmission into first and reverse gears. Rotate air servo into case until you see the set screw in the air servo piston boss inside the case. 5 likes, 0 comments - Dale's Transmission (@dalesa1transmission) on Instagram: "Weird Transmission Wednesday The Lenco Lenco is not the only manufacturer of these types ." Dale's Transmission on Instagram: "Weird Transmission Wednesday The Lenco Lenco is not the only manufacturer of these types of transmissions, but it is . Material Gears. 1.28% - Uses 32 tooth planet gears, a 25 tooth sun gear and a 89 tooth ring gear. Once installed, make sure the air servo is loose and can turn freely. All three units shifted equal final drive ratio of 1:1. fine tuning your available power application to specific track conditions. 1.22% (1.219) - Uses 30/35 tooth planet gears, a 23 tooth sun gear and a 90 tooth ring gear. When locked, the gear's ratio is translated to the output shaft as the gear and the output shaft are now fixed. The arm is held into the servo piston by a set screw. Lenco Clutch Disk Alignment Tools areavailable in black anodized billetaluminum. It also allowed Lenco to shave as much weight as possible from the finished part. As with all Lenco transmissions the ST1200 is a planetary design and comes with up to 6 forward speeds. the shift pressure to maintain desired wheel speed and traction. 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. Double Large Sprag Assembly -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 BorgWarner T56 six-speed transmission was used in the Viper; automatics have never been available. The original solid steel planetary carrier was also replaced with a two-piece planetary carrier that is part steel and part aluminum. bellhousing patterns - Ford, GM, MoPar and our own five-bolt design. Run the air servo jam nut and o-ring up the threads on the servo. Warning: Do Not over tighten set screw. A five speed requires four cases, and a six speed requires five cases. I shift it with a timed switch getting its signal from an electric shifter box so that it applies voltage for 17 sec at the shift. Shift Patterns: All levers in forward position result in the transmission being in first gear. 1.405% Uses 23 tooth planet gears, a 32 tooth sun gear and an 79 tooth ring gear. Choice of output shaft length and spline. View the whole process and start at the beginning. His dial-in time is 10.60 and his ET for this race was a 10.61. The LENCO ST1200 is the answer for Pro Street and street/strip applications. Those two speeds are (1) the lower underdrive ratio and (2) the direct 1:1 final lock-up drive ratio. This clearance should be between .080"-.120" and can be adjusted by adding or subtracting floaters . lencodrive, 1.50% - Uses 17 tooth planet gears, a 34 tooth sun gear and a 68 tooth ring gear. Going to low on the pressure you get lazy shifts and faster transmission clutch wear requiring frequent changes. This change cut down weight substantially which added to the overall rotational mass reduction. In order to achieve an underdrive first gear launch ratio the LENCO transmission relies on planet gears which rotate around the sun gear. The Lenco Racing ST1200 4 Speed Transmission has been specifically designed and engineered for severe duty street/strip applications. 1.25%(Large shaft gearset) Uses 36 tooth planet gears, a 25 tooth sun gear and a 98 tooth ring gear. You always need to come out of the water box in high gear to prolong the life of the transmission. It is bolted to the end of the transmission with a splined output shaft which will await the driveshaft yoke. Large low drag bearings, that the planetary gears will float on, are pressed into the casings. Uses 225mm clutch pack in a reverse. Th.. Chevy Pilot Bearing Assembly 1955-2000 Chevrolet (SB & BB), and Lenco transmissions. As with all Lenco transmissions the ST1200 is a planetary design and comes with up to 6 forward speeds. The internal action of a LENCO is such that when the transmission is in first gear the dedicated planet gear assembly provides the launch ratio. 1.19%Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. The Lencodrive comes as a 2 speed with reverse. Lenco Racing Transmissions have brought more of their racing technology to the street crowd with a new transmission that is lighter, engineered with new technology, has more efficient components, and has less rotating mass than the previous unit. The Lencodrive does not require a containment blanket unless you use a supercharger or alternative fuels. Each planetary gear set is in its own housing and carries a higher ratio. Assemble next section on to case and bolt tight. Both transmissions are available in 2,3, 4 or 5 speeds. Once all cases have been shifted the entire transmission assembly is locked in the final 1:1 direct drive ratio. The final section is the reverser. The arm must be free to move in all directions. Checking Shift Pressure(only on CS-1 style or center shift transmissions): To measure the shift pressure install checking lever into tower screw jam nut all the way up the tower so it's out of the way. Pressure set-up kit Our shift pressure set-up kit consists of a separate adjustment tower, lever, pull scale and chart of recommended pressures. 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 will allow for free play in the shift system. Each LENCO transmission is thus a two speed and is housed in one dedicated two speed. 1.22% Uses compound 21 and 30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. The sections are joined by a sprag clutch that restricts rotation of the sun gear to one direction. If it takes over one second to reach full pressure at the pod, you have a restriction (regulator, line, button). The result is LENCO quality and durability at a reasonable "Street Machine" price. CS-1 style or center shift transmissions: It makes a powerful and unique street transmission that offers Hot Rodders a gearbox that can handle up to 1200 horsepower reliably, while offering versatility to seamlessly change between an easy drive on the streets to racing hard on the weekend. Each LENCO transmission is thus a two speed and is housed in one dedicated two speed case. Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio. This L.. Purchase the complete LENCO bell housing assembly or individual bellhousing components as needed. the shift pressure to maintain desired wheel speed and traction. 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. The Lencodrive is the shortest and lightest torque converter driven transmission available anywhere. Clutchless shifting is the practice of changing or shifting your gear without touching the left bar lever. You can expand to 3 or 4 speeds by addition of additional cases. 1.56% Uses 22 tooth planet gears, a 55 tooth sun gear and a 98 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. 1.566%Uses 18 tooth planet gears, a 45 tooth sun gear and an 81 tooth ring gear. 2 Speed + reverser with Std output: 17.500". The main advantage of a lenco transmission is its simplicity. LENCO transmissions are shipped with the shift levers removed in order to prevent damage during shipping. Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. The CS1 Standard Design LENCO is recommended for the most severe applications and is capable of repeatable consistency with a minimum of maintenance. So, a transmission may have a first gear ratio of 2.47, a second gear ratio of 1.80, a third of 1.31, as the transmission works its way down to its final drive ratio of 1:1 where the output shaft that drives the wheels is spinning as fast as the input shaft which is attached to the motor. Thus a 1:1 ratio is achieved. Adjustment: Air servo or max-adjust shift tower and lever. Lenco offers an extensive variety of transmissions. All shifting is done with the engine's clutch engaged. The arm must be free to move in all directions. What this means in practice is you use the clutch pedal to engage first and reverse . A LENCO launch ratio is determined by the sun and planet gear ratio. 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 The arm is held into the servo piston by a set screw. 1.34% - Uses 24 tooth planet gears, a 25 tooth sun gear and a 74 tooth ring gear. 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 We supply premium grade bearings in the ST1200 instead of the much more expensive aerospace-spec bearings as used in our race transmissions. Those two speeds are (1) the lower underdrive ratio and (2) the direct'1:1 final lock-up drive ratio. 1.73%Uses 14 tooth planet gears, a 76 tooth sun gear and 104 tooth ring gear. Most popular with Sand Dragsters, Mud racers and Modified pullers. 1.25% Uses compound 25 and 29 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. For more specific information on any of these Lenco transmissions please refer to the Tabs below, or call our tech line at(909) 673-9080. Other refinements are O-ring seals that replaced the the gasket seals between the transmission casings. Apply a small amount of Red (271) Locktite on the set screw. Engineered to handle 3500+ HP the Standard Design LENCO is available with up to 5 speeds and comes in a cast magnesium case. Run air servo jam nut and o-ring down against the case and tighten with a 1 1/2" wrench. 1.297% Uses 26 tooth planet gears, a 22 tooth sun gear and a 74 tooth ring gear. 1.73% Uses 14 tooth planet gears, a 76 tooth sun gear and a 104 tooth ring gear. Again, in an effort to increase fuel economy, Vipers ship with tall 3.07:1 final drive ratios. Multiply the two rear case gearset ratios to determine the second gear ratio of 1.80:1. The boat clutch provides gentle engagement and disengagement. Shown with our boat bellhousing. The Lencodrive is pure Lenco through-and-through with the same gearset components as our CS2. In the example of a four-speed, the case nearest the engine would contain a 1.37 ratio planet gear set. Lenco, the all time champion and undisputed leader in the drag racing transmissions. Attach air lines and your race ready. To demonstrate the inner workings of the Lenco ST-1200 transmission, we followed along as one was being assembled for use in Truckin' Magazine's World's Fastest Street Legal Pickup. Add fluids as necessary and install fill plug. No further adjustments are necessary as there is ample reserve travel in the servo. Each gear is engaged by pulling down on the shift lever, to activate the clutch mechanism for each gear set. 3. The rear axle is a Dana 44 with independent half-shafts. Screw air servo into case until it bottoms out against the jam nut. Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio. The ST1200 also utilizes aircraft quality bearings where the pure-race CS2 uses aerospace spec components. A perfect replacement for expensive breakage prone Powerglides, Turbos, C4, C6 style and Torqueflite transmissions the LENCODRIVE is 100% LENCO and will handle 2500 HP with ease. Chevy Pilot Bearing Assembly 1955-2000 Chevrolet (SB & BB), and Lenco transmissions. custom vertical gate shifter, push button downshifting. Burnout's (on all LENCOS): Air servos are specific to the type of Lenco you run so be sure to pick the correct one from the drop down menu. Shifters and lockouts can be either style. 1.313% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. A perfect replacement for expensive breakage prone Powerglides, Turbos, C4, C6 style and Torqueflite transmissions the Lencodriveis 100% Lenco. 1. When setting up your clutch packs they need to have the proper air gap or clutch pack clearance. Any new EXTREME transmission is available set up for a Torque Converter Drive Unit at no extra charge. The rear case a 1.31 ratio gearset. Now rotate counter clockwise 1/2 to 1 turn and tighten lock nut. and control slippage. Choice of standard or new generation reverses. 1.68% Uses 15 tooth planet gears, a 62 tooth sun gear and a 91 tooth ring gear. The internal action of a LENCO is such that when the transmission is in first gear the chosen planet gear assembly provides the launch ratio. Tags: The three speed is approximately 135 lbs. 2 Speed with single brg and std output: 16.875". Th.. Its used to force the gear set to make ratio by preventingthe sun gear from rotating in one direction. Shift Patterns: 1.73% Uses 14 tooth planet gears, a 76 tooth sun gear and a 104 tooth ring gear. Lenco Racing, the all time champion and undisputed leader in the drag racing. The rear case a 1.31 ratio gearset. What kind of clutch you run is a big factor. Lenco Drag race car. Gear Ratio Reducer For additional information about Lenco products please email us here, or call us at (909) 673-9080. 1.17% (1.165) - Uses 22/38 tooth planet gears, a 24 tooth sun gear and an 84 tooth ring gear. Porsche 911-06 side shift transmission for 914 4 or 6. 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. Stay up to date with news and promotions by signing up for our monthlly newsletter. When you select a gear, the gear shaft moves a synchronizing gear that looks like a toothed collar. 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. All Lencodrives come with the following (less converter). Copyright 2020, Lenco Racing. The Lenco Racing Lencodrive 2 Speed Automatic Transmission represents our response to people who hav.. The rear case a 1.31 ratio gearset. 1.280%Uses 27 tooth planet gears, a 21 tooth sun gear and a 75 tooth ring gear. 1.35% Uses 26 tooth planet gears, a 28 tooth sun gear and a 80 tooth ring gear. Since all LENCO transmissions utilize the same internal gearing design you can easily change from a manual shift set Magnesium Tailhousing (Bushing or Roller Bearing) 300M 32-Spline Output Shaft. Each case in succession, with its particular underdrive ratio, determines the immediate drive ratio. The LENCO gear reduction unit - with a range of 31% to 56%-helps get you off the starting line. ST1200 Street Strip 1.20% Uses compound 22 and 32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Proving itself to be a dependable and excellent option that fits with the blending of racing and street-driven cars, the dual clutch transmission has taken manual transmission performance to a whole new level. 1.338% Uses 24 tooth planet gears, a 25 tooth sun gear and a 74 tooth ring gear. all hardware. In all instances the transmission is then shifted to a 1:1 direct drive ratio by depression Since each case contains one gearset and provides both underdrive and direct drive, multiple cases (gearsets) provide multiple underdrive ratios. Multiply the two rear case gearset ratios to determine the second gear ratio of 1.80:1. multi lever system or with the optional, more compact CO2 setup. These new gear offerings allow Lenco to meet any customer's needs, and allows customers to fine tune their transmission and rear end setup to their hearts desire. Remove fill plug on top the transmission case you are going to adjust. 1.44% ratio uses 22 tooth planet gears, a 35 tooth sun gear and a 79 tooth ring gear. Shift with either our patented multi lever system or with the . Then, continue to screw air servo Out (counter-clockwise) one half turn. We are able to offer the ST1200 Street/Strip at lower cost than our pure race CS1, CS2, CS3 and CS4 designs since we use 8620 steel instead of 9310 material for the ST1200 gears. I use an electric over air setup to shift my new B and J transmission. It uses a clutch and flywheel assembly only to engage the transmission into first and reverse . The second lever, and second tallest, is used for third gear. The gearset in the third case alone, 1.31:1, determines the third gear ratio. Watch it while someone pushes the shifter button. Light weight ring gears (units w/27 and 32 spline shafts only). The CS2 ,CS3, and CS4 1.41% Uses 23 tooth planet gears, a 32 tooth sun gear and a 79 tooth ring gear. To add more speeds to a planetary transmission you add more sections. Gary Sumek of Lenco mentioned that they have been producing a five-speed street version for a few years. Lenco transmissions were first made popular in the early '70s when NHRA Pro Stockers needed a gearbox that was up to the task of 9-second elapsed times. The LENCO Gear Reducer is used as a stand-alone unit or in conjunction with our CS1 Standard Design and CS2, CS3 and CS4 New Generation transmissions in order to employ tall rear gears with the advantage of a short launch ratio. 1.28%Uses 32 tooth planet gears, a 25 tooth sun gear and a 89 tooth ring gear. Equipped with a Lenco ST1200 5-speed transmission, Jeff regularly drives his car on the streets around his home in Oceanside, CA.
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