The Lencodrive is pure Lenco through-and-through with the same gearset components as our CS2. No further adjustments are necessary as there is ample reserve travel in the servo. Attach air lines and your race ready. Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio. 1.256% Uses 32 tooth planet gears, a 22 tooth sun gear and a 86 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. 1.356%Uses 23 tooth planet gears, a 26 tooth sun gear and a 73 tooth ring gear. Apply a small amount of Red (271) Locktite on the set screw. Once installed, make sure the air servo is loose and can turn freely. 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. 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. Shifters and lockouts can be either style. Then start the tires spinning, now shift the front section so that you are now in high gear. The choice is yours. Stay up to date with news and promotions by signing up for our monthlly newsletter. This L.. Lenco Clutch Disk Alignment Tools areavailable in black anodized billetaluminum. When you select a gear, the gear shaft moves a synchronizing gear that looks like a toothed collar. The second lever, and second tallest, is used for third gear. 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. It's capacity is much stronger than the small sprag. Manual 2 Speed with Neutral Safety [DRIVE-2-S], Manual 3 Speed with Neutral Safety [DRIVE-3-S], Manual 4 Speed with Neutral Safety [DRIVE-4-S], Lockout Shift with Neutral Safety [DRIVE-L-S]. The 4-speed above shows how to determine drive ratios. If you already have a ST1200, you can upgrade your transmission with the new parts, ratios, and even new casing as all of the new upgraded components are compatible with the older units. 5-Speed $10,660. Charlotte , NC. Apply a small amount of Red (271) Locktite on the set screw. In the example of a four speed, the case nearest the engine would contain a 1.37 ratioplanet gear set. Air or lever shift. 1.73% Uses 14 tooth planet gears, a 76 tooth sun gear and a 104 tooth ring gear. 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. Final drive ratio is 1:1. Thus a 1:1 ratio is achieved. Here's some fuzzy footage showing the operation. 1.21%Uses 21/31 tooth planet gears, a 24 tooth sun gear and a 76 tooth ring gear. 1.20% Uses compound 22 and 32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. The Lenco Racinggear reduction unit, when used in conjunction with our CS1, CS2, CS3, or CS4 t.. Lenco Racingmachines our input shafts from 300M and Marage stock. We acheive more than two speeds by combining multiple cases. It uses a clutch and flywheel assembly only to engage the transmission into first and reverse gears. The result is LENCO quality and durability at a reasonable "Street Machine" price. 1.44% - Uses 20 tooth planet gears, a 32 tooth sun gear and a 73 tooth ring gear. 3 Speed + reverser with Pro output: 25.000". When the transmission is shifted a clutch pack compresses the rotating sun gear assembly to the direct drive central sun gear. lntroduced in 1972 as a 2-speed the Standard Design LENCO is our largest and strongest transmission. You always need to come out of the water box in high gear to prolong the life of the transmission. Glazed, burned and chipped discs must also be replaced immediately. With its larger size and more teeth, it rotates faster, so it spins the output shaft faster, which in turn spins the rear wheels faster. 2 Speed + reverser with Pro output: 18.500". Lenco Drag race car. Each case in succession, with its particular underdrive ratio, determines the immediate drive ratio. 1.16% Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear. Each case in succession, with its particular underdrive ratio, determines the immediate drive ratio. Purpose designed and produced for drag, ski and river boat requirements. Clutchless Shifting: What It Is & How to Do It Safely - Horsepowerful Pistol Grip Manual Shifter. We recommend that you discuss your application with our technical representatives and follow their suggestions on which You must multiply each case's underdrive ratio in order to determine the first gear ratio. .. All Lenco coupler clamps are machined from 7075 aircraft grade aluminum. The Lenco Racing Lencodrive 2 Speed Automatic Transmission represents our response to people who hav.. What does this mean, you wonder? Now taking all the lash out by lifting up on the clutch housing (outer housing) and press down on the pressure plate then measure the distance between the top of the pressure and the bottom of the snap ring groove of the clutch housing, This is your clutch pack clearance. The middle case would also contain a 1.37 planet gear set. 1.22% Uses 21/30 tooth planet gears, a 24 tooth sun gear and a 75 tooth ring gear. 1.31% ratio uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. Technical Support - Lenco Racing Transmissions In order to achieve an underdrive first gear launch ratio the LENCO transmission relys on planet gears which rotate around the sun gear. The ring gear is then pressed inside of the bearing. 8620 is a premium quality material that will provide excellent service for 1200 HP hot rods. This is first gear. 1.25% ratio uses 32 tooth planet gears, a 22 tooth sun gear and an 86 thooth ring gear. Air servos or max-adjust shift towers. 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. 1.438% Uses 20 tooth planet gears, a 32 tooth sun gear and a 73 tooth ring gear. This change reduced any chance of casting imperfections and it offered more control over the final product. The total amount of gear reduction depends on the amount of housings and the overall application of the transmission. 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. No further adjustments are necessary as there is ample reserve travel in the servo. Lenco transmissions essentially combine the best of a manual and automatic transmission into one unit. If you have a car that you drive to the store on Monday and to the drag strip on Sunday, the only hard question that you have to ask yourself is: Do you prefer anodized or clear? 1.20% Uses 22/32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. This is an in-car shot video of Mike drag. 1. In order to achieve an underdrive first gear launch ratio the LENCO transmission relies on planet gears which rotate around the sun gear. Lenco burnout procedures | InsideTopAlcohol 1.41%Uses 23 tooth planet gears, a 32 tooth sun gear and an 79 tooth ring gear. If you want to go straight to the action, skip to around 2:20. The only exception is replacing the pressure plate and resurfacing the flywheel after a long period of use, and frequently changing the transmission fluid about every 400-500 miles. Although the initial cost is more than a well-built TH400, the longer durability and low-maintenance cost of the Lenco will pay for itself in the long run. 1.50% - Uses 17 tooth planet gears, a 34 tooth sun gear and a 68 tooth ring gear. 1.22%Uses 38 tooth planet gears, a 22 tooth sun gear and a 98 tooth ring gear. Rotate air servo into case until you see the set screw in the air servo piston boss inside the case. 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). You achieve more than two speeds by combining multiple casesFor example, a three speed requires two cases, A four speed requires three cases, A five speed requires four cases and a six speed requires five cases. 1.31% ratio uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. LENCO racing transmission is a smaller, lighter and more compact version of our CS1 Standard Design. The original ST1200 came with a cast aluminum case, gasket seals, and a range of selectable gear ratios. 1.479%Uses 19 tooth planet gears, a 35 tooth sun gear and an 73 tooth ring gear. All Rights Reserved. the shift pressure to maintain desired wheel speed and traction. Its used to force the gear set to make it's ratio by preventing the sun gear from rotating in one direction. 1.50%Uses 22 tooth planet gears, a 44 tooth sun gear and an 88 tooth ring gear. The next lever is used for fourth gear and final lever for fifth. It is not necessary for the driver to disengage the clutch when shifting from ratio to ratio. Lenco Racing | The World's Best Racing Transmissions Screw the servo into the transmission case until contact is made with the shift fork pin. Once you have achieved the proper clearance reinstall the pressure plate spring and clutch housing snap ring it is then complete, ready for installation. Now rotate counter clockwise 1/2 to 1 turn and tighten lock nut. fine tuning your available power application to specific track conditions. 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. 1.438%Uses 20 tooth planet gears, a 32 tooth sun gear and a 73 tooth ring gear. Unlike a traditional manual transmission with its singe shifter, planetary transmissions have multiple levers which are used to shift the transmission. Since the taller ring and pinion have more tooth area contact they are more reliable and less prone to breakage. All shifting is done with the engine's clutch engaged. Lenco Racing Releases New Billet Street Transmission - MotorTrend The sun gear only rotates when it is locked with the ring gear. 1.25% (1.252) - Uses 24/28 tooth planet gears, a 23 tooth sun gear and a 78 tooth ring gear. Choice of ratio. 1.280% Uses 27 tooth planet gears, a 21 tooth sun gear and a 75 tooth ring gear. Since each case contains one gearset and provides both underdrive and direct drive,multiple cases (gearsets) provide multiple underdrive ratios. The Lencodrive's trans-brake is controlled by an electric solenoid which activates hydraulic compression of a dedicated clutch pack. the shift pressure to maintain desired wheel speed and traction. 1.68% Uses 15 tooth planet gears, a 62 tooth sun gear and a 91 tooth ring gear. All three units shifted equal final drive ratio of 1:1. 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. When this same section is shifted the Sprag then allows the sun gear to rotate in the same direction as the. For additional information about Lenco products please email us here, or call us at (909) 673-9080. multi lever system or with the optional, more compact CO2 setup. The LENCODRIVE is the automatic answer for people who prefer torque converter/automatic transmission applications. 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. Second gear ratio is 1.80 and third gear is a 1.31 ratio. 1.35% Uses 26 tooth planet gears, a 28 tooth sun gear and a 80 tooth ring gear. Large Strips and Clips Sprag Assembly - Thisis a specialized sprag and is used in applications where tire shake is a constant problem. The three speed is approximately 135 lbs. V-gate shifter for 4 and 5-speed Lenco | Page 2 | Yellow Bullet Forums Likes Received: 180. Yes, there are 18 different car gearbox types - MSN Lenco Clutch Disk Alignment Tools areavailable in black anodized billetaluminum. Its used to force the gear set to make ratio by preventingthe sun gear from rotating in one direction. Boat Transmissions and Boat Clutches <lol> Trust me, It's no where near shoulder height ! Run air servo jam nut and o-ring down against the case and tighten with a 1 1/2" wrench.
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