His dial-in time is 10.60 and his ET for this race was a 10.61. Engineered to handle 3500+ HP the Standard Design LENCO is available with up to 5 speeds and comes in a cast magnesium case. When this same section is shifted the Sprag then allows the sun gear to rotate in the same direction as the. Th.. Large Strips and Clips Sprag Assembly - Thisis a specialized sprag and is used in applications where tire shake is a constant problem. Second gear ratio is 1.80 and third gear is a 1.31 ratio. 5.6K views, 84 likes, 1 loves, 13 comments, 17 shares, Facebook Watch Videos from Lenco Racing Transmissions, Inc.: David answers a few FAQ on CS-1 thru CS-4 Transmissions A G-force or Liberty face plated 4 speed may be what you want. 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. 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. Apply a small amount of Red (271) Locktite on the set screw. 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. 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. Choice of output shaft length and spline. 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
No further adjustments are necessary as there is ample reserve travel in the servo. 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. With a simple shift pressure adjustment you can easily compensate
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. I've made provision, so that shift lever can be moved to the back of the trans quite easily. The tallest to the right is used to shift the transmission from first to second gear. The CS1, CS2, CS3 and CS4 transmissions provide the perfect solution for harnessing the unique HP and torque output of boat engines. 1.256%Uses 32 tooth planet gears, a 22 tooth sun gear and a 86 tooth ring gear. We do offer different thickness floaters for correcting the clutch pack clearance. 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. This action compresses an internal clutch pack which results in a final driveratio of 1:1. The original solid steel planetary carrier was also replaced with a two-piece planetary carrier that is part steel and part aluminum. The CS-2 is much easier to work on than the CS-1. and anodized for corrosion and galling protection. It has special attachments to help it react quicker between the locked and the overrun position thus extending its service life. - Uses 28/38 tooth planet gears, a 23 tooth sun gear and a 91 tooth ring gear. The Lenco Racing Lencodrive is the automatic answer for people who prefer torque converter/automatic transmission applications. transmissions, To install lever remove bolt, insert lever in shift tower so that it faces forward and install bolt. The original transmission was and is still a bulletproof transmission for the street/strip crowd. 1.28% Uses 32 tooth planet gear, a 25 tooth sun gear and an 89 tooth ring gear. - Uses 22/38 tooth planet gears, a 24 tooth sun gear and an 84 tooth ring gear. Each lever controls one planetary gear set. 5-Speed $10,660. When the installed lever is loose that section is in low and when the lever is tight the sections in high. 1.24%Uses 26/31 tooth planet gears, a 23 tooth sun gear and an 80 tooth ring gear. 1.35%Uses 26 tooth planet gears, a 28 tooth sun gear and an 80 tooth ring gear. 9. Think of it as manually shifting an automatic transmission. The Lencodrives come with three different shafts, a Ford, a GM, and a 1 1/4. (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. I purchased the trans disassembled and do not have the shim configuration shown in the drawing. 1.56% - Uses 16 tooth planet gears, a 41 tooth sun gear and a 73 tooth ring gear. 1.38% ratio uses 23 tooth planet gears, a 28 tooth sun gear and a 74 ytooth ring gear. There must be a minimum of .060" to a maximum of .090" of clearance between face of pilot bearing to beginning of clutch spline. Second gear ratio is 1.80 and third gear is a 1.31 ratio. street transmission, Lenco, the all time champion and undisputed leader in the drag racing transmissions. In order to achieve an underdrive first gear launch ratio the LENCO transmission relies on planet gears which rotate around the sun gear. Multiply all three gearset ratios to determine the first gear ratio of 2.46:1. In the example of a four-speed, the case nearest the engine would contain a 1.37 ratio planet gear set. I do have three .080" shims, two .017" and six .027" shims. This change reduced any chance of casting imperfections and it offered more control over the final product. We supply premium grade bearings in the ST1200 instead of the much more expensive aerospace-spec bearings as used in our race transmissions. 1.19%Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Unfortunately, we no longer sale small Sprags do to the ever increasing horse power produced with today's motors. Additionally, the Lencodrive's main valve body is machined from billet components and is not the typically modified OEM Detroit component. 1.313% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. 1.368% Uses 21 tooth planet gears, a 25 tooth sun gear and an 74 tooth ring gear. 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. 1.25% (1.252) - Uses 24/28 tooth planet gears, a 23 tooth sun gear and a 78 tooth ring gear. It might be less, it might be much more. Sight through plug hole, where you will see the outer edge of the rotary shift plate. 1.20% Uses compound 22 and 32 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. Multiple speeds are achieved through utilization of multiple cases. The final section is the reverser. 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. The ST1200 gives you the advantage of Lenco brute strengthat a lesser price than our full race units. Lever or CO2 shift. The Lencodrive comes as a 2 speed with reverse. This will allow for free play in the shift system. Small Sprag Assembly -This is a our small Sprag, note the snap ring in the outer race and single brass thrust washer. Different Sizes -LENCO utilizes several different styles and sizes of sprags depending on which application the transmission is used for. If it is necessary to remove the servos you should reinstall with the lock nut spun completely to the top of its travel. 1.44%Uses 22 tooth planet gears, a 35 tooth sun gear and a 79 tooth ring gear. The rear case a 1.31 ratio gearset. The rear case a 1.31 ratio gearset. Air servos or max-adjust shift towers. Competition Eliminator, Super classes, Top Dragster and Pro Stock cars are typical classes where you will find the New Generation LENCO. Air or lever shift. at a lesser price than our full race units. When discs wear to .052" or less they must be replaced. Posted 6 days ago. You always need to come out of the water box in high gear to prolong the life of the transmission. 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. 1.19% (1.191) - Uses 28/38 tooth planet gears, a 23 tooth sun gear and a 91 tooth ring gear. Purpose designed and produced for drag, ski and river boat requirements. Lenco offers an extensive variety of transmissions. 1.23% Uses 21/30 tooth planet gears, a 25 tooth sun gear and a 76 tooth ring gear. You will need to add a LENCO reverse unit in order to back up. With that said, the bare finish is a popular choice for the boat racing crowd, so for some beauty trumps added maintenance. from DarkSide Air or Lever Shift. 1.31% ratio uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. A five speed requires four cases, and a six speed requires five cases. Leaving the pressure plate spring (wave spring) out, place the pressure plate on top of the clutch pack. In order to achieve an underdrive first gear ratio the LENCO transmission relys on planet gears which rotate around the previously mentioned sun gear. The ring gear is then pressed inside of the bearing. If it is necessary to remove the servos you should reinstall with the lock nut spun completely to the top of its travel. 1.438% Uses 20 tooth planet gears, a 32 tooth sun gear and a 73 tooth ring gear. The 2 speed, including reverse, bellhousing and lining weighs approximately 108 lbs. lntroduced in 1972 as a 2-speed the Standard Design LENCO is our largest and strongest transmission. The shift lever is almost the same height as the standard 5th gear lever. The gearset in the third case alone, 1.31:1, determines the third gear ratio. 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. No further adjustments are necessary as there is ample reserve travel in the servo. The second lever, and second tallest, is used for third gear. 1.41% Uses 23 tooth planet gears, a 32 tooth sun gear and a 79 tooth 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. Lenco celebrates over forty-five years of the engineering and manufacturing of the most successful drag racing transmissions ever built. <lol> Trust me, It's no where near shoulder height ! 1.566% Uses 18 tooth planet gears, a 45 tooth sun gear and an 81 tooth ring gear. The truck runs a big-block Chevy that makes 1,100 horsepower on pump gas and lots of nitrous oxide. Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio.
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