150 is the usual middle starting point. The Lencodrive is the shortest and lightest torque converter driven transmission available anywhere. Run the air servo jam nut and o-ring up the threads on the servo. Large low drag bearings, that the planetary gears will float on, are pressed into the casings. - Uses 30/35 tooth planet gears, a 23 tooth sun gear and a 90 tooth ring gear. 5-Speed $10,660. 1.405%Uses 23 tooth planet gears, a 32 tooth sun gear and an 79 tooth ring gear. Thus a 1:1 ratio is achieved. This will allow for free play in the shift system. ST1200 4 Speed with Reverse and Shifter | Lenco Recommended for cars making up to 1200 HP the ST1200 is pure LENCO through and through. Second gear ratio is 1.80 and third gear is a 1.31 ratio. 1.73% Uses 14 tooth planet gears, a 76 tooth sun gear and a 104 tooth ring gear. Shift pressure is adjustable, whether it be for one case, all cases or anindividual case in a multiple case configuration. 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%Uses 21/33 tooth planet gears, a 22 tooth sun gear and a 76 tooth ring gear. specific design will suit you best. Assemble next section on to case and bolt tight. lenco air shift options | InsideTopAlcohol RATIO CHART Likes Received: 180. 1.31% Uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. The middle case would also contain a 1.37 planet gear set. 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. 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. 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. It is sometimes necessary to have an extra floater disc to reach the desired clutch pack clearance and normally the extra floater would go next to the planet case. 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. the final shift, being locked to a 1:1 ratio. 1.16%Uses 21/36 tooth planet gears, a 22 tooth sun gear and a 79 tooth ring gear. 1.56%Uses 22 tooth planet gears, a 55 tooth sun gear and a 98 tooth ring gear. Lencodrive 4 Speed. One variation is that the ST1200 uses budget-friendly 8620 alloy for the gears instead of the more expensive 9310 material. You may choose any conventional input shaft spline. What this means in practice is you use the clutch pedal to engage first and reverse . 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. We supply premium grade bearings in the ST1200 instead of the much more expensive aerospace-spec bearings as used in our race transmissions. Remember that each separate case contains it own Each LENCO transmission is thus a two speed and is housed in one dedicated two speed case. When doing burnout's you need to roll up to the water box then shift all sections accept the front section. If the first 300 feet of track is excellent, for instance, full shift pressure and instant lock-up may be desired. Call the Hurst Lightning Rods, a popular sight in a mid-'80s issue of Hot Rod, a road-going take on a Lenco transmission. When doing burnout's you need to roll up to the water box then shift all sections accept the front section. There are a variety of both manual and CO2 servo tower designs. The ST1200 is the same engineering design as the all-out-race New Generation CS2 but with a couple of minor differences. necessary hardware. The next lever is used for fourth gear and final lever for fifth. It's capacity is much stronger than the small sprag. 1.31% ratio uses 27 tooth planet gears, a 25 tooth sun gear and an 80 tooth ring gear. There are a variety of both manual and CO2 servo tower designs. Clutchless Transmission - Liberty's Gears Rotate air servo into case until you see the set screw in the air servo piston boss inside the case. All LENCO transmissions can be shifted with levers or a CO2 system. 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. with its dedicated underdrive ratio, determines the immediate drive ratio. How To Shift A Lenco Transmission ? - Answerlic All Rights Reserved. No further adjustments are necessary as there is ample reserve travel in the servo.
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