SOLD. 4L80E Race Transmission (4x4), Manual Shift with Trans-Brake. Just show off once and I can pretty well be sure that I will miss a shift and look like an idiot. A three speed has two cases, a four speed has three cases, and a five speed has four cases. The BRT revolutionized the industry by giving racers a safe, consistent, yet reliable alternative to the . Its used to force the gear set to make it's ratio by preventing the sun gear from rotating in one direction. When you pull the shift lever for a case, you lock that section from its ratio to 1:1. New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). The Quick Drive converter drive unit operates similar to the Bruno, allowing coupling of torque converter setups to B&J, Lenco or Liberty transmissions. Normally one uses a clutch to launch and after the run use a clutch when slowing down but NO clutch to shift. LENCO CS1 - 4-Speed Transmission (Air) 1.375 10-Spline Input Shaft 32 Spline Output Shaft Air Shift with Low/Reverse Lever 1.41 - 1.31 - 1.28 Ratio. range back then. What's neat is that he pulls all five gears in the eighth mile. The sprag clutch is utilized in each shiftable section of the Lenco with the exception of the reverse. B&J Early Big Boy mag case 3 speed, 140 2nd- 180 low, was our back up trans, never run after rebuild and gear change, If it takes over one second to reach full pressure at the pod, you have a restriction (regulator, line, button). The idea behind the Lenco is simple, but the engineering was not simple. Lenco Racing Street Transmission ST1200, 6 speed. No alterations to the transmission, other than the external operating system itself, are required. 5-Speed $10,250. Sprag measures 1.040" wide and is similar in design to the helicopter sprag. This gadget employed three shift levers to accomplish everything that a single lever could do. A shift inhibit circuit compensates for tire spin. The Lenco is basically a planetary transmission where each gear has its own housing and its own shift lever. 4-Speed $9,450. Simply put, once the transmission is in gear, the power runs through a set of planetary gears. Because these units are shifted by a clutch pack, it's much easier to upshift at 3000 hp than 7273. LENCO CS1, 4-Speed Transmission w/Hex Shifter, Gear Ratios: 2.85 - 1.90 - 1.37 - 1 to 1 . The Lencodrive is the shortest and lightest torque converter driven transmission available anywhere. It held up well for us. Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. Any transmission configuration can be used (up to a six-speed) with either a 12-volt activated solenoids or pulse signal activated solenoids. Teams use a five-speed transmission with a clutch that allows maximum tuning, and lets that small block scream to the new 10,500 rpm limit with ease. In February 1992, the US patent office awarded the BRT Converter Drive US patent #5090528 for its unique innovative design. LENCO Shift Pressure Gauge Jerry Bickel LENCO Transmission Mounting Kit All instructions and support documents/paperwork View Full Description. The ST1200 gives you the advantage of Lenco brute strength at a lesser price than our full race units. The Lenco is a clutchless transmission. It was a good transmission and a blast to drive. A standard Lenco ST1200 will run you $4750 with standard bearings and coarse spline output shaft. Payment Details. Since all LENCO transmissions utilize the same internal gearing design you can easily change from a manual shift set up to the CO2 configuration or vice versa. Please contact Billy Johnston for . Jeffco started making "street" trans' & are a less expensive alternative to the Lenco. September 14, 2014, 04:24 PM. You can't downshift or re-engage a gear set, they go only one-way. This is a new resin item cast from a 3D-printed master. Stuck at home watching the live feed trying to save money to finish my galaxie in time for next year. To me, it is a real pleasure to watch a stick car go down the track when the driver knows how to shift. The shift button is set up with two 1/8" pipe ports. the Lenco's were not originally designed for street use (you could not put them into low gear w/o coming to a complete stop). All LENCO transmissions can be shifted with levers or a CO2 system. I ended up using a Mcleod dual disk . Description. This means that if typical driving is what one is looking for, one may just push the two . Simply pull levers when the desired rpms are reached in each gear. The Jeffco planetary transmission may not be quite as well known as the Lenco but it is one hairy beast of a gear box that works in much the same way as the Lenco with some notable differences. SOLD. All transmissions, once assembled,. The unit we had is no longer available, it was a two speed with direct and 25% overdrive. Material Gears. How a Lenco Works The Lenco Racing ST1200 4 Speed Transmission has been specifically designed and engineered for severe duty street/strip applications. Lenco makes a street version of the trans. To understand the powerflow of this transmission, think of each section as a simple 2-speed. Follow. He figured these Pro Stock cars were going to be pushing over 1,000 horsepower, so he knew he wanted to approach the design in a completely different way. and profile machined to keep weight at a minimum on the race car. It is a one-piece unit including 3D-printed shifter levers. Lenco CS 1, CS 2 or CS 3 shift pressure scale. The new Lenco product is designed to handle up to 1200 hp and shift gears without any delays. They can bolt as many as 5 units together for 6 speeds. . Only problem is, Lenco's are expensive and need lots of attention. Lenco Racing Street Transmission ST1200, 6 speed. See all 64 photos The transmission grows as sections are added and bolted together. I would never change back to a clutch assisted , cluster gear trans again. A lenco is a great unit, but In our business, we want to sell units that do not come back for quite some time, at the exspense of a little performance. The Lencodrive is the shortest and lightest torque converter driven transmission available anywhere. Take the Hurst Lightning Rods, an aftermarket performance shifter marketed in the 1980s. You can expand to 3 or 4 speeds by addition of additional cases. Each sun and planet gearset represents two speeds. ~ Once all the old fluid is out of the line squeeze and hold the clutch lever and close the bleeder valve. * All internal parts fully manufactured in our 50,000 square-foot facility. This is an in-car shot video of Mike drag racing his 73 Duster using a clutch-less Lenco Transmission. Lenco & Jeffco are both here in San Diego. Screw air servo in (clockwise) until you see the rotary plate start to shift, now screw air servo Out (counter-clockwise) until the rotary shift plate stops moving. Each planetary gear set is in its own housing and carries a higher ratio. This will allow for free play in the shift system. It was probably in the 1,000 to 1,100 H.P. Remote air dump and auto reset. By then the "trans" is getting pretty long and as far as I know 6 speeds is the limit. Lenco trans rules. Air Shifter Kits & Accessories. Many cars with 1200hp or less will also find benefit in using 1st-over which will net a really nice 4spd spread of 1.76, 1.33, 1.00, 0.78. or 1.82, 1.41, 1.00, .78 . From what I remember there is some sort of clutch with each gear but I could be wrong about that. Double safe operation electronically and mechanically holds air to pot after upshift. This transmission is brand new, never run, never installed and will come in the original shipping box. Features: Allows RPM controlled upshift each at a different RPM. Follow. Really only use the clutch on the first gear just to engage it. Commonly mounted on the steering wheel of the race car or it can be mounted where the racer chooses. This kit provides an easy way to change your Lenco transmission into reverse. That's how they operate: Now let's take a look at the mechanics of it all. Lencodrive 3 Speed and Reverse | Lenco Lencodrive 3 Speed and Reverse Click Image for Gallery Lencodrive Transmissions 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. I took it out when I started racing the car more and changed to an automatic. Magnesium Tailhousing (Bushing or Roller Bearing) 300M 32-Spline Output Shaft. Magnesium Case. CS3 Tech Gear Ratios CS3 Works with most any ignition system that can provide a tach signal. Reply in reply to Ronnie speedyk a year ago Thank you for that! Listening to Frieburger talk about no one wanting to run a lenco anymore I feel like the lenco is being punished for no good reason. You only need the clutch to start from a stop. Jeffco started making "street" trans' & are a less expensive alternative to the Lenco. Trades Not Accepted . One lever per gear, as Seattle Mike stated. You get what you pay for. This shift button assm. Since 1980. Lenco shift pressure checking lever assm. Not many people have seen inside of these transmissions! 32 Spline Output Shaft Manual Shift with Low/Reverse Lever Ratio Unknown. This is a new and improved Lenco 3-speed transmission which uses a new 3D-printed master. One on the right handles first to second, one in the middle handles second to third, and the one on the left is in charge of the third to overdrive. How did the Three Levers work? Recesses in the top of the cases to fit separate CO2 pods. Ready to ship to its forever home in Ohio. They are an awesome piece, and well worth the money. LENCO ST1200 Street/Strip transmission. Joliet , IL. This 1,500 hp rated custom Hughes Performance 4L80 for 4x4's is an Extreme. This version is for CO2 shifting and not manual shifting levers. Each gear is engaged by. His dial-in time is 10.60 and his ET for this race was a 10.61. Each lever is responsible for changing the gears. Like mentioned, you can get as many gears as you want, they basically "add on". The individual levers dis-engage the clutch pack which shifts the unit from underdrive to direct. Simple to use when pulled up the racer can read how many pounds of pressure is being supplied to make a shift. 1,500 hp Rated. ~ Watch for the fluid in the hose to change color from the old fluid (iced tea or cola colored) to clear (if you're using synthetic) or a pale yellow. There is no engine braking with a lenco. B&J Big Boy 3 Speed. Keep in mind, I am no advocate for buying used up old racing parts. The gears can be set up in any direction, left to right or right to left. Now you can set different rpm points to trigger the shift solenoids. JEGS offers a wide selection of high-performance transmission air shifters from leading manufacturers such as Biondo, Dedenbear, Shifnoid, JEGS, and more.Each air shifter is backed by an industry-leading warranty so you can get the performance you want at . Exclusively V.A.R. Description. They really are simple to operate. However I imagine to have one custom fab'd to fit to the EJ blocks would be as . 3 runs taped inside and outside of the car in winterport maine winterport dragway If I read the rules correctly you pretty much get kicked . The American Powertrain Parting Shift: Ripping Gears On The Street In A Jeffco Equipped El Camino. You can expand to 3 or 4 speeds by addition of additional cases. Universal Lenco Mount Kit with slider tubes for 3, 4 or 5 speed Lenco Transmissions. Each unit is a planetary geared to underdrive about 1.37:1 If you want 4 speeds, they just bolt 3 units together which give you a first gear ratio of about 2.50 with all 4 units in underdrive. This highly efficient and unique transmission solution would be a real asset for drag racers. Most Lenco shifters are currently on back order, please call for availability. That's the primary reason these transmissions are shifted from front to back. 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. * All American-made, premium-quality materials. To install lever remove bolt, insert lever in shift tower so that it faces forward and install bolt. Products. And when they say pull a gear it means pull, the detents are set at about 35lbs ( before air shift a rookie topsportsman would pull the steering wheel to leverage against the sticks) all-in-all it isn't street friendly. David answers a few FAQ on CS-1 thru CS-4 Transmissions. The last section is reverse. A helper would be handy!). About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Planetary transmissions rely on a central sun gear to provide a 1:1 direct drive ratio once shifted from the launch ratio. Rebuilding the Lenco CS1 transmission in the 2500hp street car! . Universal kit will fit 3, 4, or 5 speed Lenco Transmissions. Unlike a typical street trans a Jerico does not disengage easily at high speed, but slides effortlessly into the next higher gear level without clutch disengaging. Owners of older ST1200 transmissions, also have a great opportunity to refine their transmissions with more reliable parts, ratios, and even new casing, since . Lenco & Jeffco are both here in San Diego. Adding or upgrading an air shifter is a great way to improve drag racing shift performance for your vehicle. When this same section is shifted the sprag then allows . Option #1 - LIBERTY'S MANUAL V-GATE STYLE SHIFTER Included in new transmission prices $1070.00 when sold individually Option #2 - AIR SHIFTER (PUSH BUTTON SHIFT) $975.00 when ordered as an option on a new transmission $1,975.00 when sold individually Option #3 - PISTOL GRIP PNEUMATIC. Owners of older ST1200 transmissions, also have a great opportunity to refine their transmissions with more reliable parts, ratios, and even new casing, since . a few years ago Lenco started making a "street" trans to compete with the Jefco. Lenco's don't really count as stick because they are basically an automatic with shift levers for each planetary gear set. MPN: Description. All ST1200 Street units now come with low drag bearings and a billet case. When the car is retired from the dragstrip, I will definately leave the Lenco in the car, to drive on the street. He designed the JEFFco to withstand the Pro Stock division of NHRA. Improvements include: Sharper overall detail. lenco transmission shifting 0 views Discover short videos related to lenco transmission shifting on TikTok. The Lencodrive comes as a 2 speed with reverse. Sections 3 and 4 contain 1 gear each, for 3rd and 4th gears. Also, on the Hypermaxx car, I run the shifter pressure higher (due to the car weight vs. tourque), between 190 and 195 psi. in Chevy. This scale used with part number #2630-0013 can help a racer fine tune there shift pressures in there racing transmission. 8204. The lenco has definately taken off at least a second in the quarter mile. Made from billet alum. More fastener detail. In order to achieve an underdrive first gear ratio the LENCO transmission relys on planet gears which rotate around the previously mentioned sun gear. A true "clutchless" trans, as mentioned above, includes spring loaded split sliders, and they don't stay engaged when releasing shift pressure except for high gear. I am going a different direction on my project so our long awaited (6 months) Lenco ST1200 4-speed is up for sale. The arm and housing are made from billet heat treated steel that has been black oxide coated and inside there is an alum. The 2 speed, including reverse, bellhousing and lining weighs approximately 108 lbs. Originally started by Top Fuel racer, Mike Strasburg at B&J Transmissions, it is now run by Steve Graves and family. 3D-printed CO2 pods. Each solenoid activation is programmed in 100 rpm increments. Any new EXTREME transmission is available set up for a Torque Converter Drive Unit at no extra charge. Comes with all hardware necessary. David answers a few FAQ on CS-1 thru CS-4 Transmissions. SERIOUS INQUIRES ONLY. Lenco will free wheel in 1:1 too, you don't shift into a gear with a lenco, you take it out. Here's a neat video showing a day in the life of a drag racer, more specifically a stick shift drag racer yanking handles on a Lenco transmission during a race at Eddyville, Iowa. I have since changed to a Lenco 5 speed with excellent results. This amazing video from Valvoline features Gray Motorsports and the teams' car chief, Hank, as he gives a great rundown of just how these transmissions work. a few years ago Lenco started making a "street" trans to compete with the Jefco. A Lenco's first gera is the multiplication of all the gears in each section with the high gear always 1 to 1. (909) 673-9080 I had a Lenco ST 1200 in my TTSBC Camaro. Enjoy the video :) SUBSCRIBE to see . The shift light will correctly activate (open) the air solenoid to initiate the shift, but the short duration of the shift light is not adequate to allow sufficient air to pass through the solenoid and shift the tranny. Description. Ready to ship to its forever home in Ohio. Posted 6 days ago. The car is a 1967 Firebird with a 427ci Chevy engine in it and a 5-speed Lenco CS2. This unit is simple to install on the transmission on the workbench or in the race car and allows the racer to fine tune there shift pressure or check the shift pressure on their racing transmission. 1. Lenco's transmissions can either be manually shifted or gas shifted with CO2. See the seller . This in-car shot video shows a. is the industry standard for B&J or Lenco CO 2 air shifted transmissions. Lenco's are modular 2 speed planetary transmissions. What this means in practice is you use the clutch pedal to engage first and reverse . This kit is easy to install but will require some fabricating and welding. Built in default delay circutry allows upshifting even if there is no RPM drop between shifts. . 4,596 Likes Received: 178 Look at a Lenco as being a manually shifted automatic transmission. SOLD. This is a complete Lenco transmission configured for 4-speeds with reverse. How sweet would it be to have a clutchless planetary tranny in the subaru! $5,688. CO2 shifting is accomplished by an air . Im a huge NHRA fan, so i was looking at the Lenco transmissions used most notably in the Pro Stock class and i found they have a "street/strip" version.
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