Sequential Gearbox


Sequential transmissions are commonly found on motorbikes, where the action of selecting gear is limited to the next higher or lower gear; selecting a specific gear, as is possible in an H-pattern gearbox, is not possible in a sequential transmission.

  • As examples can be mentioned design of Subaru +Plus (2018) sequential gearbox, Mitsubishi EVO STRONG (2019) sequential gearbox and some other products. As a huge progress we consider overall grow of the company in terms of new machines and highly qualified employees to be able to cover higher production requirements.
  • HGT 6 Speed Sequential Transmissions engineered for Motorsports Road Racing, Time Attack, Hill Climb, Roll Racing, Street Performance, Transam and Sports Sedans.
  • Using the standard Subaru STI 6 speed gearbox housing, the sequential kit is designed for the racer looking to have the fastest shifting sequential gearbox and keeping budget in mind. Kit is supplied in assembly position for easy installation into the gearbox. Complete, ready to install gearboxes.
  • With straight-cut gears, large teeth and made of strong steel as well as a light-weight casing, the TTI GTO sequential gearbox is designed to perform. As a result, these New Zealand-designed and manufactured sequential gearboxes are popular amongst club racers, drifters and high-end race cars worldwide – especially in Asia, Australia and Russia.

The most race cars use sequential gearboxes as well. A sequential gearbox offers the motive force several important benefits which are very beneficial in a race car. Here you can get how sequential manual transmission works and why this form of transmission is now performing on such a lot of high-performance vehicles.

Sequential Gearbox

If you have ever ridden a motorcycle, you know that the manual transmission in a motorcycle is nothing like this. On a motorcycle, you shift gears by clicking a lever up or down with your toe. It is a much faster way to shift. This type of transmission is called a sequential gearbox or a sequential manual transmission.

A type of transmission that allows for manual gear selection, though the gears must be selected in order, as it will not allow for skipping gears like a traditional manual. The method of switching gears is unique to this transmission type, where a selector shaft is used to upshift or downshift.

Sequential Gearbox Working

­How Manual Transmissions Work offers a basic understanding of the mechanisms inner a manual transmission. The five-velocity guide transmission within reason fashionable on vehicles today. It seems some thing like this internally:

There are 3 forks managed with the aid of using 3 rods which can be engaged with the aid of using the shift lever. Looking at the shift rods from the top, they appear like this in neutral, rev­erse, first and second gear: The “H” sample lets in you to transport the shift rod among the control rods for the 3 forks and circulate the rods returned and forth.

A sequential manual transmission works the same way. There remains a fixed of tools selector forks that flow collars that have interaction gears. The only difference is the way the manage rods are manipulated. The “H” sample is removed and changed with a different motion.

What these motions are doing is rotating a ratcheting drum. The drum looks like this: You can see that there are grooves cut into the drum. These grooves can do one of two things:

  • If the drum is placed away from the transmission’s gears, the grooves control standard control rods.
  • If the drum is located next to the gears, the grooves at once pass the tools selector fork, and no manipulate rods are needed. This appears to be the extra common approach as it has fewer elements and is extra compact.

There is no skipping, for example, from first gear to third. You must always go through second gear to get to third gear. It is the same when downshifting. The advantage of this system is that shifting mistakes are impossible. You always go to the next gear.

Advantages of Sequential Gearbox

  • The sequential shift is quicker. For example, to move from second to third gear on the “H” sample, you need to push the lever up, over and up again. That takes time. On a sequential gearbox, you actually push the lever up for each gear change.
  • The sequential shift is consistent. You do now no longer should think, “Let’s see, I’m in second gear so I should pass up-over-as much as get to third.” You
    actually push the lever forward — it is the equal movement for each tools.
  • The hand area is consistent. With the “H” sample, the area of the shift lever changes, so that you should consider wherein to position your hand relying on which tools you’re in. With a sequential gearbox, the shift lever is continually withinside the equal location for the following shift.
  • The sequential shift has no surprises. If you mis-shift with the “H” sample in a race (for example, down-moving to second while you intended to visit 4th), it’s far viable to explode the engine. That can in no way happen with a sequential gearbox.
  • The other advantage is that the sequential shift lever takes up less space in the race car cockpit. You only need space for the forward/backward motion of the lever, not left/right.

Difference Between A Sequential And Dual-Clutch Gearboxs

Sequential and dual-clutch gearboxes each let you manually select gears with out a clutch pedal, however that does not imply they are the same. This video from components provider FCP Euro explains the differences between these types of transmission.

In addition to promoting components, FCP Euro has a race crew that ran the Volkswagen GTI TCR for 2 seasons. That supplied a great possibility for a gearbox
comparison, because the TCR race motors began out out with a changed model of VW’s Direct Shift Gearbox (DSG) dual-clutch transmission utilized in the GTI road car, however have been later upgraded with Sadev sequential transmissions.

The sequential gearbox has all of its gears lined up on one input shaft, and they engage the output shaft using dogs. That allows for no-lift shifts, but also requires the use of a rotating barrel instead of shift gates. This transmission also allows for equal-length axles, helping to control torque steer in the front-wheel drive GTI TCR race car. FCP Euro reckons it’s about 100 pounds lighter than the DSG, too.

Overall, the main difference between a sequential and dual-clutch transmission is that one is designed for racing, and one isn’t. VW’s DSG transmission shifts fast, however it is also designed to be clean and quiet. Sequential gearboxes are loud, and require considerable pressure to interact gears. The Sadev gearbox’s light-weight flywheel and tiny clutch additionally make it quite an awful lot vain for low-velocity driving. But none of that subjects in a race car, wherein it is all approximately getting the energy to the floor as fast and correctly as possible. For that job, a sequential gearbox is the higher choice.

Sequential Gearbox FAQ

What does a sequential gearbox do?

A sequential gearbox is used along side a guide transmission (specifically, a sequential guide transmission) to permit for faster shifts. However, with a sequential gearbox, drivers can most effective shift up or right all the way down to the subsequent progression — or subsequent withinside the sequence — gear.

How do you shift a sequential transmission?

Sequential gearboxes are simple. You just push upward to shift to the next gear or down to shift to the previous gear.

Do you need a clutch for sequential gearbox?

Best used suv under 3000. Since there is a selector shaft, the need for a clutch is non existent, except for selecting first gear. … Because you have to go in order with a sequential transmission, you can’t ever drop into the wrong gear or destroy the engine or transmission from over revving.

Can I skip gears when shifting?

Engineering Explained tackled the common practice in its modern episode and the quick solution is yes, it is flawlessly OK to bypass gears whilst upshifting or downshifting. … If you shift from 1/3 to fifth gear and allow the take hold of out on the identical velocity as normal, the automobile will jerk because it works to settle the unbalance.

Which gearbox is used in two wheeler?

Most manual transmission two-wheelers use a sequential gearbox. Most motorcycles (except scooters) change gears (of which they increasingly have five or six) by a foot-shift lever.

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Delivered anywhere in the USA FREE, 100% RACE READY!

6XD Modular Design Advantages

The 6XD Sequential Gearbox has what NO OTHER sequential Offers! 250+ ratios, replaceable dog-rings vs gears, independent shifter barrels, rotatable forks, (12) inputs, 6XD can be rotate 90* for lower crank centerline to the ground!

Sequential gearbox conversion kit

6XD Simplicity of Service

Swapping out drop-gears for longer-shorter overall stack in 8-10 minutes! Replaceable dog-rings/sliders in 15-20 minutes, rotating shift handle for exact location YOU want!

6XD Low Cost in Stock Items

6XD is designed, engineered to have DOUBLE the life & STRENGTH regarding internal wear parts such as forks, shifter barrels, and gear sets! Clients mentioned they have saved thousands of dollars already.

100% American Made - In House

6XD sequential components are 100% made in USA between SS mfg and Gforce transmissions, this allows us to also make custom items quickly for YOU and make changes to current parts which may benefit your special application!

6XD built by Senior Lead Builder w/30+ years Winning Experience

RTS/Rick Lamber, he has built a significant amount of award winning race transmissions over the years. Every unit runs on dyno spin-rig for 45 minutes ensuring top performance for plug n play installs.

Award Winning Customer Service & Installation Assistance

We’re 100% committed making sure YOU are taken care of with experienced guidance, assembling everything needed for a Plug n Play package! YOUR one stop shop for SUCCESS!

6 speed sequential gearbox

Our 6XD Sequential Gearbox.

Went from drawings on paper to actual production racing product in 11 months! Unheard of right?, not really when you combine the proven experience of Gforce Transmissions, RTS INC and SS mfg engineer Clay Stephens working together to deliver winning results!
1st Year = * Not One Failure Ever / 31 wins / 5 Championships *

* The next racing product on our design board is a 6XD-TransAxle unit for C5, C6, and C7 corvette. This project is already underway, big thanks to Brett Bradbury owner of LS PERFORMANCE in Dallas, TX for sending us his Corvettes.

* This NEW 6XD-TransAxle will mate up to the RTS1000+ Winters quick change rear, which has proven to be “Unbreakable” past 3 years in the Formula Drift Pro series, with 1400ftlbs beat thru it.

* We are planning to have this 6XD-TransAxle project available in spring of 2021!

* 6XD AWD sequential gearbox is being looked at for late 2021!

* Email us with your ideas for new racing projects, we make dreams a reality!

Our 6XD Team has an Impressive Winning Resume to prove it:

“100+ Wins, 9 World Championships regarding C.A.R.T, IndyCar, NASCAR, World Drift Championship, Formula Drift, and now the Trans-Am Series!

Sequential Gearbox

ACP Motorsports / Trans-Am Series / 6 Wins 2019 = 5XD!

Sequential Gearbox Subaru Sti

“The 5XD sequential gearbox is the smoothest shifting, most reliable, and trouble free racing transmission I have ever had in any race car I’ve driven in 50 years. The customer service I have experienced regarding RTS INC owner Rick Lamber / SS mfg owners Clay Stephens & Skyler Schipper has been unmatched by any other driveline supplier ever!”

Kerry Hitt

FD Pro1 Series

“It really is the World’s BEST sequential I ever used, the 6XD is truly Insane, thank you!

I’m so glad to have RTS INC and SS mfg apart of our racing program”

Cameron Moore
Pro1 Driver

FD Pro2 Series / 5 Wins & Lone Star Drift Championship 2019

“The 6XD gearbox has been such a drastic improvement to our car this season!

The box has taken any and all abuse we could’ve thrown at it. It’s been used in more than 15 high intensity drift events this season and the reliability has been impeccable!

The support of the RTS INC / SS mfg team has been amazing and they’ve developed one incredible product!!!””

Nick Noback
Pro2 Driver

Rick Lamber 714-290-5276

Sequential Gearbox

703B Mooresville Road, Kannapolis, NC 28081

Sequential Gearbox Subaru

Clay Stephens 770-317-8121

703B Mooresville Road, Kannapolis, NC 28081