Shop Vehicles FAQ. Online Payments. All Rights Reserved. Built with Volusion. Now available is the 10L90 floor mount tap shifter!Where to buy rock salt near me
Similar in basic function to our popular 6L80 floor mount tap shifter, this new unit controls tap shifting in a separate gate instead of a switch on the knob. Slide the shifter over to the left from drive and you're in the tap shift gate. Just nudge the shifter forward to upshift, and nudge back to downshift. Slide the shifter over to the right, and normal automatic gear changes will resume.
This shifter comes with the shifter cable, the cable bracket which mounts to the transmission, the shifter cable to gear selector lever, 2 bolts for the cable securing tabs, wiring pigtail, and the shifter knob with boot.
Our 10L90 tap shift relay module is required for use of tap shift functions and is included. Take full control of your 8L90's up shifts and down shifts with our in-house modified tap shift shifter!
Includes the cable and brackets. The shifter cable length is approximately 57 inches. Available in black or tan. Add pigtail? Select "Yes" if you're not using a Speartech powertrain harness. Looking for a shifter for your 8L90 transmission? Check out ours here! This shifter is unlike others you will find online, trying to duplicate our setup. Only our in-house developed assembly offers the correct brackets for proper cable alignment during swap use, and when coupled with our in-house TCM programming, you are left with a properly functioning package ready to work for you!
We have finally developed a solution to enable the tap shift and reverse light function when using an 8L90E or 10L90E in your swap project!
8L90 Performance Master Kit with Raybestos GPZ Clutches and Bonded Pistons
The CAN relay is included with our 10L floor mount tap shifter. Tap Shift is enabled when you shift into manual mode Mwhich is one gear below drive D. To exit manual mode, simply shift back up into drive and the transmission will resort back to regular automatic shifting conditions.
Tap Shift will still function in DRIVE mode with non Corvette based tunes, but will time out after approximately 8 seconds of inactivity, and resume back to automatic gear changes.
Comes with an instruction sheet for easy installation. We have finally developed a solution to enable the reverse light function when using an 8L90E in your swap project!The row-your-own-gears crowd will always think that they're better drivers, but at least stab-and-steer boys needn't suffer from gear envy anymore. In Camaros and Corvettes of just one generation ago, the term "six-speed" distinguished a manually shifted machine from an automatic, but that's not the case anymore.
With the introduction of the 6L80E in the '06 Corvette, the gear tally is all tied up at six for both manual- and automatic-equipped GM performance machines alike. That means automatics can now run just as quickly as their clutched stablemates down the dragstrip in stock trim, and outright destroy them once a higher-stall torque converter is thrown into the mix.Esp32 board
However, as with any piece of hardware that's brand new from the ground up, hot rodders were destined to blow them to bits with prodigious doses of LS horsepower before the aftermarket had a chance to catch up with stronger internals. Fortunately, thanks to companies like Circle D Transmission, the wait for near-bulletproof 6L80E automatics is over.
Circle D has been beefing up GM's new six-speed since they first hit the streets, and we recently visited its shop to find out what it takes to prep a 6L80E for battle. In GM speak, the "6" in 6L80E denotes the number of forward speeds, while the "80" is an arbitrary figure that represents its strength. Not surprisingly, GM's new six-speed is reserved for only the most demanding applications such as fifth-gen Camaros, C6 Corvettes, and heavy-duty trucks and SUVs.
With fifth-gens weighing in at a portly 4, pounds, an extra two speeds make it easier to get all that mass moving off the line while still keeping the motor in the fat part of the powerband at WOT. With a ridiculously low 4.
The 4L80E is more proven because it has been around much longer and more parts are available for it, but the 6L80E has come a long way and they can handle tons of power with a few basic upgrades. According to Circle D, GM rates the 6L80E's capacity at rear-wheel hp and it often burns up clutches once exceeding the hp mark.
It certainly doesn't help that this transmission tends to run very hot, which Circle D rectifies on its shop car with two in-line trans coolers. The next component most prone to failure is the spline area of the hub where it engages into the output carrier," says Kyle. They feature custom nitrided steels to prevent warping, and more durable clutch linings that are more resistant to heat.
Another major departure from past GM transmissions is that the 6L80E has no bands-just clutches-and relies heavily on electronics for all aspects of operation. By eliminating the bands, GM reduced the number of torque-handling components inside the transmission while also improving shift quality.
The downside is that the timing of clutch engagement and disengagement, as well as clearances, must be very precise in order to prevent internal damage. Even at stock horsepower levels, Circle D reports that properly tuning the 6L80E is critical to transmission longevity.Live video streaming sites
That's where the electronics and tuning come into play," explains Kyle. It houses all the pressure control solenoids, shift solenoids, and the transmission control module in one sealed unit. There are tons of electronic adjustments that can be made to alter clutch pressures and apply times for durability.
The factory tune is good until you start putting more power through the trans. Once that happens, the clutches start slipping on initial apply, which messes up the timing. Depending on a customer's needs, we can modify the transmission control module so it's custom tailored to a specific application using HP Tuners software.
In addition to walking us through the rebuild process, co-owner David Dolejsi and Senior Technician Kyle House of Circle D gave us a sneak peek at some prototype hardware that is currently in the works to further fortify GM's six-speed.
Co-owner Sherry Dolejsi was very careful to say that while they won't call their improvements bulletproof, Circle D is constantly making modifications to its procedures and looking to make certain areas of the transmission stronger.
As we strengthen one component we find the next weak link. The potential for this transmission is amazing, but there are growing pains.
Take a look at this supercharged Chevrolet Camaro. Rear horsepower marks in at horsepower. James Newsome searched for this gorgeous Chevrolet Camaro to build as a promotional vehicle for his company, Cold Air Inductions.8L90 Trans Tuning - Quick, Shift Point Changes
A Chevrolet Camaro gets a few upgrades. A frameless mirror, and a MyLink system.The 8L90E is an 8 speed automatic transmission developed by General Motors and introduced for the Model year. It is an incredibly advanced transmission and has the technology to perform at a high level in the Corvette, while at the same time being cost effective enough to use in high volume production.
The addition of two extra gears over the previous generation 6L80 was necessary to meet ever tightening Federal fuel economy laws. Like most GM automatic transmissions that have come before it, the 8L90E has an aluminum case, overdrive, and can handle a lot of power.
Through a combination of lightweight materials and wizardry, GM engineers were able to get the 8L90 to weigh in a couple of pounds less than the 6L80E, and keep it roughly the same size. Or use this link to take you there. The 8L90 has four different gears sets and five clutches. This allows for extremely tight shifts in a relatively small space.
The 8L90 offers a true manual paddle shifting experience. And unlike the the Corvettes rivals at Porsche and Ferrari, the 8L90 also goes to work in pickup trucks.
19417580 - 8L90E 8-Speed Automatic Transmission Package for GM LT4 Engines
Thats a lot of range to engineer into one transmission. There are a few minor differences between the standard version and the LT1. The easiest way to determine if your vehicle is equipped with an 8L90 is to utilize the RP0 codes. They can be found in the glove compartment of the vehicle in question. That is proof positive that the vehicle in question was at a minimum equipped with the 8L90 from the factory.
Since the 8L90 has only been available for a few model years production started in for the model year. It is not utilized in many vehicles.
It is only used in high performance vehicles and performance cars, otherwise the 8L45 is more than enough for the job. Max Torque is increased to lb-ft Gear ratios stay the same LT1 uses a slip yoke design LT4 uses a fixed yolk design Identifying an 8L90E The easiest way to determine if your vehicle is equipped with an 8L90 is to utilize the RP0 codes.
Production Years.I am in the middle of a transmission rebuild and thought to myself, "Hey, maybe some others out there in Oppoland will find some of this interesting or useful".
So here goes! Automatic transmissions are an engineering marvel really. Even to the most savvy mechanic; the complexity of an auto transmission and how it operates can be hard to get a grasp on. I am NOT going to explain how one works. There are plenty of resources on the web that can do a better job than I can at that. But I will throw out some information that anyone can understand regarding what it takes to be able to handle more horsepower through your transmission.
To make sure you can follow me, I will throw out a few basic explanations so even if you know ZERO about a transmission this will make sense to you. Your flywheel, or called a flexplate on an automatic transmission, is spun by our crankshaft. The flexplate is connected to a torque converter. Think of the torque converter as the clutch in a manual transmission. It is what couples the motor to the transmission. Technically, its a fluid coupler.
It uses fluid pressure to engage or slip. The torque converter is connected to the transmission via the input shaft. Inside is where all the magical unicorns live. Pretty basic stuff so far. Im sure you all knew that already. So what then, can be improved upon to make a transmission handle more power than it is configured in its OEM state?
There are 3 basic areas that really comprise the majority of how much a transmission can handle. And its way more easy to grasp than you would think. Inside the transmission reside many clutches and "steels" inside drums.
They function like a "clutch" in a manual transmission in that their job is to make contact with the next component and not slip from that position of initial impact. Just like a manual clutch, automatic clutches CAN and do slip.
As you can imagine, this is bad, just like it is for a manual transmission. It can take as little as a few good slips for the clutch material to burn off and its done for good.Chevrolet Performance has adapted the production-based 8LE eight speed automatic transmission for use with the LT1 and LT4 crate engines. A numerically high 4. Two version are available: a slipe-yoke design to be used with the LT1 engine and a fixed-yoke design to be used with the LT4 engine Use with LT1 crate engines wet sump or dry sump Must be used with compatible engine controller.
Package Dimensions: W Shipping Note: This item will require a special quote for shipping charges. We are operating on a skeleton crew in the warehouse but have started shipping orders again. Orders will be processed as soon as possible. Thank you for your understanding.
Please contact us to confirm correct vehicle fitment and usage. SKU: Customize Your Item. Select one option below. Qty :. Free Shipping! Add to Cart Add to Wishlist. Four gearsets for greater efficiency Five clutches - two brake clutches and three rotating clutches World-class upshift speeds Friction-reducing features include synthetic fluid Gear ratios: 1st: 4. Application List Universal. You must login to post a review. May We Suggest. Need Assistance?
Have a Question Email us and we'll get back to you within 24 hours. Password Forgot Password? FAQ Check out popular questions. Contact Us We'll reply within 24 hours. New Customer Forgot Password.Chevrolet Performance has adapted the production-based 8LE eight speed automatic transmission for use with the LT1 and LT4 crate engines. A numerically high 4.
Two version are available: a slipe-yoke design to be used with the LT1 engine and a slip-yoke design to be used with the LT4 engine Use with LT4 crate engines wet sump or dry sump Must be used with compatible engine controller. Package Dimensions: W Shipping Note: This item will require a special quote for shipping charges. We are operating on a skeleton crew in the warehouse but have started shipping orders again. Orders will be processed as soon as possible.
Thank you for your understanding. Please contact us to confirm correct vehicle fitment and usage. SKU: Customize Your Item. Select one option below. Qty :. Free Shipping! Add to Cart Add to Wishlist. Four gearsets for greater efficiency Five clutches - two brake clutches and three rotating clutches World-class upshift speeds Friction-reducing features include synthetic fluid Gear ratios: 1st: 4. Application List Universal.
You must login to post a review. May We Suggest.Kac upper
No Image Available. LT4 6. Need Assistance? Have a Question Email us and we'll get back to you within 24 hours.The 8L90 is an eight-speed automatic transmission built by General Motors Company.
It is designed for use in longitudinal engine applications either attached to the front-located engine  with a standard bell housing or in the rear of the car adjacent to the differential as in the Corvette. It is a hydraulic hydramatic design.
GM also produces a similar design with the smaller 8L The 8L90 is the subject of a class-action lawsuit filed in December that alleges the transmission suffers from persistent "shudder" issues and that GM has known about the problems since its introduction and has failed to provide a solution, instead choosing to wait until the unit is out of warranty.
From Wikipedia, the free encyclopedia. Retrieved 15 July Retrieved 2 February General Motors. Archived from the original on 22 December Retrieved 21 August Retrieved 12 August Retrieved 9 April Retrieved 25 January Retrieved 18 June Part of the Automobile series. Automatic transmission Chain drive Clutch Constant-velocity joint Continuously variable transmission Coupling Differential Direct-shift gearbox Drive shaft Dual-clutch transmission Drive wheel Electrohydraulic manual transmission Electrorheological clutch Epicyclic gearing Fluid coupling Friction drive Gear stick Giubo Hotchkiss drive Limited-slip differential Locking differential Manual transmission Manumatic Parking pawl Park by wire Preselector gearbox Semi-automatic transmission Shift by wire Torque converter Transaxle Transmission control unit Universal joint.
Electric motor Hybrid vehicle drivetrain Electric generator Alternator. Portal Category. Categories : Automatic transmission tradenames General Motors transmissions Automotive part stubs. Hidden categories: All stub articles. Namespaces Article Talk. Views Read Edit View history. Languages Add links.Mod mlive 89
Chevrolet Corvette C7 Stingray . Chevrolet Corvette C7 Z06 . This article about an automotive part or component is a stub. You can help Wikipedia by expanding it.
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