EV TorqueBox® - EV Transmission Adapter | Torque Trends Inc. (2024)

CASCADIA iM-225 MOTOR +
TTI TORQUEBOX®
for compact high performance electric conversions

EV TORQUEBOX® SUB-ASSEMBLIES

1. Input Housing Assembly Components

See Also

The Best Cars and Trucks to Convert to Electric Vehicles

2. Carrier Housing Assembly Components

3. Planetary System Components

4. Tail Housing

"TorqueBox® Sub-Assemblies from Torque Trends Inc. - The Future of Electric Vehicle Gearbox Manufacturing"

LATEST DEVELOPMENT PROJECTS

"Experience the Power of Torque Vectoring"

Dual but separate gearboxes in one TorqueBox® housing. This TorqueBox® accepts dual motors and with separate inverters allows torque vectoring.

​

Can be used as a front or rear drive unit, with a differential; or without differential for torque vectoring. Can also be set sideways in the vehicle (mid-mount) for torque vectoring of front and rear drive axles.

Accepts the Torque Trends designed ParkLock System. Only one per vehicle is needed.

Benefit: With an eight inch diameter the planetary based TorqueBox®in 1.58, 1.90 and 3.00 to 1 ratios fits into tight places and most automotive transmission tunnels. The TorqueBox® is also 1/3 to 1/2 of the transmission weight it is replacing, reducing overall weight is good for range and makes installation easy.

Benefit: The input shaft is designed (material and design) to allow up to 15 degrees of flex, both directions of rotation, without damage, this reduces the chance of fracture due to highspike torque loads. This means you can place our HDTorqueBox® behind up to 1250 lb ft of torque without concern.

Benefit: We use only high quality bearings and micro-shot-penned EN-36 gears to assure continued high rpm (up to 20,000rpm) use in our 3.00 to1, our 1.58 and 1.90 ratio have bearing and gear upgrades for motors above 10,000rpm.

Benefit: We use only 100% full synthetic ATF fluid and directed splash lubrication in all planetary based TorqueBox® units. This allows both high and low temperature lubricationand something called misting, which is crucial for full rotating mass lubrication. Our Torque Vectoring Dual Motor TorqueBox® use full synthetic 75W90 gear oil.

EV Reduction Gearbox by Torque Trends Inc.

What you need to know (For all your EV Applications)

​Conventional transmissions, manual or automatic are designed for internal combustion engines. The multiple gear ratios and ratio spreads work well with the RPM sensitive nature of small gas and diesel engines. For many years, these conventional transmissions were primarily three and four forward speed units and in automatic, of course, incorporated a neutral, park and reverse mode as well. Over the last two decades the number of forward speeds has continued to increase in an attempt to squeeze more efficiency out of a less than efficient engine design. As the number of forward speeds has increased (now up to ten forward ratios), the size and weight has also increased, and here is the PAIN! Electric car conversions are very weight sensitive and space is always at a premium.

EV TORQUEBOX®

Standard TorqueBox® with Fixed Yoke and Optional ParkLock System

Standard TorqueBox® with Optional Cast or Billet Slip Yokes

TorqueBox® Extreme Duty Reduction Gearbox
Available Upon Request

"Torque Tough TorqueBox® Components from Torque Trends Inc. - Tail Housing Mounts, Yokes, and Parklock Sections."

"Torquebox® Adapter Plates to Fit Popular Electric Motors"

Adapter plates are used to join the electric motor and the TorqueTrends brand reduction gearbox. Either a custom input shaft is created for the EV transmission adapter, or we use our standard input shaft and a splined coupler to lock the motor's output shaft to the gearbox planetary gearset. Typically, a motor with an internally splined motor shaft gets a custom-built input in the EV TorqueBox® and a motor with an externally splined motor shaft gets our splined coupler and standard input shaft.

Motors the 1.90 & 3.00
EV TorqueBox® Fits:

In Development:

Two-speed TorqueBox®