Description
TCI StreetFighter Transmissions 311100 – Professional Overview
The TCI StreetFighter 311100 is a 3-speed automatic transmission developed for performance-oriented street applications. It combines a remanufactured OEM-style aluminum case with TCI’s StreetFighter configuration, providing automatic driving functionality alongside manual gear-selection capability.
This model uses a BOP bellhousing bolt pattern, making the transmission relevant to compatible Buick, Oldsmobile, and Pontiac drivetrain configurations. It features a 30-spline input and a 2.52 first-gear ratio, providing a conventional three-speed arrangement for compatible performance vehicles.
The StreetFighter line is designed around the demands of street machines that require more performance-focused transmission characteristics than a basic stock replacement. The 311100 carries an advertised 575-horsepower rating and uses an automatic/manual valve body.
In automatic mode, the transmission retains automatic shifting for normal road use. In manual mode, the driver can select the gears directly, providing greater control over gear changes in performance driving situations.
Compatibility and Application Details
The TCI 311100 uses a BOP bellhousing pattern, which is a critical fitment consideration when selecting this transmission. Buyers should verify the vehicle’s bellhousing configuration, input spline requirements, tailshaft dimensions, driveshaft arrangement, and other drivetrain specifications before ordering.
The transmission has a 30-spline input and a 6.000-inch tailshaft. It uses a slip-on yoke and an OEM-style aluminum case. These dimensions and connection points should be compared with the existing transmission to ensure the replacement is appropriate for the intended application.
The 2.52 first-gear ratio provides the starting ratio for the three-speed transmission. Because the unit is not lockup compatible, buyers should also confirm that this characteristic matches the requirements of the vehicle and drivetrain.
The transmission is supplied without a speedometer driven gear or its housing. If replacing the same model, the existing components may be reused. Otherwise, the appropriate speedometer components must be sourced separately.
Construction and Performance Features
The 311100 is a remanufactured transmission built around an OEM-style aluminum case with a black finish. Its stock-style steel transmission pan features a chrome finish, providing a durable and finished exterior configuration.
The StreetFighter design incorporates a tested automatic/manual valve body. This allows the transmission to function as an automatic during normal driving while also providing manual gear selection when the driver wants direct control of the shifting sequence.
TCI StreetFighter transmissions are designed for demanding street-machine use and are engineered around positive, responsive gear changes. In manual selection, the transmission is designed to shift when the driver moves the selector rather than relying on normal automatic shift timing.
The combination of the 575-horsepower advertised rating, 30-spline input, 2.52 first gear, and automatic/manual functionality makes the 311100 a performance-oriented choice within the StreetFighter range.
Why This Transmission Is a Practical Choice
The TCI 311100 offers a useful balance between street drivability and performance control. Unlike a transmission designed exclusively for manual racing operation, its automatic/manual valve body allows the driver to retain automatic operation when desired.
This makes it particularly relevant to street machines that see normal road use but may also be driven more aggressively. The ability to manually select gears gives the driver additional control without requiring a fully manual-only transmission.
Its remanufactured construction also makes it a practical alternative for buyers seeking a replacement performance transmission rather than an unverified used unit.
For buyers comparing products within the automatic transmissions category, the 311100 should be evaluated alongside other TCI StreetFighter and performance automatic transmissions based on bellhousing pattern, horsepower rating, tailshaft length, input spline count, and valve body configuration.
Who This Transmission Is Best For
The TCI StreetFighter 311100 is best suited to performance-oriented street-car owners and builders whose vehicles match its BOP bellhousing configuration and other drivetrain specifications.
It is particularly relevant for:
- Street-machine applications
- Compatible Buick, Oldsmobile, and Pontiac drivetrains
- Performance builds requiring a 3-speed automatic
- Buyers seeking an automatic/manual transmission
- Vehicles requiring a 30-spline input
- Applications compatible with a 6.000-inch tailshaft
- Drivers who want automatic convenience with manual gear-selection capability
It should not be treated as a universal replacement. The transmission’s BOP bellhousing pattern, non-lockup design, input spline count, tailshaft length, and speedometer configuration should be confirmed before purchase.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | TCI Auto |
| Manufacturer Part Number | 311100 |
| Part Type | Automatic Transmission |
| Product Line | TCI StreetFighter Transmissions |
| Summit Racing Part Number | TCI-311100 |
| UPC | 788120006033 |
| Number of Gears | 3 |
| Bellhousing Bolt Pattern | BOP |
| Shift Pattern | Forward |
| Valve Body Style | Automatic/Manual |
| Advertised Horsepower Rating | 575 hp |
| Torque Converter Included | No |
| Flexplate Included | No |
| Transmission Controller Included | No |
| Wiring Harness Included | No |
| Transmission Cooler Included | No |
| Trans-Brake Included | No |
| Lockup Compatible | No |
| Transmission Pan Style | Stock |
| Pan Material | Steel |
| Pan Finish | Chrome |
| Tailshaft Length | 6.000 in. |
| Yoke Style | Slip-on |
| Input Spline Quantity | 30 |
| First Gear Ratio | 2.52 |
| Transmission Case Style | OEM |
| Case Material | Aluminum |
| Case Finish | Black |
| Transmission Shield Built In | No |
| Flexplate Shield Built In | No |
| Fluid Fill Location | Case |
| Transmission Fluid Included | No |
| Dipstick Included | No |
| Remanufactured | Yes |
| Quantity | Sold individually |
| Speedometer Gear | Not included |
| Speedometer Gear Housing | Not included |
Ordering and Fitment Support
Selecting the correct performance transmission requires careful attention to the complete drivetrain configuration. For the TCI 311100, the BOP bellhousing pattern, 30-spline input, 6.000-inch tailshaft, slip-on yoke, and non-lockup configuration are among the most important specifications to verify.
The transmission does not include a torque converter, flexplate, controller, wiring harness, cooler, fluid, or dipstick. Buyers should account for these components when planning an installation.
The speedometer driven gear and its housing are also not included. Existing components can be reused when replacing the same model, while different applications may require separately sourced speedometer components.
For customers comparing this transmission with other TCI StreetFighter transmissions, related performance automatic transmissions can be evaluated according to horsepower capacity, transmission configuration, fitment, and intended driving application.
Frequently Asked Questions
What type of transmission is the TCI 311100?
The TCI 311100 is a 3-speed remanufactured automatic transmission from the TCI StreetFighter product line. It uses an automatic/manual valve body, allowing compatible vehicles to operate automatically or use manual gear selection when desired.
What vehicles is the TCI 311100 designed for?
The transmission uses a BOP bellhousing bolt pattern, making it suitable for compatible Buick, Oldsmobile, and Pontiac drivetrain applications. Exact fitment should be verified using the vehicle’s existing bellhousing, input spline, tailshaft, yoke, and other drivetrain specifications.
What is the horsepower rating of the TCI StreetFighter 311100?
The TCI 311100 has an advertised horsepower rating of 575 hp. This figure identifies the manufacturer’s stated performance rating and should be considered alongside the vehicle’s engine output, intended use, drivetrain configuration, and overall application requirements.
Does the TCI 311100 include a torque converter?
No. The torque converter is not included with this transmission. Buyers should select a compatible torque converter separately based on the engine, transmission configuration, vehicle application, and intended driving characteristics.
Can the TCI 311100 be shifted manually?
Yes. The transmission uses an automatic/manual valve body, allowing manual gear selection in addition to normal automatic operation. This makes it suitable for street applications where the driver wants automatic convenience but also wants greater control over gear changes.
What is the tailshaft length of the TCI 311100?
The TCI 311100 has a 6.000-inch tailshaft and uses a slip-on yoke. These dimensions are important for driveshaft and vehicle fitment, so they should be compared with the specifications of the transmission being replaced before ordering.
Does the TCI 311100 include the speedometer gear?
No. The transmission is shipped without the speedometer driven gear or its housing. When replacing the same model, the existing components may be reused. If the application differs, the appropriate speedometer components must be purchased separately.
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