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74mm Electronic Throttle Body Kit. Porsche 911 with Carrera 3.2ltr Inlet Manifold 1974-89 › AMS905022
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
This Adapt Motorsport drive-by-wire kit equips a classic Porsche 911 Carrera 3.2 intake manifold with a Bosch 74mm electronic throttle body. It replaces the standard 63mm mechanical arrangement and is supplied with a choice of small or large K&N air filter.
Fits
- 911 1974–1977 2.7L / 1976–77 3.0 Carrera
- 911 1978–1983 3.0L / SC
- 911 1984–1986 3.2L
- 911 1987–1989 3.2L G50
Installation requires a Carrera 3.2 intake manifold together with compatible electronic throttle control and engine management. Check fitment for your specific vehicle, model year, engine and conversion specification before ordering.
What This Product Does
The kit converts the Carrera 3.2 intake manifold from a mechanically operated throttle body to electronic drive-by-wire control. Its larger throttle diameter supports increased airflow, while a suitable ECU can manage throttle sensitivity, idle control and other electronic throttle functions.
Functions
- Provides electronic control of the engine throttle.
- Increases throttle-body diameter from 63mm to 74mm.
- Allows ECU-based throttle sensitivity calibration.
- Supports electronic idle control without separate bypass hoses or an idle-air valve.
- Removes the original throttle linkage, bellcrank and associated bushes.
- Provides vacuum connections for a fuel-pressure regulator and compatible accessories.
Technical Details
- Bosch 74mm electronic throttle body.
- Tapered adapter plate matched to the original Carrera 3.2 manifold port.
- O-ring sealing on both sides of the adapter plate.
- Precision-machined, bead-blasted and clear-anodised air-filter adapter.
- Includes fasteners, electrical connector kit, vacuum fittings, vacuum hose and filter-adapter hardware.
- Supplied with either a small or large K&N air filter; Adapt Motorsport recommends the small filter for street engines below 3.6 litres.
Why Replacement Matters
This conversion removes mechanical linkage drag and simplifies the intake installation while enabling programmable throttle behaviour through a compatible ECU. Depending on the selected engine-management system and calibration, electronic throttle control may also support functions such as torque management, traction control and cruise control.
Installation Notes
The throttle body must be installed and calibrated by an experienced person. Appropriate ECU safety strategies must be configured, and the conversion will require a compatible electronic accelerator pedal and engine-management system. Additional intake pipework may be fabricated if the air filter is to be positioned away from the throttle body.
Kit Contents
- Bosch 74mm throttle body.
- Tapered adapter plate with O-rings and vacuum fittings.
- Air-filter adapter with O-ring and fasteners.
- Small or large K&N air filter, according to the selected kit.
- Electrical connector kit, vacuum hose and installation fasteners.
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