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- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Adapt Motorsport E-Throttle drive-by-wire conversion kit for Porsche 964 and non-VarioRam 993 intake manifolds. It replaces the original Porsche throttle centre section with a Bosch 74mm electronic throttle, CNC-machined aluminium parts and combined Bosch T-MAP sensing.
Fits:
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C2 1994-95
- Porsche 993 (911) C4 1994-95
- Porsche 993 (911) C2S 1994-95
- Porsche 993 (911) C4S 1994-95
What This Product Does
The conversion removes the original throttle centre section and the associated mechanical linkage or cable arrangement. A compatible aftermarket ECU can operate the electronic throttle, manage idle through the throttle body and support appropriately configured electronic control functions.
Functions
- Converts a compatible 964 or non-VarioRam 993 intake manifold to electronic throttle operation.
- Measures intake-air temperature and manifold pressure through one Bosch T-MAP sensor.
- Allows suitable aftermarket engine management to control engine idle through the throttle.
- Eliminates cable drag, stretch and resistance from multi-part mechanical throttle arrangements.
- Supports ECU-dependent features such as cruise control, automatic throttle blipping, traction control and boost control.
Technical Details
- Bosch 74mm electronic throttle supplied with connector kit.
- CNC-machined aluminium throttle intake adaptor.
- CNC-machined aluminium resonance tube with flap assembly, sealed roller bearings and vacuum actuator.
- Bosch 1.15 bar T-MAP sensor option for naturally aspirated engines.
- Bosch 3.0 bar T-MAP sensor option for turbocharged engines.
- Throttle and T-MAP fasteners plus vacuum hose are included with the centre-section kit.
Kit Configurations
- Centre-section kit: throttle adaptor, resonance-tube assembly, Bosch electronic throttle, selected T-MAP sensor, connector kits, fasteners and vacuum hose.
- Complete two-bolt kit: centre section, 34mm, 39mm, 40mm or 42mm two-bolt intake adaptors, 964 manifold adaptors and standard fuel rails.
- Complete three-bolt kit: centre section, 42mm or 43.5mm three-bolt intake adaptors, manifold adaptors and standard fuel rails.
Additional Parts Required
- Vacuum solenoid and canister.
- Air filter and suitable adaptor.
- Rubber sleeves and hose clamps for the intake-manifold ports; applicable original Porsche components may be reused.
Optional Components
- 964/993 vacuum kit and mounting hardware.
- 964/993 electronic accelerator pedal kit.
- 993 adaptor for retaining the factory rubber intake, airflow meter and airbox.
- 964 adaptor for retaining the factory rubber intake and airbox, including an airflow-meter delete kit.
- 964/993 air-filter adaptor kit or advanced fuel rail kit.
Why Replacement Matters
This conversion provides a simplified electronic alternative to the original throttle mechanism and ageing idle-air bypass valve. Operation depends on compatible engine management, suitable wiring and calibration for the individual engine installation.
FAQs
- Does it fit a VarioRam 993 manifold?
No. The conversion is designed for Porsche 964 and non-VarioRam 993 intake manifolds. - Which T-MAP sensor is suitable?
The 1.15 bar option is intended for naturally aspirated engines, while the 3.0 bar version is offered for turbocharged applications. - Is the separate vacuum kit included?
No. The vacuum solenoid and canister kit are available separately. - Can the original airbox be retained?
Separate 964 and 993 adaptors are offered for installations using applicable factory intake and airbox components. - Is a cable-operated version available?
Adapt Motorsport also offers solutions for manual, cable-actuated throttle installations.