The Bosch Motorsport DBW 60mm electronic throttle body provides drive-by-wire throttle control for engines where the ECU replaces the mechanical throttle cable. A DC motor drives the throttle plate; the ECU controls the motor via a PWM signal on the two motor pins (M+ and M−) and reads the actual throttle position from two independent potentiometers (IP1 and IP2) on a shared 5 V supply.
The dual-potentiometer design provides TPS redundancy — both sensors measure the same physical angle and the ECU cross-checks their outputs to detect sensor failure or out-of-range conditions. If one TPS signal falls outside the expected window relative to the other, the ECU defaults to a safe operating mode or limp state, preventing an uncontrolled wide-open throttle condition. This is a regulatory requirement in most racing series where drive-by-wire is permitted.
Flex-fuel, CNG, and LPG applications are compatible provided the alternative fuel is injected downstream of the throttle body in the air flow path — the throttle body itself sees only air, not fuel vapour.
The 60 mm bore suits engines up to approximately 3–4 L displacement on naturally aspirated applications; suitable for higher-displacement turbocharged engines where manifold pressure management reduces mass flow through the throttle.
Technical Specifications
| Property | Value |
|---|---|
| SKU / Part number | 0280750151 (0 280 750 151) |
| Bore diameter | 60 mm |
| Actuation | DC motor |
| Position sensing | Dual potentiometer (TPS1 and TPS2) |
| Sensor supply | 5 V |
| Connector | 6-pin Bosch |
| Pinout | 1 = M− (motor −), 2 = 0V (sensor GND), 3 = 5V (sensor supply), 4 = M+ (motor +), 5 = IP2 (TPS signal 2), 6 = IP1 (TPS signal 1) |
| Fuel/medium | Air only at throttle (flex-fuel/CNG/LPG injected downstream) |
ETC System Overview
A complete electronic throttle control (ETC) system requires three components:
1. This throttle body (actuator + position feedback)
2. An accelerator pedal position sensor (driver demand input)
3. An ETC-capable ECU (closed-loop control of motor to match pedal demand)
The Bosch Motorsport MS 6.2 EVO and MS 6.4 EVO ECUs include 2 × dedicated ETC H-bridge outputs specifically for this throttle body.
DBW Comparison
| Model | Bore | Engine Size (guidance) | Product Page |
|---|---|---|---|
| DBW 60mm | 60 mm | Up to ~3–4 L NA, boosted applications | — |
| DBW 82mm | 82 mm | Up to ~6 L NA | View |
Related Products
- Bosch Motorsport DBW 82mm — larger bore for high-displacement engines
- MS 6.4 EVO ECU — 2 × dedicated ETC H-bridge outputs
- MS 7.4 ECU — integrated ETC control
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