do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- 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
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
Rennen MAP Sensor for Rennen by JSR Individual Barrel Throttle Body Upgrades
The Rennen MAP Sensor is a critical engine management component designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) upgrades. Working alongside the Rennen Vacuum Manifold system, the MAP (Manifold Absolute Pressure) Sensor provides the engine control unit (ECU) with accurate engine load data, allowing precise fuel and ignition calculations throughout the entire rev range.
Fits:
- 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
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
When converting a Porsche engine to Individual Barrel Throttle Bodies, the original intake and airflow characteristics change significantly. Unlike conventional plenum intake systems, individual throttle bodies generate multiple pulsing vacuum signals which must be stabilised and measured correctly. The Rennen MAP Sensor, combined with the Rennen Vacuum Manifold, delivers the accurate load signal required for modern ECU calibration and reliable engine operation.
Whether you are building a fast road Porsche, a track-focused machine or a competition engine, the MAP sensor is one of the most important components in ensuring your ITB conversion performs exactly as intended.
What Does a MAP Sensor Do?
MAP stands for Manifold Absolute Pressure.
The sensor continuously measures the vacuum and pressure levels within the intake system and sends this information to the ECU. The ECU then uses this data to calculate engine load and make real-time adjustments to fuel delivery and ignition timing.
A properly functioning MAP sensor helps provide:
- Accurate engine load measurement
- Precise fuel mapping
- Optimised ignition timing
- Stable idle quality
- Improved throttle response
- Enhanced drivability
- Reliable cold starting
- Consistent engine performance
Without a stable and accurate MAP signal, modern engine management systems cannot correctly determine engine operating conditions.
Why Is a MAP Sensor Essential for ITB Conversions?
Individual Throttle Body systems dramatically improve airflow and throttle response, but they also create unique tuning challenges.
Unlike a traditional intake manifold, each throttle body generates its own vacuum pulse. The Rennen Vacuum Manifold combines these signals into a smooth vacuum source which the MAP sensor can accurately measure.
This allows:
- Standalone ECUs to calculate engine load correctly
- More accurate fuel delivery
- Improved ignition control
- Stable idle operation
- Better low-speed drivability
- Enhanced throttle transitions
- Improved tuning consistency
The result is an ITB-equipped Porsche that not only sounds incredible but also drives smoothly and predictably.
Why Are Barrel ITB Upgrades So Popular?
Rennen by JSR Barrel Throttle Bodies are engineered to maximise airflow while delivering a motorsport-inspired driving experience.
Benefits include:
- Instant throttle response
- Improved engine breathing
- Increased power potential
- Enhanced torque delivery
- Exceptional induction sound
- Improved driver engagement
- Modern EFI compatibility
- Stunning engine bay appearance
When paired with a properly calibrated ECU and accurate MAP sensor data, the system delivers both performance and drivability.
Why Choose the Rennen MAP Sensor?
Developed specifically for Rennen by JSR ITB applications, this sensor provides the accuracy and reliability required for professional-level engine management calibration.
Benefits include:
- Accurate vacuum and pressure measurement
- Compatible with Rennen Vacuum Manifold systems
- Supports standalone ECU installations
- Essential for ITB engine management
- Improves tuning accuracy
- Enhances drivability
- Suitable for road and motorsport applications
- Reliable long-term performance