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Jenvey Throttle Bodies

DISPLAYING 1 to 2 (of 2 products)
CKPE01-KIT
Product Information
Product Information
Jenvey 3-bolt SF45 Individual Throttle Body Kit.
Porsche 964

jenvey

Parallel Bored Throttle Bodies

A kit for the 3-stud aircooled Porsche engine as used in the 964 style cars.
For the 3.6ltr and 3.8ltr cars

The base kit includes;
• Inlet manifolds x 6
• Jenvey SF 45mm bore throttle bodies x 6
• 90mm Long airhorns x 6
• Linkage kit, fuel rail and fuel rail mounts

Kit is Made to Order

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

CKPE01-KIT
WFR024
WFR029
WFR043
WFR060
WFR505
WFR024

The product you are viewing cross references to these numbers
CKPE03-KIT
Product Information
Product Information
Jenvey 3-bolt Tapered SF51 Individual Throttle Body Kit.

jenvey

Tapered Throttle Bodies
51mm Diameter, tapered throttle bodies with 41mm butterflies

A kit for the 3-stud aircooled Porsche engine as used in the 964 style cars.
For the 3.6ltr and 3.8ltr cars

The base kit includes;
• Inlet manifolds x 6
• Jenvey SF 51mm taper throttle bodies with 48mm butterfles
• 90mm Long airhorns x 6
• Linkage kit, fuel rail and fuel rail mounts

Kit is Made to Order

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

CKPE03-KIT
WFR024
WFR029
WFR043
WFR060
WFR505
WFR024

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
About Jenvey Throttle Bodies

Jenvey Throttle Bodies – Precision Airflow, Motorsport Response & Advanced Engine Tuning

Jenvey throttle bodies are renowned for delivering exceptional throttle response, increased airflow efficiency and refined drivability, making them a leading choice for Porsche engine rebuilds and performance conversions. Designed using motorsport engineering principles, Jenvey’s individual throttle body (ITB) systems improve cylinder-to-cylinder airflow balance, enhance mid-range torque and significantly boost high-RPM breathing.

Ideal for naturally aspirated performance builds, standalone ECU conversions and motorsport applications, Jenvey throttle bodies offer the accuracy, adjustability and build quality needed to achieve precise engine tuning and optimised performance.

What Jenvey Throttle Bodies Do

Jenvey ITB systems provide a range of performance benefits:

  • Improve throttle response by reducing intake volume and increasing airflow velocity
  • Deliver balanced airflow to each cylinder for smoother, more consistent combustion
  • Enhance high-RPM power through individual, unrestricted air passages
  • Improve drivability with ultra-precise throttle modulation
  • Enable advanced tuning with standalone engine management
  • Support performance camshafts and high-compression builds with increased airflow capability
  • Produce iconic induction sound, popular with motorsport and track-day enthusiasts

The result is a more responsive engine with sharper acceleration and cleaner power delivery.

Why Throttle Bodies Fail Over Time

Even high-quality throttle systems experience wear, particularly in demanding environments such as track use, heat cycles and extensive mileage. Common causes of throttle body failure include:

  • Worn throttle shafts or bearings, creating air leaks
  • Carbon buildup restricting plate movement
  • Cracked or distorted housings from heat cycling
  • Vacuum leaks due to degraded seals or misalignment
  • Linkage wear causing uneven throttle opening
  • Contaminated airflow, affecting tuning accuracy
  • Electronic actuator faults (on drive-by-wire systems)

Failure symptoms often include: rough idle, hesitation, flat spots, uneven cylinder behaviour, or difficulty synchronising throttle banks.

Why You Should Replace or Upgrade to Jenvey Throttle Bodies

Upgrading to precision-engineered Jenvey throttle bodies, designed to surpass original induction performance, delivers significant benefits:

  • Sharper and more immediate throttle response
  • Increased airflow and improved volumetric efficiency
  • More accurate and stable tuning control
  • Improved peak power and torque gains
  • Greater compatibility with custom cam profiles and standalone ECUs
  • Enhanced reliability using motorsport-proven materials
  • Reduced intake restriction and smoother airflow characteristics

For any rebuild or performance-focused Porsche engine, Jenvey ITBs provide a major improvement in responsiveness, tuning capability and overall performance.

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