Jenvey Porsche Boxster / 911 Watercooled - SF48 Taper ITB Kit

The Jenvey Porsche Boxster / 911 Watercooled - SF48 Taper ITB Kit (CKPE04) replaces the standard intake on early water-cooled Porsche flat-sixes with six SF48 taper individual throttle bodies, for track-focused builders who want crisp throttle response.

Designed and manufactured by Jenvey Dynamics in the UK, Jenvey's individual throttle body systems are prized for crisp throttle response, strong torque and the unmistakable induction sound. An aftermarket ECU is required.

Key Features:

• Built & Balanced: Supplied assembled and balanced by Jenvey, ready to fit.
• Improved Fuel Mixing: Injectors sit further upstream, in the part-throttle turbulence of the butterfly, for better atomisation, torque and power.
• Maximum Flow: Profiled spindles minimise cross-sectional area at full throttle.
• Fine Low-Speed Control: A shallow 8° shut angle gives finer control at small throttle openings.
• Proven Durability: Major components are rig tested to over 1 million cycles.
• UK Made: Cast in Jenvey's own foundry and machined in the same UK factory; castings are lighter than fully CNC-machined parts.
• Modular System: Bespoke throttle sizes and system lengths can be built to order.

Features

• 90mm long air horns included

Technical Specifications:

What's In The Box?

• 1 x Inlet manifold set
• 6 x SF48 taper throttle bodies (45mm butterfly)
• 1 x Fuel rail with mount set
• 1 x Set of 90mm air horns

Please note:

• Bosch 412cc injectors are recommended. An idle air system, a carbon 50mm dished panel filter backplate (ABF-KIT-CKPE04) and 65mm filters are available on request.
• A panel filter needs the carbon 50mm dished backplate.
• A 65mm filter is recommended for the 90mm air horns if space allows.

Frequently Asked Questions (FAQs):

Q: What does this kit fit?
A: Early water-cooled Porsche flat-six engines, as used in the early Boxster and water-cooled 911. Please contact us if you'd like us to confirm fitment for your engine.

Q: Do I need an aftermarket ECU?
A: Yes. Individual throttle bodies need an aftermarket ECU that is mapped to suit the kit.

Q: Are injectors and a fuel pump included?
A: No, unless listed in What's In The Box. Please contact us and we'll supply the right parts.

Q: Do I need an idle control valve?
A: It's recommended for road cars to improve drivability, but it isn't needed with electronic throttle actuation.

Q: Is this kit made to order?
A: Yes. Jenvey builds kits to order, so please allow time for manufacture. Please contact us for current lead times.

Q: Can I get a different bore size or specification?
A: Yes. Jenvey systems are modular and bespoke builds are possible. Please contact us and we'll confirm fitment and price.