Jenvey Heritage IDF Twin Throttle Body 40-48mm, Quad

The Jenvey Heritage IDF Twin Throttle Body 40-48mm, Quad (TDFQ40-48) converts an 8-cylinder engine from downdraught IDF carburettors to fuel injection, using 4 Heritage twin throttle bodies styled to look like the original carbs.

Designed and manufactured by Jenvey Dynamics in the UK, the specialist behind some of the most respected individual throttle body systems in motorsport.

Key Features:

• Carb Replacement: Bolts to the standard Weber IDF carburettor flange, keeping the period look while adding fuel injection.
• Integrated Fuel System: Built-in fuel rail with 350cc injectors supplied, plus extension looms that bring the injector connectors to the underside.
• Hidden TPS: Throttle position sensor is housed internally for a clean, carburettor-style appearance.
• Ethanol Ready: Compatible with E10 pump fuel and blends up to E20.
• Choose Your Spec: Select your bore size above. The price updates as you choose.

Technical Specifications:

What's In The Box?

• 4 x Heritage IDF twin throttle body (8 throttles)
• 8 x 350cc fuel injectors (fitted)
• Built-in fuel rail
• Injector extension looms

Complete Your Kit:

• Throttle Body Synchrometer 39-55mm (£79.20)
• 3.0 Bar Fuel Pressure Regulator (£110.40)
• Bosch 201 Fuel Pump 200 l/hr (£248.40)
• Complete Jenvey throttle body kits, if you'd prefer a full matched system
• All Jenvey throttle body parts & accessories

FURTHER OPTIONS AVAILABLE ON REQUEST:

(Please contact us to add any of the following)

• Heritage 250cc injector upgrade, per twin body (original injectors returned) (+£108.00 inc VAT)
• Heritage 730cc injector upgrade, per twin body (original injectors returned) (+£117.60 inc VAT)

Please note:

• Air horns are not included and are sold separately.
• Not recommended for boosted engines; for forced induction please choose a standard Jenvey throttle body.
• Injector upgrades are priced per twin body and require the original injectors to be returned.

Frequently Asked Questions (FAQs):

Q: What does this fit?
A: 8-cylinder engines currently running Weber IDF-pattern carburettors (naturally aspirated). If you're not sure it suits your setup, please contact us with your engine and throttle body details and we'll confirm before you order.

Q: Can I use this on a turbo or supercharged engine?
A: No. Jenvey advise against using Heritage bodies on boosted engines; their standard throttle bodies suit forced induction.

Q: Are air horns included?
A: No. Air horns are sold separately so you can choose the length to suit your installation.

Q: Can you supply a complete system?
A: Yes. See our Jenvey throttle body kits for complete engine-specific systems, or contact us and we'll put a package together.