Porsche 2 Bolt ITB Kit Big Bore

Details of Base kit

The Jenvey Porsche electronic fuel injection (EFI) individual throttle body kit (ITB) has been design and developed in house to significantly increase performance and throttle response of your engine leading to a reduction in lap times. This engine was originally fitted into the 911's.

Porsche Individual Throttle Body (ITB) kit for fuel injecting your Porsche engine includes six SF48/4.5/1 taper throttle bodies with a special balanced linkage, two inlet manifolds, heat insulating spacers, fuel rails and six 90mm long taper airhorns.

CKPE05 Small port 2 Bolt Kit

CKPE06-39 Heritage 2 Bolt Kit

CKPE03 3 Stud Kit

Kit performance is enhanced by careful positioning of the EFI fuel injectors being located further upstream than standard and directly in the part throttle turbulence of the butterfly.  This allows increased time/distance for improved fuel mixing increasing torque and power where its needed.  Our spindles profiled to minimise cross sectional area at full throttle and an 8 degree shut angle (shallower than most) gives finer control at small throttle openings.  Our kits come built and balanced ready to fit you your engine and win races.

Jenvey Dynamics design, develop and manufacture all products in house often working with leading engine builders.  Uniquely, with our own foundry, all castings are created in the same factory that they are machined and built in.  Our cast systems are significantly lighter than fully CNC parts and all major components are backed up by rig tests of over 1 million cycles.  All our standard kits are proven but our throttle systems are extremely modular allowing bespoke throttle sizes and system lengths. Please order components individually for bespoke application.

This Jenvey kit requires an aftermarket ECU.

Drawing and other information can be found at the bottom of the page

Option and Accessories

Throttle operation comes included in the base kit

An idle air system can help make road cars more useable but is not required with electronic actuation

We offer a range of injectors but recommend Bosch 412cc for this kit – see our injector sizing chart.

To fit a panel filter to this kit a carbon 50mm dished backplate is required. ABF-KIT-CKPE02

 For the 90mm airhorns the kit comes with we recommend a 65mm filter (if you have the space)

Price From £3,163.20 £2,636.00

All prices exclude VAT

All prices include VAT

Build Your Kit
Porsche 2 Bolt Kit Big   + £3,163.20 £2,636.00

* Required Fields

Price as Configured

All prices exclude VAT

All prices include VAT

£3,163.20 £2,636.00

View Drawing Manifold Drawing
View Drawing CKPE02-WEB_ISS1.PDF
View Instructions Porsche Linkage Instructions
View Document Fuel System Setup