Inlet Manifold

Crafted from high-grade aircraft aluminum, our Porsche G-Model to 964 Billet Intake Runner delivers superior performance enhancements. Available in various cylinder head port diameters ranging from 34mm to 42.5mm, with options for standard injector sizes. 

Compatibility and Customization:
Tailored specifically to fit Porsche 2.7-3.2L engines, this intake runner enables seamless mounting of a Porsche 964/993 type intake. Unlike the 964/993's 3-bolt attachment, our design utilizes a 2-bolt M8 attachment for cylinder head placement.

Versatile Use and Configurations:
Compatible with standard rails or designed for use with the IslandWorks/Nuke system featuring a direct mount fuel regulator. 

Superior Craftsmanship and Finish:
Each runner boasts a natural machined finish, complemented by a base gasket insulator for optimal performance. To ensure that every set of intake runners arrives in style, they are shipped in a personalized color-of-the-day gift box as shown in the images.

Important Note:
This product requires a flat cylinder head seal (included in set) for superior heat insulation, deviating from the conventional seal type.

42mm velocity stack for Porsche 911 S engines, 2.2ltr and 2.4ltr - Not for Sportomatic

This high-quality aluminum velocity stack, with a diameter of 42mm, is specially designed for use in Porsche 911 S engines built between 1970 and 1973.
The funnel set ensures a precise fit and compatibility with the corresponding vehicle models.
Made from durable materials and manufactured to the highest quality standards, this funnel provides optimum performance for your Porsche 911 S.
The 42mm diameter allows for efficient airflow.

Click 'Zoom in' for large parts diagram.
Diagram ref no 30

Fits:
Porsche 911 - 1974 - 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

911 used 2-Bolt type
964/993 uses 3-Bolt type

Please Note: 
The aluminium or plastic intake plenum(inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine, now also for turbo or supercharged cars.

To be used when converting a G-Model 911 or a 964/993 engine to a turbocharged/supercharged engine with a 964 induction based Drive by Wire set-up

Conversion kit to a Porsche 964 based intake system to become a DBW (Drive by wire) intake based 74mm original Bosch throttle body (Sometimes referred to as 76mm) specifically executed all in CNC milled billet aluminum.

This is sold either with the intention to convert a Porsche 964/993 engine or to adapt and convert a 964 intake onto a G-model car when turbocharging (That sounds fun!).

Kit includes:

• Throttle body runner for 74mm throttle body in aluminum 
• Vacuum port on throttle body runner
• Original Bosch electronic throttle body
• Original Bosch MAP-T-sensor
• Connecting pipe out of aluminum replacing the resonance tube

Intake runners for the Porsche 911 G-model (2-bolt) or 964/993 (3-bolt) engine are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. 

The following parts are to be reused from your original 964 intake:
Rubber boots and clamps
The plenums (inlet manifolds)

Please Note:
Aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.

Fits:
Porsche 911 - 1974 - 1989

Please Note: 
The aluminium or plastic intake plenum(inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine

Conversion kit for the 911 G-model to become a DBW (Drive by wire) intake based on the 964 induction and using the 74mm original Bosch throttle body (Sometimes referred to as 76mm). This is intended to breathe a bit more life into a classic G-model.

The kit includes

• Throttle body runner for 74mm throttle body
• Original Bosch electronic throttle body
• Original Bosch MAP-T-sensor
• Resonance tube
• Vacuum solenoid
• Connectors and hose
• Vacuum check valve
• Intake runners for the Porsche 911 G-model engine

Intake runners are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. Please note that these are the 2-bolt designs. 

To create a bit of intimacy between you and your engine we have included a bit of DIY work for you to convert your existing Porsche 964 intake into this version. 

The intake also exists in two versions - This is the premium version where the throttle body runner is milled out of a billet in aluminum. This is the pinnacle of craftmanship giving a very solid feel to the intake at a natural premium. Both options have the same performance and the same durability with the difference being the look and feel of a 5-axis machined piece as the very first thing you lay your eyes on when you open the engine decklid!

For both options the lower resonance tube is made from our usual modified PA12 in black.

The following parts will be reused from the 964 intake:

• Rubber boots and clamps
• Vacuum reservoir
• The aluminium or plastic plenums
• Resonance flap, actuator and shaft

Please Note: 
The aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.

Fits:
Porsche 911 - 1974 - 1989

Please Note: 
The aluminium or plastic intake plenum(inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine

Conversion kit for the 911 G-model to become a DBW (Drive by wire) intake based on the 964 induction and using the 74mm original Bosch throttle body (Sometimes referred to as 76mm). This is intended to breathe a bit more life into a classic G-model.

The kit includes

• Throttle body runner for 74mm throttle body
• Original Bosch electronic throttle body
• Original Bosch MAP-T-sensor
• Resonance tube
• Vacuum solenoid
• Connectors and hose
• Vacuum check valve
• Intake runners for the Porsche 911 G-model engine

Intake runners are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. Please note that these are the 2-bolt designs. 

To create a bit of intimacy between you and your engine we have included a bit of DIY work for you to convert your existing Porsche 964 intake into this version. 

The intake also exists in two versions - this version is what we at Islandworks use with all other intakes, being a modified PA12 material from an industrial manufacturing process. Both options have the same performance and the same durability with the difference being the look and feel of a 5-axis machined piece as the very first thing you lay your eyes on when you open the engine decklid!
For both options the lower resonance tube is made from our usual modified PA12 in black.

The following parts will be reused from the 964 intake:

• Rubber boots and clamps
• Vacuum reservoir
• The aluminium or plastic plenums
• Resonance flap, actuator and shaft

Please Note: 
The aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.

Sold separately - 2 per car



Fits:
Porsche 911E 2.0ltr - 1969 only
Porsche 911S 2.0ltr - 1969 only

OPTIONS:
1. 90111004301 - 911E with 901 110 317 0R cast into the body
2. 90111003101 - 911S with 901 110 309 0R cast into the body

Intake manifold for the 1969 model year Porsche 911E and 911S only. 

The 1969 model year 911E and 911S were the first 911 models with the mechanical piston pump injection system (MFI). 

The diameter is 36mm to the throttle body and 38mm to the velocity stack and the pitch of the studs to the throttle body is 66 mm. 

These intake manifolds are identical on the left and right and are sold separately - 2 required per car

Fits:
Porsche 911 / 911S 2.7ltr - 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989

These adapters are used to modify the 2.7ltr / 3.0ltr / 3.2ltr Porsche 911 2 bolt cylinder head engines to the later 964 / 993 3.6ltr intake manifolds when converting to EFI.  

CNC machined on a 5 axis machine to our exacting tolerances and finish and anodised dark grey these are custom machined to match your port diameter and tapered to fit up to the 42mm inlet manifold port size.

The short adapor height maintains the overall height of the intake set, reducing the interference between the idle air control, the intake boot and the top of the engine bay insulation.  The factory plastic 3 bolt 964 stacks are too tall, and adding an adapter spacer would make the manifolds not fit at all.

This design permits the use of the standard 964 fuel injectors and fuel rails so positions the injector over the same relief in the intake port for the original CIS injector, ensuring proper atomisation of the injector spray into the intake port.

Key Features:
Precision machined from high grade aluminium
Anodized finish
Fits all Bosch 14mm O-ring fuel injectors
Fuel rail spacers are marked for easy cutting to suit long, medium or short injector types.

Kit Includes:
6 x CNC aluminium adapters
4 x Spacer/Posts for fuel rail 
4 x Bolts to suit standard full length Bosch injectors
12 x Nuts and washers 

Fuel rails not included in kit

34mm / 40mm / 41mm / 42mm adaptors are made to order. Please allow 4-5 weeks for delivery

Check out our fuel rail and fuel pressure regulator kits to make the perfect conversion set

Porsche 911 / 911S 2.7ltr - 1974 to 1977
Porsche 911 SC - 1978 to 1983
Porsche 911 3.2 Carrera - 1984 to 1989

These adapters are used to adapt the 2.7ltr / 3.0ltr and 3.2ltr Porsche 911 2-bolt cylinder head engines to take the 996 GT3 intake manifolds when converting to EFI.  
CNC machined our exacting tolerances and finish and anodised dark grey these are custom machined to match your port diameter and tapered to fit the 49mm bore of the GT3 inlet manifold.

The short height maintains the overall height of the intake set, reducing the interference between the idle air control valve, the intake boot and the top of the engine bay insulation.  

This design permits the use of the AMS fuel rails, and positions the injector over the same relief in the intake port for the original CIS injector, ensuring proper atomisation of the injector spray into the intake port.

Key Features:
Precision machined from high grade aluminium
Anodized finish
Fits all Bosch 14mm O-ring fuel injectors
Fuel rail spacers are marked for easy cutting to suit long, medium or short injector types.

Kit includes:

• CNC aluminium adapters x 6
• Spacer/Posts for fuel rail x 4
• Bolts to suit standard full length Bosch injectors x 4
• Nuts and washers for cylinder head studs x 12

44mm adaptors are made to order. Please allow 4-5 weeks for delivery

Check out our fuel rail and fuel pressure regulator kits to make the perfect conversion set.

 


Fits:
Porsche 911 3.2L 1984-89

Diagram ref no 5