2 X WEBER 40 DCOE Dellorto 2" Ram Pipe Velocity Stack Intake Trumpet

Pair of Vortex Velocity Stacks – 2" Tall, 40mm Bore

Upgrade your induction system with a pair of IPNG Vortex velocity stacks, designed for 40mm Weber and Dellorto carburettors.

Featuring a smooth bellmouth entry and integrated curved guide vanes, the Vortex design is intended to help smooth and control airflow entering the carburettor, reducing turbulence at the intake and promoting efficient airflow.

With a 40mm bore, 65mm mounting stud spacing and 2" overall height, these velocity stacks are designed as a direct bolt-on fit for a range of 40mm carburettors.

Key Features

• Pair of two Vortex velocity stacks
• 40mm intake bore
• 65mm mounting stud spacing
• 2" / approximately 51mm tall
• Designed for Weber and Dellorto 40mm carburettors
• Smooth bellmouth entry
• Integrated Vortex guide vanes
• Designed to optimise and control intake airflow
• Durable ASA construction
• Uses the original carburettor mounting studs and fixings
• Custom sizes and lengths available on request

Fitment

Primary verified applications:

• Dellorto DHLA40
• Weber DCOE40

The 65mm stud-centre mounting pattern is also commonly used for other 40mm carburettor applications, including Dellorto DRLA40, Weber DCOM40 and Weber IDF40.

If your carburettor has a 40mm bore and 65mm mounting stud centres, these stacks may also be suitable.

Specifications

Vortex Design

The Vortex velocity stack features a smooth bellmouth entry to help reduce turbulence as air enters the carburettor.

Integrated curved guide vanes within the stack are designed to help control and direct the incoming airflow, providing a more consistent transition into the carburettor.

The result is a velocity stack designed with airflow optimisation as its primary purpose, while also providing a distinctive alternative to conventional straight-bellmouth designs.

Installation

Difficulty: ★★☆☆☆
Estimated Time: 15–30 minutes

Installation is straightforward and requires the use of the original carburettor mounting studs and fixings.

Remove the existing intake arrangement, position the Vortex velocity stacks onto the carburettor mounting studs and secure using the original hardware.

No permanent modification to the carburettor is required.

Air Filtration

These velocity stacks can be used with different intake and filtration arrangements depending on the vehicle and engine bay configuration.

For exposed engine bays or vehicles regularly used in dusty environments, we recommend using a suitable foam filter over the velocity stacks to help protect the engine from airborne dirt and debris.

Air filters are not included.

What's Included

• 2 × 2" Vortex velocity stacks

Carburettors, mounting hardware, air filters and other accessories are not included.

Custom Sizes

Need a different height, bore or configuration?

Other sizes and lengths are available from IPNG Automotive. Please contact us to discuss your requirements.

Need the larger 45mm bore instead? See the 2" Vortex velocity stacks for Weber DCOE45 and Dellorto 45mm applications (IP-0021).

Important Information

These velocity stacks are designed around a 40mm bore and 65mm mounting stud spacing.

Please check your carburettor dimensions before purchasing to confirm compatibility.

IPNG Part Number

IPNG SKU: IP-0020

Why Choose IPNG Automotive?

At IPNG Automotive, we design and manufacture OEM+ and performance-focused components for enthusiast vehicles, with a particular focus on producing parts that aren't readily available through conventional suppliers.

Our Vortex range is designed with both function and appearance in mind, providing enthusiasts with practical alternatives to conventional intake components.

Vortex Fitment & Selection Guide

Not sure which Vortex stack is right for your carburettor? Use our Vortex velocity stack fitment & selection guide to compare carburettor fitment, intake or bore size, stack height and IPNG part number.