Facts About Grenergy CNC Aluminum Fuel Adapters
We get a lot of questions about our CNC machined fuel plate adapter and what came to mind during the development of the kit.
Other brands out on the market uses 3D printed plastic fuel adapter. 3D printing is mainly used for prototyping before final production. This allows for huge cost savings on manufacturing setup. Simply put, its cheap and easy to print a part.
Through professional grade parts can be produced from an industrial grade 3D printer. Machines like these are north of 100k and are cost prohibitive to run.
Most high volume production parts are not finished on a 3D printer, but rather through injection molding as final product. This is the preferred way of manufacturing.
At Grenergy we have taken this an extra step further by providing customers with quality parts that not just looks good, but functions as well. Which is the reason we chose for a fuel adapter that is machined from a solid block of aluminum for durability, reliability and longevity.
Three Parts in the Design of the Fuel Adapter
First aspect to the design of the fuel adapter: "Venturi Effect"
Upon testing the kit, we find using the venturi effect principle works extremely well. Even more so with ECO mode ON, during low engine idle when there is less vacuum coming from the engine air intake box.
The demand regulator needs to see a reasonable amount of vacuum signal to keep fuel flowing into the engine. This vacuum signal pulls against the diaphragm inside the demand regulator and keeps fuel flowing. Too low of a vacuum signal causes the diaphragm to close, and momentarily shuts off fuel flow. This sudden fuel cut causes the engine to either surge or idle rough as it struggles to stay running. Having stable vacuum signal produced from the fuel adapter is EXTREMLY important! This greatly affects engine performance!
Basic Discussion regarding the Venturi Effect. -- Source YouTube.com
Second aspect to the design of the fuel adapter: "Velocity Stack"
"Velocity stacks are also called intake trumpets, which gives you a bit better idea what they are. They're little trumpet-shaped air intakes for your engine. The trumpet shape smooths the flow of air into the intake, allowing the most air possible to flow through the given volume of the intake". --- Source Jalopnik.com
"Think of a velocity stack as the flute of a trumpet. It attaches to the intake side of the carb or throttle body and maximizes Bernoulli's principle to increase air speed (velocity) through the venturi". --- Source MotoCrossActionMag.com
There are several YouTube videos showcasing both dyno proven results on race engine applications big or small. One video in particular explains how velocity stacks works. Please click here ---> YouTube.com
Third aspect to the design of the fuel adapter: "Intake Runner"
How do you increase air intake velocity? - One way to increase the air velocity is to use a smaller diameter intake runner. Since roughly the same volume of air enters the cylinder each cycle, if you pump that air through a smaller diameter pipe it will have to go faster. --- Source HowStuffWorks.com
We hear a lot from other customers saying our competitors accuse us of restricting airflow with this design. We honestly think the competition has not done enough fact checking before making any statements. At the moment it's their word based on their own opinions rather than proof.
Before I started this business I was an certified ASE Automotive Technician with 6-7 years of hands on experience both in class training and on the job. What I know goes into developing the kit.