
( Brand: Holley ), ( Manufacturer Part Number: 0-80804RDX ), ( Color: Red ), ( Flange Style: Square Bore ), ( Cfm: 850 ), ( Finish: Polished ), ( Type: Carburetor )
The Holley 0-80804-RDX Ultra HP Carburetor is a high-performance, 850 CFM carburetor designed for serious racing applications. This carburetor is part of Holley's Ultra HP series, which is known for its ability to deliver precise fuel delivery and consistent power throughout the entire RPM range.
The Ultra HP Carburetor features Holley's proven design, which includes a fully machined billet body, CNC-ported bowl, and a high-performance diaphragm pump. The billet body provides increased rigidity and durability, while the CNC-ported bowl ensures optimal fuel flow and vaporization. The high-performance diaphragm pump delivers large fuel volumes at high pressure, making it ideal for high-horsepower applications.
This carburetor also includes Holley's Ultra HP internals, which include a 2.10-inch primary bore and a 2.30-inch secondary bore. The large primary bore ensures excellent low-end torque, while the large secondary bore provides smooth transition to the secondary circuit for strong mid-range and top-end power. The Ultra HP Carburetor also includes a high-performance accelerator pump, which delivers a large volume of fuel for quick throttle response.
The Ultra HP Carburetor is also equipped with Holley's advanced fuel system technology, including a built-in fuel pressure regulator and a dual-feed fuel system. The built-in fuel pressure regulator allows for easy fuel pressure adjustment, while the dual-feed fuel system ensures consistent fuel delivery to both the primary and secondary circuits.
Additional features of the Ultra HP Carburetor include a removable linkage plate, which makes it easy to install and adjust, and a high-flow air bleed system, which ensures quick and efficient air removal from the carburetor. The carburetor also includes a float bowl venturi size of 1.125 inches and a venturi size of 1.75 inches, which provide optimal fuel delivery for most racing applications.
In summary, the Holley 0-80804-RDX Ultra HP Carburetor is a high-performance, 850 CFM carburetor that delivers precise fuel delivery and consistent power throughout the entire RPM range. It features a fully machined billet body, CNC-ported bowl, high-performance diaphragm pump, Ultra HP internals, built-in fuel pressure regulator, dual-feed fuel system, removable linkage plate, and high-flow air bleed system. This carburetor is an excellent choice for serious racing applications where precise fuel delivery and maximum power are crucial.
The Holley 0-80804-RDX Ultra HP Carburetor is a popular choice among performance enthusiasts for its high flow rate and advanced features. Here are some pros and cons to help you make an informed decision about purchasing this carburetor:
Pros:1. High Flow Rate: With a flow rate of 850 CFM, this carburetor can provide sufficient fuel to high-performance engines, ensuring optimal engine performance and power.
2. Advanced Features: The Ultra HP carburetor comes with several advanced features such as a vacuum secondary system, adjustable idle mixture screws, and a progressive linkage. These features allow for fine-tuning of the carburetor to meet the specific needs of your engine.
3. Improved Idle Circuit: The Ultra HP carburetor features an improved idle circuit that provides smoother idle quality and improved response.
4. Durable Construction: The carburetor is built with high-quality materials, including a billet aluminum body and hard anodized aluminum components, ensuring durability and longevity.
5. Easy to Install: The Ultra HP carburetor comes with a comprehensive installation manual and is relatively easy to install, making it a popular choice for DIY enthusiasts.
Cons:1. Complexity: The Ultra HP carburetor is a complex piece of machinery, and setting it up to run optimally can be a challenging process, especially for those without a strong understanding of carburetion.
2. Cost: The Ultra HP carburetor is a premium product and comes with a premium price tag. It may be more expensive than other carburetors on the market.
3. Maintenance: Carburetors require regular maintenance to ensure optimal performance, and the Ultra HP carburetor is no exception. Proper maintenance, including regular cleaning and adjustments, is necessary to keep the carburetor running smoothly.
Conclusion:In conclusion, the Holley 0-80804-RDX Ultra HP Carburetor offers several advanced features, high flow rate, and durable construction, making it an excellent choice for high-performance engines. However, its complexity, cost, and maintenance requirements are important considerations to keep in mind before making a purchase.
Recommendation:If you are looking for a high-performance carburetor and are willing to invest time and effort into setting it up and maintaining it, the Holley 0-80804-RDX Ultra HP Carburetor is an excellent choice. However, if you are looking for a more straightforward and cost-effective solution, there are other carburetors on the market that may better suit your needs.
HOLLEY 0-76850HB - Carburetor 850 cfm Ultra Double Pumper. Same-Day dispatch is available. Please also refer to the images for an accurate of parts included in this listing. Carburetor - model 4150 Ultra XP 4-Barrel 850 cfm Square Bore No Choke Mechanical Secondary Dual Inlet Red Anodized / Polished Each.
HOLLEY 0-8007 - Performance Carburetor 390 cfm 4160 Series. HOLLEY 0-80804RDX - Ultra HP Carburetor 850 cfm .