
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
XP-Series Carburetor 500CFM Circle Track Alcohol - XP-4412-AOverview: In circle track classes that mandate two barrel carburetors, customizing a street carburetor has been the norm for decades. Not anymore. Designed from the ground up to meet the unique demands of circle track racing, QFT's new XP Series offers the performance benefits of a custom carburetor in an affordable, turnkey, class legal package. At a bare minimum, modifying a standard street carburetor for circle track duty typically involves
Overview:
In circle track classes that mandate two-barrel carburetors, customizing a street carburetor has been the norm for decades. Not anymore. Designed from the ground up to meet the unique demands of circle track racing, QFT's new XP-Series offers the performance benefits of a custom carburetor in an affordable, turnkey, class-legal package. At a bare minimum, modifying a standard street carburetor for circle track duty typically involves changing the throttle-plates, floats, and metering blocks. These custom modifications can easily exceed the cost of a turnkey QFT two-barrel carb while still lacking many of the key features that only a clean-sheet redesign can offer. A high-flow aluminum main body design centers the venturi over the throttle-body assembly. To further increase airflow, QFT centers the air horn over the venturi, removes the choke tower, and carefully profiles the air inlet transition. The result is enhanced airflow and fuel distribution, which improves throttle-response and horsepower. All XP-Series carburetors are equipped with roller bearing seals which provide smoother throttle response, less wear on shaft, and longer life. Available in 500- and 600 cfm sizes, the XP-Series sets a new standard in two-barrel circle track carbs. High-flow aluminum main body with centered venturi for improved performance and better air/fuel distribution Black anodized billet 2-Circuit metering block and throttle body Throttle body incorporates roller bearing seals which provide smoother operation, less wear on shaft, and longer life Anti-siphon check valve in main body to reduce pump pull-over Changeable emulsion bleeds and power valve channel restrictions for better tuning capabilities Dual inlet fuel bowl with #8AN fittings Dual sight glass windows for easy float adjustment Single wedge circle track float Exclusive Black Diamond® coating for enhanced corrosion protection and appearance. Provides a 6% reduction in fuel temperature.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Barrels | 2 |
|---|---|
| Billet Color | Black |
| Booster | Straight |
| Brand | Quick Fuel |
| Carburetor Use | Professional Race |
| CFM | 500 |
| Choke | None |
| Circuit | 2 |
| Condition | New |
| Emission Code | 3 |
| Finish | Black |
| Fuel | Methanol |
| Fuel System | Carbureted |
| High Speed Air Bleed | 31 |
| Idle Air Bleed Size | 55 |
| Marine Use | No |
| Material | Aluminum |
| Model | XP-Series |
| Primary Main Jet | 128 |
| Primary Power Valve | 45 |
| Primary Pump Nozzle Size | 55 |
| Product Type | Carburetor |
| Secondaries | None |
| Secondary Main Jet | N/A |
| Supercharged Application | No |
| Throttle Bore | 1-11/16 inch |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy