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Tillotson HM-1A Carburetor
Tillotson HM-1A Carburetor
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Tillotson HM-1A Carburetor

Part Number: HM-1A
On sale: $450.00 $400.00
Phone Order Price:$500.00
You Save:$100.00(20%)
Tillotson HM-1 Diaphragm Carburetor | 42mm Venturi for Unlimited All-Stars & Jr. Drag Engines | Mikuni-Style Boot, External Pulse, Adjustable Needles
Availability: In Stock.

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Description

Tillotson HM-1 Diaphragm Carburetor – 42mm Venturi | Nemesis Class | High Performance for Unlimited All-Stars & Jr. Drag Engines


The Tillotson HM-1 Diaphragm Carburetor is engineered for high-performance racing applications, offering precision and reliability for Unlimited All-Stars engines and Jr. Dragsters. With its 42mm venturi, this carburetor delivers optimal airflow and fuel atomization, providing the perfect balance of power and efficiency for engines in the 350ccrange. Designed with the advanced features required by serious racers, the HM-1 ensures maximum throttle response and superior tuning capabilities for competitive racing environments.


Key Features of the Tillotson HM-1 Diaphragm Carburetor:

  • 42mm Venturi: Optimized for larger displacement engines (approximately 350cc), the 42mm venturi provides an ideal air-fuel mix, enhancing throttle response, power output, and overall engine performance. It’s perfect for high-revving, unlimited-class engines.
  • Mikuni-Style Boot Connection: The Mikuni-style boot connection ensures a secure, leak-free fit for easy installation and superior sealing. This feature makes it compatible with a variety of engine setups, providing versatility and ease of use.
  • External Pulse Design: The external pulse design allows for better fuel flow and more precise control of fuel delivery. This feature is ideal for high-performance engines, ensuring that fuel delivery remains consistent even at high RPMs.
  • Fully Adjustable High and Low Needles: Fine-tune your carburetor to perfection with fully adjustable high and low needles. Whether you're dialing in idle performance or adjusting top-end power delivery, these adjustable needles give you complete control over the fuel curve, allowing for the most precise tune for your engine.
  • Durable & High-Performance Construction: Built to withstand the demands of Unlimited All-Stars and Jr. Dragster racing, the Tillotson HM-1 is constructed from premium materials to ensure long-lasting durability and consistent performance under the most intense racing conditions.

Why Choose the Tillotson HM-1 Diaphragm Carburetor?

  • Ideal for High-Performance Engines: Whether you’re building or upgrading your 350cc Unlimited All-Starsengine or tuning a Jr. Dragster, the Tillotson HM-1 is designed to meet the needs of high-output, high-performance racing engines.
  • Improved Throttle Response: With its advanced diaphragm technology, the HM-1 carburetor ensures quicker and more precise throttle response, allowing your engine to perform at its best in critical racing situations.
  • Exceptional Fuel Control: The fully adjustable needles allow for precise tuning, giving racers the flexibility to fine-tune the carburetor to their specific engine requirements and track conditions. Whether you're running a small or large course, you can count on the Tillotson HM-1 to deliver the performance you need.

Tuning & Setup Tips:

  • Ensure that your carburetor is properly cleaned and maintained before making adjustments to the high and low needles.
  • For the best performance in Unlimited All-Stars or Jr. Dragster classes, always follow the manufacturer’s recommendations for fuel and air ratios based on your engine specs.
  • The Mikuni-style boot connection ensures a secure fit, but always check for leaks after installation to ensure optimal engine performance.


Product Specifications:

  • Venturi Size: 42mm
  • Design: Diaphragm Carburetor
  • Needles: Fully adjustable high and low needles for precise fuel delivery
  • Connection Type: Mikuni-style boot connection for easy and secure installation
  • Pulse System: External pulse for optimal fuel flow
  • Engine Compatibility: Designed for 350cc engines (Unlimited All-Stars, Jr. Dragsters)

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