
| Brand | HOLLEY |
|---|---|
| Manufacturer Part Number | 556-115 |
| Part Type | CRANK |
| Performance Part | YES |
| Country/region Of Manufacture | UNITED STATES |
| UPC | 090127731147 |
The Holley 556-115 Performance Crank Trigger Kit is a high-performance solution for ignition system applications requiring a crankshaft-mounted trigger. This kit is designed to provide accurate and reliable triggering of multiple ignition coils or distributorless ignition systems.
The trigger wheel is manufactured using a billet aluminum material for strength and durability. Its 36-tooth design is optimized for use with most popular crankshaft encoder sensors, allowing for precise measurement of engine RPM. The wheel is also hard anodized for protection against corrosion and wear.
The trigger wheel is secured to the crankshaft using a billet steel hub and a set of high-strength bolts. The hub features a large bearing surface for optimal contact with the crankshaft, ensuring a stable and secure installation. The kit includes a set of O-rings for use between the hub and the crankshaft, helping to minimize any potential vibration or noise.
The trigger kit also includes a set of adjustable camshaft position sensors, allowing for fine-tuning of the ignition system based on the specific engine application. These sensors are designed to mount directly to the camshaft journal or timing gear and provide accurate position information to the engine management system.
The Holley 556-115 Performance Crank Trigger Kit is suitable for use in both naturally aspirated and forced-induction applications, making it a versatile choice for a wide range of performance vehicles. It is compatible with most popular engine management systems, including Holley EFI, MSD, Motec, and others.
In summary, the Holley 556-115 Performance Crank Trigger Kit is a high-quality, billet aluminum trigger system designed for accurate and reliable ignition system operation. Its durable construction, adjustable camshaft position sensors, and compatibility with various engine management systems make it an excellent choice for performance enthusiasts seeking to optimize their ignition system.
The Holley 556-115 Performance Crank Trigger Kit is a popular choice among automotive enthusiasts looking to upgrade their ignition system for improved engine performance. This trigger kit uses a crankshaft-mounted sensor to provide more accurate and consistent ignition timing compared to a distributor-based system. Below are some pros and cons of using this trigger kit:
Pros:1. Improved Ignition Timing: The crank trigger kit provides more precise ignition timing, which can lead to better engine performance and increased power output.
2. Eliminates Distributor: Replacing a distributor with a crank trigger kit simplifies the ignition system and eliminates the need for distributor maintenance.
3. Wide Compatibility: The Holley 556-115 trigger kit is compatible with a wide range of engines, making it a versatile option for various applications.
4. Easy Installation: The installation process for the Holley crank trigger kit is relatively straightforward, and it can often be completed in a few hours with basic hand tools.
5. Improved Fuel Economy: By providing more accurate ignition timing, a crank trigger kit can help improve fuel economy, resulting in cost savings over time.
Cons:1. Cost: The Holley 556-115 trigger kit is more expensive than a traditional distributor-based ignition system, which may be a deterrent for some.
2. Complexity: While the installation process is relatively simple, configuring the ignition system and setting up the timing can be more complex than a distributor-based system.
3. Compatibility Limitations: Although the trigger kit is compatible with a wide range of engines, it may not be suitable for all engines, so it's essential to verify compatibility before purchasing.
4. Potential for Electrical Issues: As with any electrical system, there is a potential for issues to arise, such as wiring problems or faulty components.
Conclusion:The Holley 556-115 Performance Crank Trigger Kit offers several advantages, such as improved ignition timing, simplified installation, and potential fuel economy improvements. However, it comes with some disadvantages, such as a higher cost and potential complexity. If you're looking to upgrade your ignition system for better performance and are willing to invest in the cost and potential complexity, then the Holley crank trigger kit is an excellent choice. Otherwise, a traditional distributor-based ignition system may be a more cost-effective and simpler option for your needs.
Recommendation:If you're looking for improved engine performance, increased power output, and simplified ignition system maintenance, the Holley 556-115 Performance Crank Trigger Kit is a solid investment. Ensure that your engine is compatible with the trigger kit and that you have the necessary resources and knowledge to install and configure the system before making a purchase. If complexity and cost are concerns, consider a distributor-based ignition system for a more straightforward and cost-effective solution.
Specifications: finish: black zinc oxide. Holley carburetors have powered every NASCAR sprint cup team and nearly NRA pro-stock champion for four decades. Custom 3 wire/ferrous target/hall effect sensor w/m12x1mm threads;. Trigger wheel and sensor kit-precision engineered manufactured with tight tolerances, this is designed to be installed on the crank pulley/harmonic balance offers unmatched timing stability accuracy.
Holley's products also include performance fuel pumps, intake manifolds engine dress-up for street performance, race and marine applications. Manufacturer: Holley, part number: 556-115, condition: new: ignition crank trigger kit. Mount brackets w/black anodized finish/laser etched efi logo. Crank wheel centers off of the balance hub no centering ring.
Features: black zinc oxide finish for corrosion resistance/striking looks. Wheel; 36-1 tooth; incl. Spec mounting hardware. Crank trigger kit; 7.25 in.
