This product is designed for use with aftermarket engine control units (ECUs);. It is not compatible with OEM Honda ECUs, including Hondata S100/200/300.

We believe that in 2023, the advancements in ECU technology and software strongly justify the cost and effort to install a stand-alone ECU to your vehicle over using an OEM ECU.

Honda distributors from the 1990s are over 20 years old and, for all intents and purposes, discontinued.

We wanted to create a solution where spare parts would be easy to source while retaining OEM reliability.

From that concept the idea to retrofit Honda K-series cam angle sensors (actually found in many modern Honda engines) onto the older D-Series and B-series engines was born.

Key Benefits

1. Modern aftermarket ECUs, like the Haltech Elite series, for example, allow for a 32×32 cell ignition tuning table. This significantly increases ignition timing resolution and is not dependent on the trigger tooth pattern. The Honed trigger kit is perfectly suited to allow for high-rpm trigger syncing with such ECUs. It is important to note that it’s the ECU platform, not the trigger tooth count, that impacts timing resolution. For reference, OE Honda ECUs have a 16×16 cell table and Hondatas have a 20×24 table size.
2. The Honed Trigger Kit does not have any soldered components or microprocessors inside it. The mounting of OE Honda cam sensors is done in the same way as on its modern L- and K-Series engines.
3. The sensors used in this kit are available in any market Honda cars are sold and can easily be found at short notice.
4. This kit does not require any modifications to the timing belt side of your engine.

Specifications

Necessary Items

• You will need a cam drive from an old distributor
• You will need two Honda Hall Effect Sensors
  • The relevant part number is: 37510PNB003
  • These can be found on a huge number of Honda vehicles produced from 2002 onward such as the Honda Civic, Jazz/Fit, CR-V etc. They are used on K-series and L-series engines (among others)
  • They can typically be found mounted in the head

Installation Manual

HDP40-01 – D&B Series Trigger Kit

Product History

• Developed to solve the need for a trigger kit for our D16a3 engine build and as a replacement for the now-discontinued AEM unit on the B18c2 in our EH9
• First prototypes produced in February, 2023
• First dyno session with Honed Trigger Kit March, 2023
• First track event with Honed Trigger Kit September, 2023 on the D16a3 in the Honed AH Civic
• Since September, that development car has completed six track days without issue
• Over 85 kits have been sold as of September, 2024