Bee R Rev Limiter Wiring Diagram: Installation Guide

Understanding the Bee R Rev Limiter
The Bee R Rev Limiter is a popular aftermarket device used to control engine RPM in performance vehicles. This two-stage ignition cutting rev-limiter prevents damage from over-revving and allows for launch control functionality. Installing a Bee R Rev Limiter requires careful wiring to ensure proper operation and avoid potential engine damage.
Wiring Diagram Overview
The Bee R Rev Limiter uses a color-coded wiring system for easy installation. Here's a breakdown of the wire colors and their functions:
- Red: Connects to the ECU's B+ (12V power supply)
- Black: Grounds to the vehicle's chassis or battery negative terminal
- Yellow: Connects to the RPM signal wire (often labeled IGF)
- Green: Connects to the ignition signal wire (often labeled NE)
- White: Optional connection for side brake switch signal (launch control)
Installation Steps
Step 1: Locate ECU Pins
First, identify the correct ECU pins for your specific vehicle model. Consult your vehicle's wiring diagram or the Bee R installation manual for precise pin locations.
Step 2: Prepare Wiring
Carefully strip the ends of the Bee R Rev Limiter wires and the corresponding ECU wires. Use heat shrink tubing to protect connections.
Step 3: Connect Power and Ground
- Connect the red wire to the ECU's B+ pin or a 12V ignition-switched power source
- Attach the black wire to a secure chassis ground point or the battery's negative terminal
Step 4: RPM and Ignition Signals
- Splice the yellow wire into the RPM signal wire (IGF)
- Splice the green wire into the ignition signal wire (NE)
Step 5: Optional Launch Control
If using launch control, connect the white wire to a ground-switched input, such as the handbrake switch.
Configuring the Rev Limiter
After installation, you'll need to set the rev limit using the device's dials:
Dial Setting | RPM Limit |
---|---|
0 | 2500 |
5 | 5000 |
A | 7500 |
F | 10000 |
Adjust the "GAIN" dial to control the aggressiveness of the rev cut.
Testing and Troubleshooting
After installation, start the engine and test the rev limiter at a safe RPM. If the limiter doesn't engage, double-check all connections and ensure the unit is receiving power.
Safety Considerations
Warning: Improper installation can lead to engine damage. If you're unsure about any step, consult a professional mechanic or automotive electrician.FAQs About Bee R Rev Limiter Wiring
- Can I install a Bee R Rev Limiter with a standalone ECU?
Yes, but you may need to consult your ECU's documentation for proper signal wire identification. - Does the Bee R Rev Limiter work with all engine types?
It's compatible with most gasoline engines, but always verify compatibility for your specific vehicle. - How do I set up launch control with the Bee R Rev Limiter?
Connect the white wire to a ground-switched input and use the second dial to set your desired launch RPM.
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