Case Studies

Fuel Economy

A case study of fuel savings attained from the installation of a top speed limiter

Carbon Footprint

A case study on the reduction of CO2 emissions at varying speeds

High Idle RPM Limiter

RPM Limiters

About the System

The High Idle RPM Controller is an entirely electronic product. It enables most vehicles from 2002 to have an increased idle RPM value when the vehicle is stationary. The high idle can be set to any value above the base RPM. The high idle is useful for vehicles that have a lot of demand on the vehicle electrical system when auxiliary equipment is attached e.g. generators and power equipment. Enabling the high idle keeps the battery charged and power demands under control when the equipment is running on the


Key Features:

•   Idle speed can be increased e.g. 1250 RPM

•   Reversible - Can be removed by our engineers 

•   E Mark Certified



•   Relieves demand on vehicle power system

•   Allows auxiliary equipment to be run from the vehicle

•   Built In safety features


More Information

RPM limiters are becoming a very popular choice for our fleet customers. There are multiple benefits of limiting the engine RPM including reducing fuel bills, reducing stress placed on the engine and drivetrain components and protecting the safety of your fleet drivers. The RPM limiter is ideal for situations where fleet vehicles are driving at lower speeds where the benefits of just a top speed limiter wouldn't come into effect. Successful installations on various large fleet and council vehicles has proven to be effective at both reducing fuel bills and component wear.