System Upgrades

A closed-loop system continuously monitors the exhaust gases to determine if the mixture is too weak or too rich, and then adjusts the mixture to compensate for varying loads and driving styles. This type of system gives better performance/economy than an open-loop system.
This upgrade kit contains all of the components needed to convert an open-loop, single-point induction system to a closed-loop system, i.e. lambda probe, boss (to weld into the exhaust system), lambda control unit, loom and stepper motor valve.
The lambda control unit is tuned using the integral lights that show when the mixture is weak or rich (so you don't need a laptop PC).
Suitable for carburetted and injected engines.

This display can be mounted inside the vehicle, up to 6 feet away from the VIP100 control box, thus facilitating the tuning of the system.
It allows you to see if the mixture is rich or lean as you drive.

A closed-loop system continuously monitors the exhaust gases to determine if the mixture is too weak or too rich, and then adjusts the mixture to compensate for varying loads and driving styles. This type of system gives better performance/economy than an open-loop system.
This system contains the lambda control unit, loom and stepper motor valve.
It is designed to work with a lambda probe signal working in the range 0-1 volt.
The lambda control unit is tuned using the integral lights that show when the mixture is weak or rich (so you don't need a laptop PC).
Suitable for carburetted and injected engines.

This is a 4-wire lambda probe that produces a signal ouptut of 0 to 1 volt.
The boss should be welded into the exhaust pipe as close as is reasonably possible to the manifold.

These are normally NTK probes.

This lambda control system comes with a 2-position change-over switch and loom, as well as the control box and stepper motor (and is almost identical to the AEB Leonardo system).
It is suitable for single-point induction systems fitted to petrol-injected engines with metal inlet manifolds, built before 1999. The engine must have a lambda probe fitted in the exhaust, either as original equipment or as an upgrade.

You will need a laptop PC to set up the system.
You will need the software and a lead to connect to the PC (sold separately).
Not suitable for carburetted engines.

The Eco-Vac can be installed into any single-point induction system (i.e. any carburetted engine or any injected engine with or without a catalytic converter) as part of the original installation or at a later date.
It will automatically adjust the volume of gas fed to your engine to give you just what you need. It uses the inlet manifold pressure to judge the demand for gas, and adjusts the power valve accordingly.

So, if you are looking to refine an existing installation, and don't want to get involved with electronic mixture control (Lambda) systems, this could be your answer.