Lucas Rita rev limiter

Hi I race a commando with a Lucas Rita electronic ignition. I want to fit an RPM limiter to the ignition has any of our members got any ideas on what to use and how to do this. Thanks.

Pazon smartfire has an adjustable rev limiter though it would mean a complete change of ignition

Thanks, yes the pazon has the rpm limiter capability, but I like the Rita and have a couple of spares.

Boyer offers a unit I have used before with a Boyer ignition. I was happy with it on a 500cc Norton ultra short stroke engine.

http://www.boyerbransden.com/rev-limiter.html

I don't if it can be made to work with a Lucas system.

Dances with Shrapnel said:

Boyer offers a unit I have used before with a Boyer ignition. I was happy with it on a 500cc Norton ultra short stroke engine.

http://www.boyerbransden.com/rev-limiter.html

I don't if it can be made to work with a Lucas system.

Click to expand...

Dances, it looks like it will 'function' with any ignition, presumably by 'counting' output pulses and switching the ignition input voltage at the set rpm.

But what is not clear is what is the voltage input to the ignition reduced to? There does not seem to be any adjustability in the reduced voltage level?

And how does the ignition you have function at that voltage. That may vary significantly.

We know for example that the analogue Boyer runs pretty poorly with a 'reduced' voltage, but that the analogue Pazon runs 'as normal' with a 'reduced' voltage, although presumably there is a voltage level at which the Pazon will also start to run poorly, it should be a lower voltage than for the Boyer.

I used a Lucas Rita many years ago, on a race bike fed by battery, when the battery discharged it just started to misfire, and by doing this it certainly limited rpm!

If you can get one of these gizmos at a good price it may be worth fitting testing and setting it into a planned hour on the dyno.