Thoughts on this LPG mixer

[mark2]

I'd be interested to hear thoughts on this type of lpg mixer for a 3.9.
LPG Carburetor for V8 Land Rover Range Discovery! LOOK! on eBay (end time 06-Mar-10 17:33:11 GMT) (http://cgi.ebay.co.uk/LPG-Carburetor-for-V8-Land-Rover-Range-Discovery-LOOK_W0QQitemZ160401381447QQcmdZViewItemQQptZUK_Ca rsParts_Vehicles_CarParts_SM?hash=item2558aad847)

I haven't come accross this type before - it potentially looks like a much more efficient system than the venturi type.

[bee utey]

I'd be interested to hear thoughts on this type of lpg mixer for a 3.9.
LPG Carburetor for V8 Land Rover Range Discovery! LOOK! on eBay (end time 06-Mar-10 17:33:11 GMT) (http://cgi.ebay.co.uk/LPG-Carburetor-for-V8-Land-Rover-Range-Discovery-LOOK_W0QQitemZ160401381447QQcmdZViewItemQQptZUK_Ca rsParts_Vehicles_CarParts_SM?hash=item2558aad847)

I haven't come accross this type before - it potentially looks like a much more efficient system than the venturi type.

Possibly! Impco makes the same kind of superior claims, so does Gas Research. It is likely much better than a poorly designed venturi!:)

For example I have here a picture of a mixer type typically fitted to Rover V8's in Australia by "normal" fitters, it has a poor shape and a 38mm bore. On the right is the mixer that I use on 3.9 and 4,6 engines, it has a proper venturi shape and runs a 46mm bore. It works well coupled to an actual LPG processor and is my personal favourite for economy and performance.

[mark2]

Possibly! Impco makes the same kind of superior claims, so does Gas Research. It is likely much better than a poorly designed venturi!:)

For example I have here a picture of a mixer type typically fitted to Rover V8's in Australia by "normal" fitters, it has a poor shape and a 38mm bore. On the right is the mixer that I use on 3.9 and 4,6 engines, it has a proper venturi shape and runs a 46mm bore. It works well coupled to an actual LPG processor and is my personal favourite for economy and performance.

Could you explain what you mean by 'LPG processor' - is this a special type of convertor?

I currently have twin mixers on my carbed 4.3 but am considering dropping in an injected 3.9, hence looking at mixer options. Will probably have to change the convertor also due to it having twin vapor outlets.

[bee utey]

Could you explain what you mean by 'LPG processor' - is this a special type of convertor?

I currently have twin mixers on my carbed 4.3 but am considering dropping in an injected 3.9, hence looking at mixer options. Will probably have to change the convertor also due to it having twin vapor outlets.

No dramas with the converter, if its running two outlets you get one of those rubber chair tip things for the unused one. Sounds like an OMVL, they run quite happily with one outlet.

A LPG processor is a little black box that reads the throttle position sensor and oxygen sensor on an EFI engine, says "you're rich" or "you're lean" and adjusts an electric mixture valve in your main gas hose. In a Landy you would need to retrofit a sensor, not particularly hard. The main benefit of a processor is that it monitors the mixture ALL THE TIME not just when its on a dyno. And the good ones have rich/lean lights to assist with tuning.

The linked mixer you showed could possibly have a maximum flow rate less than my favourite 46mm device, can't tell from the picture. I have seen a couple of similar devices which were quite daft.

PM me if you want detailed advice about gas stuff for your truck.:)