7mge stock ignition curve? or anyone with factory manual?

[jeffro ra28]

Hey there.

I have been recently researching the topic of LPG systems used for turbo/performance and increased mileage applications.

I wish to modify the ignition curve of the 7mge i have running solely on gas. Mainly to improve mileage.

The injectors, fuel rails and ecu have all been removed totally from the engine.
It is running an electric igintion of some sort. Not sure what from. I have no idea as to the current ignition curve as yet. I will be checking this with a dial back timing light. I wish to compare the stock 7mge ignition curve to what its currently running and perhaps modify it to suit LPG.

Does anyone have the stock ignition curve for a 7mge?
Or does anyone have a factory 7mge manual? It may be in this

Welcome to any suggestions.

[Kroozerdave]

In the part parts manual for early 70s crown it had lpg tank and ecu listed. Appearred to me that lpg may have been a factory option. I always wondered if doing lpg conversion over here if we could get a toyota ecu to suit based on that. Maybe someone with epg and experience searching can answer if anything listed.

I have a friend with mid 70s holden who has done over 200,000 miles with lpg. He did have them redo his distributor to run better with lpg as he only runs petrol when completely out and that's not often.