Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
Thanks for replying and I'm still at the experimental stage.I've unhooked the auto choke and see what happens in the morning.I know that VKs were always a hard starter when cold.I'm thinking that when the choke butterfly is closed there would be a gas restriction until it is warm enough to retract?
mate have a talk to a gas installer and see what he recons, having a better ignition system and higher compression will help gas ignite too.
rubbishbut they can run fine on systems set up for petrol,
there isnt much that can be done about compression other than shaving the head
actually there is a lot more you can do to increase compression; thicker gaskets, flat tops.... turbo
rubbish
lpg needs colder plugs and f'k load more timing to run properley. this "dual fuel" business is just a joke. either you get a tune for gas or get a tune for petrol, there are no in betweens.
and as far as you starting issues goes, your probably finding that your mixer is empty and its taking a while to fill. sucks to be on gas. but thats what you get for using a cheap crappy fuel that isnt designed for your engine.
there isnt much that can be done about compression other than shaving the head
actually there is a lot more you can do to increase compression; thicker gaskets, flat tops.... turbo
Perhaps I should have said "done easily or cheaply", but adding thicker gaskets will lower the compression .
Also, yes turbos raise the pressure of the mix before being fed into the cylinder but do not affect the compression ratio, this is strictly the ratio of the volume of cylinder at bottom of the stroke/ volume at tdc.