what do i need to change my lpg from carbed to injection

rufftang

hi all ive got a county with a 3.5 v8 on carbs with lpg. i want to change the engine to efi but what would i have to change on the lpg system ?

cheers mike

spannerman69 · Posted: Wed Sep 10, 2008 9:49 pm Post subject:

i think it all depends on the set up you have ,mine was just a mixing ring in the air intake pipe , there was a switch to turn the gas on and the injectors off.

rufftang · Posted: Thu Sep 11, 2008 10:21 pm Post subject:

the gas goes to a box then gas comes out of that gets spit i to 2 and goes before the carbs

spannerman69 · Posted: Fri Sep 12, 2008 8:08 pm Post subject:

it would a big help if you can post some pics of what you have.

nivaman · Posted: Fri Sep 12, 2008 8:15 pm Post subject:

I think injecting LPG is far superior to injecting petrol, ie cheaper but i think there is still some loss of power? not much mind.

ELVIS. · Posted: Thu Sep 25, 2008 6:02 pm Post subject:

if you are going to be running on lpg , why go to the time/expence/effort of switching to efi ?
if you mean switching to sequential LPG injection your looking at big bucks.
If you are adamant you want to switch to efi , then all you will need is a pair of emulators and a different mixer. (if you have a flapper AFM you need a mixer that is installed 'upstream' of the AFM).If you go for Hotwire injection you will need to install all the lambda gubbins.
End of the day , you wanna run a V8 on LPG 99% of the time . (maybe running on petrol when its really cold for a few mins).Why install an injection system that will never be used?
leave it on carbs and save ya money.
If your desperate to spend money , take it to an LPG specialist and spend £40 getting the vaporiser/powervalve set up .Should also be able to optimise timing for lpg.