Hi guys, I know everyone's been going ape about lpg gas so I thought I would look into it before the motor gets rebuilt. Any internal mods that will help it with the gas? have not started looking for a system yet but any better setups out there? Heard that with the VN's there was a issue with the coil pack? something about firing while on gas?? I have a V6 VN series1 (only had 60,000 on it) that has been sitting for around 7 years. She's been stripped and cleaned but before we get it rebuilt is there any tips or internal problems, weaknesses or items (such as timing chain) that should be addressed before its put together?? It's all going in me EH and it will be a daily driver so reliability is the key, duel fuel is just a thought. Thanks


life's to short not to be....

My injectors and petrol pump turn off in my VN when on gas and it's an old Impco unit (1989 conversion). The LPG does have it's own computer and they've only got better throughout the last 15 years. Still goes well even though the car's done a squilli

Holden released the VP V6 with duel fuel, and used the 808 ECU to control the lot. Have a look at the VP Holden manuals and see if anything was done to this engine. I know the factory install used to start on petrol and switch to gas (not sure if by time

Many moons ago, I had a VN S1 V6. I bought it with 140,000 on the clock and the timing chain was RS (but I got the dealer to change it for an aftermarket one - can't remember which brand though - before I took delivery of the car). If I had another, I'd d

You missed my point. The VP duel fuel V6 runs the same ECU and mostly everything else the same as the VN, particularly the series 2 or thereabouts (whenever the engine changed to VP specs). Therefore you can fit the VP duel fuel memcal plus whatever else

You may be lucky enough to find a smashed one or an ex cab very cheap. It may be much cheaper to do this and transfer the whole system across than it would be to get an aftermarket system fitted.

From what was said to me about the coil packs its something in the way they fire. Was told that the standard VN series1 fires not only in the cyl that's firing but also it fires in another cyl while the valves are still slightly open?? Thus causing any ga

it didn't fire the plugs, it fires the injectors.
if it fired the plugs at every TDC, then even on petrol it would explode.
eg, when cyl 1 is at TDC, cyl 4 (for eg) may be on the intake stroke.
that would then ignite the fuel with the intake valve open

I learn something every day Nut, thanx.

DO NOT WRITE BELOW THIS LINE

Thanks nut! So I guess its a catch 22, you need the cam for the gas but then it allows it blow back. No way of changing the coil pack or set up to rid that problem? guess if you could blokes would have only blown 1 airbox? The aim of my rebuild is for rel