Pics of LPG setups on EFI V8's wanted.

[Lotz-A-Landies]

Hi people

I have a 4.6 EFI/Motec with dual fuel with a AirRod converter/regulator on my RRc, I also have the mixer plate off an '89 RRc which fitted to the front of the MAS.

Today I was removing a 4.6 from a D1 to use in my SIIB project. The donor vehicle has an Impco gas system where the converter and regulator are two different components.



I don't want to go to either the expense or complexity of injected gas but I want the best and hopefully simplest system available for when I am travelling. (Things always fail at the worst possible time and in the worst possible location, thank you Mr Murphy) I have been advised that SprintGas converter/regulator are the most trouble free.

Can people post some pics of the LPG system on their V8's so I can get a better understanding of whats out there and I can get a suitable system for my SIIB conversion?

Diana

[Lotz-A-Landies]

O.K. So no one has an LPG system on an EFI V8.

The Impco system will be too awkward under the restricted space in the f/c engine bay (same space as the seat box in the 110, without the space where the fuel tank and battery box usually are) so will have to look elsewhere!

[up2nogood]

I'm using a Gas Research LPG carburettor on a Thor manifold. Separate Century convertor. But then I have lots of room, so no dramas.

But it's still in bits, still working out how to blank off the EFI injector holes. So a pic wouldn't be worth two knobs of goat poo.......

[scarry]

Diana,sorry cant help you with set up on LR's,as i have no experience,but this may interest you.I have a number of Mitsi vans on LPG,& we are finding the Lpg Sprint Gas (not injection),Only seem to last around 130000 k's approx.The converter then needs replacing,and sometimes the computer.

My gas man has also had problems with every Sprint Gas injection system he has ever fitted,injector problems.

He is now using Impco.

We have now gone to Hi aces,& they are fitted factory with Landirenzo injection systems,so far,no problems.They also use less LPG,even though they are heavier,&bigger.

Hope the above is some help....

[rovercare]

But it's still in bits, still working out how to blank off the EFI injector holes. So a pic wouldn't be worth two knobs of goat poo.......

Welch plugs, yep, they come that small

[Lotz-A-Landies]

... I have a number of Mitsi vans on LPG,& we are finding the Lpg Sprint Gas (not injection),Only seem to last around 130000 k's approx. The converter then needs replacing,and sometimes the computer.

My gas man has also had problems with every Sprint Gas injection system he has ever fitted,injector problems.

He is now using Impco.

We have now gone to Hi aces,& they are fitted factory with Landirenzo injection systems,so far,no problems. ...

Thanks for that information, interesting about the SprintGas .... I got a report similar to that about the AirRod converter-regulators (when my diaphragm failed), was told that SprintGas was usually the one fitted as a replacement and it was the industry standard for Taxis.

My problem with Impco is having the space for two components the same size as the AirRod one. The forward control has a wheel on either side of the seat box and with the V8 the remaining engine bay will be very crowded, with additional items like the gear lever replicator mechanism which runs over the top of the engine.

Will investigate Landirenzo!

[up2nogood]

Welch plugs, yep, they come that small

Sweeeeeeeeet! Was thinking that would be a good solution that didn't involve welding!

[Lotz-A-Landies]

I'm using a Gas Research LPG carburettor on a Thor manifold. Separate Century convertor. But then I have lots of room, so no dramas. .....

Not an option, if I want to have dual fuel as there is still no LPG in lots of places and it will never be in places where you have to pump from drums like the fuel dump on the Canning stock route.

[up2nogood]

Not wrong. The Disco I'm doing is a daily driver/ highway and 'close to fuel' runner. No damn way I'd go the CSR, etc, in it.

Long distance is a diesel Bushy.

If you're sticking with dual, and want it simple, the good old mixer ring in front of the efi throttle body is simplest. You will also need a switchable/programmable distributor as LPG and petrol use different advance curves. This is the main reason why people say their car is gutless on LPG, or pings on petrol. The Italian sequential LPG systems are flash, and work best, but they're electronic so have more goodies. Still, I don't believe they're unreliable.

[Lotz-A-Landies]

Yes I happy with the LPG system on my RRC, it uses the gas ring you speak of coupled to the AirRod converter regulator. The engine management is Motec as my RRc was a carby unit and Cooper's in St Peters (didn't fit the gas) have activated the switchable option in the M48 programmable ECU (usually used for running nitrous) to change the curve.

I have 87 Kw on LPG and 94 Kw on unleaded using their rolling rack Dyno.