Thread: P38A 4.6 & LPG conversion info

is that price for LPG fumigation or sequential vapour injection?

I have converted my P38 and purchased the top of the range sequential vapour injection system, with a 72 usable litre donut tank in the wheel well. I considered that there was insufficient ground clearance to suspend the spare under the body, so it sits in the rear luggage space.
Cost was $6,700 less the $2,000 rebate and included a new high quality wiring loom. Fuel consumption is around 4.5 - 4.7 km/litre in freeway crawling at peak periods and I am still playing around with that to improve it slightly. Fuel consumption in normal free running and highway cruising is much better. Even allowing for 4.5 km/litre, my fuel cost per week has dropped by $80.00 so it is well worth the effort. Performance is outstanding except for high revs acceleration, when it automatically switches back to petrol for 10 - 20 seconds.
My conversion was done by Deacon Automotive in Bentleigh east. - Good guys to deal with and they have all of the right gear.

I consider that it was well worth the expense.

Jim Bellew
99 Vogue on gas - Love that air suspension.

Wow that's a lot of money!

I got a second-hand Impco system put in (the old style) for $400, 70liter tank, still have my petrol and I'm getting 4.5-4.7k's a liter although a slight loss in power.

I imagine though that the sequential vapour system has some other benefits that the older system doesn't have.

Cheers, Pete'

pete,
Yes it is a lot compared to your S/H system, but my system uses the P38's computer to constantly analyse the mixture and adjust as necessary, plus there is no noticeable power loss. Based on your consumption figures, I will definitely be on to Deacon's to do something to improve my consumption!

Jim

Thanks for your comments guys..

The $3200 quote is for :

• Impco gas mixer system
• 70 litre donut tank
• Gas filler fitted next to petrol filler
• Mount spare wheel to a new bracket underneath
• New spark plugs and air filter
• 3 year warranty

Take the $2k rebate off and suppose it's not too bad for $1200..

Takes them 2 days..it's AG Autogas in Melbourne and apparently the owner drives a Rangie with this Impco system and thinks it's the dogs bits..suppose he would say that anyway ..

I'm still waiting for a couple more quotes to come in and hopefully can get someone more local to do it for me..

If not..Melbourne here I come !

Will let you all know how I get on..

cheers,
Richard

Try KLR Automotive in Kingswood (Penrith, Western Sydney 02 4721-3675). They've just put a sequential gas injection system on a P38A for a lot less than that.

They'll be doing mine in the next couple of weeks (I have my old venturi mixer system for sale - cheap.....)

If the mob in Melbourne put the spare wheel underneath, there'll be bugger all ground clearance.

Thanks Ron...good to see you back ...

Good timing on your part...all of a sudden there are 4 threads on P38's needing your attention !

Will give KLR a call and see what they can do ..

The Impco gas mixer is a conventional system and I think the cost for a Impco sequential vapour install is about $5000 at AG Autogas.

Not found anyone in Canberra who carry out LPG installs on Rangies !

Have one more to try in Canberra , as I would like to keep it local in case of any future issues..

Will keep everyone updated on how I get on.

cheers,
Richard

At least Sydney is a lot closer than Melbourne.

Oh, when I referred to price for the install, I mean a lot cheaper than the $6,700.