Outer Limits 4x4 Board

have an mk triton that been on gas for 2 months now and everything going good just wanna no if anyone has had any long term effects from it?

Keep upper valve lube kit on it.

Good idea is to put a couple of clamps on the pcv hose, s@@t to get to but if they back fire will pop the hose off and wont idle much easier to put hose clamps on it when its cold rather on the side of the road when its hot.

the only long term effects from lpg on my triton have been a fatter wallet

If i didnt want the luggage space and under side clearance id do it to mine

mine is mounted on the other side of the underbody from the petrol tank, so the spare stays where it is and there is no loss of cargo area, and it's only a 60ltr tank so there's no loss of underbody clearance either, it's a win win situation.

Hi Guys

Resurecting this thread as I'm looking to install LPG on my Triton and am leaning toward mounting the tank underneath. Are ther any gotchas that I should be looking out for? Also what sort of fuel consumption are you guys getting out of them? Just trying to work out expected range from the tank.

The bloke that is quoting me reckons he can only fit a 53L tank in where the spare is but the risk of smacking the tank on the deck and the small capacity doesn't make that option so appealing. Xagtho's setup sounds sweet so I'm gonna chase up that option today.

Thanks folks

my tank is under the body aswell it is a win the only prob thats where the exhaust goes. the people that did mine just ran the exhaust under the tank so it was lowest point. not good. got that rectified now and it all good. will take some pics of install tomorrow to show

Swaddo, if you put your tank in place of your spare you could fit a 90ltr tank or bigger.

If you go for the small tank it can fit in the underbody on the opposite side from the petrol tank you just have to re-route the exhaust, the spare stays where it is, but you can only fit a 60 ltr tank, which is 53ltrs usable.

I only have the smaller tank in the underbody with the exhaust re-routed, it gives me an average range of about 300k per tank around town while pushing 33's, I would like it if it was a 1000ltr tank so I would only have to fuel up once a month, but in reality I can afford a couple more fuel ups per month for the price of running on lpg.

FYI, with todays lpg prices I average a running cost of about $9.20 - $9.60 per 100klms.

thanks for the feed back guys. exactly what I was after.

Cheers

here are the pics of the install was really happy except for the idiots who did the exhaust so got it redone recently

Thanks dig

I've had a chat with gas fitter near work and he happened to have 2 tritons in there (1 was his) so I was able to crawl around under them. I'm probably going to go with him. He also manages to tuck the tank(s) right up, and does the right thing with the exhast

I'm also considering a dual tank system o boost my range if the cost isnt ridiculous

another question, anyone know anything about flexible lines? one of the other guys I was talking with made a big fuss about the fact the he runs flexible lines throughout

Cheers
Blake

the flexible hose shouldnt be a prob it a 4wire braid hose. mine only uses that from the fill point to the tank the rest is all copper pipe

Thanks for all the info folks. I've got the beast booked in for Feb to get the system fitted. I decided to add 2 tanks under the tray so that I will have a usable range on LPG. With full fuel and LPG tanks I should have roughly 1000km range.

I'll post a few pics after it is done

Cheers
Blake

Swaddo:
One thing to remember about gas is the possibility of engine backfire, resulting in a blown air cleaner housing and possibly the airflow meter. Expensive... Also you tend to pop off the crankcase PCV hoses, but in many ways that is better because that tends to limit the pressure rise elsewhere.

Backfires occur when the spark prefers to jump to another lead rather than the one which is due to be fired. Mistubishi, in their wisdom, run their High Tension leads very close to each other. Remember that the spark always takes the easiest path to earth. If the spark plug gap is too large the spark energy will find another easier way to earth. A bit of crud on the leads and if you are lucky it will short to earth, if you are unlucky it will jump to the next spark plug lead. If the inlet valve is open on that cylinder at that time, you get a backfire. The reason it is worse with the older style mixers is that you have a manifold full of volatile gas, whereas teh newer injected gas systems have much less volume of gas to explode. Result is a "Pop" instead of a "Bang", and believe me they do go bang, especially at full throttle. I speak from experience.

Keep your HT leads clean and as separated as possible. If possible, close the spark plug gap down slightly (to minimise the voltage needed to jump the plug gap) and you should have no problems.

well, I finally got the LPG installed. got 2 tanks mounted under the tray (roughly 100L usable capacity) and I must say I am underwhelmed.

Currently she's chewing through 22-25L of gas / 100km, which roughly works out at $1 less than ULP per 100km , and about 50% higher consumption than what others are reporting from the same vehicle. Not sure what I can do about this, I've already had it serviced again to see if this can be rectified and it made no real difference

Also the bloke who installed the system managed to tack weld the bash plate to my rear cylinder, which as far as I know means the tank would fail an inspection (He claims it would pass fine and wants to grind the weld back ... i dunno if I'm keen on that )

If anyone in the industry knows the implications of welding the cylinder I'd be interested to hear.

On the upside, the cylinders are tucked well up out of the way so I wont have any clearance issues ...

Cheers
Blake

swaddo wrote:well, I finally got the LPG installed. got 2 tanks mounted under the tray (roughly 100L usable capacity) and I must say I am underwhelmed.

Currently she's chewing through 22-25L of gas / 100km, which roughly works out at $1 less than ULP per 100km , and about 50% higher consumption than what others are reporting from the same vehicle. Not sure what I can do about this, I've already had it serviced again to see if this can be rectified and it made no real difference

Also the bloke who installed the system managed to tack weld the bash plate to my rear cylinder, which as far as I know means the tank would fail an inspection (He claims it would pass fine and wants to grind the weld back ... i dunno if I'm keen on that )

If anyone in the industry knows the implications of welding the cylinder I'd be interested to hear.

On the upside, the cylinders are tucked well up out of the way so I wont have any clearance issues ...

Cheers
Blake

did you get the old mixer style gas or injection gas, if its the old mixer style im not supprised, if its the injection styl the id be taking it back

It's not injected, i was told i didnt need it

swaddo wrote:It's not injected, i was told i didnt need it

You got screwed. Try the Office of Fair Trading, or whatever the equivalent is in your state. The guy is a shonky operator (welding to your tank? ) and shouldn't be allowed to continue in business.

Swaddo, if you're using say 24L of lpg per 100 kays at say 0.43c per litre (which is the last price I paid for it) that means that it cost you $10.32 to drive 100 kays.

For your car to be costing you less than $1 per 100 kays more to run on petrol you must be getting around 9.1 litres per 100 kays fuel consumption on petrol, based on a price of $1.21 per litre. (which is the last price I paid for it)

9.1 litres per 100 kays is pretty impressive in a triton V6, as all three of mine over the years have returned average figures of 16-17 litres per 100 kays on petrol, no matter how I drove them.

My last two tritons have had the older style converter LPG systems installed, and they were both fairly consistent in their fuel consuption, both acheiving an average of about 18-19 litres of LPG per 100. Lets say on the last fuel up the old girl used 19 litres per 100 at 0.43c p/l, that equates to $8.17 per 100 kays, (I am actually acheiving under $8 with todays prices).

Also lets say I used 16L petrol to 100 kays on the last tank, at $1.21 p/l it eqautes to a cost of $19.36 to 100 kays, (In reality it costs me pretty much $20 spot on.)

If you are indeed using 22 - 25L per 100 with your setup then you are having some efficiency loss in your system.

If you are acheiving 9.1L per 100 on petrol then my tritons in the past and still now are suffering from major petrol efficency issues which I would like to get sorted.

Hi mate, prices here are a little different to you guys

$1.08 for E10, an I got an average of 14L/100km on the highway last time I checked = $15.12 per 100km
62c per litre for LPG, and last trip (all highway) i got 22.8L/100km = $14.09 / 100km

When I lived in town and I did stop/start driving I got the sort of consumption on E10 you are talking about (17L/100km)

He reckons he'll back off the gas again for me next week. I'll record the figures again for both gas and E10 and see how it goes.

-Scott- wrote:

swaddo wrote:It's not injected, i was told i didnt need it

You got screwed. Try the Office of Fair Trading, or whatever the equivalent is in your state. The guy is a shonky operator (welding to your tank? ) and shouldn't be allowed to continue in business.

x2, injected would have given nearly the same performance figures as normal fuel and at (what i have gathered from other reports) half the gas consumption ur experiencing now