|
|
Post by James W on Jan 13, 2006 7:23:59 GMT 11
What a good idea, I like the simplicity of the pressure switch and solenoid valve. I aquired a bunch of 12V solenoid valves recently.... I may have to do some experementing.
Do you have any idea of the LPG flow rate? or what is the optimal flow rate, at least in theory?
|
|
|
|
Post by namic69 on Jan 13, 2006 19:32:20 GMT 11
Their is a lot of good information available on the net but be careful, too much LPG and you end up a bit metal door stop........
On average it seems safe to acquire 30% more power from research done and dyno figures have put me at 20% so not likely to got too much further. Reg from BBQ is for 3 burner BBQ!!!!!!!!!!
|
|
HiMuZuLux
Isuzu Junior
IFS: A great reason to own a 9" angle grinder :)
Posts: 125
|
Post by HiMuZuLux on Jan 20, 2006 22:49:13 GMT 11
Would love to see some pics and notes on your install...  Steve |
|
|
|
Post by daniel on Jan 25, 2006 10:26:35 GMT 11
|
|
|
|
Post by namic69 on Jan 28, 2006 8:07:31 GMT 11
   The above pics show inside the truck where I have a tap to control the flow (if towing and only want a little boost). When 4wd'n in sand I open the tap all the way but for around town towing etc half on is enough. Below the gear lever is two switches, one for the intercooler fan and the other to the lpg circuit. In the engine room I have installed a boost pressure switch (set at 6 psi) that switches on the little blue gas solenoid. The whole system cost me about $300. A small gass bottle is located in the back and I am going to install another gass solenoid straight to the bottle, switched off the ignition. |
|
|
|
Post by namic69 on Jan 28, 2006 8:16:03 GMT 11
|
|
|
|
Post by mulover on Jan 28, 2006 13:22:12 GMT 11
Hey namic 69, i'm really keen to do pretty much what you have done, you couldn't tell me where you got the boost pressure switch from could you plese??
|
|
|
|
Post by namic69 on Jan 29, 2006 9:16:37 GMT 11
Repco for the boost switch, as for the gas solenoid i'm not sure about where you can get one from down there. I got mine from BEP Marine for about $90.00. Worst case I could arrange to have one sent down to you.
|
|
HiMuZuLux
Isuzu Junior
IFS: A great reason to own a 9" angle grinder :)
Posts: 125
|
Post by HiMuZuLux on Jan 30, 2006 13:50:36 GMT 11
Whats the WOF man got to say about it? I believe its illegal to have gas set up like that, and that you may have to get a proper, if small, LPG tank fitted by a qualified LPG centre and have proper hard lines run to the engine bay. I went through this with my Hilux getting it LPG'd and apparently there are some strict rules governing the use of LPG for any purpose in a motor vehicle. You can't even have a little outlet on the side to run a BBQ  It looks good tho, I would like to give it a go on mine but I can't reach the engine bay any more... pissed off some little kid at a petrol station by asking him to check the oil... sadistic bugger that I am Steve |
|
|
|
Post by mulover on Jan 30, 2006 17:19:17 GMT 11
Thanks namic69, have got a boost switch to play with and i can get the soluniod valve easy too. Was talking to the local lpg installation guy and he said that to do this legally then it would have to have lvvc done, and to the lpg guide lines. He recommended putting the bottle outside the cabin, and suggested using likes of a primus cartridge instead. I presume this would still give the desired affect, and this way it could all be mounted under the bonet which would mean alot less piping and it would be alot safer too as it wouldn't matter if you had a slight gas leak, and easyer to hide from the wof man if it is not certifiable.
He also said that it would have to be the copper line thats about $35/metre or the copper coated tubing and use the special mounting brackets along the chassis.
Another thing that he mentioned is that in the case of an accident and there was a leak or the regulator got broke off or something then the gas will just keep coming out, where as with a proper lpg vechile tank there is a special shut off valve that senses pressure or somthing that will shut off in a bad situation.
Am going to ring the local certifier and see what he has to say, i want to keep it as legal as possible since i'm gonna get everything certified this year sometime!!
|
|
|
|
Post by namic69 on Jan 30, 2006 18:30:17 GMT 11
I fully agree. I have only gone with the bottle in the back to be sure that the system works well before I spend money for a proper installation.
The project has evolved some but I am convinced that it works well even tho I have only been out playing with one other Bighorn.
I will go for a proper tank installation and keep the boost switch etc but have it all connected to the ignition supply.
|
|
|
|
Post by namic69 on Jan 30, 2006 18:31:10 GMT 11
P.S I just remove the tank for a WOF and coil the hose and reg up under the seat  |
|
|
|
Post by geeves on Jan 30, 2006 18:44:39 GMT 11
one way to keep it hidden from the wof man would be use the very small camp stove cylinders. They make a 100g one which would completly hide in the airbox. It would work out an expensive way to buy gas though although I have heard of someone during my time with the scouts that was refilling these bottles from a 9kg bottle. Im not convinced refilling these disposable cartrages is a good idea
|
|
HiMuZuLux
Isuzu Junior
IFS: A great reason to own a 9" angle grinder :)
Posts: 125
|
Post by HiMuZuLux on Feb 2, 2006 9:14:39 GMT 11
Its interesting how many ways around things there are, but I believe the best course of action (god I must be getting old) is to do it all above board. If anything happens and its illegal you have no insurance, and thats about as good as it gets... if someone is hurt then you could be up for criminal charges etc etc yadda yadda. Not sputing the gospel, just adding food for thought.
On that note, I told my insurance company (I'm not going to publicly STATE which one) too much about my MU and now they won't insure it at all! Apparently 20% of the value of the vehicle is all you can spend modifying it! I would think a bighorn (thinking of mine) which is worth say $2000, with a $2500 LPG system fitted (Thats what it costs roughly to have a petrol engine fitted to run LPG) would be aff the scale well and truly...
Steve
|
|
|
|
Post by geeves on Feb 2, 2006 14:15:57 GMT 11
Lpg on petrol car is not considered a performance modification. NZ4WD Association have a insurance policy arangment with an Auckland broker that covers all modified trucks and all off road except compitition. Actual cover is with Lumlys but a special policy. I think the website is www.barley.co.nz. If its wrong Ill repost tonite. I think they will except non assoc people now for this ins as well |
|
|
|
Post by mulover on Feb 2, 2006 19:24:56 GMT 11
I'm hearing you steve, i won't STATE the name of my insurance company either, but i was a good boy and told them all of the mods i have been doing so they new what had been changed and they told me that they where only interested in the affect it has on the theft value and that i'm not supposed to do anymore to my truck, but that was $1000 dollars ago, and i bet they would ping me if i had a crash!!!
Anyways, i'm thinking of using or trailing with one of those primus throw away canisters, i don't know what the propane/butane mix will be like compared to lpg, but i'm sure it will go bang, and when you think about how long one of these canisters lasts on a cooker, and considering we would only be using it off and on, then it may just be the goods, and it will fit in the engine bay.
But thats just my thoughts, better go do the dishes!!
|
|
|
|
Post by James W on Feb 3, 2006 6:51:55 GMT 11
LPG/Butane/Propane liguid and gas mixes in a pressure vessel is in a fine balance. I was reading my flatmates notes from a LPG systems course, which I'm now strugling to remember the fine detail of.
The point being do not let the canistor get hot or even warm..... Booooom. The engine bay may not be the right place to keep cool. Secondly there are many sources of ignigtion in the engine bay.
Certainly it should be outside the passenger cabin.
|
|
|
|
Post by geeves on Feb 3, 2006 15:00:04 GMT 11
Realy I would expect a cartrage to only last maybe 30 min tops. Your going to be drawing a lot more gas than a camp stove. The average camp stove only has a 6 - 8 kw output. Your expecting at least double that.
Also I was jokeing about the small cartrages inside the aircleaner for the reaon above and issues of heat and vibration.Colman make a much heavier disposable cartrage that might be ok for testing but if you use a large drawoff for any time from a small cylinder the gas will freeze which will seperate some lpg mixes. My 5 kilo bottle will freeze on my 3 burner bbq even in hot sun
|
|
|
|
Post by geeves on Feb 5, 2006 7:37:48 GMT 11
|
|
|
|
Post by mulover on Feb 5, 2006 12:15:34 GMT 11
Just had a look at the gas canisters and they say not to be exposed to more than 50 degrees, so that stuffs that!! I guess one of the small lpg gas cooker bottles (3kg?) mounted somewhere underneith would be the only way to go, that could be fun!! or a challange???
|
|
