propane injection, info required HELP!!

hello all, can anyone help me with propane injection? I am goin to build my own kit but I do not know the safe amount of propane I can inject. does anyone know what sort of flow rate I should be aiming for? has anyone got a proper kit already installed?
thanks in advance

If I could offer one word of advice here, it would be NO!
Seriously, if you are having to ask a basic question like that you are risking becoming your very own mushroom cloud.

My advice would be the same as if you were wanting an LPG conversion on a V8: Have a professional do it, or at least get a proper kit and have it checked by a pro after fitting it.

Maaarrghk said:

If I could offer one word of advice here, it would be NO!
Seriously, if you are having to ask a basic question like that you are risking becoming your very own mushroom cloud.

My advice would be the same as if you were wanting an LPG conversion on a V8: Have a professional do it, or at least get a proper kit and have it checked by a pro after fitting it.

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I could not find a decent V8 when I needed a car (hence TD5), but I personally would happily DIY LPG but a lot of people should not contemplate it including many so called professional installers.

Not knowing your background MJI, I cannot comment on your own abilities, but at least if a professional installation goes boom one would have some form of comeback, providing one survived the experience.

Despite having qualifications in vehicle design and 30 years messing about with cars and motorbikes, I really would not trust myself with the design and manufacture of anything that involved putting pressurised flammable gas into an engine. Nor would I buy anything that had a home made system installed, unless stripping the whole thing out was going to be my first job.

I'll just stick to watching Colin Furze on Yoochoob, ta very much.

who would be willing to risk the lives of family and friends over a LPG conversion DIY style. They make kits or diesels, just do a search. You fook up doing a home mad bodge job could end you in prison for a few years

What a load of ****e....

How would any of you know if its going to be a bodge job or not. Just because someone makes a kit and its installed by some so called profesional doesn't make it any better or safer than DIY.

The reason for asking questions is to gain the required knowledge to decide on a solution.....

Lucky not everybody follows you doom merchants advice or we'd still be driving horse and carts Everyone of you who is not a profesionally trained mechanic better not even change a bulb again....what if you do it wrong....short the wiring..cause fire...crash in to gas tanker.....BOOM

Get a life....if you cant help with the question them move along. Go join a health and saftey forum

I'm well happy with my home made lpg injection kit but I do get some smoke and puffs of flame out the back.....Is this normal?

blue beasty said:

I'm well happy with my home made lpg injection kit but I do get some smoke and puffs of flame out the back.....Is this normal?

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Nothing to do with your conversion, you turned your heater up too high

Thor1950 said:

who would be willing to risk the lives of family and friends over a LPG conversion DIY style. They make kits or diesels, just do a search. You fook up doing a home mad bodge job could end you in prison for a few years

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people risk so called professionals, following COP11 is not that difficult, done it before no problem.

If you know a car design well and are competent you WILL do a better job that a professional, I knew the coolant system well, I knew the hot spots, I knew where it was best to route stuff. But mains flex for tank under the car, not so good, nor cable tieing wires to EGR systems.

Got checked over, 1 minor on a cable routing he recommended an extra cable tie.

That DIY install ran well for 8 years.

Maaarrghk said:

Not knowing your background MJI, I cannot comment on your own abilities, but at least if a professional installation goes boom one would have some form of comeback, providing one survived the experience.

Despite having qualifications in vehicle design and 30 years messing about with cars and motorbikes, I really would not trust myself with the design and manufacture of anything that involved putting pressurised flammable gas into an engine. Nor would I buy anything that had a home made system installed, unless stripping the whole thing out was going to be my first job.

I'll just stick to watching Colin Furze on Yoochoob, ta very much.

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To be honest anything LPG and DIY is not out of the reach of a competent home mechanic, if you know a vehicle well you will find it quite easy. I know loads who have done this andall were to a higher quality than many pro jobs.

Pros sometimes fit nozzles drilling into manifolds without removing them, they will take small shortcuts to do it quicker when the owner would prefer newer.

And yes if I had bought a V8 instead of a TD5 it would have been LPGed, I looked at a L322 Range Rover in the same price bracket and rejected the car as soon as I saw the LPG install, one of the worst I had seen, seller had no idea if DIY or pro but it was tatty, for a start a mixer system in an injection engine!

DIY fitting a kit is definately the way I would go if you are confident and competent.

And just incase you inject too much gas youll need water injection or maybe more power with water/methanol (screenwash) injection.

Water-Methanol Injection: How Much is Too Much? - Diesel Power Magazine All Pages

MJI said:

people risk so called professionals, following COP11 is not that difficult, done it before no problem.

If you know a car design well and are competent you WILL do a better job that a professional, I knew the coolant system well, I knew the hot spots, I knew where it was best to route stuff. But mains flex for tank under the car, not so good, nor cable tieing wires to EGR systems.

Got checked over, 1 minor on a cable routing he recommended an extra cable tie.

That DIY install ran well for 8 years.

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I am not against installing a Kit that was manufactured by a company. What I am bitching about is trying to make a kit yourself, from a hardware store parts bins.

Thor1950 said:

I am not against installing a Kit that was manufactured by a company. What I am bitching about is trying to make a kit yourself, from a hardware store parts bins.

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Why?

a kit of parts is a kit of parts no matter who collected/made them.

Correct parts correctly fitted and tested then no problem, I have fiddled with LPG and propane without any problems

Thor1950 said:

I am not against installing a Kit that was manufactured by a company. What I am bitching about is trying to make a kit yourself, from a hardware store parts bins.

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Just not practical, where do you get the electronics from?

MJI said:

Just not practical, where do you get the electronics from?

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Kits usually have everything you need, assembly required You see this kit

Propane injection - www.portalrover.co.uk

landowner said:

Correct parts correctly fitted and tested then no problem, I have fiddled with LPG and propane without any problems

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not quite true pete.
what about the time you blew up half of warrington.

ok, interesting response. not really helped though, thanks for those of you in support hopefully I can guess the flow rate starting off low and avoiding pinking noises from the engine ( to much gas) and for those of you who are not supportive keep an eye on the news and if I get it wrong im sure you will see me (or whats left of me)

discoverysport said:

ok, interesting response. not really helped though, thanks for those of you in support hopefully I can guess the flow rate starting off low and avoiding pinking noises from the engine ( to much gas) and for those of you who are not supportive keep an eye on the news and if I get it wrong im sure you will see me (or whats left of me)

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have you bought a kit,or you doing it yourself??.make plenty of notes and take loads of pictures please.