Anyone done a propane injection fit to P38 diesel?

kernowdragon · Jul 19, 2009

Several years ago I remember reading an article in a Land Rover mag about adding propane injection to diesel engines to improve power and mpg.

It appeared to be quite a common mod in the US and some research found quite a few sites with kits and gear, but they all refer to much bigger engines (4/5 litres).

Does anyone have any info on, or tried this on RR P38 or other 2.5 litre? Would it be legal in UK? Would engine need remapping or other mods? Would it strain an older engine too much? Any thoughts would be welcomed.

gavbriggs · Jul 19, 2009

doesnt matter about size of engine, just put less gas in! but its not as simple as it is with petrol, veg oil is a better alternative fuel!

Can Diesel engines be converted to run on LPG?

landowner · Jul 19, 2009

gavbriggs said:
doesnt matter about size of engine, just put less gas in! but its not as simple as it is with petrol, veg oil is a better alternative fuel!

Can Diesel engines be converted to run on LPG?

Some HGVs have been run on natural gas in the past but have a short range and need large gas tanks.

Spose you could use the petrol system but with a very lean mixture which would add an explosive mix into the cylinder instead of just plain air.
Diesels can have nitrous added so no reason why not gas.
my opinion and not gospel

everlatesparky · Jul 19, 2009

You could try a Hydrogen injection kit if you are feeling flush....plus you can let me know if it works!!

Waterboost Hydrogen Fuel Systems

Carl

Beast o Bodmin · Jul 19, 2009

yes,do it.LPG doisel no worries...
run it 50/50

Datatek · Jul 20, 2009

kernowdragon said:
Several years ago I remember reading an article in a Land Rover mag about adding propane injection to diesel engines to improve power and mpg.

It appeared to be quite a common mod in the US and some research found quite a few sites with kits and gear, but they all refer to much bigger engines (4/5 litres).

Does anyone have any info on, or tried this on RR P38 or other 2.5 litre? Would it be legal in UK? Would engine need remapping or other mods? Would it strain an older engine too much? Any thoughts would be welcomed.

Why would anyone want to use expensive explosive gas gas in a diesel?

For economy use your own bio-diesel,

for power get e re-map

No boot full of gas tanks, no restrictions on where you travel, no extra stress on the engine, no worries about knackering the injector pump

Beast o Bodmin · Jul 20, 2009

Datatek said:
Why would anyone want to use expensive explosive gas gas in a diesel? For economy use your own bio-diesel, for power get e re-map

No boot full of gas tanks, no restrictions on where you travel, no extra stress on the engine, no worries about knackering the injector pump

yes but the economy would be awesome and more torque too i bet...

gavbriggs · Jul 20, 2009

Datatek said:
Why would anyone want to use expensive explosive gas gas in a diesel? For economy use your own bio-diesel, for power get e re-map

No boot full of gas tanks, no restrictions on where you travel, no extra stress on the engine, no worries about knackering the injector pump

flammable gas stored in thick and very strong metal tanks as opposed to flammable liquid stored in plastic tanks??? :doh::doh::doh::doh::doh:

the car would still use diesel, and the pump would just pump fuel round in the same was as it normally does only less would be put in the cylinders!

Datatek · Jul 20, 2009

gavbriggs said:
flammable gas stored in thick and very strong metal tanks as opposed to flammable liquid stored in plastic tanks??? :doh::doh::doh::doh::doh:

Ever tried lighting diesel? It aint like petrol and the flash point is a million miles from gas Stick a match in it and it goes out and you still have fragile tubes and valves holding back your gas under pressure

kernowdragon · Jul 20, 2009

Datatek said:
Why would anyone want to use expensive explosive gas gas in a diesel? For economy use your own bio-diesel, for power get e re-map

No boot full of gas tanks, no restrictions on where you travel, no extra stress on the engine, no worries about knackering the injector pump

From the numerous posts, albeit mostly stateside, it makes a valuable on demand boost for towing/high load situations.
The gas expanding on injection provides a cooler inlet charge.
You only need a small tank (1/4 of main tank), therefore only need 27-30 litre tank.
Hugely reduced emissions, almost zero soot, and 100% combustion
Approx. 10-15% more MPG
Propane/LPG cheaper than diesel!

Why worries about injector pump?

Datatek · Jul 20, 2009

kernowdragon said:
From the numerous posts, albeit mostly stateside, it makes a valuable on demand boost for towing/high load situations.
The gas expanding on injection provides a cooler inlet charge.
You only need a small tank (1/4 of main tank), therefore only need 27-30 litre tank.
Hugely reduced emissions, almost zero soot, and 100% combustion
Approx. 10-15% more MPG
Propane/LPG cheaper than diesel!

Why worries about injector pump?

OK shows how little I know about what you are trying to do. You are supplementing the diesel with Propane as opposed to running on Propane?

Given the fragility of the engines, I still think it's a bad idea

kernowdragon · Jul 21, 2009

Datatek said:
OK shows how little I know about what you are trying to do. You are supplementing the diesel with Propane as opposed to running on Propane?

Given the fragility of the engines, I still think it's a bad idea

You've got the idea.. the propane acts as a catalyst (please no comments from anyone on the true definition of catalysts, I know technically they shouldn't be used up in the process), causing a faster, practically complete burn of the diesel, therefore releasing more power and less emissions. It can result in slighter higher exhaust gas temps, but many people claim to actually see a reduction.

It's reportly widely used in the states, but with bigger engines which are less likely to be turbo'd, but there are kits for turbos too. From the many posts on US sites it is safe and effective, as long as you don't overdo the volume of propane ending up with a grenade'd motor.

Most kits only allow the propane to be added when the engine is under load, i.e. there is enough vacuum in the inlet to ensure the gas is sucked straight into the cylinder, not waft around ending up backing out the air intake and going bang!

Beast o Bodmin · Jul 21, 2009

Do it.Im gunna

in a 200tdi mind but i bet the brown mans willy will take it tho...

lanmjdun · Jul 21, 2009

The good thing about putting a propane bottle in your car and hooking it up to the engine is that you can save money on your insurance each year because no insurance company would ever insure you; and if you do it without informing your insurance company then you're wasting even more money as you are paying for cover you don't have.

Beast o Bodmin · Jul 21, 2009

lanmjdun said:
The good thing about putting a propane bottle in your car and hooking it up to the engine is that you can save money on your insurance each year because no insurance company would ever insure you; and if you do it without informing your insurance company then you're wasting even more money as you are paying for cover you don't have.

oh just feck arf.you stupid toff

wammers · Jul 21, 2009

kernowdragon said:
Several years ago I remember reading an article in a Land Rover mag about adding propane injection to diesel engines to improve power and mpg.

It appeared to be quite a common mod in the US and some research found quite a few sites with kits and gear, but they all refer to much bigger engines (4/5 litres).

Does anyone have any info on, or tried this on RR P38 or other 2.5 litre? Would it be legal in UK? Would engine need remapping or other mods? Would it strain an older engine too much? Any thoughts would be welcomed.

Injecting gas into diesels has been experimented with and shows benifits. But it is not approved for use in this country and therefore is illegal to use.

Beast o Bodmin · Jul 21, 2009

wammers said:
Injecting gas into diesels has been experimented with and shows benifits. But it is not approved for use in this country and therefore is illegal to use.

you can feck arf inarl..

Anyone done a propane injection fit to P38 diesel?

kernowdragon

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