Thread: Largest LPG tanks - D2

We used to fit 600lb bottles along the chassis of trucks. You could always tow a trailer with one or two of these.

Yep you pretty much on the money...

2x tanks that replace the original 90 litre fuel tank and give a useable 75-80 litres of LPG and a smaller 50 litre petrol tank is installed in the RHS wheel arch.

LPG varies widely depending on the pump, I've put as much as 88 litres and as little as 70 litres, some shut off way to early others will keep going and going.

With this setup it should provide 350KMs on LPG and 250kms on Petrol

Long Range, have a 51 litre sill tank (petrol) but cant be used if you have ACE and SLS.

PICS of my LPG setup here

I have learnt the hard way with modern fuel injected engines that run hot for effeciency and emissions - its too hot for the converter to convert gas at a healthy temp...it cracks again to form more of the metholdecapthlen (not correct spellling - black goo) and it gums up the idle jet and diaphragms...and ends up causing backfires and poor running on LPG when cold. I have just installed a simple brass inline thermostat that reduces the temp in the converter down to 130-140f instead of 190+ normally...and all it does is slow the water flow through the converter/heater circuit to allow the cold gas to cool the converter water more which in turn cools the converter down...dead simple and bloody great!

Cheers

Originally Posted by ozscott

I have learnt the hard way with modern fuel injected engines that run hot for effeciency and emissions - its too hot for the converter to convert gas at a healthy temp...it cracks again to form more of the metholdecapthlen (not correct spellling - black goo) and it gums up the idle jet and diaphragms...and ends up causing backfires and poor running on LPG when cold. I have just installed a simple brass inline thermostat that reduces the temp in the converter down to 130-140f instead of 190+ normally...and all it does is slow the water flow through the converter/heater circuit to allow the cold gas to cool the converter water more which in turn cools the converter down...dead simple and bloody great!

Cheers

On mine the water line used is taken from where the throttle body heater hoses connect, which has an extremely slow flow rate.

Is yours a a converter-mixer system? Or a a vapour sequential injection system?

Thats a good way of doing it - although you would have to do a brass conversion up to the larger diameter hose for the converter...mine is mixer but a lambda controlled (o2) main jet and idle jet and works very well when it isnt full of black crap (20.5l per 100k in and out to Brisbane from the burbs - manual)

Cheers

What is the power loss by using gas?

I'm contemplating stroking to 4.6 to run on gas.

Any comments?

i don't think that there is any power loss with an injected system.

I run the same system as grumpy and i get 400-420km on the hwy.