Outer Limits 4x4 Board

Hey all

Tried to find some info in the bible, no luck!

Interested to see people opions on putting gas in a sierra! Mine is a Sierra with a vitara motor, carby.

Obvisouly cheaper cost but it would take up space in the back, but i have heard of problems with carbys and drying up engine seals?

In WA its pretty much free, so it is a legitimate option if it is a good option!

Let me know

Jedo

P.M. Hypo - he is fitting gas to his vitara engined buggy. Pretty sure he is using a gotpropane.com kit.

Layto....

That propane info is very interesting! Does anyone know if that is the same as gas from the service station? Or where you can buy those bottles?

Also how to you pm someone? Trying to locate that hypo person, have no idea how to do this, sorry new to forum!

just remeber where u do most of your driving and if u can get gas there?

most servos do it these days thou even bush.

U thinking full gas or gas/pet?
i think if u run a gas/pet the motor is not that efficient on gas.

Injection may be the best way to go for per/gas but should be able to go stright gas without.

i was thinking dual fuel... so your saying not the best on dual fuel? does injection mean i need to be EFI?

jedo wrote:i was thinking dual fuel... so your saying not the best on dual fuel? does injection mean i need to be EFI?

Yep. though you could the single point method and then its easier and cheaper to setup.

Carby method should be possible too but unsure how they work.

I am only saying from what i have read in general with dual fuel cars. they basically are not optimised for either fuel to keep the motor happy.

I am sure someone has more experience in this field.

cheers nicbeer!

.argh twice i have replied, twice the post failed.. grrrr.

in brief
8v swift on ebay atm claiming 10.5kms per Litre of LPG
last year a GTi with gas-carby impco system was getting 12-13kms

dry seals are most likely a leaded vehicle issue (seal saver kits can be bought)

gotpropane uses forklift tanks for their set up. i think thats a big no-no for a road going vehicle since the tanks cant be 'removable'

i say replace the stock tank with a van lpg tank (maybe relocate the muffler to get better space for a long one) fit an small auxilary petrol tank elsewhere (you can fit 3-4L in the cavity behind the filler above the wheel arch)

flat top 8v pistons from the states might be a go too.

Interesting points santos on the reserve tank idea! will give it some more thought but a likely option! Im still impressed with the gotpropane concept but its seems a little far fetched for me!

gotpropanes warning that they dont do kits for enclosed trunks is a worry

from what i look into it there are two ways of doing a lpg'carb' set up.

The american way
impco type set up, fixed converter and an ' air valve' that meters fuel with vacuum you got to find the right air valve to oen at the rate of a 1600cc, by the look of got propane kit this is what they run.

the european way
variable convertor and a venturi adaptor, basically you control the amount of gas flow with a screwdriver.

i like the european way, because it can be taken a step further and have a loop system by adding a oxygen sensor , a lpg ecu and a variable thingy in line. You tune the set up for full throttle , then let the ecu 'lean it off' for the variable load settings (like an electronic carb)

very simple set up with mininmal electrics