Toymods Car Club Inc: General Car Talk => !@#$%ING FUEL PRICES

Toymods Car Club
www.toymods.org.au

F.A.Q.

Home

Members

Toymods » General Car Talk » !@#$%ING FUEL PRICES Show: Today's Posts :: Show Polls Email to friend

Author

Topic

GUN METAL 87 SC
Forums Junkie

Location:
SYDNEY
Registered:
November 2004

Re: !@#$%ING FUEL PRICES

Thu, 01 September 2005 14:23

CoronaC wrote on Thu, 01 September 2005 21:17

GUN METAL 87 SC wrote on Thu, 01 September 2005 19:28

Yep, there are some negatives with gas.

It depends if you are going for straight gas or dual fuel.

some of the late model duel fuel set ups can work very well on EFI cars but has to be ones designed for it so that the fuel mapping timing etc are adjusted for the different fuels. To my knowlege even most of the current crop dont do this and subsequently you get a compromise which results in the worst of both worlds. The car needs to be specifically tuned for each fuel....FULL STOP !

Do "Gas Only" engines use more advanced or reduced timing over petrol engines, what if it was tuned more towards one then the other?, ie. tuned more towards LPG and have petrol run through it on start up and every so often to prevent things from drying out and creating problems.

GUN METAL 87 SC wrote on Thu, 01 September 2005 19:28

As previously mentioned some gaskets etc are a prob on some engines, you would have to check with the installer. from what i understand if its dual fuel you can overcome some of the probs by starting the car on petrol then after 10-15 mins go to the gas, but as i said erlier you may end up in the worst of both world. From what i understand there is another way to overcome the drying effect in gas only conversions where there is a fluid injected at a certain rate to lubricate / keep wetted certain components.

Is there actually something that can inject petrol at regular intervals to keep everything lubricated while its running on a duel fuel setup?
If there is that would be pretty useful for the times that you may forget to change back to petrol, also wouldnt this screw with the timing having two different fuels mixing together? I would think that a setup like that may not be as economical having both fuel pumped in at once, unless the setup changed automatically between the fuels at regular intervals and used petrol for the start-up/warm-up time.

GUN METAL 87 SC - What type of economy do you get from a 140ltr tank? cost around $60 to fill up a tank that size, am i right?

cheers
chris

As for the timing and tuning differences i am really not sure...all i know is they are different, also the burn rates are different and prefer different plugs and cam selections can also be different...like i said before dual fuel is a compromise.

in the gas only V8 we had...sold it about 12 months ago Mad

There was a fluid that was injected, not a fuel but a lubricant.

Sort of like the old oil injected 2 strokes.

The difference was that it hardly used any at all..like a litre lasted over 3 years. Well actually i could be wrong there i actually got a workshop to do most of the routine servicing on this car, so maybe he kept it topped up....really dont know.

working on these bedfords was a bit of a nightmare it weighed over 2 tonnes and i did not have a big enough jack to get under it, also 1/2 the engine is under the hood and the other 1/2 is in between the driver and passenger. and as these things usually only had only a 4 or 6cylinder, with a big V8in it everything was TIGHT...the mechanic would cringe every time i drove it in....which was pretty regularly....not Toyota reliability thats for SURE.

[Report message to a moderator]

[Message index]

-=] Back to Top [=-

Current Time: Wed Apr 9 03:22:26 UTC 2025

Total time taken to generate the page: 0.01156210899353 seconds

.:: Contact :: Home ::.