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  • Diesel with gas

    Hi all

    Can any one help with any info on gas injected diesels.
    I have heard of LPG on a 2hz engine and am interested if it is possible on
    A 3lt d4d prado altitude.

    Cheers
    Jazzkirra

  • #2
    Its possible, I know a member here that had it on his 120 D4D, he has since sold the Prado and no longer frequents the forum unfortunately.

    Whether its a good or worthwhile thing I have no idea, but actually doing it should be no problem, not much difference between the 120 and 150 from that respect.

    Cheers Andrew
    [COLOR="#FF0000"]So Long and Thanks for all the Fish![/COLOR]

    [url=http://www.4wdadventurers.com/showthread.php?3840-AJ-s-120-Prado]MY PRADO AND DIY CAMPER TRAILER[/url]

    [url=http://www.4wdadventurers.com/showthread.php?3975-AJ-s-79-series-Cruiser-Ute]MY HZJ79 Landcrusier[/url]


    [SIGPIC][/SIGPIC]

    Comment


    • #3
      Yes it has been done on a few 120 D4D's. Do a search for Skywalkerrun's posts on the subject. I've been for a run in his car and up a hill when the switch was turned on you could feel the extra pull. Note that his system injects no more than 15% into the engine on max boost pressure. No boost (idle etc), no LPG. This particular system is called the Eco Shot. There are also liquid injection systems for more gains, but at more install cost. The govt. was kicking in $2000 up until July 31st 2014, so prices could still be a little inflated at the moment, just my view.

      He also gets great range, which in my view is the biggest advantage. Say you're travelling from point A to B to Fuel Station to point C. With more range you cut out the trek to the fuel station.

      It has been said that the meat in between cylinder 3 and 4 on the 1KD-FTV is a little thin, and the extra bang you get when adding LPG to the cylinder could cause damage. It is also common belief that alloy heads and LPG is a no-no, which rules a D4D and LPG out. On the other hand Skywalkerrun is up to 150,000 so far with no issues.

      So the theory say's no, the practical (at 15% max, tested to 150K) say's yes. In the end it's your rig!

      Comment


      • #4
        Has anyone ever got more range when running LPG and sacrificing one of the tanks? If that were so then more people would be running LPG but they don't.
        Dave
        Views expressed are mine alone and are not intended to compromise the integrity of my employer nor offend those who may read such views.
        Bugger Bali, get out and see Australia before we sell it all to China.

        Comment


        • #5
          Originally posted by Bushbasher View Post
          Has anyone ever got more range when running LPG and sacrificing one of the tanks? If that were so then more people would be running LPG but they don't.
          I believe LPG injected diesel only requires a very small LPG tank. You would still maintain both fuel tanks. If the extra range is the aim, then a long range fuel tank should be considered also.

          Comment


          • #6
            Gday amts

            Originally posted by amts View Post
            I believe LPG injected diesel only requires a very small LPG tank.
            This is correct as i still carry 180 Ltr of diesel with a 36 Ltr LPG tank that can only carry 24Ltr of liquid gas as mine runs on LPG vapour and not Liquid gas injection.

            I get 2,050km out of 160 Ltr of diesel (When reserve light comes on) and a further 250 Km on reserve without the rig spluttering!

            That is a total of 2,300 Km without having to stop for Diesel but i do use approx 36 Ltr of LPG when on Constant freeway drive (I tend to drive 10km over speed limit on long trips!) as only use LPG when i exceed 9-10 PSI boost pressure.

            When @ idle or below 9-10 PSI i do not use LPG at all as it is activated by boost pressure only.

            I have to date now driven over 143,000Km with the LPG fitted & no troubles at all with now over 183,000 Km on the clock!

            Click link below!

            Diesel cruising range on full tank

            Cheers

            Comment


            • #7
              Holy shit that's amazing. What's it like towing?
              Cheers
              Blake

              04 Silver Diesel GXL with lots of stuff
              [SIGPIC][/SIGPIC]

              Comment


              • #8
                Gday BlakMoth

                Originally posted by BlakMoth View Post
                What's it like towing?
                I do not do much towing at all!... If anything i don't do towing at all but the torque increase is seat of pants when under load and the gas regulator is adjustable to suit the towing load!

                EG: if pulling a heavy trailer i would change the regulator to introduce the LPG at a higher PSI setting so to not gulp all the LPG but i once (About a year or so ago) i towed a 2.5 T tail lift trailer to Adelaide fully loaded with three adults each weighing between 90-110kg Each! Lol (i weigh 98Kg).

                I could still pull 160km (Overtaking semi's on open roads) Some of those semi's was pulling 130km!!!

                Cheers

                Comment


                • #9
                  Whats the conversion cost?
                  Any maintenance issues to be aware of?
                  Where does the LPG tank go?

                  Comment


                  • #10
                    Gday Beach

                    Originally posted by Beach View Post
                    Whats the conversion cost?
                    I wouldn't have a clue now as the government stopped the LPG installation rebate (Was $2,000 & i only contributed an extra $1,600) and i also don't know the now pricing for the conversion?

                    There is numerous different types of LPG conversions for Diesels (Some went bust for obvious reasons ) and some are very successfully working well! ... Mine is one of those that works very well!

                    I did allot of research combined with what i already know before choosing the one i chose.

                    I mainly did not want a system that violated Toyota's ECU settings & i did not want a system that had to drill to fit gas injectors etc.

                    The one i chose was used on kenworth & Mercedes Benz trucks successfully for 11yrs in the USA prior to being used successfully for 4-yrs in Australia when i bought the one i finally chose!

                    Originally posted by Beach View Post
                    Any maintenance issues to be aware of?
                    The only issue i had a couple of years ago was a failed LPG shut off valve (No gas supply) due to the fact that a heat shield was not fitted to protect the solenoid against heat but once i made a heat shield and ordered a new valve from eBay (Common part) i have had absolutely no trouble/Maintenance at all!... There is nothing to maintain!

                    Originally posted by Beach View Post
                    Where does the LPG tank go?
                    It fits on the drivers side just on the inside of the chassis rail opposite the main fuel tank & only sits 1/2" lower.

                    Cheers

                    Comment


                    • #11
                      Have you guys done any looking at the ignition time of this fuel with the pilot injection timing?

                      Given that the first shot of fuel can be as early as 65 degrees before TDC, it would be interesting to see when this would actually start the ignition of the fuel including the gas that has been administered with the air... I wouldn't have recommended it as i assume that this fuel source is burning quite early but then again, the 15% is not a terribly large amount and probably as more to do with creating higher cylinder temps and therefore burning more of the diesel throughout the 'more productive part of the stroke'. Interesting but.

                      Skywalker - have you ever pulled the injectors out? is there any bluing?

                      Comment


                      • #12
                        Originally posted by Baileys Diesel Group View Post
                        Skywalker - have you ever pulled the injectors out? is there any bluing?
                        Do you reckon 50 deg or less is enough to blue the injectors?

                        If the injectors was bluing would i be getting the fuel consumption and reliability that i am getting?

                        Cheers

                        Comment


                        • #13
                          Hi Skywalkerrun that's impressive fuel economy
                          when I looked into it I was told economy didn't change much, you just used gas instead of diesel so your savings was on the cheaper price of gas!
                          as I don't do that many klms in the car I opted no.
                          I know first fleet were trailing it before they went bust.

                          Comment


                          • #14
                            Gday pete8205

                            Originally posted by pete8205 View Post
                            when I looked into it I was told economy didn't change much, you just used gas instead of diesel so your savings was on the cheaper price of gas!
                            Clearly you was misinformed as the LPG is never switched off and you use it running around in general!

                            Yes my LPG last's allot longer when driving the burbs casually but i am still using LPG.

                            EG: when you set off from the traffic lights your boost will jump around and when you are cruising on the freeway you are using LPG (I say LPG & not gas as gas is the American term for petrol! Lol)

                            If you only do about 10 - 20 kilometers a day then a diesel would not be for you as the low K's would kill the engine anyway!

                            If you drove a diesel running on LPG (Providing it is a good system & set-up properly) then one without LPG you would most definitely feel the difference in general just driving around casually.

                            Cheers

                            Comment


                            • #15
                              G'day Skywalkerrun
                              Thanks for your information. I have a 150series altitude with 50k on the clock. Very impressed with your gas results and am keen to gas mine but might wait till my warranty is up. Do you think gas is a better system for more power compaired to a chip.
                              Would like to hear your opinion.
                              Cheers
                              Jazzkirra

                              Comment

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