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  • Dyno Tunning Std D4D

    Had a quick search and couldnt find any info so apologies if this has been covered before.

    I was wondering if anyone has had a bog standard 150 Deisel on the Dyno and are there any gains to be tweeked out of the motor without aftermarket chips and exhausts..

    Would some feedback.


    Cheers
    Dazz
    Last edited by D4Dazz; 07-08-2014, 09:11 PM.

  • #2
    Hmmm

    Comment


    • #3
      Surprised none of the 150 boys put up a post on this but the short answer is no. Most here recommend against chipping. There's nothing to play with outside the ECU. Toyota, like most modern makers, tune for the best performance under operating conditions anyway. Keep your air filter clean and frequently blow the dust off the MAF sensor if you spend a lot of time in the dirt. Some have fitted a wind booster for improved throttle response. It's not a race engine where you can shove in better sparkplugs, a hotter coli pack, bigger induction pipes, etc. We like reliability so regular oil changes and a third fuel filter seem to be popular for longevity.
      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


      • #4
        You can do a proper dunno tune with chip and increase the boost, and all the other parameters that go with it. You'll get big gains but the standard motor doesn't need it so it's not worth the risk of destroying the motor prematurely.
        [CENTER][B]-=2014 GXL D4D Auto Graphite, Firestone Airbags, ARB/Optima D34 Dual Battery, ARB UVP, TJM Airtech Snorkel[/B][B]=-[/B]
        [/CENTER]

        Comment


        • #5
          Exhaust mods would be the easiest and safest I would have thought.....

          For me, just simply adding the Windbooster Throttle control is all that I needed to satisfy me with the better engine response
          [I]cheers..... Rob (macca)[/I]
          [I][B][COLOR=DarkRed]Car-4: 1996 Defender Tdi [/COLOR][/B][/I]
          [I][B][COLOR=Blue]Car-3: 1996 Discovery Tdi Auto[/COLOR][/B][/I]
          [B][I][COLOR=Green]Car-2: 1993 Suzuki Vitara 4Dr (modified for Playing) [/COLOR][COLOR=#ff0000]Now Retired[/COLOR][COLOR=Green] [/COLOR][/I][/B]
          [B][I][COLOR=DarkOrchid]Car-1: 2010 Toyota Prado 150's (Missus Car/current touring vehicle)[/COLOR][/I][/B]

          Comment


          • #6
            A proper dyno tune opens the tune which is then finessed over a number of runs. The idea is that the factory tune is a generic one size fits all tune without addressing the fact that all engines are to some degree different. A piggy back chip either fools the ECU into doing something in order to increase fuelling or it increases rail pressure to inject more fuel or increases injection duration. Not as sophisticated as a proper tune. I am dead against piggy back chips regardless of whether it is applied to a D4D, 1kz or an engine with spark plugs. Very happy to do a proper dyno tune however because both kW and L/100 can be released. Anyone offering a dyno tune with a piggy back chip are only giving you the output each or some of the settings give and maybe checking some parameters. It is not a proper tune.

            I have done nothing to any of my diesels over many years. Can't say the same for my V8s though...

            If I was to do anything it would be a larger exhaust, dump pipe and EGT but I would still leave the tune alone.
            My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automatic

            Comment


            • #7
              The original post wanted to know if there were any gains to be had without exhaust or chip mods.
              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


              • #8
                Thanks heaps guys.

                Comment


                • #9
                  I spoke to someone at a Toyota dealership, and told him that some people put on a device that justs changes the feel of the throttle. He laughed ... and was totally bemused by those that bought such devices...

                  He said that he is not allowed to tell me ... but a dyno tune on the D4D makes a huge difference.

                  I said: but, don't you need a chip? And won't Toyota know everything?

                  He said you leave the stock ECU, and flash the ECU, then set it up on the Dyno. He said that the reset allows higher boost to be dialed in, which improves response a huge amount, performance and also saves on fuel consumption for a similar level of performance. He said Toyota cannot detect such changes. He reckons its a no brainer ...

                  But he warned about doing such things to the 4.5 litre V8 turbo diesel. Due to drivetrain etc issues, one has to be more careful with the consequences of greater power with them.

                  Comment


                  • #10
                    Originally posted by Symo View Post
                    You can do a proper dunno tune with chip and increase the boost, and all the other parameters that go with it. You'll get big gains but the standard motor doesn't need it so it's not worth the risk of destroying the motor prematurely.
                    But ... the same motor seems to be capable of more performance.

                    For instance, check the figures at the end of this test:
                    https://www.youtube.com/watch?v=qxaUf2CtlXM

                    Its a test between the Nissan X-Trail, and the Toyota Prado Sport, with its D4D turbo diesel engine.

                    Toyota Specs:
                    Capacity: 2982 cm3
                    Max Power: 150Kw
                    Max Torque: 510 Nm @ 1600 RPM

                    Perhaps the Russians test torque differently ... also power ... but even if they do:
                    150 kw/ 127 = +18%
                    510 Nm / 410 = + 24%

                    Seems to me that Russia (who do assemble Prados and are the largest buyers of them) expect reliability. I recall the old tiny Niva 4WD was very crude, but also, very tough.

                    Perhaps the motor is capable of more performance while retaining reliability?

                    Comment


                    • #11
                      For my clients & friends I'm recommending to avoid chips.
                      Especially on CRD's.
                      Especially if they increase fuel rail pressure.
                      Alternatively BDG have 5 or 10 percenters available at times & if you insist that could be a way to go.
                      I have been in a Hilux with 10 percenters & it goes hard! Reports better fuel consumption too.
                      I always reccomend to go standard spec.

                      I don't know if it has been on a dyno or the results

                      CRD = common rail diesel
                      BDG = baileys diesel group

                      Cheers,

                      ####.

                      Comment


                      • #12
                        Who is best to do it then?

                        As I said, my Toyota dealer employee, told me that a dyno tune was what he recommends.

                        He said the performance gain is very significant, and also, it is not detectable.

                        The process is basically to flash the ECU, and then tune.

                        It seems to me that if one put in a free flowing catalytic converter ($300 for them I think), or added a 3" exhaust ($1,000 for a aluminized steel I think or $1,300 for stainless both 3" all the way) that such changes would not be a benefit without a dyno tune anyway.

                        So who is the best in Melbourne to do this?

                        Comment


                        • #13
                          Are our ECU's tuneable with ecutek? I know the ecutek softwear is what they use to tune the 86 using the factory computer. As far as it being undetectable, that is total garbage, if anyone knows what they are looking at and actually looks, they would know its not the factory tune (ie, complete engine failure under warranty and TMCA get involved, or a really switched on tech looks if searching for a fault)
                          [LEFT]Silver 150 Facelift
                          TJM Bullbar, Lightforce Genisis Spots, Dual Battery System with bits from everyone, Powerful 4x4 slider/steps, Kaymar rear bar, "Genuine" Roof Racks, MSA Seatcovers, Dashmat, Tint, LED Interior Globes, Bridgestone D697s [/LEFT]

                          Comment


                          • #14
                            Originally posted by Symo View Post
                            . You'll get big gains but the standard motor doesn't need it.
                            What are you basing this on?

                            It's one of the lowest output 3 litre diesels on the market, why do other manufacturers feel the need to supply more if they don't need more than the D4D has?

                            You should call them, you're insight may save them a few dollars.

                            Comment


                            • #15
                              Originally posted by BNEGXL View Post
                              What are you basing this on?

                              It's one of the lowest output 3 litre diesels on the market, why do other manufacturers feel the need to supply more if they don't need more than the D4D has?
                              Marketing reasons.

                              Its simple to have the torque further up the power curve, and that way you also get more power. But if the torque is low, and its real not something you believe from the printed paper, then its more useful and also there is less wear on the engine.

                              The Toyota D4D motor varies in spec around the world too. Sometimes it has lower performance, and in some places higher. a

                              A bit like perhaps Toyota with their towing characteristics. For instance the Rav 4 diesel has a much lower towing limit than it does in New Zealand. Its hot in Northern New Zealand too, and its steep and mountainous all over their islands. But they still have much higher capacity towing on their RAV diesel. Probably due to Toyota Australia's marketing department, who likely reckon people should buy a Prado rather than a RAV for towing. And with big caravans, they feel the same about getting an LC200 instead of a Prado.

                              Comment

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