G-8VXWWTRHPN MKV intake modification (Modshack prototype) - VWWatercooled Australia

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MKV intake modification (Modshack prototype)

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  • MKV intake modification (Modshack prototype)

    Thanks to Ian from Rennenhaus for working with me to get something to work in the TDI engine bay.

    What has resulted is that we are using a Modshack R32 intake as a filter prototype. There was a complete removal of the standard intake before the MAF - and now lives in the shed. The kit that comes with the R32 model filter required only limited adjustment (ie. bench grinding for the bracket and a branch to be tapped before the MAF for the vacuum line).

    The bracket is joined at the Earth connection point so the paint on the bracket requires removal.

    So down to the nitty gritty;

    Deciding the best location for the filter;





    After deciding that the best place for airflow was inline with the grille, the following is the result;



    Looking through the original air intake area;



    Looks very discreet;





    Location of plumbing;



    Be aware - tight fit - potential rubbing;



    Location of the mounting bracket;





    The 1000 kilometer review:

    Noise: There is a lower tone and some intake drone - nothing like the slurp of a petrol - but notable.

    There is slightly more noticeable blow off sound from the waste-gate.

    On the highway and around town, not a problem with the noise.

    Economy:

    At this stage I think there is limited around town economy increase. On the highway, I think that it is saving around .4 - .7 liters per 100 km.

    Performance:

    Most noticeable is that how much smoother the car is at lower revs. The main problem I had before was the VERY large delay in the lower rev range. This area is smoother and more pleasant than the OEM system.

    No great variance on the soot from the rear.

    Overall:

    I think that as part of the intake, this is a good addition. It will assist with induction of cooler air and more of it undoubtedly.

    In a perfect world I would next approach the exhaust on this car, however I am not really willing to invest that amount of money yet.

    I would give this solution a thumb up - and as there are not many others out there at this stage, serious consideration if I was contemplating other mods like Chip or Exhaust.
    Last edited by mikinoz; 22-03-2008, 06:03 PM. Reason: links

  • #2
    cooool any reason you picked that particular one?
    2x Caddy, 1x Ducato

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    • #3
      Cool again, I was hoping you posted it in the diesel section.
      2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

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      • #4
        The more i look at this the more it makes a lot of sense.

        Tell us about the cost and also the filter. Is it paper, expected life, ease of replacement, places to get replacements and also cost.

        Cheers,
        Jamie
        Cheers,
        Jamie

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        • #5
          Yeah,
          and also, does it have the same filtering performance as OEM filter?
          So, it doesn't shorten the engine's life.
          Last edited by Transporter; 24-03-2008, 10:20 AM. Reason: edit
          Performance Tunes from $850
          Wrecking RS OCTAVIA 2 Link

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          • #6
            This is still going strong.

            It has been great, and have no complaints.

            Service is due so I am going to take it off, and then head to the next dynno day stock - do a run - change over to modshack - and do another run for comparisons sake.

            It is a K&N filter so I am of the opinion that it should be safe for the engine and the renewal process is pretty straight forward.

            Comment


            • #7
              Mate, having a few weeks of inlet research under my belt now, you certainly made a top choice. Phenominal product.

              Did you notice on the Mod Shack site they mention the grid in front of the MAF is an 18% inlet restriction, and the greatest one to boot? It's there to smooth the airflow after the 90 degree stock lid top, and they mention it can be removed on fitment of their filter like you have done.

              Certainly be in my plan in your shoes you lucky b@stard!
              Last edited by Greg Roles; 05-04-2008, 07:34 PM.
              2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

              Comment


              • #8
                Can you link the reference to 18% reduction? I am unable to find it.

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                • #9
                  No worries, the site does go on and on a bit

                  Under "Stage 1" link in the upper right of the homepage.

                  Half way down the page:




                  Thoughts on:

                  Panel filter Upgrade: The issue is NOT the Filter medium, but the airbox design itself. Air comes in through a small snorkle, changes direction 90 degrees, flows through the filter, and changes direction another 90 degrees before it heads off into the MAF. It's no wonder the MAF housing needs restrictive vanes and screens (18%) to smooth the airflow.




                  Then under the pricing:



                  TTDA general info:


                  On flow: In the stock airbox, air changes direction twice (90 degrees each time) to get to the MAF. Using the inverted cone filter, air enters the MAF smoothly. So smoothly in fact, that you can remove the plastic vanes and screens from the MAF housing which is the biggest restriction in the intake
                  system.


                  2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

                  Comment


                  • #10
                    Looks great and i'm not at all being negative in the slightest, but isnt this basically a cone shaped pod filter (k&/n or similar) in a round tubular insulated housing.?

                    I love the fitment of it and the way it sits with the inlet aimed directly forwards, frankly you couldnt ask for a better setup .
                    Looks like I'll be building myself one to get rid of those two 90deg bends.

                    With such a simple design theres no reason why a home built unit wouldnt give the same results as this $250+ unit.

                    Im building myself one.

                    Comment


                    • #11
                      You got it mate.

                      The filter is nothing major, easily obtained.

                      The beautiful phenolic tube and insulation he uses isn't so easy. I've tried to play with phenolic plastic before...good luck finding sheets let alone tubes of that size! It's one of the best insulators available.

                      THOSE things are the major things for me Log-man.
                      2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |

                      Comment


                      • #12
                        Originally posted by mikinoz View Post
                        It is a K&N filter so I am of the opinion that it should be safe for the engine.
                        Don't get me wrong, this looks like a great improvement over standard but I recall reading on one of the sites a while back that K&N Filters are known as "MAF Killers" due to the oil from the filter medium getting into/onto the MAF as screwing it.

                        Any views on K&N's as I intended to use one until I read about the "MAF Killer" bit. (can't find the link now of course)
                        Granite Passat sedan TDI (125kw), DSG, beige leather
                        Candy White Polo 6R, 66TDI, DSG, no options

                        Comment


                        • #13
                          Originally posted by vanDub View Post
                          Don't get me wrong, this looks like a great improvement over standard but I recall reading on one of the sites a while back that K&N Filters are known as "MAF Killers" due to the oil from the filter medium getting into/onto the MAF as screwing it.

                          Any views on K&N's as I intended to use one until I read about the "MAF Killer" bit. (can't find the link now of course)
                          This is also a concern of mine too which i was thinking about last night.
                          Its also been proven that the standard air filter does a better job of filtering than what the K&N filters do.
                          So therefore they are not protecting your engine as well as the standard.

                          Comment


                          • #14
                            If there is proof that the standard filter is better at protecting the engine, and you are not concerned about the power loss from the standard airbox restrictions stick with it I say.

                            I have had no problems with K&N in the past (with various Subaru / VW / Holden) and feel that they are adequate.

                            Not living in a sandy or rural area also leads me to be less concerned.

                            As we are not planning on holding on to the car for longer than 3 or so years, and the fact we have only done 16K in 12 months - I am not sure that there is a lot of difference that will be made to engine life in my ownership.

                            Comment


                            • #15
                              This BMW link gives some views on K&N Filters



                              Seems K&N Filters, esp pod filters are worse than standard unless insulated from engine compartment hot air (which this mod seeems to do). At best they appear to be borderline for performance gain and allow more dust through. Better airflow new out of the box but loading up very quickly for WORSE airflow. Not good with K&N recommending cleaning only every 50K miles.
                              Granite Passat sedan TDI (125kw), DSG, beige leather
                              Candy White Polo 6R, 66TDI, DSG, no options

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