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12mm or 25mm spacer for vz

Discussion in 'Mace Engineering' started by TAILS83, Oct 29, 2013.

  1. Mattde

    Mattde Member

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    Thanks Kuz, yeh i had assumed it was something along those lines.
    Really would have lover to get the 25mm but having a strut brace I'm nervous that i hardly even have the clearance for the 12mm!
    But ill whack it in on sunday and let you know how it goes!
     
  2. commodore665

    commodore665 expat Saffa

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    With the 25mm ones I have had to leave off the engine covers off , which is a very minor irritant , you may find the gaskets a bugger to remove as well , at least mine were .


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  3. commodore665

    commodore665 expat Saffa

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    Here are my results of the temperatures taken before and after the fitting , sorry for the angle of the photos
    1- the car before before being driven at 7-30 am
    2- after a 30 minute drive on open country roads
    3 - after a 90 minute city and open road drive , with stop and start driving
    4 - taken after the fitting , on a slightly cooler morning , before car being used
    5 -after a 30 minute drive on country roads
    6 - this is the one that surprised me the most , after the same 90 minute drive city and open road with stop and start use

    Have not as yet noticed a difference in fuel consumption but will keep an eye on that .

    I'm sure some people will have different opinions on these findings , but I am an completely ,unbiased person , telling you of what I found out , people can take from it what they wish , as for gains , the car certainly has more poke down low , seems a lot more willing to rev put as well , and I can certainly feel the difference in temperatures without the use of a infrared thermometer, it will be interesting to see what happens in the coming autumn and winter months when temperatures will be cooler .
    cheers Mace for a very good product .
    Ian
     

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    Last edited: Feb 17, 2014
  4. Mattde

    Mattde Member

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    Top Write up!
    Finally got my 12mm installed and it fits perfect with 2-3mm clearance from the strut brace (Thank God!)
    Really happy with the results too. Much more responsive low down.
    Took it for a drive in the wet last night. Whilst sitting at 40kmph decided to plant my foot and actually managed to get the wheels spinning when the trans downshifted. oopps, my poor tyres. Couldn't be more happy though. great product!
     
  5. commodore665

    commodore665 expat Saffa

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    They are good , the 25 mm ones I've got in my VZ make all the difference , on a personal note I reckon the Alloytecs really do benefit from this modification . I had the 12 mm ones on my old VX and thought they were great as well .


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  6. MACE

    MACE Well-Known Member

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    Glad to hear that you're happy with the upgrade guys :)
     
  7. commodore665

    commodore665 expat Saffa

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    Interestingly , whether it's just my imagination , but my car seems to be getting more torquey over time , probably just the computer adjusting to the intake temps dropping .


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  8. Group C

    Group C Member

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    First long trip away after fitting 12mm to my VZ v6,have done the trip Goldcoast to Syd many times in last couple yrs before mod was averaging 7.2/7.4 ltr-100km,after mod found fuel usage higher up to 8.2/8.8 ltr-100km :(,did notice would hold gear in hills better so defiantly increase in torque,but disappointed in fuel usage comparison
     
  9. MACE

    MACE Well-Known Member

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    Thanks for your constructive feedback Group C. For the record, have your primary O2 sensors been replaced? The reason for this is that they can be problematic (no longer accurate), while not registering a fault code.

    If you have any questions please don't hesitate to ask

    Kindest Regards,
    Steve
     
  10. Silver6

    Silver6 New Member

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    I cant wait to put mine on the VE this weekend. Got a question though. Seeing as I had to put the manifold back on with the RTV is there a way I can get it off easier or am I just going to have to rip at it until it does?
     
  11. Silver6

    Silver6 New Member

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    Mine were a PITA. They broke off everywhere and I spend ages tediously scraping it off the block and manifold with a razor blade. Got to do it all again hopefully this weekend :)
     
  12. commodore665

    commodore665 expat Saffa

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    True that , scraping the bastards off took me forever as well


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  13. Silver6

    Silver6 New Member

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    Yeah took a good hour or so and 3 blades to get the job done. Hopefully the RTV will be easier to get off. I think the hardest bit will be getting the manifold itself off :/
     
  14. commodore665

    commodore665 expat Saffa

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    from what I am led to believe , it shouldn't be a problem to take off the manifold again , just a gentle tug should do it .
     
  15. Silver6

    Silver6 New Member

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    Haha. Not going to type what I was thinking, lol.
    From what I hear not too difficult but sometimes you need to get rough with it, lol.


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  16. commodore665

    commodore665 expat Saffa

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    Maybe I should have rephrased that .


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  17. Silver6

    Silver6 New Member

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    :rofl2:

    Haha, not your fault I just have a dirty mind haha.
     
  18. adi91

    adi91 Member

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    Hey Steve,

    Besides that how would we know, which O2 sensor if faulty? :\ and around how much do they cost...any idea?

    Am planning to buy a MACE-CAI along with this 12mm spacer


    cheers mate
     
  19. MACE

    MACE Well-Known Member

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    "Besides that how would we know, which O2 sensor if faulty? :\ and around how much do they cost...any idea?
    You can check the condition of an O2 sensor by data logging it on a dyno or on the street. A new O2 sensor will be around the $100 mark.

    Am planning to buy a MACE-CAI along with this 12mm spacer"
    No problems.

    If you have any other questions, please do not hesitate to ask.

    Kind Regards,
    Damian
     

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