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TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods

Discussion in 'Performance and Tuning' started by 12TRDTacoma, Nov 8, 2017.

  1. Oct 21, 2019 at 3:23 PM
    TRON

    TRON Well-Known Member

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    Last edited: Oct 21, 2019
  2. Oct 21, 2019 at 3:28 PM
    420taco

    420taco Well-Known Member

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    Turn the gauge on and pull the tubing off the boost port. What does it read?
     
    Torspd likes this.
  3. Oct 21, 2019 at 4:58 PM
    findingthingsout

    findingthingsout Well-Known Member

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    Boost, armor, lights, big tires, no savings.
  4. Oct 21, 2019 at 5:11 PM
    White lightning boosted

    White lightning boosted Well-Known Member

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    on the topic of boost gauges. could tube density alter readings? my meth gauge has a very small almost rigid line. my aem gauge is larger, softer silicone. there is a tee fitting dividing the two. my aem always reads about 1lb lower. according to previous feedback im more confident in the meth gauge for accuracy. maybe more light can be shead on this topic when @Roostfactor gets his meth system up and going.
     
    Roostfactor likes this.
  5. Oct 21, 2019 at 6:40 PM
    Norton

    Norton Senior Member

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    Interesting, in that both the Tacoma (with Speedhut gauges) and my Shelby (with Autometer gauges) show similar (-20 - -15 in Hg) vacuum readings. Both gauges also show the boost expected, based on the way each vehicle is configured. The Shelby was smoke tested for leaks and the dyno pulls I've done confirm its boost readings are accurate. (Haven't tested or dynoed the Tacoma.) AFR readings in both vehicles also appear good.

    Not arguing with either of you, BTW. Just reporting my observations.
     
  6. Oct 21, 2019 at 7:24 PM
    findingthingsout

    findingthingsout Well-Known Member

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  7. Oct 21, 2019 at 7:38 PM
    Torspd

    Torspd Tor-nication

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    Yeah! What he said^^^ :anonymous:
     
  8. Oct 21, 2019 at 8:09 PM
    TRON

    TRON Well-Known Member

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    It’s all good brother! I’m curious if this link with the pressure to elevation is accurate to engine idle :thumbsup:
     
    Norton[QUOTED] likes this.
  9. Oct 22, 2019 at 6:38 AM
    Roostfactor

    Roostfactor Well-Known Member

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    I have noticed vacuum at idle change a fair amount depending on various factors.
    There is not a single correct value.

    Some things that could/will cause it to vary include:

    Idle rpm
    Idle engine load.....a/c, rad fan engagement, etc.
    Atmospheric pressure as discussed
    If tuning yourself, early (low load) VVTI engagement
    Ignition timing, etc.

    They all play a part and now that we have more tuning options, the deviance between two vehicles can be greater.

    Roost
     
  10. Oct 22, 2019 at 6:46 AM
    Torspd

    Torspd Tor-nication

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    Adding cam gears will also move the vacuum.
     
    Norton, Anderson, Roostfactor and 2 others like this.
  11. Oct 22, 2019 at 7:09 AM
    White lightning boosted

    White lightning boosted Well-Known Member

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    or cams?
     
  12. Oct 22, 2019 at 7:50 AM
    mightytacoman

    mightytacoman Mighty-known Member

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    Or stroke and/or bore? :D
    Yes cams too.
     
  13. Oct 22, 2019 at 9:28 AM
    Torspd

    Torspd Tor-nication

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    Waiting waiting on my compadres to get their beefed internals in!
     
    henryp and mightytacoman like this.
  14. Oct 22, 2019 at 10:40 AM
    TodayWasTHeDaY

    TodayWasTHeDaY Hoser

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    Question for the double bearing pulley on the Roush tensioner crowd:

    Does the stock tensioner pulley bolt work with the dbl bearing or is a longer one needed? Would prefer to know before I pull everything apart and strand myself on an island.
     
  15. Oct 22, 2019 at 11:13 AM
    mightytacoman

    mightytacoman Mighty-known Member

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    You'll need a longer bolt
     
    garciav and 12TRDTacoma[OP] like this.
  16. Oct 22, 2019 at 11:19 AM
    TodayWasTHeDaY

    TodayWasTHeDaY Hoser

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    Thanks for the heads up!
     
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  17. Oct 22, 2019 at 12:01 PM
    mightytacoman

    mightytacoman Mighty-known Member

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    Just heard from BC. Shipping out Thursday he said.
     
  18. Oct 22, 2019 at 12:18 PM
    Torspd

    Torspd Tor-nication

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  19. Oct 22, 2019 at 1:21 PM
    Lucario Runner

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    Like 4 all of us?
     
  20. Oct 22, 2019 at 1:23 PM
    mightytacoman

    mightytacoman Mighty-known Member

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    He didn't specify. He usually acts like he's in a hurry/busy over that way so I didn't get around to asking.
     

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