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New exhaust. Better mpg?

Discussion in '3rd Gen. Tacomas (2016+)' started by Kamille.bidan, Mar 9, 2019.

  1. Mar 10, 2019 at 11:20 PM
    #21
    shakerhood

    shakerhood Well-Known Member

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    20190221_163319.jpg
    This was one from a few days ago, not bad for winter fuel and a cold day.
     
  2. Mar 11, 2019 at 6:53 AM
    #22
    Reedld

    Reedld Well-Known Member

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    If the drone is too much and you want to keep flowmaster...look into installing a helmholz resonator.
     
  3. Mar 11, 2019 at 6:56 AM
    #23
    HacksawMark

    HacksawMark Well-Known Member

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    Anyone can achieve MPGs such as those shown in this thread over short distances. The real MPGs will be derived by taking total miles driven/gallons to fill the tank and do that over time. Anything else is just pure misinformation.
     
    bmorgan1022, jmneill and shakerhood like this.
  4. Mar 11, 2019 at 9:46 AM
    #24
    Roddy13

    Roddy13 Well-Known Member

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    With nothing to much to do with the "cat back" section. Crawl under your truck and look at the crossover pipe that the factory crushes almost flat for clearance purposes, then look up stream towards the engine the whole Y-pipe is bungled with an extra set of catalytic converters.

    Look at URD's Y-pipe .... a cat back might help a bit if it is a larger diameter with a free flow muffler, but the front half of the exhaust on these trucks is the choke point
     
  5. Mar 11, 2019 at 8:29 PM
    #25
    naked farmer

    naked farmer Well-Known Member

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    Its plausible. It’s odd that some stock 3g gets 16 mpg and others 20. Maybe something happened when the pipes opened up. We all know how individualistic these trucks are.
     
  6. Mar 11, 2019 at 9:49 PM
    #26
    Kamille.bidan

    Kamille.bidan [OP] Well-Known Member

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    Yeah, I saw that nasty crush pipe when the shop put the truck on the lift. Is it for ground clearance? I also saw the 4 Cats.

    I just filled up and my previous tank had a 21MPG tank average. I have never had a tank average that high.


    I tracked my MPGs for 3 months, and Presented the results in this thread. https://www.tacomaworld.com/threads...for-mt-v6-trd-or-bs-will-be-destroyed.522581/

    Everyone nit-picked every little detail of my results. I am not going to track all my tanks again just so people can nit-pick and say everything I did was meaningless. [​IMG]

    [​IMG]
     
  7. Mar 11, 2019 at 9:51 PM
    #27
    Bishop84

    Bishop84 Well-Known Member

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    No factory exhaust is restrictive to the point of fuel economy being affected.

    The pros to free flowing only get noticeable with performance and full throttle applications.
     
  8. Mar 11, 2019 at 9:55 PM
    #28
    shr133

    shr133 Well-Known Member

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    Sweet, yes when you make and air pump more efficient it runs better....

    The advantage of the 3.5 is there are ways to get better mpg...
    The 4.0 just eats gas no matter what you do....
     
    stealthmode likes this.
  9. Mar 11, 2019 at 9:55 PM
    #29
    Kamille.bidan

    Kamille.bidan [OP] Well-Known Member

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    Maybe I am driving more conservatively because the exhaust is louder. I don't know. I do know I am getting better fuel economy.

    My last tank was 21MPG, and is was half/half HWY/CITY and stop-n-go traffic. This is a record tank Average for me.

    When the Shop owner said he tested his mufflers, and they all let to better MPG. I thought it was straight BS, but i didn't care because his prices were so reasonable.
     
  10. Mar 11, 2019 at 9:58 PM
    #30
    Roddy13

    Roddy13 Well-Known Member

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    I track all my mpg’s also so I really appreciate you sharing. I’m considering exhaust work after levelling and plus sized tires. If I got 1mpg extra I would be happy
     
  11. Mar 11, 2019 at 10:00 PM
    #31
    shr133

    shr133 Well-Known Member

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    K & N filter, 275 70 17 Cooper AT3, OME Nitrocharger shocks, 884 Springs, Dakar leafs.
    For some reason only on Tacoma World no engine mods ever help and are completely useless unless you add a supercharger....
    Thanks for the post...
     
    moon taco likes this.
  12. Mar 11, 2019 at 10:11 PM
    #32
    bagleboy

    bagleboy Well-Known Member

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    I've yet to see anyone post the 500 miles that 27-28 mpg should have taken them for a tankful. Usually 25-75 miles accompany those higher average screen shots. I know its possible to go that far but just haven't seen high average over long distance in pics like that. My Dad's Prius hits 100 every time it coasts but lifetime average is less than half that so while the screen shots of a momentary consumption may be accurate mpg isn't useful as a momentary figure but only over long distances.
     
    HacksawMark likes this.
  13. Mar 21, 2019 at 10:15 AM
    #33
    BlasterJoe

    BlasterJoe Well-Known Member

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    Does Matt from OVtune have an exhaust that he likes or recommends?
     
  14. Mar 21, 2019 at 11:16 AM
    #34
    Kamille.bidan

    Kamille.bidan [OP] Well-Known Member

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    My three month average has risen to 20MPGs according to my computer, and I monitor my tanks every time I fill up. I definitely had an increase in MPG of about 1.

    It's not worth all the noise though.

    I bought a resonator, and while it significantly tamed the drone, it sounds like a Honda Ricer now. I do not like that sound. I am just going to go back to at least a three chamber muffler.


    I have already spent 400 bucks on this, which could have gone to something more useful. Lesson learned.
     
    shakerhood likes this.
  15. Mar 21, 2019 at 11:21 AM
    #35
    stealthmode

    stealthmode Well-Known Member

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    This is true. Ive had both lol
     
  16. Mar 21, 2019 at 11:24 AM
    #36
    HacksawMark

    HacksawMark Well-Known Member

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    1 mpg increase is not all that significant. My last three tanks are averaging about 1 mpg increase due to warmer weather and no longer using winter mix fuel.
     
  17. May 6, 2019 at 5:59 PM
    #37
    Kamille.bidan

    Kamille.bidan [OP] Well-Known Member

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    I switch to a black widow muffler for about a month now. The Black Widow keeps a the low-end and remains quiet at freeway speeds. It's exactly how black widow claims.

    However, My MPG has gone back down after removing the previous muffler. Also, I do feel a slight loss in power with the new muffler. I know it's butt dyno, but that's all I have.
     

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