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Flywheel and MPG

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    #1

    Flywheel and MPG

    How would getting a lighter flywheel affect MPG? would it increase it in the city because there is less mass to turn, and decrease it on the highway because it has less mass which cannot hold/carry as much momentum as the heavier one?
    Or would it keep the highway the same, and only make the car slow down faster if you let go off the gas(manual). Like would it make the "engine brake" more effective?
    I think i understand this, but im a little iffy on the highway part and the let go of the gas part. Can someone elaborate, or completely explain how it affects the MPG if i have the wrong understanding of it?

    ----------------My 92 Honda Accord LX---------------------- My 97 Nissan 240sx LE----

    NE GUYS, Buy the last of my accord parts
    Tags: None
    #2
    It'll help the engine rev faster... which won't help gas mileage The weight savings may help, but honestly, I don't think it'll be significant either way. I did notice a little change when engine braking when I went to a 12lb flywheel.






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      #3
      like you mentioned, it will basically balance itself out. i got 26mpg with my h22a and it had a light flywheel and other basic bolt ons (jdm h22a header, no aftermarket)
      "As far as the prog references go, we embrace them. However, we would prefer our new moniker, which is a Mulligan stew of progressive rock, Bulgarian folk metal, rock ’n’ roll, ’80s disco and Christian rap that we like to call Munge." (Maynard James Keenan cited in Boston Herald, 2006)

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        #4
        Since the throttle will be more sensitive you'd have to adjust your driving in order for you not to over-rev or not to engine brake too much. I have the 8lb flywheel and its very driveable but you do have to throttle it more carefully.

        ...adjust accordingly

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