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MT clutch question

Discussion in '3rd Gen. Tacomas (2016+)' started by tonelover, Jul 11, 2018.

  1. Jul 11, 2018 at 3:10 PM
    #1
    tonelover

    tonelover [OP] Well-Known Member

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    So even though I was driving my last manual transmission for 20 years, now I have a 3rd gen and am reading about how to drive and be as easy on the clutch as possible. One thing I've noticed is that shifts themselves are pretty smooth, but much of the time when I depress the clutch pedal I don't get the quick drop in RPM's before shifting that I'm used to. With this 3rd gen it seems that the RPM's stay pretty high and drop slowly until I shift. So the sensation I'm getting is that the clutch is still spinning pretty rapidly when I shift and it just feels like its a clutch burning burning environment. Otherwise I can hold the pedal in until the RPM's settle down but that's bad too. I know it's hard to describe but does this sound normal?
     
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  2. Jul 11, 2018 at 3:14 PM
    #2
    c.morris89

    c.morris89 Well-Known Member

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    Completly normal.
     
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  3. Jul 11, 2018 at 3:15 PM
    #3
    Comb

    Comb Well-Known Member

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    Yes, this is normal for the drive-by-wire throttle on this truck.
     
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  4. Jul 11, 2018 at 3:20 PM
    #4
    MOC221_

    MOC221_ Well-Known Member

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    It is normal for the 3rd gen V6 M/T, yes. You'll see it referred to as rev hang.
    Manufacturers have been doing this intentionally for a number of years now, it's supposed to help with emissions.

    https://www.carthrottle.com/post/rev-hang-explained-and-why-petrolheads-hate-it/
     
  5. Jul 11, 2018 at 6:38 PM
    #5
    tonelover

    tonelover [OP] Well-Known Member

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    Thanks MOC, that article is exactly what I'm describing. And yes, sometimes the RPMs even feel like they are increasing for a short time. The whole thing really does make for a lack of quick shifting if I want to be easy on the clutch. At least I know I'm not alone.
     
    Last edited: Jul 11, 2018
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  6. Jul 11, 2018 at 7:59 PM
    #6
    SpaceTrim

    SpaceTrim Active Member

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    Does anyone know if the Ovtune could help with this?
     
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  7. Jul 12, 2018 at 4:15 AM
    #7
    MOC221_

    MOC221_ Well-Known Member

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    It has been brought up in the OVtune M/T thread a few times, but TBH there's a mixed reaction to eliminating it.

    On the one hand, some say "it's not a race car, who cares?". Then there are those who find it annoying to varying degrees.

    Wait, there is a third camp who say it's just the mass of the flywheel.

    Anyway, I recall Mat (the master tuner) posting that he'd found the code or table etc that controls this. IIRC he's not said directly that he's altered rev hang though.

    Can it be done? I believe it can, but we'll have to wait and see.

    @iexc , you up for asking him again lol?
     
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  8. Jul 12, 2018 at 6:11 AM
    #8
    stun gun

    stun gun Has tardigrade DNA

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    Was gonna say a bunch of stuff and then remembered people like different things, and I like that we all like different things, and I support people chasing their different Tacoma related things. As weird or futile as it is. For the life of me I do not get adding MORE sway bars. Dicking around with engine parameters. And feverishly trying to turn this truck into a giant road-trucking Miata. Especially remembered some people here who are obsessed with that are some of my favorite posters. I feel like I want to help you guys so badly but really all I can do is drive you to the nearest Mazda dealership and help you make bad decisions. You don’t even need to pay for gas, I got you fam. That’s the kind of friend I am.
     
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  9. Jul 12, 2018 at 6:37 AM
    #9
    Comb

    Comb Well-Known Member

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    This thing does have a heavy flywheel. In fact, URD offers an even heavier flywheel for crawling and bigger tires and such. But for the 2nd gen, they also offer a lightweight flywheel, probably aimed at those with a supercharger. I think that's probably what some people on here really want, so perhaps they will make it for the 3rd gen once we see some FI kits come out.
     
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  10. Jul 12, 2018 at 6:41 AM
    #10
    tacoguy88

    tacoguy88 Well-Known Member

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    Do you even drive a manual? its extremely annoying when you either have to take your foot off the gas 3 seconds before you want to shift or have to hold the clutch in for 3 seconds for the rpms to drop. rev matching isn't a racing thing or a trying to be something your not thing, its a driving thing that's vital for long drivetrain life.
    as far as the OP goes, have you tried seeing how quickly the revs drop in natural at a standstill? bet you'll notice its the same.
     
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  11. Jul 12, 2018 at 6:44 AM
    #11
    MOC221_

    MOC221_ Well-Known Member

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    .. and more than a few times, the zany things ppl ask for in the tune threads end up uncovering things that make things better for all who are tuned. Dicking with engine parameter things.

    Because things.

    We are obsessed, that's for sure.

    :)
     
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  12. Jul 12, 2018 at 6:45 AM
    #12
    stun gun

    stun gun Has tardigrade DNA

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    Omg like so annoying. GET IN bro we’re going to Mazda
     
  13. Jul 12, 2018 at 6:46 AM
    #13
    tonered

    tonered Well-Known Member

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    The miata is THEE answer. Always wanted one and thoroughly enjoyed the one drive that I had in a friend's NA. My soon-to-be 16yr old really likes them, annnnnnd the NBs have some really great prices right now.
     
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  14. Jul 12, 2018 at 6:46 AM
    #14
    DaveInDenver

    DaveInDenver Not Actually in Denver

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    I don't find it offensive in my 2008, it's pretty similar to my old 22R-E with the dash pot functioning. I once took that off my throttle body and having it slam shut was actually worse. The long throw of the W56 shifter and heavy flywheel meant that it was pretty tough to row through gears fast enough to rev match and the RPMs would be at idle too fast. So I put it back in.

    But they may be getting more aggressive with it and I've haven't tried a 3rd gen. We bought a 2017 Forester with a stick shift and the revs hang there so long it's almost like a stuck cruise control. Subaru actually remapped their engine to reduce it under an optional TSB. We had it done it's pretty similar to my 1GR now.
     
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  15. Jul 12, 2018 at 6:47 AM
    #15
    stun gun

    stun gun Has tardigrade DNA

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    I made fun of them a lot. Until I drove a track beast for about a minute, they’re cool as hell.
     
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  16. Jul 12, 2018 at 6:56 AM
    #16
    tonered

    tonered Well-Known Member

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    Yeah. A lot of folks laugh that I want one. But then, most folks don't understand MTs.
     
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  17. Jul 12, 2018 at 7:05 AM
    #17
    Comb

    Comb Well-Known Member

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    But the Miata a chick car... :D
     
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  18. Jul 12, 2018 at 7:07 AM
    #18
    tonered

    tonered Well-Known Member

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    :rofl::rofl::rofl:

    I've never seen a guy that wasn't smiling while driving one. :burnrubber:
     
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  19. Jul 12, 2018 at 7:07 AM
    #19
    Comb

    Comb Well-Known Member

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    It's not though. It's been shown that the throttle response in neutral is different than when in gear, clutch in or out. @MOC221_
     
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  20. Jul 12, 2018 at 7:13 AM
    #20
    Jibbs

    Jibbs "When in doubt, throttle out!"

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    This isn't really 'bad' for anything except a throwout bearing. If your pedal is in enough that the clutch is disengaged, you aren't burning anything.

    Like others have already said, rev hang is super bad on pretty much every modern MT. If you want to solve this problem, you can either turn your AC on full blast, or get a sportbike!

    All this said, this is a truck, not a race car, and you don't really need to shift quickly in 90% of circumstances, IMO.
     
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