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Thread: Single mass flywheel conversion or something else?

  1. #1
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    Single mass flywheel conversion or something else?

    So I noticed recently that when revving the engine, after releasing the throttle there is a stall and then the rpms drop. So it will initially drop about 200rpms(ish) when I let off the throttle, then hangs for just a second, then the rpms drop. Its really not bad but its something new to me and I am wondering if it has anything to do with the single mass conversion flywheel or if this is possibly fuel system/vacuum system related. Thanks.

  2. #2
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    The flywheel just slows throttle response a little, both when giving it gas or backing off gas, with pedal down or in neutral. A single mass fw will do this a little less than dual mass fw. Neither will cause some slow-pause-resume response.

  3. #3
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    Interesting, this didn't happen before the flywheel conversion. Maybe the new disc is sticking a little? Maybe a leaky fuel injector?

  4. #4
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    Quote Originally Posted by FiberFast View Post
    Interesting, this didn't happen before the flywheel conversion. Maybe the new disc is sticking a little? Maybe a leaky fuel injector?
    So I think what I may be experiencing here is the single mass decelerating faster, but it has a little stall to it which is why bmw used the dual mass in the first place. It is no really that bothersome at all just something different.

  5. #5
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    I think the dual mass is for smoother transitions when shifting. Just my opinion.
    Attn. NEWBIES: Use the search feature, 98% has already been discussed.
    Click the search button, select "search single content type", select the "e36 sub forum" specifically, try the "search titles" then try the "search entire posts".

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