Close

Results 1 to 6 of 6
  1. #1
    Join Date
    Nov 2009
    Location
    la la land
    Posts
    298
    Rep Points
    256.1
    Mentioned
    0 Post(s)
    Rep Power
    3


    Yes Reputation No

    Someone try this...

    Once your car is warmed up, come to a stop. Put the car in neutral. Bring the revs up to around 1500rpm and hold them there. Do you feel any kind of vibration?

    Just curious if this is just my car or everyone else, too. It's a slow vibration that happens only at around 1500. Everywhere else is smooth.

  2. #2
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,356
    Rep Points
    32,764.6
    Mentioned
    2133 Post(s)
    Rep Power
    328


    Yes Reputation No
    Do you have an exhaust?
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #3
    Join Date
    Nov 2009
    Location
    la la land
    Posts
    298
    Rep Points
    256.1
    Mentioned
    0 Post(s)
    Rep Power
    3



    Yes Reputation No
    Yup, RPI rear section with OEM x-pipe + front cat delete

    There is a rhythmic vibration I can feel when the engine is held at 1500rpm. I can't tell if it's just a characteristic of the engine or if it's a miss/imbalance.

    If someone else could test it out then I'll know if it's just normal behavio.

  4. #4
    Join Date
    Jan 2010
    Location
    SoCal
    Posts
    120,356
    Rep Points
    32,764.6
    Mentioned
    2133 Post(s)
    Rep Power
    328


    Yes Reputation No
    Click here to enlarge Originally Posted by fstop7 Click here to enlarge
    Yup, RPI rear section with OEM x-pipe + front cat delete

    There is a rhythmic vibration I can feel when the engine is held at 1500rpm. I can't tell if it's just a characteristic of the engine or if it's a miss/imbalance.

    If someone else could test it out then I'll know if it's just normal behavio.
    It's the exhaust most likely, mine would vibrate as well just don't remember the RPM but it was somewhere around there.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  5. #5
    Join Date
    May 2010
    Location
    On a Isalnd
    Posts
    149
    Rep Points
    77.0
    Mentioned
    0 Post(s)
    Rep Power
    0


    Yes Reputation No
    I just tried it ... I have a really soft vibration

  6. #6
    Join Date
    Nov 2009
    Location
    la la land
    Posts
    298
    Rep Points
    256.1
    Mentioned
    0 Post(s)
    Rep Power
    3



    Yes Reputation No
    Cool, thanks. All that bearing talk on the other forum had me wondering. Sounds like it's normal though. Still gonna pull the spark plugs to see how they look. Overall my car seems to be running better since getting the OEM DME updates. Makes me wonder if there was a bug in the early 2008 engine management.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •