Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

VF Redline power upgrade

Discussion in 'VF Holden Commodore (2013 - 2017)' started by noboot, Mar 26, 2014.

  1. GH05T

    GH05T New Member

    Messages:
    410
    Likes Received:
    1
    Trophy Points:
    0
    Joined:
    Sep 19, 2005
    Location:
    Adelaide
    Members Ride:
    VF SSV Ute
    just to update, the reason they are so much quieter is they have used a huge.... and i mean fkin huge duel resonators.
    these are supposed to remove and crackle on downshift... which i miss. and they make it much quieter.... i am currently removing mine thank you very much.


    [​IMG]
     
  2. Flukey

    Flukey New Member

    Messages:
    503
    Likes Received:
    4
    Trophy Points:
    0
    Joined:
    Jan 28, 2014
    Location:
    Melbourne
    Members Ride:
    VF SSV Redline
    Let us know what it sounds like Gho5t when you are done.
     
  3. GH05T

    GH05T New Member

    Messages:
    410
    Likes Received:
    1
    Trophy Points:
    0
    Joined:
    Sep 19, 2005
    Location:
    Adelaide
    Members Ride:
    VF SSV Ute
    i will try to take a video/ sound byte before and after,
    will be within the next few weeks when i can find the time.
     
  4. offshore

    offshore Member

    Messages:
    32
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Oct 20, 2013
    Location:
    Canberra
    Members Ride:
    VF SSV Redline
    Those long mufflers mate are great because they get rid of drone if you take them out you will have drone.
     
  5. PIR4TE

    PIR4TE Banned

    Messages:
    2,747
    Likes Received:
    58
    Trophy Points:
    0
    Joined:
    Mar 15, 2011
    Location:
    AWOL with Ari
    Members Ride:
    Black Pearl
    I have just been through all that, testing size / sound moan and drone thing. Those resonators do bugger all, nothing for drone. GH05T is correct they attenuate higher frequency like rasp and crackle at the expense of velocity. Not a good thing otherwise stuffs up the function of a proper x-pipe. Better off straight through from cat back and canon after the second harmonic (behind the x), before the silencers.

    BTW I doubt those DPE silencers are built to cancel drone anyway! If that is an issue at some point then run a pipe to counter the stock resonance, like I did, like this:

    [​IMG]

    Pipe (helmholtz resonator) tucks around between spare and bumper, still loud and sexy but you never need to worry about drone again.
     
  6. offshore

    offshore Member

    Messages:
    32
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Oct 20, 2013
    Location:
    Canberra
    Members Ride:
    VF SSV Redline
    How do they reduce velocity there straight through and they have done countless hours of dyno and track testing with these. Mine doesnt drone at all with the 3inch DF 1 7/8 long tubes but mines a manual. There really setup for big HP mine now has a real bark and urgency to it compared to when it was just on a stock L77 with tune.
     
  7. PIR4TE

    PIR4TE Banned

    Messages:
    2,747
    Likes Received:
    58
    Trophy Points:
    0
    Joined:
    Mar 15, 2011
    Location:
    AWOL with Ari
    Members Ride:
    Black Pearl
    The resonators do no good performance wise as I said.

    And they are still fricken useless apart from reducing bark.

    I doubt that very much given all you have said.

    What does that mean, a drag car or speed boat airplane or something? Sounds like an excuse for not being ideal for your car, maybe lacks mid range? Got a dyno sheet?

    Urgency to get an up-to-date system that suits your car! A video would do the trick.
     
  8. offshore

    offshore Member

    Messages:
    32
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Oct 20, 2013
    Location:
    Canberra
    Members Ride:
    VF SSV Redline
    For a dyno sheet mid range check the last post in the dyno page
     
  9. PIR4TE

    PIR4TE Banned

    Messages:
    2,747
    Likes Received:
    58
    Trophy Points:
    0
    Joined:
    Mar 15, 2011
    Location:
    AWOL with Ari
    Members Ride:
    Black Pearl
    Thanks for that, I thought as per thread you were talking VF Redline with the L77. Yes those headers would suit a 6.2, and with all the extra power the supercharger gives any loss with the long resonator is not as important.

    So you are putting the LSA in front of a manual?
     
  10. offshore

    offshore Member

    Messages:
    32
    Likes Received:
    0
    Trophy Points:
    6
    Joined:
    Oct 20, 2013
    Location:
    Canberra
    Members Ride:
    VF SSV Redline
    Its already in with the twin plate clutch goes hard. The best thing about these motors is the torque and instant response no lag its getting setup for road racing not drags.
     
  11. GH05T

    GH05T New Member

    Messages:
    410
    Likes Received:
    1
    Trophy Points:
    0
    Joined:
    Sep 19, 2005
    Location:
    Adelaide
    Members Ride:
    VF SSV Ute
    yeah i speak to the walkenshaw guys a bit. they use these to reduce noise for a more road friendly package. they dont use them for performance but they dont hinder it too much.
    i just prefer a bit more noise that i got.
    also dron would concern me more if i had a sedan but i have a ute, their is no additional cabin drone.
    also drone will come more from the size of the pipes and rear mufflers than anything else.

    walkenshaw know their older setup was more agressive, i just wish i knew that before purchasing.
     

Share This Page