User Tag List

+ Reply to Thread
Results 1 to 5 of 5

Thread: new cams - what to change

  1. #1
    Tyre Kicker

    Join Date
    Nov 2013
    Location
    Germany
    Age
    39
    Posts
    48
    Thanks
    0
    Thanked 0 Times in 0 Posts

    new cams - what to change

    Hi,

    I'm planing to install Piper DUR1892 cams.
    The engine runs with a Cosworth Roller Barrel and Omex600 since one year, without any problems.
    Everything else is standard.
    My question is, what should be changed when using other/those camshafts?
    More fuel, of course - but what about the ignition? Completely increase?

  2. #2
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,110
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: new cams - what to change

    in all probability it will want more ignition at low rpm and less at high, but a dyno or rolling road is only way to really findout

  3. #3
    Tyre Kicker

    Join Date
    Nov 2013
    Location
    Germany
    Age
    39
    Posts
    48
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: new cams - what to change

    is it necessary to use vernier pulley

  4. #4
    Tyre Kicker

    Join Date
    Nov 2013
    Location
    Germany
    Age
    39
    Posts
    48
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: new cams - what to change

    after a few testdrives with the new cams the fuelmap is done.
    Is it possible, that it is not need to increase the fuel at wot after 4500rpm?

    Click image for larger version Name:	fuel.jpg Views:	82 Size:	94.1 KB ID:	78481

  5. #5
    Spanner Monkey

    Join Date
    Mar 2010
    Location
    Holland
    Age
    32
    Posts
    252
    Thanks
    32
    Thanked 11 Times in 11 Posts

    Re: new cams - what to change

    Yes my fuel is normally like that to

+ Reply to Thread

Bookmarks

Posting Permissions

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