another cam question (8v)

  1. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #1
    in the early black tops are all the cams the same from the 1.0, 1.1, 1.4 to the vtr?./
    i heared the vtr cam was a bit naff..
    i took the cam out of the vtr engine and visually compared it with one from a 1.1 ax engine and the looked identical, though i looked at one from a carbed ax gt engine and that seemed to have a higher lift.
    so i was just wondering is there any 8v engines with a better standard cam than the vtr one?... i was thinking ax gti as its pushing 100bhp compared to 90bhp of the vtr.. and ax gti is 1360 where as vtr is 1.6..
    any clues lads?.
  2. Frequent Poster Joined: Jun 2006 Cannock Posts: 973 Citroen AX VTS
    #2
    AX gti is about one of the best but aren't we forgetting the S1 rallye?... 1.3 and 100bhp!... hmmmmmmmmmm....
  3. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #3
    lol..whatsyourbeef?... yeah we are but i cant get hold of a rallye cam unless i mug rallyeax so, the only option i have atm is gti..
    somebody on axoc seems to think that all mpi cams are the same and its all done by the ecu map, i think thats bull crap because how can you map an engine to something its not capable of..
    so, yeah i`ll take your word for it!.
  4. Frequent Poster Joined: Jun 2006 Cannock Posts: 973 Citroen AX VTS
    #4
    Seriously the Gti has a better cam... which affects the valve timings... iirc the VTR has bigger valves... yet it pushes less power than a 1.4 gti?... for this to be untrue would be a huge failure in common sense.... but yes some of it does have to do with the map and the high rev factor
  5. Saxperience Post Whore Joined: Feb 2006 northumberland Posts: 7693 pulsar gtir, mk4 astra sxi
    #5
    does the 1.1 not havea bigger base circle? making it have less lift?
  6. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #6
    Quote:
    Originally Posted by Ax_beefy View Post
    but yes some of it does have to do with the map and the high rev factor
    i agree but, the high rev factor is determined by the cam isnt it?.. and the limiter of course, (but that can be removed with a standalone).
    and the map is suited to each particular engine is it not?, though can you have a dual map i,e one for performance and one for economy?..
  7. East Midlands Joined: Jun 2006 Derby Posts: 8305 Skoda Fabia VRS
    #7
    This thread maybe of some use to you matey!
  8. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #8
    which one matey? ahh you clever sod, i found it now...
  9. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #9
    yep, useful. but not the answer im looking for.
  10. Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289
    #10
    I heard the complete oposite to what you are saying i heard the vtr cam is already quite a good cam to have and compared to my piper 285 cam visually didnt look to be much difference infact i have a vtr cam in my back room and can get some pics up and measure lift etc would this help in anyway
  11. East Midlands Joined: Jun 2006 Derby Posts: 8305 Skoda Fabia VRS
    #11
    post it up an lets examine it closer
  12. Frequent Poster Joined: Jan 2006 swansea United Kingdom (Wales) Posts: 895 citroen ax vtr
    #12
    Quote:
    Originally Posted by stiffler69 View Post
    I heard the complete oposite to what you are saying i heard the vtr cam is already quite a good cam to have and compared to my piper 285 cam visually didnt look to be much difference infact i have a vtr cam in my back room and can get some pics up and measure lift etc would this help in anyway
    yep, would be lots of help!.