Lightened and balanced flywheel

  1. #1
    As above really, when i get the clutch done will probably be getting one of these fitted as heard the gains are substantial.

    I know demon tweeks do the helix one, works out at about £315 inc VAT.

    Anywhere else that do them? For the later 98bhp silver top vtr.

    Thanks.
  2. #2
    not sure but would not mind one my self .as you said not sure were do them im sure someone on here will know or have one
  3. #3
    Yeh, demon tweeks do them but thats like i said the only place where i can find them.
  4. #4
    QEP machine OE ones.
  5. #5
    Quote:
    Originally Posted by Ryan View Post
    QEP machine OE ones.
    Right. How much does this cost roughly?

    Is it worth doing? Is it a worth while doing on an engine currently fitted with a green panel filter/ss race exhaust/janspeed 4-1 mani + sports cat?
  6. #6
    be cheeper getting cams and see more gain
  7. #7
    Always thought there quite expensive for what they are, there are quite a few machinist companies that can do the OE ones.
  8. #8
    Quote:
    Originally Posted by sliderz View Post
    be cheeper getting cams and see more gain
    Lol. No it wont.

    Cam.
  9. #9
    Quote:
    Originally Posted by SaXo_vtr123 View Post
    Always thought there quite expensive for what they are, there are quite a few machinist companies that can do the OE ones.
    Yeh, something i will have to look into me thinks!
  10. #10
    Try lyndale engines down 2nd drove they may be able to do the oe one.
  11. #11
    Quote:
    Originally Posted by swampy View Post
    Try lyndale engines down 2nd drove they may be able to do the oe one.
    Where is "2nd drove" lol.
  12. #12
    Quote:
    Originally Posted by sliderz View Post
    be cheeper getting cams and see more gain
    why wont it be cheaper getting cam

    http://www.gmcmotorsport.co.uk/index...roducts_id=237
  13. #13
    Quote:
    Originally Posted by sliderz View Post
    Lol.

    And then the uprated springs, lifters and followers, the vernier pulley, new cam belt kit, head skim, head gasket, labour costs oh and a map.......
  14. #14
    Quote:
    Originally Posted by DanT View Post
    Lol.

    And then the uprated springs, lifters and followers, the vernier pulley, new cam belt kit, head skim, head gasket, labour costs oh and a map.......
    not for light cams you wont need a maping and as for all the rest of the stuff alot dont change that and labour depends on how good you are with cars i gues when you say labour how much will labour be putting the fly wheel on
  15. #15
    Quote:
    Originally Posted by sliderz View Post
    not for light cams you wont need a maping and as for all the rest of the stuff alot dont change that and labour depends on how good you are with cars i gues when you say labour how much will labour be putting the fly wheel on
    If your going to cam an 8valve. You might as well do it properly. None of this sticking a cam in the head and hoping it will run ok and see a small gain.

    I would have thought its better to be serious about it. Get something done you will actually notice, get some decent lift and a strong rebuilt head along with a noticeable power gain.

    Labour on a flywheel depends how quick my good old brother can whip it in on the lift.
  16. #16
    Quote:
    Originally Posted by DanT View Post
    If your going to cam an 8valve. You might as well do it properly. None of this sticking a cam in the head and hoping it will run ok and see a small gain.

    I would have thought its better to be serious about it. Get something done you will actually notice, get some decent lift and a strong rebuilt head along with a noticeable power gain.

    Labour on a flywheel depends how quick my good old brother can whip it in on the lift.
    yes getting things done write i totaly agree with you on that .. dont get me wrong ive been thinking of getting one my self ... but you said about is it worth it and the gain.. so all i was trying to say alot of people do that type of stuff when there is no other way of gaining more power
  17. #17
    Yeh true....

    Meh lol.

    Just it seems a bit of a "dark art" to me this lightened and balanced flywheel thing.
  18. #18
    what is the spec of your car at the moment and what car is it
  19. #19
    Why would you skim the head to fit cams, are you a complete tool or is that a rinse?
  20. #20
    alot of people skim head to increase compression apparently....
  21. #21
    Problem with skimming the head when fitting cams is you have to be careful with the extra lift so as not to get valve to piston contact.
    2nd drove is in peterborough!
  22. #22
    Quote:
    Originally Posted by MiniGibbo View Post
    Why would you skim the head to fit cams, are you a complete tool or is that a rinse?
    If your fitting a new head gasket.....?
  23. #23
    Quote:
    Originally Posted by DanT View Post
    If your fitting a new head gasket.....?
    Surly youd just pop the timing belt off remove the cam with the head intact then jsut bolt it back up on all the timing marks?

    Like wasting money?

    EDIT: and skimming a head every time its off casues more problems than leaving it alone.. fact.
  24. #24
    Right.

    Could a company like QEP port and polish the head/work their magic on it without taking it off the car?
  25. #25
    True, you should only skim the head if its being overheatd.
    Just get it checkd for flatness each time.as they can warp if undone incorrectly.
    If the hg isnt showing signs of failure id just swap the cam over with a new timing belt and vernier pulley.
    The springs only need doing on the wilder type cams.
  26. #26
    No you cant p and p a head with it on the car.
    1. Swarf will get in engine and ruin bores/rings
    2.how can they flow bench it on the car?
  27. #27
    Quote:
    Originally Posted by swampy View Post
    True, you should only skim the head if its being overheatd.
    Just get it checkd for flatness each time.as they can warp if undone incorrectly.
    If the hg isnt showing signs of failure id just swap the cam over with a new timing belt and vernier pulley.
    The springs only need doing on the wilder type cams.
    Ok thanks.

    How wild are we talking? Wilder than a PH3?

    cheers.
  28. #28
    You asked for fitting cams obviously if the heads being ported then it has to come off but i wouldnt honestly skim it unless its like a bananna.

    Which btw the way some heads are warped from new they flattern when tourqed down by design. When checking these jsut look for pitting/scoring.
  29. #29
    Quote:
    Originally Posted by MiniGibbo View Post
    You asked for fitting cams obviously if the heads being ported then it has to come off but i wouldnt honestly skim it unless its like a bananna.

    Which btw the way some heads are warped from new they flattern when tourqed down by design. When checking these jsut look for pitting/scoring.
    Ok man cheers. I just wouldnt mind spending a bit of money on getting a reasonably bullet proofed 8v head and a map to suit.
  30. #30
    you have to remove the head on an 8v tu engine to change the cam.

    And then you should check it for flatness to see if it needs skimming. In most cases it will, but only by a small amount. last time i took the head off my 16v engine i had to skim it by 0.06mm to make it true again.