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Apex head porting?

Discussion in 'Mod Results' started by lawndoctor, Dec 11, 2012.


  1. lawndoctor

    lawndoctor Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    63
    Location:
    Frankenmuth, MI
    Anyone have porting and cam timing adjusted on an apex? If so, was there truly a difference? Thanks for any info.
     
  2.  

  3. FireStone

    FireStone Pro

    Messages:
    138
    Location:
    Quebec-Canada
    call hurricane in ont. Canada
    good job gives you 20hp
     
  4. lawndoctor

    lawndoctor Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    63
    Location:
    Frankenmuth, MI
    I appreciate the referral, however I'm looking for real world experience with this one. I've already talked with OSP that is near me and has an outstanding rep. Just would like to hear first hand if its worth $100 per hp.
     
  5. Macheater

    Macheater TY 4 Stroke Junkie

    Messages:
    597
    Location:
    Niles, Ohio
    Country:
    USA
    Snowmobile:
    2006 Apex GT, 2009 Phazer RTX, 2002 SRX700
    LOCATION:
    Niles, Oh
    Would like to know more about that as well. With all due respect to Hurricane Performance, 20HP through head porting sounds too good to be true. Usually you can get an extra 3-5hp with just a good multi-angle valve job. A stage 1 port job on a modern 4-stroke head with valve job is typically good for 6-10 hp.

    If there claims are accurate, I would be standing in line. Actually, I think the price on the work is $1200 if memory serves. That would put it at 1200/20=$60 per horsepower which is a great deal.

    A yamacharger produces about 20hp on the apex and cost around $2200.
     
    Nemesis6 likes this.
  6. lawndoctor

    lawndoctor Lifetime Member Lifetime VIP Member VIP Member

    Messages:
    63
    Location:
    Frankenmuth, MI
    Porting update

    I had the head ported and did some minor tuning updates to he clutching and fuel. I tested against a well running apex that i would run neck and neck with last year. This results were much improved as I never lost a race in 660 through a half mile. I would like to get the sled on an engine and track Dyno. Anyone know of a shop in the mid Michigan area?
     
  7. BOUNTYHUNTER

    BOUNTYHUNTER Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    4,909
    Location:
    WINTERPEG / MANITOBA / CANADA
    Are you sure??
    I know Dave is very good with his stuff but that does sound a little high, Great if that's so

    What that worth to have done?
     
  8. BOUNTYHUNTER

    BOUNTYHUNTER Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    4,909
    Location:
    WINTERPEG / MANITOBA / CANADA
  9. Macheater

    Macheater TY 4 Stroke Junkie

    Messages:
    597
    Location:
    Niles, Ohio
    Country:
    USA
    Snowmobile:
    2006 Apex GT, 2009 Phazer RTX, 2002 SRX700
    LOCATION:
    Niles, Oh
    BOUNTYHUNTER read that thread. There is no doubt in my mind that a good porting/valve job will add power and performance. Its just that 20hp, as I already stated, sounds awfully high. Now if ur adding thinner head gasket, ignition lead, exhaust work, and the entire package comes out to 20 or so, that's a different story.

    Still, even if the increase would come out to say half of that (10hp), I would still be interested. I figure I gained about that much (on my 06 Apex) with the PCIII&ign box, ramair lid, and full excell exhaust. And all those items together cost much more than $1200.
     
  10. BOUNTYHUNTER

    BOUNTYHUNTER Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    4,909
    Location:
    WINTERPEG / MANITOBA / CANADA

    Absolutely.....there was timming sprockets/chain as well for that.

    I remember cubby telling me it was a MONSTER for a NAE, NICE alternative to having a boosted sled

    but that's just my opinion
    :flag:
     
  11. Frozenstiff

    Frozenstiff TY 4 Stroke Junkie

    Messages:
    616
    Location:
    Prescott, Ontario
    Country:
    Canada
    Snowmobile:
    2013 Arctic Cat Turbo
    I agree, it isn,t just getting the head done, you,ll need a fuel controller and some other goodies as well. You,ll be into 2500.oo bucks pretty easy, if not more.
     
  12. ghost rider

    ghost rider Suspended

    Messages:
    497
    Location:
    Muskoka, Ontario, Canada
    Country:
    Canada
    Snowmobile:
    Rxwarrior
    LOCATION:
    Muskoka , Ontario
    Agreed I did this before I came I went to the turbo.... Love the sound of a NA 4 cylinder
    With 180 hp. Did the head port, valves, cam, high compression pistons..... All to get 187hp
    It sounded like no other 4 stroke and was very fast however the turbo was ( at the end if the day) only 1 k more and it can spool up to 14 lbs of boost @ 260 hp -plus.
    But it will never have that sound at idle....... Like a big block Chevy
     
    justin gallant likes this.
  13. justin gallant

    justin gallant Expert

    Messages:
    235
    Location:
    moncton
    Country:
    Canada
    Snowmobile:
    2006 apex GT
    LOCATION:
    moncton new-brunswick
    Got videos of That??
     
  14. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,920
    Location:
    Niverville MB Canada
    He wont be able to reply. The line through his user name means that he has been banned.
     
    justin gallant likes this.
  15. justin gallant

    justin gallant Expert

    Messages:
    235
    Location:
    moncton
    Country:
    Canada
    Snowmobile:
    2006 apex GT
    LOCATION:
    moncton new-brunswick
    Still I'd like to hear an apex that sounds like a v8 lol
     
  16. steiner

    steiner Moderator Staff Member Moderator Lifetime VIP Member VIP Member

    Messages:
    3,920
    Location:
    Niverville MB Canada
    Here you go
     
    justin gallant likes this.

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