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More power?

Discussion in 'Performance' started by braeden heberlie, Aug 15, 2016.

  1. braeden heberlie

    braeden heberlie New Member

    just bought a 2001 carry automatic 4x4 looking to do a few mods, air box mod to increase air flow and remove or take the guts out of the catalytic converter and maybe a different muffler.

    Think this will add more power or hurt the performance?
     
  2. Tony Evers

    Tony Evers Active Member

    good idea take off catalyltic converter and throw as far as possible . you could also add a blower for air that runs off crank. wow now your cooking
     
  3. braeden heberlie

    braeden heberlie New Member

    Thanks man wonder if a belt driven smog pump would work ??
     
  4. ttc

    ttc Active Member

    Leave the cat... But ditch the stock muffler Maybe look at a k&n filter.
     
  5. braeden heberlie

    braeden heberlie New Member

    I've heard those small cats like the one on my truck are very restrictive though? Yeah I see a k&n filter in my future
     
  6. ttc

    ttc Active Member

    I would leave it, cats have not been that restrictive since the 70s.
     
  7. braeden heberlie

    braeden heberlie New Member

  8. ttc

    ttc Active Member

    With a more free flowing muffler I find my hijet has a little more up and go but best of all it is better on big hills and takes way less peddle to maintain speed
     
  9. braeden heberlie

    braeden heberlie New Member

    That's the problem I have with mine is big hills! Other then that I love it
     
  10. ttc

    ttc Active Member

    I am also running 13 inch rims and the tires are about 7% taller and the engine notices the loss in torque
     
  11. HemiBob

    HemiBob New Member

    Anyone have a recommendation for a different muffler?
     
  12. braeden heberlie

    braeden heberlie New Member

    I'm running 12 rims with 23x8 mud tires all stock for now
     
  13. ttc

    ttc Active Member

    You could always swap in a 1.6 out of a geo tracker
     
  14. braeden heberlie

    braeden heberlie New Member

    Wonder how that fits? Has it been done before?
     
  15. braeden heberlie

    braeden heberlie New Member

    I was thinking of using a atv muffler
     
  16. ttc

    ttc Active Member

    I put on a walker muffler the same as fupa put on his. I also found a k and n filter that fit by using the filter look up by size on their website. Another thing would be a bit more timing advance, I dont have my timing light ATM so I can't try advancing my timing yet.
     
  17. braeden heberlie

    braeden heberlie New Member

    K thanks I'll have to look around before I decide on a muffler
     
  18. HemiBob

    HemiBob New Member

    Not having any experience with ATV's, do you think it will be louder - same - quieter?
     
  19. braeden heberlie

    braeden heberlie New Member

    Depends on type of muffler, if it's a race ish type of muffler yeah it'll be louder but they have performance mufflers out there that are quite
     
  20. greg0187

    greg0187 Moderator Staff Member

    I've seen several folks use a OEM take off sport bike muffler. They can usually be picked up on craigslist or ebay cheap.
     
  21. braeden heberlie

    braeden heberlie New Member

    So a little update

    I knocked the guts out of my cat, helped throttle response
    I picked up a small tractor muffler (haven't installed yet)
    Also have a k&n filter on the way
    And E3 Spar plugs on the way
     
  22. braeden heberlie

    braeden heberlie New Member

    Okay another update muffler is on sounds okay e3 spark plugs installed waiting on k&n and it'll be done ( for now ) lol.

    Probably jump up to a higher octane fuel to accommodate the hotter plugs .

    Definitely made a power difference for sure
     
  23. ttc

    ttc Active Member

    I always run highest test fuel
     
  24. braeden heberlie

    braeden heberlie New Member

    Yeah usually I try to also but I didn't have any at the moment
     
  25. KCCats

    KCCats Member

    So what muffler did you all find?
    I just got a 91 MDb51T with the 660.
    I am a Moderator on 'SnowmobileForum.com'
    Has anyone ever gotten there hands on a Arctic Cat 660 turbo motor? Its 125hp!
    Even the non turbo motor is 80hp!
     
  26. braeden heberlie

    braeden heberlie New Member

    I just used a tractor muffler on mine , as far as the artic cat motor every thing I've read says it won't work without a lot of $$$$$
     
  27. KCCats

    KCCats Member

    I plan on just using the EFI system to increase the HP to 80hp!
     
  28. KCCats

    KCCats Member

    I may even make a header?
     
  29. mitsu98

    mitsu98 New Member

    I used an exhaust off a 600cbr i4 .works excellent! Good tone! I'll post a pic tomorrow of it installed.
     

    Attached Files:

  30. Bamboozle

    Bamboozle New Member

    Hey do you have a picture of the exhaust after installation? How easy was it to retrofit?
     

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