Results 1 to 10 of 10
  1. #1

    Join Date
    Aug 2012
    Location
    christchurch, new zealand
    Posts
    52

    emission control

    Can it be removed, does it reduce performance? and any other gains to be made with out spending Big money on Polaris 1200 Fitch 99 genises


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
    Join Date
    Jul 2007
    Location
    near Toronto, Canada
    Posts
    36,589
    +1
    1,272

    emission control

    What emission control are you asking about?

    Ficht engines cannot be modified for any significant power boosts. The Ficht engine management system is open loop, which means that it will NOT add fuel as air flow is improved. More air without more fuel will run the engine even more lean than stock, which is already quite lean.

    Modest gains can be had (on MSX 140) by inserting a second base gasket under each cylinder, which raises port timing.

    Shaving the cylinder heads can raise compression, within reason. Be sure to reinstall the coolant flow restrictors after machining the heads.

    The PLANET exhaust resonators do not significantly affect exhaust flow but they do help reduce exhaust drone and overall harshness.

    The main thing is to ensure the engine is in good condition internally, not worn or out of spec. And that the various sensors are working normally.

    There were several improvements over the years for the red Ficht 1200 engine.

    The exhaust manifold casting was revised circa 2003 to correct an exhaust flow issue which under certain conditions would burn up the rear PTO piston. The problem only affected some owners and was apparently aggravated or avoided by how the engine was used. My limited information suggests that prolonged operation just above idle speeds was not a good thing to do.

  3. #3
    Banned User
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    16,708
    +1
    1,324
    If you really want to mod it dump the injection and go with carbs. You might be better off buying a different machine though. I dont know of anyone who has really modded a genesis.

  4. #4
    Resident electronics hacker UnityRacing's Avatar
    Join Date
    May 2007
    Location
    Va Beach, VA
    Posts
    1,425
    +1
    28
    Sponsons, intake grate, and ride plate will be the best mods for a fuel injected Polaris !

  5. #5
    This is how I run a jetski shop in the desert nmpeter's Avatar
    Join Date
    May 2008
    Location
    Elephant Butte New Mexico
    Posts
    6,523
    +1
    1,270
    modifying the emissions systems is illegal. Not that the epa will beat your door down, BUT...if you find yourself in the spotlight for whatever reason, it can get really expensive.

    25 thousand bucks expensive

    btw, removing catalytic converters is considered tampering

    as I've said often, cheapest performance upgrade available is losing 25 pounds good for you life too!

    most two strokes can be sqeezed for a bit more power, but at a cost of engine life

    one possible approach on an injected ski is to replace the air temp sensor with a resistor that spoofs the engine into thinking the intake air is of a lower temp,which might provide more power, but again, it.s tampering, with small gains at large risks.

    lose the weight. I do not suggest modifications except for dedicated race ski.

  6. #6
    Banned User
    Join Date
    Jun 2010
    Location
    Milwaukee WI
    Posts
    16,708
    +1
    1,324
    Quote Originally Posted by nmpeter View Post
    modifying the emissions systems is illegal. Not that the epa will beat your door down, BUT...if you find yourself in the spotlight for whatever reason, it can get really expensive.

    25 thousand bucks expensive

    btw, removing catalytic converters is considered tampering

    as I've said often, cheapest performance upgrade available is losing 25 pounds good for you life too!

    most two strokes can be sqeezed for a bit more power, but at a cost of engine life

    one possible approach on an injected ski is to replace the air temp sensor with a resistor that spoofs the engine into thinking the intake air is of a lower temp,which might provide more power, but again, it.s tampering, with small gains at large risks.

    lose the weight. I do not suggest modifications except for dedicated race ski.
    Would removing the whole engine and replacing it with something else be considered tampering with emissions systems?

  7. #7
    PWC Addict lilman573's Avatar
    Join Date
    Feb 2010
    Location
    Central NJ
    Posts
    2,946
    +1
    207
    Quote Originally Posted by BryanP View Post
    Quote Originally Posted by nmpeter View Post
    modifying the emissions systems is illegal. Not that the epa will beat your door down, BUT...if you find yourself in the spotlight for whatever reason, it can get really expensive.

    25 thousand bucks expensive

    btw, removing catalytic converters is considered tampering

    as I've said often, cheapest performance upgrade available is losing 25 pounds good for you life too!

    most two strokes can be sqeezed for a bit more power, but at a cost of engine life

    one possible approach on an injected ski is to replace the air temp sensor with a resistor that spoofs the engine into thinking the intake air is of a lower temp,which might provide more power, but again, it.s tampering, with small gains at large risks.

    lose the weight. I do not suggest modifications except for dedicated race ski.
    Would removing the whole engine and replacing it with something else be considered tampering with emissions systems?
    I left that sticker on. Does that count?

  8. #8
    This is how I run a jetski shop in the desert nmpeter's Avatar
    Join Date
    May 2008
    Location
    Elephant Butte New Mexico
    Posts
    6,523
    +1
    1,270
    Quote Originally Posted by BryanP View Post
    Quote Originally Posted by nmpeter View Post
    modifying the emissions systems is illegal. Not that the epa will beat your door down, BUT...if you find yourself in the spotlight for whatever reason, it can get really expensive.

    25 thousand bucks expensive

    btw, removing catalytic converters is considered tampering

    as I've said often, cheapest performance upgrade available is losing 25 pounds good for you life too!

    most two strokes can be sqeezed for a bit more power, but at a cost of engine life
    .
    Would removing the whole engine and replacing it with something else be considered tampering with emissions systems?
    its safe to assume that if the engine has it's controls in place (carb anti-tamper) as an example you would be good to go.

    it takes quite an asshat to get popped for an emission tamper.

    back in the day when I was involved in euro car conversions the epa folks were just slightly less arrogant then the dot inspectors. We did produce proof that the cats we used were for similar us sold cars. They didn't go that far to test the metal we used to beef up the doors buy every single number on lights and glass were recorded. Speedos were tested for accuracy.

    i,d be most cautious on lake meade and powell, where trying to slip a banned two stroke on the lake might end with an impound, and if that ski was tampered, it could be used as an example.

  9. #9
    Resident electronics hacker UnityRacing's Avatar
    Join Date
    May 2007
    Location
    Va Beach, VA
    Posts
    1,425
    +1
    28
    They can ban a 2 stroke??
    That must suck.

  10. #10
    This is how I run a jetski shop in the desert nmpeter's Avatar
    Join Date
    May 2008
    Location
    Elephant Butte New Mexico
    Posts
    6,523
    +1
    1,270
    Quote Originally Posted by UnityRacing View Post
    They can ban a 2 stroke??
    That must suck.
    they do have a ban on most two smokes. Direct injected Ficht and Orbital seadoos are ok.

    No rfi's
    Last edited by K447; 12-30-2014 at 11:49 PM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question for those with Piggy Back Fuel Controller
    By 1 FAST VE in forum 4-Tec Performance
    Replies: 9
    Last Post: 03-19-2006, 08:48 PM
  2. Control Speed
    By wakeborder556 in forum 4-Tec Performance
    Replies: 14
    Last Post: 02-07-2006, 04:04 AM
  3. Cruise Control
    By WildBill9000 in forum Sea Doo Open Discussion
    Replies: 0
    Last Post: 09-17-2005, 07:48 PM
  4. loosing control with RXP
    By mrracing in forum 4-Tec Performance
    Replies: 4
    Last Post: 09-17-2005, 12:26 AM
  5. My new piggyback fuel controller with bigger injectors
    By Green Hulk in forum 4-Tec Performance
    Replies: 18
    Last Post: 06-17-2005, 02:21 PM

Posting Permissions

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