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  1. W

    61X Big Bore; LA Sleeve or Northwest Sleeve

    This is the difference with different engine builders Some people do some things different than other people I find lower exhaust takes away from the torque the motor produces
  2. W

    61X Big Bore; LA Sleeve or Northwest Sleeve

    I would never run my engines at 185, even for a free ride engine My experience tells me that your engine will not make the power you are after Some other engine builders will dis agree with me but each to there own Im not going to give out my actual specs I run but its more than that There is...
  3. W

    How many racers on the X?

    Raced pole skis for years 1996 kiwi champ ( 650 limited) once various titles in australia 2008 sport mod champ in aussie
  4. W

    61X Big Bore; LA Sleeve or Northwest Sleeve

    I guess the same as most freeride skis without total loss they would loose throttle response due to the lack of timing down low
  5. W

    61X Big Bore; LA Sleeve or Northwest Sleeve

    your right on there master blaster High exhaust does not always mean bad bottom end High exhaust with bad setup means bad bottom end
  6. W

    is this the max bore size ???

    Yes at 83mm they will go better than a stock 81mm bore but then your not putting in a big bore sleeve that gets into the transfer port volume with a 83mm bore I dont see the point in going for big bore sleeves when you start reducing transfer port volume I spend alot of time on my port jobs for...
  7. W

    is this the max bore size ???

    I dont like going over 83mm Have never seen a 83.5mm piston before , didnt know they were available in that size Why is everyone so hell bent on getting the biggest cc out of there engine, its not an efficient way to get more power People will sell you big bore engines etc because thats what...
  8. W

    61x cylinder to sleeve mismatch

    two stroke engines are two stroke engines , because he builds them for race boats etc doesnt mean he would have no idea for skis So the guy that you are talking about should be able to do a decent job Making a sleeve that drops the ports sown to match the cylinder mismatch is fine R&D used to...
  9. W

    Take a look at my cylinder/porting...does this look right?

    waxracing $300-350 as well
  10. W

    Take a look at my cylinder/porting...does this look right?

    It determined by the sleeve the mismatch in the casting just means the port flows really badly until it clears the alloy then its progress,s to just flowing crap
  11. W

    61x cylinder to sleeve mismatch

    Huh where did this come from I have found far different results
  12. W

    what is the best performing and lasting reed

    I never tried v-force reeds on a boysen reed block I think because the v-force don't bend as much to get the same air flow they are less likely to wear out I never had any issue with v-force twos at all well not true i did have a customer hydraulic a set but cant really do much about that
  13. W

    Take a look at my cylinder/porting...does this look right?

    You will make a lot more torque Its not just about timing its about airflow in a cylinder Also the flow from the cases into the cylinder is a critical area How much is it going to make difference well how much hp does a sport port make now Its not something you can actually put a figure on but...
  14. W

    what is the best performing and lasting reed

    I have used v-force II for three seasons before replacing reed petals and i just did that to insure i didnt get a breakage in the future I had a set of boysens i replaced the reeds twice on them in a season , they were lifting after a few sessions V-force may be made of plastic but its some damn...
  15. W

    Take a look at my cylinder/porting...does this look right?

    I do alot of port jobs for people , i dont need to run a sport port against another port job to know there will be a big gain They have there purpose, but dont think you are even close to proper port job by an experienced person
  16. W

    Take a look at my cylinder/porting...does this look right?

    Are you asking me or Matt-e
  17. W

    what is the best performing and lasting reed

    The approach angle on the reed cage is of benefit but since they are the same between the reed blocks its not really relevant We are talking reeds / reed blocks Im not saying that the v-force doesnt out flow the Boysens, if i had to bet on it i would say they do But im saying they sure as hell...
  18. W

    what is the best performing and lasting reed

    The cage angle on the v-force is smaller it has to be to allow two reed blocks to fit where they used to be one Im not talking about aproach angle to the cases im just talking about reeds only To put it another way how far does the reed have to open to achieve x amount of flow On a v-force...
  19. W

    what is the best performing and lasting reed

    Im actually building more free style engines than ever for people now Infact its all I do now When i am talking about the angle I am talking about the angle of the reeds on the stops Ie i think its about 25 degrees on the v-force to about 60-70 on a stock set of reeds The v-force will give you...
  20. W

    gold plated

    Use ceramic bearings they will not corrode
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