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  1. Powaton

    0.250" compression height w/shim

    You had better deliver! :)
  2. Powaton

    Cylinder off to cv tech

    Does a crack like this cause a burn down or other running symptoms?
  3. Powaton

    Multi Pipe Days

    I need a technical/historical lesson to satisfy my curiosity. I'm browsing Craigslist for fun and see lots old triple triples. Got me thinking, multi pipe setups used to be the ticket to big HP, even on twins. Today we get all the power with single pipe setups. What changed? Pipe science and...
  4. Powaton

    0.250" compression height w/shim

    Cv tech...how much tighter and how much lighter?
  5. Powaton

    0.250" compression height w/shim

    With 4 strokes the game is to get squish as small as you dare. Independent of timing or any other variables. In some more extreme cases the piston will "kiss" the combustion chamber at max RPM. But the head gets a longer cool down period in a 4 stroke. The gain is from provoking maximum...
  6. Powaton

    0.250" compression height w/shim

    While on the topic of tolerances...What do you guys think about snowmobile squish clearance. Why do sleds still run so much squish clearance? U understand too much compression being an issue, but is there a problem with bringing squish below .030 and machining the dome to bring comp back? DTR...
  7. Powaton

    0.250" compression height w/shim

    What are the ways around the shim? Porting? Polaris tolerance on the loose side to hedge aginst bonehead hard cold running?
  8. Powaton

    Fogging

    So, power to the ecu, or power just the pump?
  9. Powaton

    Summer build BMP big bore

    Let us know how it works. Share the dyno results of you can!
  10. Powaton

    Cylinder off to cv tech

    Crack between finger port and main exhaust port?
  11. Powaton

    Summer Projects

    Hyperfax vs DuPont? What are your opinions?
  12. Powaton

    Summer Projects

    Meth addiction is great, for engines. I've been running methanol injection on my car for a couple years. That and mixing e85 with regular 93 to get about e25. Its cool to see intake air temps to stop 20 degrees below ambient when the spray starts. It's expensive, but pumps like this...
  13. Powaton

    Summer Projects

    More hassle, but meth injection should get you over the hump. Some ethanol in the tank can be a huge benefit too.
  14. Powaton

    Fogging

    Knowing generally where the ports are is the first step. Then with piston @ bottom dead center, stick the hose down in that General direction till you can feel it go in the hole. You'll know your in the hole because, a man just knows. You could also do it the airbox way. But some people have...
  15. Powaton

    Check TPS?

    The ride never ends!
  16. Powaton

    Check TPS?

    I did most of the recommended clutching and setup outlined by people like Brock, Doc and Racerdave. My sled was transformed faster and more fun than any other 800s I rode with this season. I have not checked the TPS yet. If the sled runs well, is fast and gets expected fuel economy, should I...
  17. Powaton

    What's everyone doing for next winter?

    1. Machine primary for overdrive and bslance 2. Helix and spring per Brock n' Doc 3. Dual rate front shock springs 4. Wash and wax
  18. Powaton

    Fogging

    I just fogged. I did it through the spark plug holes and into the transfer ports with a piece of tygon tubing. It didn't take too long.
  19. Powaton

    Clutch machining

  20. Powaton

    Gear recommendation for stock 12 sb 800 pro r

    1.74 is the choice for most conditions. Get your clutching and gearing in order and it's a different sled. I rode with 2011 cat 800, 2015 etec doo-dle 800 and a 15 axys 800. My axys made them feel like 600s from 0-80. Gear Clutch Alignment Make sure exhaust is sealed


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