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  1. 0

    A MS440 ported from the factory???

    Yes, raise on all husky dual transfers. If building a racing saw go higher. One time and you will like it. Ask Brad if you can trust me. 066 stihl
  2. 0

    A MS440 ported from the factory???

    Fred was at a show in MO that I was at. 066 stihl
  3. 0

    A MS440 ported from the factory???

    I think the saw was 361 stihl and was being build in AL. 066 Stihl
  4. 0

    A MS440 ported from the factory???

    See how better the fuel and air can get up the transfers? 066 stihl
  5. 0

    A MS440 ported from the factory???

    Yes, a windowed 2083 Jonsered piston 54mm. I think the non window piston run better. That's a timber saw. 066 stihl
  6. 0

    A MS440 ported from the factory???

    On burning to must fuel set the ex. 165 and the intake at 160. 066 stihl
  7. 0

    A MS440 ported from the factory???

    You get what you pay for.........They are cheap, for a logger making big money. Yes, it cost to port saws. 066 stihl
  8. 0

    A MS440 ported from the factory???

    Every use C.C. Specialty for porting tools? Be sure to try, the rubber abrasives bullets, they work good. 066 stihl
  9. 0

    A MS440 ported from the factory???

    Some coils just make a saw run better. I guess, a hotter spark. Try 4 or 5 coils on the same saw. When racing saws, you look at everything, trying to get faster. 066 stihl
  10. 0

    A MS440 ported from the factory???

    Hey, Art Martin still living? 066 stihl
  11. 0

    A MS440 ported from the factory???

    Hey Dennis Still racing saws? I see you still like to play on AS........ I quit racing a few years ago. Hey, what about your side kick, he still racing and building chains? 066 stihl
  12. 0

    A MS440 ported from the factory???

    The 066 transfers are not the same as a husky. I think the key way about .060 are so. 066 stihl
  13. 0

    A MS440 ported from the factory???

    Try one with the 2083 piston? 066 stihl
  14. 0

    A MS440 ported from the factory???

    Well , the 2171 with a 54mm piston will cut and top 4 good trees. A stock 2171 will cut and top6 tree's. A good running saw, makes the job more fun. If you run one a day you want go back to stock. 066 stihl
  15. 0

    A MS440 ported from the factory???

    On a work saw you want the rpm's at 14,000 to 15,500 with alot of fuel. The 031 was not a work saw, it was a racing saw. Yes, it would turn 19,000 or so. But, it had booster port cut in it. Had a homemade head on it, a cut down flywheel on it. 066 carb and intake boot. Build to run...
  16. 0

    A MS440 ported from the factory???

    You live in Tn want to come by with your degree wheel and check my timber saws?:msp_scared: 066 stihl
  17. 0

    A MS440 ported from the factory???

    On cutting the bottom of the jug. Yes, you do chance the port timing on the motor. If you cut .025 off. You lower the ex. and transfers .025, you hurt it if you don't raise it back up. By lowing the intake you help it by .025. 066 stihl
  18. 0

    A MS440 ported from the factory???

    If you run a high ex. port timing you get more rpm's. But, you kill the compression. You need to run a dome piston to help on the compression. The 056 super piston at 184 on the ex. and you will have over 200 psi. It will run............... I have builded one the way. 066 stihl
  19. 0

    A MS440 ported from the factory???

    On a stock 066 the ex. at around 160 and the intake at 158-160. The higher ex. port timing the lower the compression That's the key, don't kill the compression. On the intake 180 to 184 all you can do. 066 stihl
  20. 0

    A MS440 ported from the factory???

    Work saw number................... They will run all day with them numbers. If you run 4 oz. of oil to a gal. of gas. Don't you build saws? 066 stihl
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