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added a pipe to lil china

Discussion in 'Sub-forum for these Rice Burner 660 builds' started by Ttxpc, Jun 17, 2018.

  1. Ttxpc

    Ttxpc Well-Known OPE Member

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    fabbed up a pipe for the 660, tuned to 10k with the current porting, picked up a bunch:banana:
     
    Last edited: Jun 19, 2018
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  2. Ttxpc

    Ttxpc Well-Known OPE Member

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    Pic
     

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  3. Wagnerwerks

    Wagnerwerks I have yet to "suffer" from CAD

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    Videos!!!!!
     
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  4. Ttxpc

    Ttxpc Well-Known OPE Member

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    Not sure how, sire filesize is very limited, no photo bucket account
     
  5. cus_deluxe

    cus_deluxe ONE OF THE WORST!!

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    upload to youtube and just post the link
     
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  6. Ttxpc

    Ttxpc Well-Known OPE Member

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  7. smokey7

    smokey7 Pinnacle OPE Member

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    Sounded like it held revs pretty nice.
     
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  8. Ttxpc

    Ttxpc Well-Known OPE Member

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    Plan is to keep it as a work saw, just more power in that rpm range, exh dur is short, pipe calc'd at 10k, haven't tached it in the cut, but definitely more power and holding more rpm.
    Pulls the 404 full chisel harder than the 3/8 semi I had on there on muffler.
    Love my bikes, feels just like a 2 stroke bike to use (engine wise) snappy, can feel it get 'on the pipe'
     
    Last edited: Jun 19, 2018
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  9. Ttxpc

    Ttxpc Well-Known OPE Member

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    Edited posts, went back over notes is tuned to 10k not 11
     
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  10. CR888

    CR888 Pinnacle OPE Member

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    Looks good. Putting that wood on its side & slicing 'cookies' would show off that saw nice. Many don't appreciate the density of our wood and for it to hold rpm through the cut is good.
     
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  11. Ttxpc

    Ttxpc Well-Known OPE Member

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    DSC_0298.JPG New tsumura sprocket bar, looking forward to getting in the wood Saturday
     
  12. smokey7

    smokey7 Pinnacle OPE Member

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    After zooming in on your pipe i have to wonder if you have made them before? It sure looks pretty professional. Very nice work do the felling dogs clear past the pipe and still functional? It didnt look like the pipe was in the way much so thats very good. Also do you notice your engine running any hotter now with the pipe added? Did your carb adjustments change much going from muffler to pipe?
     
  13. Ttxpc

    Ttxpc Well-Known OPE Member

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    DSC_0305.JPG Thankyou for the kind words, to be fair I've been a mechanic fabricator engines etc for a long time, first go at an expansion chamber pipe, not as pretty as some but it's functional, gave it a couple tanks tonight firewood sawing, it's really nice to use, heaps of go.

    It's almost (the pipe) unnoticeable, can dog into the wood, isn't as transparent as a muffler though.

    Carb adjustments were a little surprising, I had to remove a heap of idle fuel just to get it to idle, but the high speed tells the story. Added half a turn or so to get it nice, I think I'm out of jet to be true.

    Temp seems no issue, set it down after a long cut or consecutive cuts and all seems normal, we shall see

    Got some nice colour after some hard work tonight
     

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  14. Fruecrue

    Fruecrue I got wood

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    Can’t believe I missed this!
    Awesome job!
    Did you change port timing at all?
     
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  15. Ttxpc

    Ttxpc Well-Known OPE Member

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    Bridge ported the transfers only at this stage, leaned it out some now, really screams
    Here's a vid with it still very rich

    Pretty sure it's red box
     
    Last edited: Jul 2, 2018
  16. Ttxpc

    Ttxpc Well-Known OPE Member

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    Pulled the jug and did some much needed port work
     
  17. smokey7

    smokey7 Pinnacle OPE Member

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    Wow that thing is rippin. What did you do to it?
     
  18. Ttxpc

    Ttxpc Well-Known OPE Member

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    Fair bit in the exhaust, needs a lot more, but piston skirt width is an issue, Inlet tract is a bit small too...
     
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  19. bottlefed

    bottlefed Well-Known OPE Member

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    Sounds Awful....


    Happy!

    Congrats on a job well done!
     
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  20. smokey7

    smokey7 Pinnacle OPE Member

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    You guys are much more brave turning these china cranks thiat fast. They must be fairly in phase and true or we would see many more failures. Nice work and it seems you got plenty of gain from the saw. Are you still running a farmertec jug and piston or something else stock size 54mm or 56bb?
     
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