166
Habada
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oh would you!?
here you are:
Lähetetty minun Nexus 9 laitteesta Tapatalkilla
マキタ チェーンソーの素晴らしいビデオ
oh would you!?
here you are:
Lähetetty minun Nexus 9 laitteesta Tapatalkilla
Im chuckling to myself a bit here .....The amount of interest in a 35cc saw compared to the usual bigger cc saws . Who would have thought itGosh I'd like one...
I worked my way, second by second, through the video to try and figure out how they consider this to be a 'strato' configuration. The video left me with even more questions.
Apparently, they have decided to dump the fresh air charge at the bottom of the crankcase (the opposite to what we are used to) so that the intake charge coming in from the carb can 'somehow' push the fresh air ahead of it into the cylinder. I'd need some time with this cylinder to get a feel for what is really going on.
Here are some observations that I think will be important for modding. If you look at the picture of the carb and the strato butterfly, it is clear that the carb is a LOT SMALLER than the strato butterfly. The carb appears to have a venturi that is less than 50% the area of the strato opening.
That's good, we can use that. Then we come to the first set of reeds and they are very good size, probably have even more area than the 6100 has.
But then we come to a SECOND set of reeds (WTF?) Why would they put a second set of reeds in series with another set of reeds. There must be more to this reed configuration, like separate conduits to the forward or back transfers, otherwise the second set of reeds would just be adding a restriction to the flow.
I'm waiting for a build thread on this saw where all the questions about internal flow have been resolved. Then we can start figuring out how to make that flow even larger.
Just so as i can understand where you are with this Terry.I worked my way, second by second, through the video to try and figure out how they consider this to be a 'strato' configuration. The video left me with even more questions.
Apparently, they have decided to dump the fresh air charge at the bottom of the crankcase (the opposite to what we are used to) so that the intake charge coming in from the carb can 'somehow' push the fresh air ahead of it into the cylinder. I'd need some time with this cylinder to get a feel for what is really going on.
Here are some observations that I think will be important for modding. If you look at the picture of the carb and the strato butterfly, it is clear that the carb is a LOT SMALLER than the strato butterfly. The carb appears to have a venturi that is less than 50% the area of the strato opening.
That's good, we can use that. Then we come to the first set of reeds and they are very good size, probably have even more area than the 6100 has.
But then we come to a SECOND set of reeds (WTF?) Why would they put a second set of reeds in series with another set of reeds. There must be more to this reed configuration, like separate conduits to the forward or back transfers, otherwise the second set of reeds would just be adding a restriction to the flow.
I'm waiting for a build thread on this saw where all the questions about internal flow have been resolved. Then we can start figuring out how to make that flow even larger.
Just couldn't stick with "Sensible" cc saws i see Andrew .....
...lets just call it ..."Extra interest" then ...i put it in the wrong thread simon typical but I do like watching his videos and good for you too see this 7910
Its the design not the size that has people interested. At least thats the way i see it.Im chuckling to myself a bit here .....The amount of interest in a 35cc saw compared to the usual bigger cc saws . Who would have thought it
Yea... it wasn't meant as a dig at anyone. Im just used to reading a lot of enthusiastic threads on the mid to upper end of the cc classes rather than the smaller saws.Its the design not the size that has people interested. At least thats the way i see it.
Its not often that we get to see something new in the chainsaw world, usually its just small design changes, porting changes, assembly changes that come with new saws....saws from the today are virtually unchanged in basic design from the 80's other than strato and autotune. Not true for this, Makita/Dolmar threw the book in the trash and came up with something that resembles absolutely nothing we have seen before, and it seems to work well. The question is, will this same system be used on bigger saws....say a 50cc....or bigger?
Its the design not the size that has people interested. At least thats the way i see it.
Oh reed port engines can and will spit back tooI like the idea of capturing what is took in without all the spitback
Only reeds Ive ever fooled with were on a Mercury 225 where I leveled the reed cages and installed Boysen 2 stage reeds. Made a noticeable difference in idling and holeshotOh reed port engines can and will spit back too