I thought dimples were always indentations? Nevertheless I don't really know, just to cause some turbulence to atomized fuel better. I certainly haven't see it help power any. The boot being so short I can't see it doing much IMHO, and dimpling seems to mostly help spherical objects. [emoji111]
Its probably to break up the boundary layer of air along the intake walls, I'd hazard a guess you want turbulent (not laminar) flow in an intake tract for thorough atomization and proper mixing and if you get rid of the boundary layer you could gain some efficiency that might otherwise be lost to friction.
Was thinking that as well.[emoji106]
Mechanical engineer, with an interest in fluid mechanics.....
Would the so called dimple intake be there just to keep the gas from falling out and make it more responsive or could the dimples produce a performance increase? Like a bit more horsepower and RPM.
[emoji106] figured something of that nature.
I believe this Japanese figured all that out. And I agree I have not seen any difference in performance with the smooth boot or the ones Stihl uses.
@ShoerFast This guy knows why Stihl did it something about better acceleration from idle IDK exactly. Shoe?
Yes, as mentioned. Dimples / texture keeps fuel from puddling. Cold idle the fuel tends to want to fall out of the stream, dimples / texture encourages the fuel to stay with the stream.
Thanks for all the information. Learning a ton of things on here. I’ve had an account for several years but now I feel I want to learn much more than just the operating a saw and the routine maintenance.
No problem! But I need to figure out what model I want yet
Your Porsche reminded me of an old 88 f-150 my uncle had. Had some great motor work and 30 years later we could see the road through the rusted out floorboards
The fun part is the chainsaw! It’s all the work of splitting and stacking that takes all the time.
So it's not the 361?Thanks for all the information. Learning a ton of things on here. I’ve had an account for several years but now I feel I want to learn much more than just the operating a saw and the routine maintenance.
No problem! But I need to figure out what model I want yet
Your Porsche reminded me of an old 88 f-150 my uncle had. Had some great motor work and 30 years later we could see the road through the rusted out floorboards
The fun part is the chainsaw! It’s all the work of splitting and stacking that takes all the time.
Looking at the 461
No need for that 660 then unless you're cutting big wood....I may know of someone that would take it off your handsLooking at the 461
Everyone starts out as a newb. Someone asking a question from pros who have experience is a great way to gain insight and knowledge. I've owned saws for 20 years and have never had one fail me yet. I agree that maintenance is vital to all equipment. I just happened to operate a ported 361 that a friend of my cousin brought when we were removing some fallen oak trees in the pasture after a windstorm came through. The torque and throttle response blew me away, so was thinking about having port work done to one of mine.
