Yep... thought most all 2-stroke tuners knew NOT to knife edge main/aux dividing wall leading edges. Air flow is anything but Laminar at that point, flowing in and across those knifed edges from several angles. This causes even more turbulence and terrible flow separation right at that edge. You want softly ROUNDED edges on those dividers to enhance flow directions coming from multiple different angles, which enhances air flow... not decrease flow as knifed edges always do. That cylinder is now totally FU'd UP. Best to start over...
Exactly what Eva Ork said... NEVER "knife edge" transfer port wall leading edges. Same exact reason why subsonic aircraft have round leading edges, and NEVER Knife edged. Look it up...
Oops, it's been awhile since I've seen this video. Maybe you guys should search a little more and find this port job in its completed form. These ports are rough cut. Not finished yet.
I have alot more to post, life has kept me busy. I will post more as soon as I can. Check out my new music playlist I put some videos of my band on there. P.S. i'm the drummer
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Now I gotta pull motors apart and make sure my boost ports aren't being blocked lol thanks for sharing this tip!
Jim is the best and very innovative
Do not knife edge ports in cylinder.... im out... pfffff
Yep... thought most all 2-stroke tuners knew NOT to knife edge main/aux dividing wall leading edges. Air flow is anything but Laminar at that point, flowing in and across those knifed edges from several angles. This causes even more turbulence and terrible flow separation right at that edge. You want softly ROUNDED edges on those dividers to enhance flow directions coming from multiple different angles, which enhances air flow... not decrease flow as knifed edges always do. That cylinder is now totally FU'd UP. Best to start over...
what?
Exactly what Eva Ork said... NEVER "knife edge" transfer port wall leading edges. Same exact reason why subsonic aircraft have round leading edges, and NEVER Knife edged. Look it up...
@@rustie61 Ok i'll get right on that.
Oops, it's been awhile since I've seen this video. Maybe you guys should search a little more and find this port job in its completed form. These ports are rough cut. Not finished yet.
Would love to see some new content from you 😊😊😊
I have alot more to post, life has kept me busy. I will post more as soon as I can. Check out my new music playlist I put some videos of my band on there. P.S. i'm the drummer
@@jimbennettsallnightgarage5586 nice. Looking forward to seeing more bike stuff. Especially the 465 and the BRC 500
Will that change the port timing at all
No, it adds size to the intake port.