Baddest mofo on 2 wheels, beat ya 69 times outa 10. packin dip twistin grips shiftin gears passin queers mixin gas... well you know the rest. Thats all there is to say.
Dope bro, and looks tidy as. Do you get hella port noise from an opening like? Or is that strategic/calculated design? I don’t know shit bout insane sized setups lol
Thanks man, it’s still a pretty ugly work in progress in the daylight. But it’s definitely getting there. The 16” aero port gives me a very low port velocity. This keeps the subs efficient, and lowers port noise. Though if you wanted a windier setup you could go quite a bit smaller without running into a noticeable amount of port compression.
Totally agree with you. I’ve had very mild tinnitus since I was young, being around guitar amps, drums, pa equipment, etc. I do wear hearing protection when listening for extended periods of time. The 20-30hz range definitely can cause damage at 150+Db but it does take a much longer exposure.
@@RonnieMacJr69 Thanks for reply....I've seen several pictures online of rods with holes drilled in them. And seen several Harley engine builds with lightened con rods. So I think those cheap 2 stroke motorized bicycle engines come with a rod plenty strong enough for a couple oval shaped holes....The usually do 6500 max rpm stock. I'm only going up to 7500 or 8000 max rpm. I think the lighter rod along with a balanced crank would actually help prolong engine/bearing life since you have less reciprocating mass spinning at 7500rpm 🆚 having more weight spinning at 7500.
@@RonnieMacJr69Hey, did that connecting rod you drilled holes in survive? I have a small 2 stroke engine. I was hoping I could lighten the rod, when I port it & balance the crank.
You were chatting about other things and forgot to weigh the 14 gram pin after grinding ? It's a good idea unless there is not even a gram difference on the scales? And does balance factor make a difference on saw motors? Can you remove material around the piston skirts , without affecting any ports or transfers window operation? .4 grams is something I guess maybe ? Cheers
depends on the saw. Newer piston ported saws you can trim the skirt on the side because the transfers are closed ports. you can also change intake timing and velocity by trimming the skirt at the intake port. Older Reed valve/case intake reed valve saws usually have open transfers. trimming the skirt could cause lower transfer velocities, though I'm not sure by how much.
True but these old case reed saws already have much more torque then a modern piston ported saw in most cases. So its really just trading the extra torque for rpm
Did a similar job to a xl925 that turned very slow stock but would pull a large bar no problem. A little bit more blowdown and adding firngers of the transfers and case matching the transfers now it runs much faster and still pulls the larger bars I have. 25in & 36in
Nope, the only time you’ll experience any issues would be if you were messing with the o2 sensors up at the cats or if you didn’t get something tightened or hung right to make enough vibration to be picked up as a false knock but that would be difficult to mess up that bad
@@RonnieMacJr69 never knew you could with these so it’s gonna be a try. I have done videos on piston shaping and this will take it to another level. Thanks again sir.
Sounds good !!! I dig it. I’d get pulled daily round here cause that’s just how they are in this small town but I think ima just have to take a chance. 😂
hi, how can we know the max duration of ports ( exhaust / transfert ) ? is there any formula or trick to know because i could not find these informartion, thanks!
Bro I just watched Ronnie mac take a nasty crash tonight at the cassia County fair. 🌮Ed his front rim bad. I could tell he was in pain for sure bro. Heated to see that. I think he was short 6 or 9 beer's to pull off the kicker 🤔 I had a 12 pack for him but they wouldn't let me bring it on. Just sad 😥😞😢
Damn I swear he’s been getting a little ahead of himself lately ever since that foot injury probably a year or two ago now it seems he just can’t stop getting hurt
Surface tension is with water or fluids not air. Example is large commercial HVAC uses smooth sheet metal for ducting. Just asking for your opinion, I apologize if I sound like an ass. I’m a show me kind of guy.
You are correct from what I’ve always been told is that a slightly rough surface on the intake causes a small amount of tumbling air against the walls of the intake which in theory will act as a cushion and help the other layers of air that are not in contact with the walls of the intake maintain a higher velocity. All of this is very opinionated and there’s tons of videos out there of people saying you should polish and tons saying you should leave it textured. The reason I know this is just because that’s what my grandpa who built drag cars all his life told me he also claimed it could help the fuel and air mix which I could believe. No need to apologize I love to reply to everyone’s comments and give my thoughts. I’ve been very busy lately and this saw is actually finished I just haven’t had time to edit the videos yet. Perhaps I will make a video trying to illustrate the theory behind the texture to a greater extent soon.
Have you ever put the theory to test on leaving the intake rough as opposed to polished? I’m old school porting mostly 4 stroke, few dirt bikes (2 stroke), jet skis, always polished the intake. Logic based on moving the mix as fast and smooth as possible and let the crankcase take care of mixing/keeping fuel in suspension. Had a few difficult to ride bikes because of power. Now I’m hearing several suggest leaving intakes rough. I’m planning on porting a saw and testing both ways, don’t have a Dyno so it’ll be subjective, wondering if it’s already been tested in an accurate fashion. Been porting stuff since 1968 and still have the drive to make stuff faster, just a little heads up, it’s addictive! 😂
@@denniswilder3014 BS!!! An 1 1/2” distance! Why not rough up the smooth intake on saws that have them. I’m experimenting myself, I don’t accept something this illogical without testing myself.
