I’ve been messing around with engines since I was a teenager, fifty years ago. What you’re saying here makes great sense to me because I’ve come to the conclusion that intake and exhaust tuning works in a similar way to a musical instrument like a trombone. There’s one length of tubing that plays the right note but that perfect length depends on the individual instrument.
I don't think you know much about what you are doing. Your flow test is bogus for one thing. What flow bench is that? It looks like a home made vacuum cleaner thing. IF that pressure in inches of water then 4.25=8175FPM 4.46=8375FPM You can't compare the two. In order to flow that amount (360cfm)the diameters of the stacks must be 2.8"-2.875" in diameter I doubt they are that big from the video. You state it is about 44mm-46mm= 1.73"-1.81" .It is impossible to flow 360cfm@4.5" at that size. It will flow ~ 62CFM. Something is seriously wrong with your flow testing. That casts doubt on all your info. Unless you can clarify this I call BS and this is all snake oil sales.
@@johnnyappleseedz422 They are just pipes that you use to adjust the length of the intake with a smooth entrance to flow without turbulence. They work but not how he says they do here. No way there is a huge difference either. They just move the power around a bit.
@@billshiff2060is it good that the air that is going to the system does not have turbulence? I taught turbulence on akr while entering the carb or throthle body is needer rather than a smooth flow of air
Interesting that you guys went with dimples. I had the same idea until someone smarter than me told me they increase resistance to flow in a pipe.
I’ve been messing around with engines since I was a teenager, fifty years ago. What you’re saying here makes great sense to me because I’ve come to the conclusion that intake and exhaust tuning works in a similar way to a musical instrument like a trombone. There’s one length of tubing that plays the right note but that perfect length depends on the individual instrument.
What really matters is the area under the curve 👍👍👍
Thanks Ryan!
I can personally vouch for these products I have a stack on my 2019 crf450 works edition and on my snowbike it made a noticeable difference
My bike is stock (2023 Beta 430 RE), if I buy this stack without anymore mods, would I gain even power by calibrating the ECU too?
Lloyds performance out it Idaho is making some 75 hp bikes right now
I don't think you know much about what you are doing. Your flow test is bogus for one thing. What flow bench is that? It looks like a home made vacuum cleaner thing. IF that pressure in inches of water then
4.25=8175FPM
4.46=8375FPM
You can't compare the two. In order to flow that amount (360cfm)the diameters of the stacks must be 2.8"-2.875" in diameter I doubt they are that big from the video. You state it is about 44mm-46mm= 1.73"-1.81" .It is impossible to flow 360cfm@4.5" at that size. It will flow ~ 62CFM. Something is seriously wrong with your flow testing. That casts doubt on all your info. Unless you can clarify this I call BS and this is all snake oil sales.
So, do velocity stacks work or not? 😂
@@johnnyappleseedz422 They are just pipes that you use to adjust the length of the intake with a smooth entrance to flow without turbulence. They work but not how he says they do here. No way there is a huge difference either. They just move the power around a bit.
@@billshiff2060is it good that the air that is going to the system does not have turbulence? I taught turbulence on akr while entering the carb or throthle body is needer rather than a smooth flow of air
@@joshuayumul24 No, turbulence at the entrance causes flow loss.