Supercharged 50cc Nitro Two Stroke - Downs fuel like 500cc! 

Man I have to admit that chain made me nervous when you suddenly started reaching at that new carb

Hey my ole friend I have run nitro in my Jr fuel dragster & in my racing karts. First let me ask you some questions. How what % of nitro are you trying to run? What oil are running? & what percent are you running. No one runs 100% nitro in a 2 stroke, so I hope you are not trying to do that. 25% is alot for a two stroke. Even in my dragster I kept it no more than 50% even though some guys ran more, they also blew up a lot of engines. Also you do not have to run over 20 to 1 oil mix. Remember your fuel to air mixture is under 7 to 1 with nitro & alky, so you are already getting plenty of oil at that mix. Just things to consider. Remember also mixing oil heavy fuel makes for heavy viscosity & screws up fuel flow & setting. Hope this helps.

7:21 A shoe on a tripod?!? WTF???

@2STROKE STUFFING use manual mode on the dyno instead of zero ramp rate in power sweep mode

I would introduce myself to Aalt Toersen. 😉 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-srb0U0gx01I.html

Been following since first video almost, yea that made me super happy, can't believe he didn't change to a bigger carb (or fuel injection) long before. He clearly knew, even i could tell it was actually running out of fuel. When i heard it run under load now, that was so damn exciting! I don't fully understand the dyno. I guess it depend on the pivot and how much load that sensor see? Then i should be pretty accurate if his measurements where right. 15hp crank is already impressive! Can't wait until he adds boost and timing!

@@Xfacehack Yeah, i think hes close to the point that efi will probably give him the adjustability and tuneability especially thru the wild flow profiles this engine will have. Again, carbs do work, but i suspect this engine will have a extremely wild fuel flow profile which might be very difficult to achieve a nice idle mixture all the way to WOT at redline with these types of carbs.. At least with efi he could have a dynamic flow chart/profile which will allow him to keep fuel flow efficient.. And yes, typically the load is measured around the pivot point which is typically the crankshaft planar point. I dont quite know how he is compensating for the offset pivot (torque moment) in his torque values especially since the engine is basically trying to "claw itself up the drive chain" with a offset pivot, in simplistic terms. It is calculable, but definitely makes the math more difficult. Regardless, what he has achieved is fantastic!

@@TheMoistpotato I couldn't agree more.. so awesome so far

Was gonna comment the same! A vortex there

Upvote when you did not notice that the first time. But dang, thats some top fuel dragster level of IPG (inches per gallon) over there...

Hehhe yeah man. That thing sure is thirsty! I bet u that a good tune will help ALOT. It seems so be ultra mega duper rich now. Can a broadband lamba be used to measure the live lean/rich balance?

or just dont use a clutch

😁 used to set focus

I would highly remicommend that!

At least some sort of bumper Alex. The amount of kinetic energy in the retarder is scary..

I first thought what would happen when the chain snaps. Not to mention this fixed gear setup is likely to eat fingers :p

Stop being soft. Motorbikes making 100+hp dont throw those exact chains unless they are super un maintained.

@@aptget1974 Anxiety is so disabling.

@@MrJermbob I was much more concerned about him getting his fingers caught in the chain and sprockets.

😁 awesome!

@@2STROKESTUFFING hey hvis du vil have 99.95% nitromethane I 25l så sig til. Og 99.95 % methanol. Det er meget bedre end rc nitro fuel hvor der også er alt for meget oli i, ellers god dag

I also suggested that in a comment on his last video...

@@Henning_S. it was easier been noticed when he had fewer subs haha commenting to help the comment

Definitely need to smooth vibration off the cell load, none digital electronics can read cell values correctly with that much vibration. It's nice to hear again pure sound off 10+K rpm. 👍

@@milankostic3717 Yourdyno software has a nice smoothing in the software for this type of action. Dont stress guys.

You dont want to dampen the information to the Yourdyno unit. The software has the ability to do that. When there is retardation happening and the engine is on throttle it wont be rough at all. Remember he is just using the dyno software all in fully manual simplified mode. This is not power runs yet.

Thanks man!

Just imagine what it will drink at 20,000rpm with wide open throttle.

yep - I had the same worry several times since work on the dyno started.

Yep.

It really helps when the teacher is talking about cool shit... If this guy was talking about algebra it would be terrible.

@@ianbuilds7712 True, but without algebra, geometry, and calculus, he would not have been able to simulate the system when he designed it. As an engineer, I had to learn a lot of really boring shit that was later very useful to design really cool shit.