Two Stroke 3,5 HP to 28 HP in 7 minutes

I build this Simson engine for the tunerbattle. Some freaks meet at the dyno and show their skills.

[fpvflightfootage]

I can’t believe you did all this in 7 minutes. Unbelievable

[danlaporta]

Butterfly in middle of expansion = awesome solution. Thanks

[jmrides]

3.5hp to 28hp in 7 minutes for professionals. 3.5hp to 28hp in 7 years for the average Joe!

[AEY-Centinal]

Herr Schäfer Kompliment.
Für mich sind Sie eine Ikone und habe mega Bock auf 2 Takter. Fahre seit ich klein bin Moped Simson egal welche Hauptsache. Habe es nun soweit getrieben das ich Hobbymäßig 2 Taktrennen mitfahre. Classic TT's usw. Honda NSR125 Motor. Durch hier und da können da auch gern über 30 Ps rausspringen. Deine Videos sind geil mach weiter so.

[hotrodZack]

Gas welding, that’s something you dont see much of nowadays.

[AlteredCarbons]

cool video man, love seeing these 2 stokes working so hard. also glad to see it wasn't a click bait title. "easily make 28 hp!" then show what you had to do lol. then you see a lathe and mill even from harbor freight thats out of reach for most

[nilstr]

Guter Zusammenschnitt! Ich mag dein Schnittstil 👍

[extec]

twostrokestuffing should see this engine.

[milankralowetz]

Hallo Leute. Alles klar soweit?
Schöner Zusammenschnitt.. Einfach herrlich zu Sehn was mit Plan und geilem Werkzeug möglich ist!
Handwerklich 1A 👍
Grüße aus'm Saarland

[MichaelForrestChnl]

the pipes butterfly valve causes the return stuffing wave to return earlier for reving higher, more than it would normally be able to allow. But that early wave causes the positive return wave to overlap the negative wave which cancels them out where they overlap which is bad for intake.

[tribalbc]

Wow you have some tools and some skills there 👍

[schnuffischulz]

Mir war vorher gar nicht bewusst wie man die Bandbreite mit der Drosselklappe beeinflussen kann. Geiler Scheiss. Gerne mehr davon 🤘

[diggy-dw]

What are these, "Simpson" like something we can buy to build ? I subb'd b/c of how impressive this was and
to at least figure out WTF it's all about? I'd love to craft a small motor for a bicycle & this is where I'm starting. peace

[stwayne]

And--viola! Just like that you have increased the motor's output by a factor of nine times! Most of which, I have no idea what he was doing. Back in the 70's I raced a Suzuki 90 with a 100cc "Git Kit" that it took it from a stock 8 HP, to 14 something. Can't imagine what I would have done with 126 HP!

[alcord]

It might be a 7minute video but many hours of skilled work went into this.

[dhavidlee]

If y'all see now and want to upgrade your 2 stroke but limited budget i suggest first carbs and chamber exhaust, hope it's help too

[TheHypnotstCollector]

minute 3:53, the main jet is a sewer pipe. Looks like one of the four main jets in a Holly DP on my 350Chevy. It's 5700cc revs to 8000rpm. It's about 115 Times Larger ...but this 50cc mini monster uses a main jet like a 5700cc engine

[congerthomas]

Cool, straight gas with moth balls works too!!

[jmt]

Very nice work! Which cilinder brand is this?

[MaxStammberger]

Hi, ich habe mir letztens einen 50er Sport bei euch gekaut und ihn dann bei einen freund eingebaut. Danach bin ich wieder nach hause gefahren(ca. 5km und danach nicht mehr), und mir ist eingefallen das ich den Zylinder nicht nach rechts gedreht. meine frage wäre jetzt ob ich ihn noch nach rechts drehen kann oder es lieber lassen soll.
PS wieder mal ein cooles Video. weiter so