Hey,
I have a question…
My plan is it to buy a second engine to make a 65cc setup. Could someone tell me what speed I could reach with the following setup (the base is a moped engine):
Malossi air filter
13mm inlet
Bigger inlet window
65cc dr evo
13/13 dellorto
70mm pulley
Supercity replica exhaust 25mm
Modifying the crankcase so that the ports…[Lees meer]

It would be nice if I could get as close to 70 as possible

or is there something i can do to the cylinder before I install it?

Nice!
Is there a way how I could get a bit more top speed with the dr cylinder without taking the engine completely apart. Like maybe lifting it by 1mm? I want to do the complete engine porting in the next winter so it would be nice if I could get a bit more top speed till then.

I have one last question. What do you thing would be the power and speed increase if I put a dr evo 65cc on my moped like it is now? And how much increase would I get with the dr, if I make the inlet to 13mm, the inlet window bigger, boostports and the main ports bigger?

Okay thank!

It would be nice if someone could make a little check list with things you should do when it comes to stock engine tuning and the effects of each modification.

Oh, now I understand you mean the inlet and exhaust port, right?
Should I do something with the exhaust port?

Okay thanks, but what exactly do you mean with ports? Do you maybe have a picture?

Do you know a post where someone properly explains how to make the ports bigger?

Okay,thanks for the tip 

But what effect would it have if I raise the cylinder and lower the cylinder head, so that everything is correct.

I think it’s still impressive that the moped drives 58kmh on a flat road.

Okay, thank you!
What do you think about raising the cylinder? Is it an effective way to make the moped faster, or what does it do?

Oh sorry, with my auto google translater it looked like you have written in german. So I wanted to say that I think it is a original cylinder because the piaggio branding is on it. I have also heard that the moped version has slight engine modifications like a inlet with 11.7mm. I was also pretty impressed!

Ich denke dass der zylinder original ist, es ist aufjedenfall das piaggio Zeichen drauf. Außerdem ist soweit ich weiß bei der moped version der motor schon leicht bearbeitet z.b einlass auf 11.7mm. Für mich war es auch ziemlich unerwartet das ich mit den paar Modifikation 63kmh bergab gefahren bin.