Hi gelay,</p>
Yes, it's nice to see other hungarians, not a common thing.

</p>
I was thinking about your setup. 4S lipo is 14.8V * 1800kv = 26640 RPM. Isn't this RPM a little low? I researched a lot, and found that I need around 35k RPM to make the boat run really fast. What do you think?
I'm still thinking wether to go for the XL KB's or stay with the L's. Or to choose a totally different motor

I'll wait till you test yours, since I'm only at the beginning of my building.</p>