I extended a3mm long and I tested it in my bath, It seems OK! so Happy, Thank you for your advise....
I will go & try this week!
If u use plastic tube to extend it. I'm worry when the motor full power,the tube will bend woo..
I suggust use a large size of copper tube and use yr way to plug-in will much better!!!
I tested this Sat. U r right again, when full power the water output is less (slower is better), I will change the copper tube instead. (What size?)
By the way, The speed is getting slower after 3 ...
For the copper tube, its depends on your boat. Just buy one the inner dia. can plug-in is okay.
For my boat's water inlet point dia. is 5mm.
I don't know the problem about the electronic, coz I just play GP boat. Sorry!!!!
But I'll hv a EP boat will a assembly later, I also want to know yr problem too...