Originally Posted by JJ1984
Since nobody else is picking this up, here is my take.
There are a few mods in links from the first post in this thread, but not many drop-in upgrades. the only major ones I can think of are
1) Carbon Fibre mainshaft + fisheye swashplate, if it's not already fitted by default
2) Delrin main gear (maybe try miracle mart) is mechanically tougher but I'm not aware of any serious weakness in the stock part.
3) Bravo SX motor is a drop-in, apparently
The links/blades will depend on the head you have installed.
I think there's a limited amount of useful tinkering to be done with the v911, of dubious value if you're looking to increase performance with only drop-in upgrades.
Other helis are better suited.