Brushless Options

[DaveG28]

Hi all,

am looking to upgrade my 4wd buggy to brushless, after the second meeting in a row today where my brushed system desoldered itself from heat!

Basically, was wondering if people could advise me on:

Is the LRP Sphere comp. a good speedo option?

Is the Orion Vortex a good motor to go for?

Also, what "turn" brushless (4.5, 5.5 etc) would give me at least as much speed as my existing 8x1 brushed motor, and if possible better battery life too?

Cheers,

Dave