6s in an hyper 8.5 pro ?

[bdebde]

Those are some big packs for a buggy, I might try something a bit smaller.

[speedy]

maybe 5000mah pack's then ?

[bdebde]

Originally Posted by speedy

maybe 5000mah pack's then ?

That may be more doable, and should still give long run times (probably well over 30 min). Take a look at BrianG's hyper, it uses two 2s packs I believe, that may give ya some idea of how much room you will have.