problem needs solving

[shnebo]

alright, i have an rc18t that i have installed the exotec mid motor mount set up and it requires me to run a saddle pack, but im just going to run small lipos in parallel which is what a saddle pack is. so i went to one of my lhs and bought four turnigy nano-tech 2s 370mah 25-40c packs. i can fit two on each side and im running all four in parallel so it adds up to 1480mah. however after i charged the packs i noticed i needed some Velcro to run 2 on each side and i was so eager to finally run it that i put just one on each side. so i then went out side and began to drive it. and right away i noticed that if i get on the throttle hard or like really punch it it like stutters badly and sort of cogs, but if i gradually get on the throtle it works fine and i can go full throttle. and i am running the mamba micro pro esc with a 4200kv motor. im guessing the problem has to do with amp draw of the motor being to much for the batteries? but idk. i dont think gearing could be the problem.

does anyone have suggestions for my problem?

[batman]

i take it that it did not cog/stutter with this esc/motor combo before.
check motor wires sometimes the bullet connectors get dirty clean both sides with alcohol
also try re-calibrating TX to ESC

[shnebo]

yeah well it cogged a little bit like at low throttle input which is normal but i coul always go full throttle no problem, i calibrated it right before that run so that if out of the question.

ill check the wires. thanks.

anyone else?

[batman]

try strapping the regular battery you would run on top plate and see if it still stutters then you would know if its the batteries

[shnebo]

ahh. how did i not think of that haha.

[shnebo]

i strapped on my gens ace 2s 5000mah 40c pack and it did the same thing. so that is good and bad. bad bc i dont know what the problem is but good bc the batteries can still be used.

any ideas?

[shnebo]

YESSS!!!! I figured it out. my castle motor was the problem. i swapped it out with my reedy motor and it works great.