Runtime

[Jason]

ok .. so a 3500kv motor on 3s 11.1v give more runtime then a 3500kv on 2s 7.4v geared for the same speed ?

[Mozzy]

Originally Posted by Jason

ok .. so a 3500kv motor on 3s 11.1v give more runtime then a 3500kv on 2s 7.4v geared for the same speed ?

You're also forgetting one important factor in this equation, the battery capacity.

We all know 2 & 3s is 7.4 & 11.1v respectively, but, are you just changing kv & gearing to keep at your 40mph to determine if your runtime will remain the same?

As Neil said, get a stop watch. Don't take anyone's word for it as we all use different packs, motors & gearing & they all perform differently.

Do the testing yourself & then you will know.

I've done my testing to get my cars to where they are. Yeah, it may have cost me money to buy the motors, but, I just sold what I didn't want & got a decent price for them.

I learnt a lot doing it too.

Good luck what ever path you choose.

[Jason]

whats give me more runtime in :

lower tooth spur gear and lower pinion

or

higher tooth spur gear and higher pinion


geared for the same speed ..