lipo question

[Eodman]

How much of a drop in performance will I see if I run 3s rather than 4s in my twin drive toysport?(2 8xl's & hydra120's)

I ask because I'm looking at the no puff lipos and I want to order 2 2s packs to make a saddle pack, and the price difference between 3s & 4s would cover one of the 2s packs!

I promised my son if his grades improved he could build a Mean Machine with little or no help from me .... my wallet isn't in the agreement so he wants to do a "Jay Turner" Cat! So I'm trying to watch my mad money!

[ReddyWatts]

You will lose about 5 mph and be running under 20,000 loaded rpm with 3s. 27000 rpm loaded with 4s.

[Eodman]

Towards the end of last summer I picked up an older H&M Oliver series Mono with a 1515.5 Neu motor in it! The previous owner ran on a 2S2P saddle pack, so that's why I'm asking this question!

Perhaps I'll buy the 2S batteries & save up some more mad money to buy the 4S that I really want for the twin Toysport!