Spider V4 vs 2x2 MOSFET?
 

Well, here I am wondering about the V4 and MOSFET. Just need some questions answered.

2. What has better run times with hot motors?
3. Which has more resistance?

5. Pros, cons?
6. Better overall with the following setup?
Li-ions w/deans
Hs-55 servo
tight turns
33t carbon brushes, neo mags. Cant remember what else.


No "V4 is soooooooooo much better!!!!" or "dont pick the V4, because it sucks" and no stupid posts :D Thanks!!

ummm i dont understand much on fets but i do know that the spider is an external FET stack. For example, instead of removing the stock fets and placing a 2x2 stack, you could install a V2.2, Spider V4, Nelly, etc as external stacks. What these are, are basically an external board where the space to stack a greater amount of fets has been given. If you read on XI under the specs for the V4, it'll say it out performs some stack amount. It's basically that equivilent, i think like 8x2 or whatever stack. This basically means if you had a 8x2 stack its the same as just having hte spider. Just like the V2.2 you can handle a great amount of Voltage throught the board, i think 12 Volts or so on the V4 and AM says 14 or so on the V2.2... basically the V4 can handle a 3S2P lith pack... hope that helps

even with a 2x2 stack, you risk blowing your fets with a high current motor. looking at the v4, it seems to be a voltage regulated board (like the V2), it says on XIs website that this outperforms an 8x2 stack, which is pretty impressive (they also say you can run 12 volts on it) the V4 is obviously a waaay better investment than a 2x2 stack imo.

Thanks, pretty much just answered #1 and 4. Just need to know a little bit more and I should be on my way to a $400 Xmod :D

Dontspamme, the spider v4 is equivalent to a 2x8 stack of MOSFETs on the datasheets, which means little in the real world of the modding.
Techincally speaking, the spider v4.0 is about equivalent to a 2x4 stack of FETs, the only thing that came close/surpassed a 2x8 with load was the Nelly Deluxe/ Stacked Nelly.
A 2x2 will be fine for what you're doing, I can add an extra 2x1 if I feel it is necessary, but a 2x2 would be fine, if you don't feel comfortable I can bump up a few winds to make it around 36t, trust me, the speed will be there.
You don't want too much speed, but torque is key(with a 26t motor on li-ions it'll do well, while having more torque than the 33T).
PM me on the other forum about this.(if you want)