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View Full Version : motor for 4562 fetts?


lfisminiz
2007.05.18, 09:46 PM
What hotter than stock motor (x-speed type), can i run in my awd chassis with a single layer of 4562 fetts? Thanks.

rharris
2007.05.19, 11:11 PM
I used to run my Anima (33 winds) with a single stack. I run an Anima II on my AD band car. The AD is a 2x2 of 3010's. I've been kicking around the idea of upgrading the AD to 4562's but I'm waiting for the fet's to blow out. So far, so good.

It's all about current draw. If you are racing on a flat track and stay off the walls, a single stack of 4562's will usualy do the trick. You only need to go to a 2x2 of 4562's as insurance.

lfisminiz
2007.05.20, 09:24 PM
Thanks, anybody else?

Aurora
2007.05.21, 10:09 PM
IRC, when there is collision, the circuit might experience a spike of current. And to be on a safer side, I think the late Speedy AWD II(39 turns) by PN should be ok to run with a single layer of 4562, according to RC K-e-n-n-on.

Just thinking out loud--looking at the spec sheets, the upgrade from single layer of 3010 to a single layer of 4562 doesn't seems to give too much head room for current allowance, but making a short stack of 2x2 4562 will probably open doors to hotter motor(such as Speedy AD or AD stock, some even run Anima or T2 with that config). Certainly, sensitive driver might feel the slight delay in reaction time for the 2x2 4562 stack vs single layer of 3010, but hey, the gain in extra speed probably make it worth a while. ;)

Personally, I love the Xeric AWD by PN the best, but it does require min of 2x3 fet installation. Very linear and awesome top speed.

rharris
2007.05.21, 10:35 PM
I have a xeric in my Open class AWD. That motor rocks.

I run a 2x2 4562 in my awd with the xeric.

Check out the current chart here:

http://mini-z.home.att.net/mosfet.htm

a single stack of 4562's can handle 6amps. It would take a 2x3 stack of 3010's to to handle 6amps. it would take more then a 2x6 stack of 3004's to handle 6 amps. Remember the old atomic mods pics of xmods boards with huge 2x6 fet stacks? It looked cool, but you could never fit that in a Mini-z.

A 2x2 stack of 4562's can handle 8amps. It would take a 2x6 stack of 3010's to handle 8 amps, and you just can't stack 3004's high enough.

Now take a look at the resistance chart. That's where more speed comes from. At 0.02 ohms of resistance, a 2x2 stack of 4562's is about as good as it gets.

Aurora
2007.05.22, 01:07 AM
rharris,

Can't agree more with the Xeric.

The 2x2 4562 does do wonder, and probably can handle most majority of aftermarket hot motors nowadays. No question about that. I know the local track people raved about the sp8m4 and other less commonly used fet we see here. But that is another story.

I have seen have reference to that chart in the past as well, but then when I refer back to the spec sheet of HAT3010 and si4562, it looks like their drian current are not that much of a difference(but the resistance do differ quite a bit, I must say).

Could anyone clarify that for me?




I have a xeric in my Open class AWD. That motor rocks.

I run a 2x2 4562 in my awd with the xeric.

Check out the current chart here:

http://mini-z.home.att.net/mosfet.htm

a single stack of 4562's can handle 6amps. It would take a 2x3 stack of 3010's to to handle 6amps. it would take more then a 2x6 stack of 3004's to handle 6 amps. Remember the old atomic mods pics of xmods boards with huge 2x6 fet stacks? It looked cool, but you could never fit that in a Mini-z.

A 2x2 stack of 4562's can handle 8amps. It would take a 2x6 stack of 3010's to handle 8 amps, and you just can't stack 3004's high enough.

Now take a look at the resistance chart. That's where more speed comes from. At 0.02 ohms of resistance, a 2x2 stack of 4562's is about as good as it gets.

lfisminiz
2007.05.22, 07:24 PM
Thanks for the good info. ;)