Medusa Afterburner V2 BL motors

Originally Posted by Unsullied_Spy

but adding cells for voltage gets heavy and takes a lot of room.

As I understand, if you go for higher voltage and lower kv, you can get lower capacity amp packs. With 5s5000mah packs you should get about the same runtime as with 10s2500mah packs (both setups geared for the same speed). So the weight of the batterys should be about the same.

[Unsullied_Spy]

Originally Posted by drkdgglr

As I understand, if you go for higher voltage and lower kv, you can get lower capacity amp packs. With 5s5000mah packs you should get about the same runtime as with 10s2500mah packs (both setups geared for the same speed). So the weight of the batterys should be about the same.

In theory that sounds about right, but I think the 10s 2500 mAH pack would still be bigger. The weight should be really close though. The problem with running 10s is there aren't a whole lot of ESCs on the market to run that unless you get an air ESC and go through the trouble to make it work. MGM has some ESCs that'll handle it but you're looking at $500+ to get one. Lutach has a 10s ESC though, it seems to be pretty good so far. Not sure what price but they seem to be great ESCs for the price.

[rchippie]

Im looking for a few opinions, i just want to make sure i dont get the wrong motor. As some of you may or may not know i pre ordered a MEDUSA 70mm 2300kv motor to run on 4s in my GTP . Is this the right choice or should i get the 2000kv motor instead ?. I have recived a few opinions via pm's, & im looking for a few more . Thank's

[lutach]

Originally Posted by rchippie

Im looking for a few opinions, i just want to make sure i dont get the wrong motor. As some of you may or may not know i pre ordered a MEDUSA 70mm 2300kv motor to run on 4s in my GTP . Is this the right choice or should i get the 2000kv motor instead ?. I have recived a few opinions via pm's, & im looking for a few more . Thank's

The 2300Kv is good for 4S lipos as 300Kv isn't much when using such low voltage . I would have gone higher voltage, but if you insist on 4S then it's a good motor. It'll be spinning at around 34000rpm so it won't be running too hot, but that will also depend on your gearing.

Ahh the long awaited 70 mm motors are finally almost here! The 80s are a surprise tho, I had no idea they were doing them. Also, the 2 new 60mm ones are a nice addition too.

Wasn't sure if I should make a new thread or in here. Its a motor question, so I opted to put it in here, so I apologize in advance if it should have gone in a new thread.

Anyway, I have a question for you gents. I have the following packs and run this setup:

2 x 4s1p A123 packs, and 2 x 3s1p A123 packs

Kyosho Inferno ST-RR
MMM v1 - still going, fingers crossed
15/50 gearing with a Feigao 8XL 2084kv
4s2p A123

This setup currently lasts about 13min of race style driving. This was excellent when my club was running 6min heats and a 10min main. Having now switched to 10min heats, and 20 or 25min finals, its now a pain in the ass.

With only 2 4s packs, I can only do about half the final and then run out of packs. I was thinking that if I can run 7s1p packs and get 13-15 min out of them, then I can have a pack to change for the 2nd half of a 20min race. A 7s1p 2300mah A123 pack is equivalent to a 6s LiPo (same charged voltage, slightly higher nominal voltage).

Which 70 (or 80)mm Medusa should I be looking at to achieve my goal of getting 12-15min (or higher) run times from a 7s1p pack. Also, what gearing should I be looking at? I've got pinions from 12t - 17t.

I was thinking the 1600kv or the 2000kv 70mm.
Any thoughts would be greatly appreciated, thanks guys.

Oh yea, does anyone have an idea of when they'll be shipping the pre-orders?

[sikeston34m]

Hi Cdis,

I don't have any experience with the Kyosho Inferno, but I will help as much as my insight will allow.

First thing to consider, What kind of track are you running? A bunch of tight turns or long straighaways?

What top speed are you looking for? I'm sure the 70mm motors will be real powerhouses. I plan on getting a 70mm AND a 80mm myself. But in the meantime, I've been bashing around with a 36-60-1500kv version. I'm very pleased with it. I've been playing around with 22/40 Mod 1 gearing in an E Revo. It works well on 4S 20 5000mah Lipo. This yields about 23 minutes of runtime. I know this setup would be competive on the track. On 6S, it runs too hot for continous use.

I just switched the gearing to 18/40. We'll see how that does and what the temps are like. This may be the good 6S setup I've been looking for, or perhaps 5S.

If you want more runtime, pack some Lipo in there. You'll also lose some weight by doing so.

On the Monster Mamba that you have, please go to the Castle Website and update your firmware. Castle has came out with the a new version to make them live. The problems the Monsters were having has been linked to the old firmware version.

I hope this helps.