hobbywing esc in a e-revo

hey guys i am not looking to race just play around and was thinking of the hobbywing 80 or 150 in my e-revo with a feigo 9xl motor.i am running 8.4 4200 mah batts,or what would you guys reccomend,different esc with this motor,etc.thank you!

[jsr]

I like the EZRun ESCs and Mike just got the 150A ones in stock! NiMH batts will not provide enough current for a BL setup. It will work, but it's handicapping the setup. You really need LiPos. If you plan to run a max of 4s, the 80A will work fine. It's not rated for over 4s. If you plan to run 5s or 6s, get the 150A. I have both 80A and 150A ESCs and both run great and really cool.
If you can afford it, I'd recommend a Medusa 60mm or 70mm motor instead. That'd be a killer setup that's still fairly low cost.

cool i am curious about the nimh batts though i ran them on my emaxx with a 9xl and a warrior esc and could keep up with a stock revo 2.5 in a flat out drag race.

[What's_nitro?]

Well, that means any improvement will make you faster than a nitro Revo!

Since you're running a 7-cell NiMh, a 2s LiPo is the same voltage. You will notice a difference in performance even with a LiPo of the same voltage because they can supply much more current, and that gives you punch! Can you wheelie with the 7-cell NiMh?

[jsr]

Yup, you'd be faster than the revo 2.5 if you use LiPos. LiPos have lower internal resistance and can discharge more current. Brushless motors need a lot of current when accelerating. The ease of current supply from the LiPos allows for more "punch" as what's_nitro put it, better acceleration, and depending on your BL setup, more top speed. The more aggressive the BL setup, the more LiPos will make a difference on top speed as more speed mean more current. Even the best NiMHs can only deliver 40-50A. Even low-end LiPos can deliver that much current.

Also, LiPos will tend to run cooler and longer under the same setup (ESC, motor, gearing, etc.).

that makes sense i just havent taken the lipo plunge yet.how about the esc & motor setup is that ok or what do you run.

hey barndog

hey do i know you or did you forget tthe rest of your reply?

i didnt forget anything ..just wanted to say a couple of things

i currently am running the ezrun 150 ..the 2350kv motor burnt up(too much gear).lipos are great and have a nice run time but a little pricey just to bash

[tom255]

Ezrun combo motors are CRAP and once more... CRAP! It heats up like hell even with FAN and one motor broke in first 5min of race on e-revo. Magnet cracked and inner shaft came loose. ESC was good, smooth cool with 2 polers, with 4pole 1515 NEU it coged. Dunno yet how it behaves with Medusas, but hope that HW will fix this issue soon somehow.
If you plan to use with Feigao, and 4S go with 80A version its cheap and enough powerful for bash.

Jsr: You recommended medusa motor foe HW ESC, did you tried to run HW 80/150A versions with medusas? How it worked, any coging? Friend now plans to buy 70mm medusa for E-Revo. I dont know recommend it or not

[jsr]

I haven't personally run a Medusa with the HW EZRun ESCs. I believe there are guys on the E-Savage.com forum that run this combo though without problems or cogging. I run the HW motors which I haven't had a problem with, but I run them on 3s (2350kV) and 4s (2300kV). I think one of the reason for the HW motor failures is that they were being run at 6s, pushing them to 52krpm, which is too high for an entry-level motor. I don't push entry-level motors much beyond 40krpm. All my HW motors are running between 25krpm and 35krpm and they stay very cool.
If you run a 4-pole motor with the HW EZRun ESC, start the timing at 7.5deg and go up slightly from there if you need to.

[fastbaja5b]

I've run a Hobbywing 150A motor with a Medusa in a converted Revo and it's a very happy combination, my mate runs it now and he has little knowledge on the BL side and if anyone could blow up a speedy he could, on 6s lipo it's still ticking away nicely.

He went through 4 MMM V3's in a month before this and the Hobbywing is about to tick over to two months old now.

thanks for info guys what size of medusa motor would compare to a feigo 9xl.

[jsr]

Medusa motors are 4-pole which generate a LOT more torque than a 2-pole so size doesn't really equate one-to-one here. A 50mm or 60mm Medusa will generate as much or more torque as a 9XL (if you choose about the same kV rating). The larger the motor, the more torque you'll get. If your E-Revo fits a 70mm or 80mm, those will work fine and be a bit more efficient at moving all the weight around. Keep in mind tho that most of the E-Savage crowd with trucks ranging from 8lbs to 10+lbs (with batteries) already have too_much_to_handle power and torque from a 50mm 2200kV or 3300kV or a 60mm 2200kV or 3100kV. I'm not sure how much the E-Revo weighs, but it's probably not that much more than an E-Sav with aluminum arms and bits. My TTR ST-1 BL truggy weighs 7lbs no batts, same as my E-Sav.