Project outrunner e-savage - Page 2 - RC-Monster Forums

Takedown · 02.02.2008, 11:49 AM

Ok Im gonna leave the decision up to PB.

Takedown · 02.02.2008, 12:46 PM

Hmmm... You think a 50-55 would work?

Takedown · 01:14 PM

Also which 50-55 outrunner would you reccomend?

Pedebeater · 02.03.2008, 04:33 PM

I will be using 4s, no question about it. They are maxamps 5000HV packs. I was also thinking that a bigger motor would do a little better, but i also thought the kv was perfect. I got a friend at my lhs that has an algorithm that will tell me about the speed I will be looking at. All I got to know is the tire diameter, diff ratio, and motor kv (still to be determined). If you guys have any suggestions on motors please share, if possible try to find one on www.hobbycity.com. The prices are amazing.

Thank you for all of the help.

Takedown · 02.03.2008, 06:54 PM

I personally think the 50-55 600kv would be perfect. I just tried it in my bros e-maxx and it was amazing! The tires were about to blow. I would not go for anything over 600kv because that alone is to much power.

lincpimp · 02.03.2008, 07:08 PM

Plus the lower kv should help with startup and overall amp draw. BL-Power seems to be having good success with a turnigy outrunner, but he is using 8s lipo, which cuts the draw in half compared to your 4s setup. You batts should be capable of 90amps or so.

Let us know the tire diameter, diff ratio. That with the battery info should allow me to make a decent choice of motor. What esc wil you be using, a mamba max?

zamis85 · 02.03.2008, 07:27 PM

Quote:

Originally Posted by Takedown

I personally think the 50-55 600kv would be perfect. I just tried it in my bros e-maxx and it was amazing! The tires were about to blow. I would not go for anything over 600kv because that alone is to much power.

+1 on this one

Pedebeater · 02.03.2008, 08:22 PM

Diff ratio: 2.923

Tire diameter: 5.311in Balooning rate of tire: about 1.5in

Battery: 4s lipo. 20C Constant(100 amps) 30C Sustained(150 amps) 50C Burst(250 amps)

esc: mamba max

If you need any more information please ask.

lincpimp · 02.03.2008, 08:30 PM

Ok, I am going to say that an out runner between 500 and 550 kv will be where you want to be. 50-55 size looks good, but the 600kv may be too much. For the price you can give it a try.

02.03.2008, 08:37 PM

make sure and take a video of the e-savage shattering all the bevel gears, outdrives, and half shafts. ;).

J.

Pedebeater · 02.03.2008, 09:06 PM

I will be using cvd's at the arms, probably revo centers and I will be using these scpecial yokes for the motor.

http://www.rc-monster.com/proddetail...mrevov2coupler

Thanks again for all of the help and please keep the suggestions coming.

08:35 AM

Nice. what plans do you have to fit CVD's ? I havn't found a solution for that yet. Those Yokes I think are set up for 8mm outdrives. I don't think you'll find a way to fit 8mm bevels into the e-savage diff case.

J.

Pedebeater · 02.04.2008, 05:25 PM

No, those yokes are for the motor, the motor shaft is 8mm. I will be using the generis EXarms with cvd's once the deal goes down.

Pedebeater · 02.04.2008, 06:27 PM

I just found this. It is shorter but wider. The stator dimensions are all larger. It has a 6mm shaft instead of a 8mm. It also has 20 more kv, will that make a serious difference?

New one
http://www.hobbycity.com/hobbycity/s...idProduct=5388

Other
http://www.hobbycity.com/hobbycity/s...idProduct=4907

Thanks again for all of the help.

sikeston34m · 02.04.2008, 07:12 PM

Quote:

Originally Posted by Pedebeater

I just found this. It is shorter but wider. The stator dimensions are all larger. It has a 6mm shaft instead of a 8mm. It also has 20 more kv, will that make a serious difference?

New one
http://www.hobbycity.com/hobbycity/s...idProduct=5388

Other
http://www.hobbycity.com/hobbycity/s...idProduct=4907

Thanks again for all of the help.

20kv will not make a noticeable different.

IMO, either one of those motors has potential. Either one will work.

At this point, I would base my decision on which size shaft will make for the easiest hookup.

IF your truck's stock transmission shaft is 6mm in diameter, then I would go with that one.

Then I would get a stock transmission shaft that is the length you need. The Original E maxx tranny output shaft is 65mm in length and 6mm in diameter. The stock Revo output shaft is 85mm in length. Each one has a steel "hump" in it, but that's easy to turn down. Stick it in a drill. While spinning it, use a grinder or a file on it. Go slow when you get it close so you don't remove too much material. Final polishing can be done with sandpaper.