E-motor mount for Nitro Revo

you may want to run two packs with the hvmaxx though, if you go to i 14.8v pack and rewire you will have a reduced voltage for your servos, just a heads up

[SixShooter]

I'm Waaaayyyy out of the loop my self when it comes to anything other than 7.2v or 8.4v single packs. So I was thinking of simply running some 4200-4800 7.2v single packs. I'm seriously thinking of also buying a Kershaw Revo chassis...just to make my life easier.That way I don't have to modify the stock chassis is case I ever deside to go Nitro again.

no dont do that , just use mikes mount and use a y adapter for brakes, i bet i could run mine nitro (if i had a motor) in like 2 hours of work,

aside from the batterys and such on the passenger side, the truck is stock more or less if you use mikes mount

btw i was saying to use two 7 v packs , instead of wiring the hvmaxx for one 14 v pack such as 4s lipo, you will lose some bec voltage

[SixShooter]

Well I was trying to be lazy thing about Kershaw's chassis until I did a search. So now I'm just going to use my stock chassis and makes some battery brackets...I already ordered Mike's bracket before I saw the Kershaw chassis :027:

Well so fair I got her stripped down and she was dirty. So while I wait on Mike's bracket I'm going to try and figure out my Servos and gear box. My truck still has the dual steering servos, so I guess now is a good time to convert to a single. I'm not sure how to do the brake yet...I thought the ESC had it's own brake? Thenj on the gear box, I was thinking of doing a single speed?

[BrianG]

Originally Posted by SixShooter

...I'm not sure how to do the brake yet...I thought the ESC had it's own brake? Thenj on the gear box, I was thinking of doing a single speed?

If you want reverse and motor brake, you will have to do the single speed mod. If you don't do the single speed conversion, the one-way-bearing on first gear will prevent you from using the motor brake.

While you're in the tranny, you might want to decide if you want to gear down or up depending on the motor you use. If you use the HVMaxx, you might want to get the narrow-ratio gear set. If you use an XL motor, you can use the standard or wide ratio gear sets. Picking the right gear set will give you the most flexibility in choosing the spur/pinion tooth counts. BTW: In all three gear sets, second gear is the only one that changes. Check out the speed calculator link in my sig and you'll see what I mean.

[SixShooter]

Originally Posted by BrianG

If you want reverse and motor brake, you will have to do the single speed mod. If you don't do the single speed conversion, the one-way-bearing on first gear will prevent you from using the motor brake.

While you're in the tranny, you might want to decide if you want to gear down or up depending on the motor you use. If you use the HVMaxx, you might want to get the narrow-ratio gear set. If you use an XL motor, you can use the standard or wide ratio gear sets. Picking the right gear set will give you the most flexibility in choosing the spur/pinion tooth counts. BTW: In all three gear sets, second gear is the only one that changes. Check out the speed calculator link in my sig and you'll see what I mean.

Awsome!


Well this electric stuff is additive lol While I'm figuring out my Revo I'm converting my Tmaxx into an Emaxx :027: I'll use the HV maxx on it and find something better for the Revo. That way I want have to rush and have plenty of time to research stuff like 8000mah batteries I keep hearing about.

[SixShooter]

Originally Posted by entjoles

btw i was saying to use two 7 v packs , instead of wiring the hvmaxx for one 14 v pack such as 4s lipo, you will lose some bec voltage

Oh I C :027:

that would work good, brians mod for the i speed looks to be effective and would serve your purpose well , have fun and keep us posted

[BrianG]

Sounds like a good plan; have something to run and then take your time to do the job right. And yes, BL IS addictive!

[SixShooter]

Originally Posted by BrianG

Sounds like a good plan; have something to run and then take your time to do the job right. And yes, BL IS addictive!

Yes sir, I was actually trying to sell the Tmaxx but changed my mind. I got to thinking all I needed was a chassis and gear box to make an Emaxx. I'll help fund the project with the money I make off the Tmaxx motor ( new) and gear box. I also got a chopper I'm selling that I can use the money for batteries. So hopefully this Emaxx want really cost me to much to build. That way I can use my funds on the Revo ;) Just need to figure out what to do on my son's Emaxx...maybe some Kershaw 700's?

[GriffinRU]

Very nice, after all it was not a bad idea (motor mount in the past 1, 2, 3).

HV motor would work fine, but heatsink might need to be adjusted properly.

What is wrong with keeping tranny unlocked with addition of rear brake?

[BrianG]

It's nice to see the final product! It's not too different from the original concept except for the mounting block and the rear support.

There are a couple of reasons for locking the tranny. Reverse for one. Yeah, you could retain the stock reversing mechanism, but it's quite weak. I suppose this isn't a big deal if exclusively racing. Then, the catch pin that the clutch arm engages when shifting into second seems a tad weak. The tranny is lighter once you remove non-essential parts. You also get to remove the weight and complexity of the brake servo and associated hardware. Lastly, most of these motors have more than enough torque to drive second gear directly - much like the emaxx.

But, there is nothing wrong with keeping the 2 speed otherwise...

[GriffinRU]

Originally Posted by BrianG

It's nice to see the final product! It's not too different from the original concept except for the mounting block and the rear support.

There are a couple of reasons for locking the tranny. Reverse for one. Yeah, you could retain the stock reversing mechanism, but it's quite weak. I suppose this isn't a big deal if exclusively racing. Then, the catch pin that the clutch arm engages when shifting into second seems a tad weak. The tranny is lighter once you remove non-essential parts. You also get to remove the weight and complexity of the brake servo and associated hardware. Lastly, most of these motors have more than enough torque to drive second gear directly - much like the emaxx.

But, there is nothing wrong with keeping the 2 speed otherwise...

I see, and yes I was talking about tranny with one-way with center diff., thats is why I was talking about rear brake. But for bashing it is nice to have reverse...