Revo 3.3 brushless conversion - which Motor & ESC?

[The Dark Knight]

I'm trying to decide which brushless motor & esc to put into my Revo 3.3. I'd like to run it on 2s to 4s batteries as I feel this will be plenty power. I'm going to make this a light weight build so will be using my Vantage racing carbon fibre chassis and a light wheel/tyre combo which I'm undecided on yet.

I'm using the Tekno conversion kit.

I really like Orion products so I'm currently looking at this Orion combo:

http://www.modelsport.co.uk/orion-combo-1-8-vortex8-r8-brushless-combo/rc-car-products/367390

Would the Orion combo be powerful enough for a Revo 3.3 or am I just as well getting the Castle mamba monster max + 2650 motor combo that most people seem to go for?

http://www.modelsport.co.uk/castle-mamba-monster-max-1-8-esc-+-2650kv-motor/rc-car-products/39920

Or are there any other options/combo's worth looking at that would suit my needs? Any advice will be much appreciated.

[DazzaClio]

If you dont plan on running any more than 4s then:

Esc.

http://www.rcecho.com/HOBBYWING-EZRUN-WP-SC8-Waterproof-120A-Brushless-ESC-Speed-Controller-SL564.html

Motor.

http://www.modelsport.co.uk/sirius-1515-motor-2200kv-4-pole-/rc-car-products/368585

Or

http://www.rcecho.com/HOBBYWING-XERUN-4274-2000KV-Brushless-Motor-EZRUN-WP-SC8-120A-ESC-Combo-ME222.html

If you would like to run upto 6s then:

http://www.rcecho.com/HOBBYWING-XERUN-4274SL-2000KV-Brushless-Motor-150A-ESC-LCD-Program-Card-ME237.html

Good Luck.

Thanks.

[The Dark Knight]

I don't plan on running on anything more than 4s but would it be worth my speccing it so I could run 6s in the future? Thanks for your suggestions too.

I take it that Orion combo wouldn't be suitable for my conversion?

[NOFX]

Hi, have a look at the hobbyking site, About

Edited September 19, 2012 by NOFX

[suicideneil]

The Orion motor is too small really, you want a motor atleast 36mm x 74mm long for a truck ( that system is more for a 1/8 buggy or SCT ). I would be looking at the Hobbywing XErun or EZrun 150amp escs and the 42x74 motors, 2000-2250kv rating will work perfectly for 4s lipo ( you don't want to use less than 4s lipo either, not in something this size ). Sirius 1515 2200kv motor would work nicely, as would any 1/8 scale 120-150amp esc- lots of options about, I have a good guide that is directly applicable too: http://www.robotwars.00server.com/emaxxupgrade.html since emaxx and erevo run the same power train as such.

[The Dark Knight]

The Orion motor is too small really, you want a motor atleast 36mm x 74mm long for a truck ( that system is more for a 1/8 buggy or SCT ). I would be looking at the Hobbywing XErun or EZrun 150amp escs and the 42x74 motors, 2000-2250kv rating will work perfectly for 4s lipo ( you don't want to use less than 4s lipo either, not in something this size ). Sirius 1515 2200kv motor would work nicely, as would any 1/8 scale 120-150amp esc- lots of options about, I have a good guide that is directly applicable too: http://www.robotwars...axxupgrade.html since emaxx and erevo run the same power train as such.

Thank for that link, very interesting read. Think I'm just going to wait until I save a bit more or sell more parts and just go for the Castle Mamba Monster. I'd rather buy once and get it right first time. I take it the Castle MMM can be ran on 4s? But could easy run 6s if I wish?

[suicideneil]

Thank for that link, very interesting read. Think I'm just going to wait until I save a bit more or sell more parts and just go for the Castle Mamba Monster. I'd rather buy once and get it right first time. I take it the Castle MMM can be ran on 4s? But could easy run 6s if I wish?

Yep, 4-6s lipo is fine. If a castle link usb programmer isn't included ( I think they give you voucher to get one free* ), then it's worth picking one up at the same time, or the field link programmer ( same thing, but doesn't need a PC to work ).

[electric]

If the tekno conversion is the same as it was a few years back i would definitely brace the battery tray (black plastic on my old conversion) as it was the first thing to snap.

I was using a modded mamba max esc with external BEC with a 9xl motor (1900kv) on 4s. Personally if I did the conversion again I would go with a lower KV motor and go up to 6s, generally if you have a decent setup the efficiency will be better - The runtimes weren't the greatest so something to consider

Got a couple of vids too on my channel check them out:

http://www.youtube.com/user/Cashmerebear/videos?view=0

The gearing the vid was a little too high really check out this rc speed calculator to work out the best gearing and motor for the sort of speeds you want to acheive - http://scriptasylum.com/rc_speed/top_speed.html

Hope this helps:)

[The Dark Knight]

Yep, 4-6s lipo is fine. If a castle link usb programmer isn't included ( I think they give you voucher to get one free* ), then it's worth picking one up at the same time, or the field link programmer ( same thing, but doesn't need a PC to work ).

Ok cool, thanks for the advice. Is there any preference between the usb programmer and the field link programmer? I only have a Mac book too so not sure if that will be compatable or not?

[The Dark Knight]

Yep, 4-6s lipo is fine. If a castle link usb programmer isn't included ( I think they give you voucher to get one free* ), then it's worth picking one up at the same time, or the field link programmer ( same thing, but doesn't need a PC to work ).

If the tekno conversion is the same as it was a few years back i would definitely brace the battery tray (black plastic on my old conversion) as it was the first thing to snap.

I was using a modded mamba max esc with external BEC with a 9xl motor (1900kv) on 4s. Personally if I did the conversion again I would go with a lower KV motor and go up to 6s, generally if you have a decent setup the efficiency will be better - The runtimes weren't the greatest so something to consider

Got a couple of vids too on my channel check them out:

http://www.youtube.c...r/videos?view=0

The gearing the vid was a little too high really check out this rc speed calculator to work out the best gearing and motor for the sort of speeds you want to acheive - http://scriptasylum..../top_speed.html

Hope this helps:)

My Tekno kit hasn't arrived yet but what I've seen the battery tray does look quite flimsy, I'll probably get it up and running and then look into fabricating a more sturdy one.

What sort of run times are people getting with the Monster Mamba Max? And with what batteries? I'll be happy with it going around 40-50mph with run times of around 30-40 mins if possible.

Here is link to another Orion motor that I stumbled accross, the XL version says its designed for monster trucks and is a lower KV:

http://www.area52.cc/news/1023-team-orion-vortex-mr8-a-mr8l-bl-motors.html

[suicideneil]

Ok cool, thanks for the advice. Is there any preference between the usb programmer and the field link programmer? I only have a Mac book too so not sure if that will be compatable or not?

You'll be wanting the fieldlink in that case. The field link is essentially just a stand alone version of the castle link- you can connect it directly to the esc and alter settings that way with the buttons on the card ( though you can also connect the filed link to your pc and esc and use it like the castlelink ). The castle link connects the esc to a computer and lets you change settings via software- I'm not sure if it's Mac compatible though so the field link is the better option.

I'd skip the Orion stuff altogether really- there are cheaper and more powerful options that aren't just rebranded items ( one of Orions new escs is just a rebadged hobbywing item for example ) or over priced for what you get.

[DazzaClio]

http://www.msuk-forum.co.uk/topic/71808-hyper-7-brushless-owner-again-quick-video-of-the-hyper-running-updates-page-14/page__st__150

Couple of pics of mine at the bottom of page 11 I think.

Thanks.

[The Dark Knight]

Ok thanks guys. If I go for the Monster Mamba Max is this the right one, seems a good price, although there will be a chance of import tax:

http://www.ebay.co.uk/itm/Castle-Creations-2200KV-Mamba-Monster-1-8th-Brushless-MOTOR-ESC-COMBO-E-MAXX-/360486427550?_trksid=p3284.m263&_trkparms=algo%3DSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252BIEW%252BFICS%252BUFI%26otn%3D21%26pmod%3D360487095461%26ps%3D54

Theres the 2200kv of 2650kv.

[RcMonsterBash321]

mamba monster all the way m8 i run my erevo on 4s and does a standing backflip..... MMM!!!

[Dom C]

Ok thanks guys. If I go for the Monster Mamba Max is this the right one, seems a good price, although there will be a chance of import tax:

http://www.ebay.co.u...487095461&ps=54

Theres the 2200kv of 2650kv.

Meh i'd go for this much better esc and an equal if not better motor, also you wont get hit with customs like you would with us orders.

http://www.ebay.co.uk/itm/XERUN-Competition-RC-Car-Brushless-Motor-150A-ESC-SL241-/270651485530?pt=UK_ToysGames_RadioControlled_JN&hash=item3f0415ed5a#ht_3775wt_1188

http://www.modelsport.co.uk/sirius-1515-motor-2200kv-4-pole-/rc-car-products/368585

[The Dark Knight]

mamba monster all the way m8 i run my erevo on 4s and does a standing backflip..... MMM!!!

So tempted to just go for this MMM system. What sort of run times are you getting?

Meh i'd go for this much better esc and an equal if not better motor, also you wont get hit with customs like you would with us orders.

http://www.ebay.co.u...#ht_3775wt_1188

http://www.modelspor...products/368585

I'm tempted by this motor, seems a good spec for the money although I haven't heard of this brand before. I'm not so sure about the esc though as it would be coming from hong kong / china, could also be hit with import tax and delivery can take up to 5 weeks.

[suicideneil]

Runtime depends more on the quality / capacity of the batteries, your gearing ( and the model itself ), and your driving style- the esc is just gateway for the current to flow, it doesn't determine runtimes in itself.

With a truck like the (e)revo you'll be needing to run around 5000mah lipos,- most guys report anything from 20 upto 40 minutes or more of runtime- really does depend on how much full throttle you use and how smooth / harsh you are with accelerating and braking...

[The Dark Knight]

Runtime depends more on the quality / capacity of the batteries, your gearing ( and the model itself ), and your driving style- the esc is just gateway for the current to flow, it doesn't determine runtimes in itself.

With a truck like the (e)revo you'll be needing to run around 5000mah lipos,- most guys report anything from 20 upto 40 minutes or more of runtime- really does depend on how much full throttle you use and how smooth / harsh you are with accelerating and braking...

Ok cool, I've not started looking at batteries yet. I'm still tempted just to buy a new brushless revo, just by the time you add up all the parts needed you're almost just at well buying a new one or even a second hand one.

[DazzaClio]

Ok cool, I've not started looking at batteries yet. I'm still tempted just to buy a new brushless revo, just by the time you add up all the parts needed you're almost just at well buying a new one or even a second hand one.

Depends weather you like a project?, but yeah you could sell the Revo 3.3 and put the funds towards a E-Revo.

Good Luck.

Thanks.

Edited September 22, 2012 by DazzaClio

[The Dark Knight]

Depends weather you like a project?, but yeah you could sell the Revo 3.3 and put the funds towards a E-Revo.

Good Luck.

Thanks.

I do like a project but I'm just worried that I spend all this money converting the 3.3 then end up with tranny and diff problems like alot of people seem to have.

I've been looking at other options too, the new HPI Savage XS SS kit interests me, read/watched some good reviews on it too. I like the size of the Revo though and already have some good hop-up's for it which could be transferred over to an E-Revo.

I see from your signature you've had an E-Revo converted to brushless, was it an actual E-Revo you converted or a 3.3?

[DazzaClio]

I did link my thread on the first page.

I've done both Revo 3.3 to Brushless and E-Revo to Brushless.

Thanks.

Edit:

I never had any problems with the Gearbox or Diffs.

Edited September 23, 2012 by DazzaClio

[The Dark Knight]

Still thinking about converting my Revo 3.3, is this Hobbywing combo any good http://www.rcecho.com/HOBBYWING-XERUN-4274SL-2000KV-Brushless-Motor-150A-ESC-LCD-Program-Card-ME237.html or am I better off going for the Castle MMM?

The Hobbywing is around

[DazzaClio]

Still thinking about converting my Revo 3.3, is this Hobbywing combo any good http://www.rcecho.co...Card-ME237.html or am I better off going for the Castle MMM?

The Hobbywing is around

Edited September 27, 2012 by DazzaClio

[The Dark Knight]

I really can't decide between converting my Revo 3.3 or getting a Savage XS SS kit, what are peoples thoughts? Either of the above will be my basher.

[suicideneil]

The little savage won't make much of a basher- too light and bouncy to handle tough terrain, also less durable in terms of power handling.

Converting a revo doesn't have to cost the earth though, and it's a fun project if into the mechanical & DIY side of things; this may give you some ideas:

http://www.beatyourtruck.com/forum/showthread.php?58732-Nitro-revo-to-electric-conversion-thread