slash... best motor?
 

hello everyone, i got a traxxas slash a few days ago
i already have a MM and im soon to be geting a 3s lipo
so looking for suggestions on which motor to go for? dont realy have a budget at the moment as i will just see what there is
the only two motors i realy know of are the mamba 5700 which i have heard good things about and it is also waterproof which is a big plus as the rest of the slash is
and then the velineon which seems to be the preferred motor on the traxxas forums(i wonder why:oh:)
thanks, sam

a feagio 9L works GREAT, all the power youd ever need in a slash, and doesnt even get hot to boot, i also get over 45mins of runtime on my 5000 3s, you have to becareful about it tho as mine blew one of the rear tires apart, not from hitting the body either just came on to the front straight gassed on it and BAM tires starts flopping all over.

I'm quite happy with a Sidewinder 4600 combo in mine:

http://youtube.com/watch?v=-eJl0ZW0qd0

Hehe, throw a 1509 on it

sounds fun:mdr:

forgot to say im looking for 40-50mph(nitro speeds) from it and would like to be able to gear it and run fine on grass(short), dirt and tarmac without overheating

also does anyone know where i can find the manual for a hyperion EOS0606i charger? just got one 2nd hand but its been sent with the wrong manual

If you haven't driven it yet, I suggest you do so before you decide you want that kind of speed out of it. While it would be fun to drive in a straight line at 40-50mph, it will not handle high speed gracefully as it has a high center of gravity and tends to traction roll quite easily. You may find yourself running after it quite often to put it back on its wheels at those speeds.

Well so does a Rustler so nothing new there :tongue:

Consider Medusa MR-036-050-3300V2-3F. It should be enough for 2WD.

It's quite a bit worse than a Rustler in terms of CG and traction rolling. I've got both and my Slash is on it's lid far more often with my moderately powered BL setup.

Fair enough, I just thought they were similair in terms of C of G.

iv run quite a few packs through it and yes it does roll alot easier than the rustler but you get used to the handling after a while and can easily drive it without rolling
i deffinatly want to get brushless

im still leaning towards the mamba 5700 at the moment though, mostly because its waterproof which means i can go to the track and it doesnt matter if theres puddles or its raining

edit: and thanks for the link to the manual :)

You can run the 5700 in there, but the 4600 motor is a little better suited for it IMO. It'll run in the low-mid 30mph range on 2S and if you want more speed, just drop in a 3S lipo.

would the 4600 give more torque then? being a lower Kv
and also run cooler?

Yes, it should run cooler and have more torque than the 5700.

my 9L on 3s is geared for 48mph and easily runs aways from nitros (i geared up from my original plans of 40 to lower the motor heat) and i have no problems with neither the mm or motor neither see over 140 even after 45 mins of straight running.

My mate put a 9l on 3s in his stampy and that thing is a wheelie popping machine. Any gearing he has run so far it runs dead cool and so does the MM. He is also running the Max tractor tire things on it.

The 9l is a beast! I run a 9l in a heavy pede based tube buggy, and it does great!!!

haha i was pulling HUGE 25 foot backflips over the tripple during the race just to show off, lol the 9l i definetly a beast in ANY rig at or under 5 pounds and btw the vxl tranny in this slash is silky smooth compared to the older regualar 272 models i remember.

i think you would be extremely pleased with the 9L and it is completely drivable at low speeds if you can have a tiny bit of self control and not burry the trigger all the time lol even my 5th battery pack running with the 9L in there i still couldnt resist, scale trucks just look so damn cool doing insane power wheelies even from a 35-40 mph roll.

I've been told that the entire cms36 motor line has the same amount of torque. I do know for a fact my 6900 in the rustler is a pretty nasty combination especially with a 3s (yes I know), although the 2s really seems to flip it backwards even more so at any speed, probably the higher C/mah rating. But I've also read that torque is a function of kv. But so are amps, so perhaps the variance in amp draw between the motors counter act the kv and come out to equal torque numbers. Anyways, when I fry my 6900 after runnin it on 3s lipos, I'll look into that 9L motor everyone keeps talkin about, does it cost about the same as your standard BL motor?

has anyone got a link to this 9L? it seems pretty popular
sorry im pretty new to brushless and dont realy know any US shops other than rc-monster so not having much luck trying to find one

how would it stand up to water? just the odd puddle or wet grass?

idunno on the puddle or wet grass but the track was kinda wet and muddy the whole night running the slash and im not even so sure that the castle motors are what youd call water proof i mean if any water gets to the windings it can short the motor and burn it up. I bought my 9L from rc-monster, they are cheaper than a castle motor, but youll need mikes heatsink clamp. which puts the motor and clamp around a $100 give or take im not sure.

does mike sell them anymore?
i can see a 9XL but not a 9L

Do you have a pic of how you fit the heatsink clamp? I tried to fit it but it looked like I'd have to carve out the back of the tranny. I just put an 8L/MM combo in my Slash, but haven't had a chance to run it yet.

I had one in a pede on 3s. It's great!

any ideas on this?

i was thinking the same, looking at the pictures of it i think the fins only cover half of the motor can so it might be alright
rootar did you run the clamp on it in a slash/rustler/pede?

you have to shave the fins down to fit inside the plastic housing its a tight fit but it works, and easier and better solution would be a FLM tranny case :whistle: one of these days ill get one for my slash. i switched to mod1 gearing and can run 40/12 through 40/17 i usually run a 40/14 which is silly silly fast.

http://www.rc-monster.com/forum/atta...8&d=1214712244

for just general running is the heatsink realy needed? seems a waste to grind down a brand new heatsink clamp, or would a normal heatsink work?

what is mod 1 gearing?

the main purpose is not so much for the heatsink but for the clamp part as it sandwhiches the ends of the motor together not letting them "pop out" on you during running, the feaigo motor are pressed or snapped together so under hard driving or any jumping or bashing they can easliy come apart the mike heatsink clamp prevents this.

if you dont wanna grind on a heatsink buy the flm tranny and itll just be a bolt up installation and you have a much stronger motor mount and the tranny will serve as a bigger heatsink also.

Oooooo...that's what I was afraid of. I don't know if I'm willing to grind down my heatsink clamp or not. The FLM tranny is starting to look really good now. :mdr:

I ran my Slash with 40/12 and a 2s lipo for a little up and down my street, but I'll have to wait to try it on 3s and check the temps.

Here's a pic of mod1 gears with the stock 48p spur on top and a mod0.8 (32p) spur for a Jato to the left. Revos use mod1 gears as well as all 1/8 scale buggies.
http://i21.photobucket.com/albums/b2...e/DSCF3376.jpg

hay killjoy
can you still fit your spur /gear cover on that
if so is it modded

wow that looks alot better than the tiny teeth on the stock spur
and i have a load of spurs from my revo aswell

right i have some cash in paypal now so where can i get a 9L from as i cant fine one on mikes site?

and i will get some mod 1 pinions... how many sizes would i need to make sure i can get the correct gearing?
http://www.rc-monster.com/proddetail...=5mmmod1pinion

and will i need a bore reducer to fit the mod 1 pinions on the 9L?
http://www.rc-monster.com/proddetail...rod=RCMreducer

a 9l with 5mm shaft can be found here http://www.hobbycity.com/hobbycity/s...4&v=&sortlist=

but i have never gotten one from them i have a feigao one but id get this as the next best thing or 2 of them they are cheap you could try the 7L same kv as traxxas vxl motor and 9L the 4s champion at 60us for both its a steal plus delivery of course but youll still need monster mikes awesome mod 1 pinions

usig the 9L on 3s start with a 40/13 and if your motor is getting hot and the esc alot lower try gearing up to a 40/14 but with either of these i think youll be more than happy as it will still pull a wheelie from 3/4 throttle roll.

and no the gear cover will not fit back on there, but as others told me its no big deal the mod1 gears spit out dirt like its nothing.

wow those motors are cheap
are they the same as the feigao 9L? they seem a but too cheap if you get what i mean

rootar why would gearing up make the motor run cooler?

edit: also what the difference between the different motors? like the 7,8,9 L, XL...

just ive killed 2x 86 spurs vand a 20 and 24 pinion in two weeks i think ill be ordering mike mod 1s

sammy

the right gearing will keep the motor from over reving if im correct

the differance in number eg 7 8 9L is kv the L motor 60 mm long the xl is 70 mm long the xL you can gear it up more and they tend to have lower kv which will produce less heat and they are cheap motor but if you do the right thing by them they will go great

ok then
so the 9L
http://www.hobbycity.com/hobbycity/s...hless_Inrunner

and while im ordering from hobbycity i might aswell try out a zippy lipo
either this:
https://www.hobbycity.com/hobbycity/...idProduct=6501
or this:
https://www.hobbycity.com/hobbycity/...idProduct=6350
i guess the zippy-H is the better pack?

and then a motor heatsink clamp and some mod1 pinions from mike

yes the zippy h is a better pack but its a 20 day wait
the heat sink clamp and pinions from mike are a good idea