slash... best motor?

[rootar]

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?

[rcsammy]

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?

[rootar]

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.

[rcsammy]

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

[killjoyken]

Originally Posted by rootar

youll need mikes heatsink clamp. which puts the motor and clamp around a $100 give or take im not sure.

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.

[rootar]

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.

[rootar]

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.

[rcsammy]

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...

[hailmick]

Originally Posted by rcsammy

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...

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

[rcsammy]

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

[hailmick]

Originally Posted by rootar

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.

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

[hailmick]

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

[rcsammy]

well im stil waiting for my MM to come back from castle so another wait wont make any difference
plus if they are decent packs it will save me money from the truerc one i was going to get

it says "JST-XH for balance/charge and Deans style T-connector for discharge." i have a JST XH balance adapter already but when i plug it in to charge do i only need to plug the balance connector in? and not the deans plug

also would it be a good idea to get a lipo sack considering i am new to lipo's?

[rootar]

gearing and temperature go hand in hand like this:

if the motor is too hot and esc barely warm = gear up as you are running to close to full speed all the time (which makes the motor run hotter yet is easier on the esc)

if the motor is cool and esc too hot = you have the opposite problem you are over geared which means your over taxing the controller running at too low of speed and the motor isnt even breaking a sweat.

for optimal gearing it all depends on how your driving and such but i like to equal out on motor and controller both in the 135-140 range on these 96+ degrees summer days.


if both are running too hot (over 160) then your prolly under powered or something else could be wrong