137LikesTeam Associated RC10 B5m Mid-Motor & Rear Motor Thread
04-22-2024, 12:09 PM - Wikipost
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05-22-2014, 03:24 PM
Tech Master
IMO, 17.5 is sketchy for MM. Not because MM sucks or anything weird. Its power and heat. The car is heavier unless you spend $$$$$ to make it light, and in general 17.5 motors are run hot to get speed out of them. But the MM has much less cooling, so that makes the whole thing worse. Almost every mod car at the local track is MM and they can do wheelies all day with the traction level. But in stock, 90% of the cars are RM. Mostly for the power. MM handles just fine. I am hoping to put together a mod MM car soonish. I need a second class to run.
I have a feeling that SNR, Exotek or Diggity is looking at or should be looking at making a graphite chassis for the B5M.
05-22-2014, 03:42 PM
It's all perception. A couple mm cars at stock nats that weighed in at 1600+ finished right behind Hartson. A really fast local who installed a fan has his motor coming off at about 130 after 10 plus minutes of running straight. I am not saying what you said has zero validity, but there are ways around those obstacles.
05-22-2014, 03:51 PM
Tech Master
A fan on the motor is definitely nice. I am kinda surprised AE and TLR didnt integrate a fan mount into the water fall. Most guys in both camp just mod them. Maybe an after market will make a new waterfall/brace with a fan mount built in. But 130 with a fan and a 1600 gram car is pretty impressive. I have vented my bodies and still found that 150 was hard to maintain for 5-6 minutes, much less 10.
But you are right, I'm surprise they didn't incorporate a fan into the waterfall as well!
Jconcepts, you listening??
05-22-2014, 04:01 PM
Um, I "think" 78. Its indoor. But....in 17.5 last night my shorty got up to 110 in my RM car. So the traction, plus all of the 180's you punch out off work the electronics. The current layout is pretty heavy handed on throttle.
05-22-2014, 06:05 PM
Tech Regular
Lots of braking creates heat too. Some have a hard time keeping cool while others don't have issues at all due to driving style. Its kind of funny you guys talk about motor temps while discussing 2 of the hottest running motors I have found(Tekin and Reedy). Also a lot of heat can be generated from non efficient gearing and timing. Once the sweet spot is found temps tend to be a bit cooler. The weight of the car shouldn't be an issue since 22's are close to the same weight.
Last edited by bambambennett; 05-22-2014 at 06:29 PM.
05-22-2014, 06:15 PM
alot MM run 17.5 here and so do I. Love them even on our outdoor track. just need to set them up and chose the right tires.
I dont concide to the whole MM is just for sugar and RM is for loamy only thoughts. etc ect...
I dont concide to the whole MM is just for sugar and RM is for loamy only thoughts. etc ect...
05-22-2014, 07:46 PM
Tech Initiate
mk2rocco- i have a question for you. what kind of spektrum receiver is that? i could not fit my spektrum sr300 receiver in there EVEN with a small footprint ESC- speed passion Reventon R..
because of this i m considering buying a $9.99 orange Rx for spektrum dsm, it is considerably smaller.
because of this i m considering buying a $9.99 orange Rx for spektrum dsm, it is considerably smaller.
There is lots of material to be removed before you get to the board.
05-22-2014, 08:30 PM
IMO, 17.5 is sketchy for MM. Not because MM sucks or anything weird. Its power and heat. The car is heavier unless you spend $$$$$ to make it light, and in general 17.5 motors are run hot to get speed out of them. But the MM has much less cooling, so that makes the whole thing worse. Almost every mod car at the local track is MM and they can do wheelies all day with the traction level. But in stock, 90% of the cars are RM. Mostly for the power. MM handles just fine. I am hoping to put together a mod MM car soonish. I need a second class to run.
05-22-2014, 09:00 PM
Some people are getting to 1500 grams. Lol, I dont want to ague what is needed and what is wanted. lol. Many people beleive they need 1500 grams for stock. I dont believe that, but many do. People are buying carbon fiber motor plates, lol. That dont really displace heat like the alum one. I run my cars mostly stock with zero mods. I dont believe in mods. If the car "needs" mods, I sell it.
05-22-2014, 09:24 PM
Tech Apprentice
you guys with a lot of experience in 17.5 if you had $275 burning a hole in your pocket to buy a 17.5 motor and a esc to put in a 5m what would you buy?
05-22-2014, 09:29 PM
r10 pro and a R1 wurks motor
05-22-2014, 09:54 PM
Tech Master
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hands down a hobbywing v3.1 stock and likely a x20 lrp motor. I havent run the motor yet bet ive seen a few recently that deff caught my eye. and I run a d3.5 for club races.
05-22-2014, 11:07 PM
so i made a stupid mistake. ordered aluminum c and d mounts...but i accidentally ordered the ones for the b5 instead of the b5m. super mad at myself. we will see if amain has a heart for stupidity.
05-23-2014, 04:00 AM
i like my x12 17.5 when i had it,only downside is they like to run a bit warmer then most motors,Might not be such a good idea in mm
05-23-2014, 05:18 AM