tc3 4s mild motor - RC-Monster Forums

steveo · **tc3 4s mild motor -** 09.17.2009, 07:40 PM

ok i only have 4s lipos and looking for a 50-60 mph setup, going to use fegiao motor and was looking at 9s 10s and 11s any suggestions, i will running in a big parking lot with nitro cars traction will be the biggest issue but hope the weight of the 4s will keep it planted

brushlessboy16 · 09.17.2009, 07:47 PM

L can will run cooler. S will get warm.

Depending on what kind of cash you have, look into a 1409 neu.

Or if you can find it a 36-50 medusa.

All more efficient choices than the feigao s can...

_paralyzed_ · 09.17.2009, 08:15 PM

mild setup.... only 50-60mph.........on 4s..............

lutach · 09.17.2009, 10:11 PM

Quote:

Originally Posted by _paralyzed_

mild setup.... only 50-60mph.........on 4s..............

I know right....with 2S lipos the car will reach that with a 9S and the correct gearing. On 4S tthe TC3 will be insane even with the minimum gearing possible

.

brushlessboy16 · 09.17.2009, 10:25 PM

Lutach clear your pm's

steveo · 09.18.2009, 01:22 AM

this is why i am asking, i never had bl in the car , so and maybe a 9l and gear it accordingly for my mark does anybody see this not working

what about a 16s few rpms less, alittle lighter less amp draw with the high wind or am i going about this wrong,

BrianG · 09.18.2009, 01:40 AM

No, you have the right idea. A word about motor choice though: Feigaos are less efficient, which translates to higher temps at the end of the run, and some loss in runtime over a better motor. Also Feigaos tend to heat up more when pushed over 35k rpm. If gearing allows lower rpms like that while getting your target speed, then it's fine. If not, then a better motor (like a Neu) capable of higher rpms with fewer losses might be a better choice.

No matter what, 4s is gonna be strong. I think wheelspin will be the biggest problem unless you are careful with the throttle finger and/or dial in some punch control on the ESC...

lutach · 09.18.2009, 08:42 AM

Quote:

Originally Posted by brushlessboy16

Lutach clear your pm's

Send me an e-mail Ben.

lutach · 09.18.2009, 08:44 AM

Quote:

Originally Posted by steveo

this is why i am asking, i never had bl in the car , so and maybe a 9l and gear it accordingly for my mark does anybody see this not working

what about a 16s few rpms less, alittle lighter less amp draw with the high wind or am i going about this wrong,

If you're on a budget, you can go with a Feigao and get yourself a cheap set of 2S or 3S lipos as depending on the size of 4S you have, it might be a little on the heavy side.

SpEEdyBL · 09.18.2009, 02:51 PM

IMO, whatever you do, STAY away from feigao. The 9L on 4s can easily push my 7.5lb 1/8 scale buggy 50+ mph, but it will overheat no matter what voltage or gearing (almost the same amount geared for 30 mph on 3s). It's just that they will heat up no matter what. They are just not the right design for cars. It doesn't take much to go 50-60 mph in a touring car. On 4s a Novak 8.5 or even a 10.5 will do 50+ with ease without overheating with max speeds of at least 70 mph.

steveo · 09.18.2009, 04:24 PM

thanks guys i have owned a few fegaios and they do get hot thats for sure , i would like to get a neu or medusa but my max monster is secured in my buggy and i have a bk 9920 that will only do 2 pole, maybe i will see what hacker has to offer lately, or i can buy a heat sink with fan

02:20 AM

mild set up on 4S? On a touring car? Unless you have a ton of punch and traction control dialed in via ESC, there's nothing mild about 4S in a touring car.

LIke they said up there, might be a tad heavy, but mild will no tbe the word you're reaching for after you see her run. :)

Ran a 3S in my TC4 with an R1-Pro and a MM 5700 motor. Stock spur and a 26t pinion netted me 65mph...and could have been faster if I had a longer runway.

If you want a mild setup, do yourself a favor and save yourself some cash. Pick up a VXL system and call it a day. A VXL system should get you in the mph neighborhood that you're shooting for and it won't be eating up your diffs too bad.

Tried running a 76t spur and a 69t spur. Plenty torque with the 76t, but on 3S my diffs wouldn't last me more than several weekends. 69t spur gave me stupid speed (car was trying to lift at speed), but man oh man did she love differentials (at the rate of replacing them every other weekend).

Truth be told, I'm a bit tired of replacing diffs. I can almost do it with my eyes closed now. sigh.

steveo · 09.22.2009, 04:47 PM

considering i am going to use a higher wind motor like a 16s at 2400 kv that puts me at 35520 rpm not 57000 like what you are acheiving thats where i get mild setup and it wont have the punch when geared up to 50 mph so should have some control

littlegiant · 09.25.2009, 01:03 AM

Hi guys, just wanna give u something to ponder about.

I was using a yeah racing brushless system (60A esc + 6000kv motor) and the motor heated up to 60 - 65C. But when I switched over to a mamba max esc with the exact same motor, I noticed a significant increase in acceleration and speed (same gearing) but the weird thing is that the motor was running at 53C max no matter how I pushed it. I could attribute increase in power due to esc settings but can't explain y was the motor was running at a much lower temp. I did try different timings (similar range) on both escs but the mamba max resulted in a lower temp of the motor. I was told by someone knowledgeable that it is due to the switching freq of the fets on the MM that causes the lower temp.

So if one wishes to use low efficiency motors, the MM is probably a good choice. In 1/10 scale of course.