micro racing stock tricks??

racer_dan · 03-05-2007, 03:01 PM

k, so im into racing micros for the winter and ive been getting pretty good but ive noticed some other racers are finding alot more power out of their micros. i am pretty good with chassis set ups and i know the chassis is as fast as it can get but i feel that there maybe a legal mod done to the electronics to make them go faster. everyone runs the same 180 size motors but some differ drastically. now i dont just think a really proper break in can give you 7-10 laps more than others. ive played with gearing to all extents, and mesh, bearings, weight, batteries, etc... is there a trick to getting more power out of a stock 180 motor that i dont understand? different capacitors maybe? or is there a speedo hack? electronics really are not my area but i really wanna get my car back up in full power. and im completely drained for ideas.

thanks

Bermbuster · 03-05-2007, 03:29 PM

batteries and the way you charge them....
also traction management

Mini_Me · 03-05-2007, 05:36 PM

Those that have tweaked their motors usually are doing so at the life of the motor.

Do you
-clean the motor and relube the bushings after every run?

How do you break in your motors?
-Do you use a passive means where another motor spinning the opposite direction spins the motor in question through a coupler?
-Running the motor at a very low voltage at upping the voltage over time?
-Dropping into water?

What tips do you use:
-Breaking in the bushings with a VERY thin mixture of comm drops and simichrome run for a minute then throughly clean.
-Heatsink?
-Forward only esc with a 3 wire setup for more direct power to motor?
-Repeaking your batteries just before the race?
-Adding a power capacitor to your esc line in from the battery to help with punch?
-Adding a schottky diode on the motor to a forward only esc for better breaking an less com arcing.

Bobby Z · 03-05-2007, 06:20 PM

You can not forget the most important factor of stock racing....corner speed. Your car has to rotate through the corners with little to no effort. You DON'T want the car to be too loose as you need to be aggressive as well. Hard to explain in a short paragraph but once you get the car handling well enough to carve the corners without loosing any momentum you will pick up a lot of time.

Also the stock motors work better with more run time on them imho. A few com drops also help.

Bob

chicagokenji · 03-06-2007, 09:10 AM

what kind of 1/18th scale racing are you doing? What kind of track?

racer_dan · 03-06-2007, 01:30 PM

i race on ozite if anyone wanted to know

racer_dan · 03-06-2007, 01:32 PM

im racing an m18 and it hooks up really well and tight, most of us at our track run right up togeather really well but 1 or 2 drivers who come have a huge speed advantage of like 7 laps on the same lines and beating all best lap times by 2 or 3 seconds. one guy was caught recently by using a 180 motor from eflite, for the blade cx heli. its the same motor number as the rs4 hpi motors but has a huge power difference, the only downsize to them is they burn up really fast,, like 4 minutes fast

i choose to break in my motors by oil or water methods depending on the aggressiveness of the racing and gearing im running.

does a forward only speedo can give more boost, w/ 3 wire hookup? and what is a power capacitor cause that sounds interesting and where can i get one?

Nexus · 03-06-2007, 01:35 PM

Quote:

Originally Posted by racer_dan

im racing an m18 and it hooks up really well and tight, most of us at our track run right up togeather really well but 1 or 2 drivers who come have a huge speed advantage of like 7 laps on the same lines and beating all best lap times by 2 or 3 seconds. one guy was caught recently by using a 180 motor from eflite, for the blade cx heli. its the same motor number as the rs4 hpi motors but has a huge power difference, the only downsize to them is they burn up really fast,, like 4 minutes fast

i choose to break in my motors by oil or water methods depending on the aggressiveness of the racing and gearing im running.

does a forward only speedo can give more boost, w/ 3 wire hookup? and what is a power capacitor cause that sounds interesting and where can i get one?

Man if guys are winning by 7 laps they definitely are doing something different or very odd! Is this a stock class you are running or some type of Open Class?

7 laps is pretty ridiculous unless they are suuuper good and the rest of the field is just mediocre or new.

Mini_Me · 03-06-2007, 09:24 PM

Quote:

Originally Posted by racer_dan

does a forward only speedo can give more boost, w/ 3 wire hookup? and what is a power capacitor cause that sounds interesting and where can i get one?

Yes, because their is less power lost going through the esc. Contrary to popular belief, electrons flow from positive to negative. Now, how much of a boost is arguable.

Power capacitors act like miniature batteries. When you punch the throttle, there is a slight drop in power normally with the huge sudden amperage draw. A capacitor helps to keep the power going to the motor consistent under the loads. It "recharges" itself when the car is running. All the brushless escs on the market have one installed.

racer_dan · 03-07-2007, 12:25 PM

yea its a stock class, 180 size, 5 cell, average class but i just find it funny the same persons keep running away from everyone and on a straight the speed is really noticable but i asked a little and we run the same gearing and everything else is pretty close. i put a quantom sport in my rc18t last night and noticed quite a power jump and bite coming out of the corners with it so i might try that in my car and see how she drives.

Bobby Z · 03-07-2007, 12:46 PM

Quote:

Originally Posted by Nexus

Man if guys are winning by 7 laps they definitely are doing something different or very odd! Is this a stock class you are running or some type of Open Class?

7 laps is pretty ridiculous unless they are suuuper good and the rest of the field is just mediocre or new.

Seven laps on a decent size track is not all that extreme. I just ran at a micro trophy race on the weekend and my TQ was five laps ahead of 3rd qualifier. In the main (10 minutes) the top two cars were easily seven laps ahead of the 3rd and 4th place car.

There are many contributing factors to this but putting speed and chassis preparation aside the other big, big, big, huge factor is consistency. I was able to run 74 laps in my race and all my laps were between 7.7 and 8.5 with one lap at 9.5 seconds. That one lap is what cost me the win as I finished three seconds behind the winner. This could easily be seen in the average lap times. The top two drivers were 8.1 and the 3rd place driver was 8.9 or something similar. How many times do you think the 3rd place car crashed? two, three, maybe four times. Those all rob you time and laps.

Drive clean and make sure the drivetrain in your car is smooth, bearings are well oiled, motor is broken in, gearing and roll out is comparable to the faster cars and your car is setup for maximum corner speed. This will help you keep up the momentum in the corners so you barely need to lift off the throttle and can keep the car rolling. Any time the car has to slow down considerably and stall in the corners you are loosing time.

steelhawke · 03-10-2007, 01:24 PM

I had the same problem when I tried racing my x-mod and mini-z. Even with carefully going over the car a making everything work perfect it was still not as fast as some guys stuff. So I did what alot of curious slow guys do, I got nosey

. I noticed one guy was running a hidden battery in the body cover, since the stock are to run 4 cells only

! I quickly let everyone know what he was doing LOUDLY

! One guy "kid", had a x-mod that was ripping down the straights so I asked to see it (kindly). Gee everything was bone stock like mine, so it seemed. He later told me the motor was out of a

"spinbrush"

electric toothbrush with the stock motor stickers slapped on it. I found this young guy to be very creative and cleaver. I reminded him that he was cheating since he really wasn't running the same motors as everyone else. I never told anyone, since he could use it mod class. He looked sad and kinda ashamed but he replaced the motor. I guess my ranting is basically to make me feel better. But keep in mind rarely, sometimes the guys with the killer fast set-ups night be bending the rules. my 2 cents sorry for the ranting guys............but I feel better

geeunit1014 · 03-10-2007, 08:01 PM

for stock, drivetrain freeness is key. a freer drivetrain will yeild faster laptimes, and better effeicincy. for the motor, run the upgrade motor for the hobbyzone mini mauler. motor is faster than hpi motors, but doesnt burn up like the cx motors do. most i got out of one of those is 6 packs. crazy fast, but it dies

ffiB · 03-11-2007, 10:53 AM

What kind of motor are you running Dan? We have found that the stock XRay motor is about the best. And like the others have said, keep the drivetrain free. Keeping the wiring as short as possible doesnt hurt either.

twan · 03-11-2007, 11:40 AM

xray motor?? lol i been trying to find a stock xray motor for about 5 months now. yes they seem to be the best but i know what he is talking about because i had the same problem with stock class. i got the best of everything got the car dialed it looks like its on rails but some people just walk away from you. i just changed the esc to th lrp qc2 & is didnt help lol