racing_jason

hey guys i have a problem some where! and i really need help i have a 17.5 system from tekin and im running a finnal drive of 3.8, first off when i had a stock motor on the same track i ran 6.6? i have the timing on the can at 12 and in the esc its at 100 what am i doing wrong?
Thanks Jason

ChrisP

iTrader: (11)

You will need to run a different ratio with brushless than you did with brushed?

What is it doing that makes you think it is wrong?

Randy_Pike

iTrader: (6)

First "problem" is that the motor timing is ony at 12 degrees. Turn that all the way up.

What esc are you using?

Gearing will be different brushed vs. brushless everytime.

Joe: What motor are you using? Have you verified your sensors via the RS led tree? Cogging on a 13.5 generally leads to a bad sensor harness(you chaged it) and or bad sensor.

racing_jason

i have a tekin RS Pro that im using and i have it set at 95% timing. and what would be a good point to go to on motor timing?

Randy_Pike

iTrader: (6)

A 17.5 motor likes almost all of the timing you can give it. So start out in sensored only mode, maximum motor timing on the motor. Gear accordingly.

Most of the team guys run 100 on the timing bar just in case of a sensor harnes failure during a run. If it were to come unplugged we are one of the only esc's that continues to drive the motor.

TeckLancer

iTrader: (16)

can i turn the timing up ona speed passions and the rs pro esc.thats the combo i have

davepull

as long as the motor has adjustable timing YES

joech

iTrader: (40)

I was trying the Duo 13.5 and I tried 2 different sensor wires and it made no different. I actually reloaded the profile last night and set it to senor only and hopfully it fixed my problem. I ran the car last week with the Redline 13.5with sensor only mode without any cogging.

Then I tried the Duo 13.5 with Dual mode and cogged badly. I will try it out tonight and let you know what the result is.

reenmachine

iTrader: (26)

The Speed Passion doesn't have adjustable timing. I am running a SP 13.5 -- I have it in hybrid mode with the ESC timing at 90% and it is crazy fast.

TRF415boy

If it works fine with another motor and the sensor cables are out of the problem, then it's your motor mate. HAve you done what randy told you and checked the led tree? Basically if you have the speedo and radio turned on, and left on neutral, then turn the motor via the wheels if the motor's in the car), then you'll have the top 3 leds on the speedo dimly lit up alternatively to show that each sensor is being seen by the speedo. If you're missing one, then the speedo will automatically switch to sensorless and that's probably why yours is cogging. Have you run the motor in the wet? Hall sensors don't like humidity you see...

Chad M

Hi guys, what roll out would be best for a 12th scale on a track that has about low 8 second lap times, some guys have tried around 80mmpr but i felt to sluggish in the infield with that, I have the tekin 17.5 and rs speedo and the motor timing will be at 30 along with the speedo just in case. Is there a roll out that the tekin motor will realy perform well at? also what kind of temp is ideal for max power?

Thanks

mangoman

iTrader: (11)

Dont know about 4 cell, but everyone i know running an RS with a 17.5 in 6 cell touring is using 100 timing. Obviously keep an eye on your motor temps if you are gunna crank the timing up that far in one go.

tellan

After various communications and help from Randy my Tekin RS now rocks.

Motor Nosram 10.5 bl roll out 57 mm timing cranked as high as possible.

Drag brake 50
brake 60
neutral 0
throttle 3
timing 90
sensored yes

Car was fast and smooth and duration not a problem.Large track 14/15 sec laps 8 min racing.

1armed1

iTrader: (79)

I run on 2 different tracks with the Rs/Redline 17.5 combo that the lap times average from low 8's on the one track to high 9's on the other.

For the low 8's track start at 70mm or 2.75"
For the track with high 9's I ran a 3.07" or 77.3mm rollout.

If you have the hotwire give these settings a try.

Sensored only
Timing at 90
Timing on the motor turned all the way up.
Throttle profile 4 or 5 depending on you driving style.
The set the brake strength and drag brake to your liking.

later
Dayton

acyrier

iTrader: (8)

I thought if you had "sensored only" the timing on the ESC didn't matter. I've heard some say, the only reason you would want to put the timing on the esc at 100..was incase the sensor plug came undone. Is that not the case?