R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 03-20-2011, 05:07 PM   #20026
pmc
Tech Adept
 
Join Date: Oct 2008
Location: Pinhal novo - Portugal
Posts: 173
Default

Quote:
Originally Posted by Nilks View Post
In my experience, power-drop in the middle of the heat, is because of too tall of a gearing or bad batteries.


Hello Nilks
thanks to the answer.

we have new Lipos and two different brands.

we tried various final drive ratios and the motors was always cool in the 65 to 75 degrees celscius.

Best regards:
Pedro Silva
pmc is offline   Reply With Quote
Old 03-20-2011, 05:57 PM   #20027
Tech Adept
 
Join Date: Jan 2011
Posts: 189
Default

i am experiencing funny behaviour from my rs pro.
i am using a spektrum receiver and transmitter.

the problem is that if i go 100% throttle and then i slowly back off until neutral, the ESC remains stuck at around 10% throttle. So even with my trigger on neutral the car moves forward. If i slightly touch the brakes it stops.

Is there anything i can do?

i am using a custom profile in sensored mode.

min throttle is 10%
neutral width is 30 (i just realised i can try increasing this just in case it fixes it but i am currently charging batteries.)
omegaf is offline   Reply With Quote
Old 03-20-2011, 07:25 PM   #20028
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

pmc, what are your timing settings? I find a bit too much timing can cause this, especially with the lrp motors.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 03-21-2011, 02:54 AM   #20029
Tech Rookie
 
Join Date: Apr 2010
Location: South Africa
Posts: 9
Talking

Hi, guys, anyone have a excellent setup for a X12 17.5 touring car for a asphalt track with a 22m straight and fdr to start. Just bought tekin and loaded v2.12 software on it. all help would be gladly appreciated.

Thanks
2 Bar Boost is offline   Reply With Quote
Old 03-21-2011, 08:53 AM   #20030
Tech Elite
 
M-Technic's Avatar
 
Join Date: Sep 2007
Location: Palm Beach, FL
Posts: 2,562
Trader Rating: 15 (100%+)
Default

If anyone is interested I ran mod with a non-pro RS and a 7.5t Trinity Nemesis last weekend. Here is my setup. It was running no problem with 4.5t's and had more rip. Track was very large and flowing, I'd say a 175ft straight.

T3 2011
Nemesis 7.5t
RS with v212
FDR: 8.1
Motor timing: +5*
start RPM: 6,000
end RPM: 32,000
timing boost: 46
turbo: 10
turbo delay: 0.3
turbo ramp: 2
throttle profile: 2
minimum throttle: 5

Temps were 180-190f after 5 minutes. Ambient temp was 85* and the track surface was 115-120*. The RS showed 3 to 4 lights for the temp.
__________________
RCAmerica | Xray | Hudy | Radiopost | Speed Passion USA | Trinity | P3 Graphics
M-Technic is offline   Reply With Quote
Old 03-21-2011, 09:21 AM   #20031
Tech Lord
 
20 SMOKE's Avatar
 
Join Date: Dec 2003
Location: HVR_ WEEKI WACHEE FL
Posts: 10,299
Trader Rating: 101 (100%+)
Default

did you try 0 motor timing that may have dropped the temp down 10-15
__________________
Jamie W
*Team Tekin*Tekno-rc*DE Racing*AKA*DDHRC*
20 SMOKE is offline   Reply With Quote
Old 03-21-2011, 09:42 AM   #20032
Tech Elite
 
M-Technic's Avatar
 
Join Date: Sep 2007
Location: Palm Beach, FL
Posts: 2,562
Trader Rating: 15 (100%+)
Default

Quote:
Originally Posted by 20 SMOKE View Post
did you try 0 motor timing that may have dropped the temp down 10-15
The timing ring was stuck
__________________
RCAmerica | Xray | Hudy | Radiopost | Speed Passion USA | Trinity | P3 Graphics
M-Technic is offline   Reply With Quote
Old 03-21-2011, 10:09 AM   #20033
Tech Lord
 
20 SMOKE's Avatar
 
Join Date: Dec 2003
Location: HVR_ WEEKI WACHEE FL
Posts: 10,299
Trader Rating: 101 (100%+)
Default

was it Potters
__________________
Jamie W
*Team Tekin*Tekno-rc*DE Racing*AKA*DDHRC*
20 SMOKE is offline   Reply With Quote
Old 03-21-2011, 11:01 AM   #20034
Tech Elite
 
M-Technic's Avatar
 
Join Date: Sep 2007
Location: Palm Beach, FL
Posts: 2,562
Trader Rating: 15 (100%+)
Default

Haha, it was Felix "more power" Law's.
__________________
RCAmerica | Xray | Hudy | Radiopost | Speed Passion USA | Trinity | P3 Graphics
M-Technic is offline   Reply With Quote
Old 03-21-2011, 02:31 PM   #20035
pmc
Tech Adept
 
Join Date: Oct 2008
Location: Pinhal novo - Portugal
Posts: 173
Default

Quote:
Originally Posted by wingracer View Post
pmc, what are your timing settings? I find a bit too much timing can cause this, especially with the lrp motors.
Hello

Boost 45
Turbo 14

Timing on motor is 4 dot insert.



Best regards
Pedro silva
pmc is offline   Reply With Quote
Old 03-21-2011, 03:37 PM   #20036
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by pmc View Post
Hello

Boost 45
Turbo 14

Timing on motor is 4 dot insert.
Hm, that's not too awfully high. You could try backing it down a bit (40/10 maybe) but unless you are bringing the timing in way to quick/early, that shouldn't be the problem.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 03-21-2011, 03:56 PM   #20037
pmc
Tech Adept
 
Join Date: Oct 2008
Location: Pinhal novo - Portugal
Posts: 173
Default

Quote:
Originally Posted by wingracer View Post
Hm, that's not too awfully high. You could try backing it down a bit (40/10 maybe) but unless you are bringing the timing in way to quick/early, that shouldn't be the problem.
Hello

Thanks to the help i will test this (40/10).

To see if solve the problem.

Best regards:
Pedro Silva
pmc is offline   Reply With Quote
Old 03-22-2011, 06:09 AM   #20038
Tech Fanatic
 
jrxs-r's Avatar
 
Join Date: May 2007
Location: Perth, Western Australia
Posts: 831
Trader Rating: 11 (100%+)
Default

Quote:
Originally Posted by Mr. MR4 View Post
I am currently using these settings in 1/10 TC 2s lipo:

Gearing - 5.8
Motor Timing - 1 notch + timing (GM13.5 - 12.3mm rotor)
Throttle Profile - 4
Boost - 48
Start RPM - 2850
End RPM - 12000
Turbo - 13
Turbo Delay - 0.16
Ramp - 2
Throttle Minimum - Max

The issue I have is that from 1% to 50% throttle on my transmitter, the power delivered to the motor remains the same. After 50% the boost kicks in and at 100% throttle the turbo kicks in.

Is there any way I can get the 1% to 50% throttle to increase gradually?

Thanks
First off I would recommend decreasing you throttle minimum to around 0-5%, then increase your RPM range from let's say 7000 to 22000. Drop your motor timing to neutral or in the negative. Also, recalibrate the ESC to your TX again.

Try that and let us know.
__________________
Cheers,
Zack
___________________________________________________________________________
Proudly Sponsored by Stanbridges Hobbies
Serpent S411
jrxs-r is offline   Reply With Quote
Old 03-22-2011, 11:45 AM   #20039
Tech Master
 
Join Date: Apr 2008
Location: Christchurch, NZ
Posts: 1,063
Default

Change your throttle profile to 3, increase your end rpm, and possibly reduce your amount of timing.
Sounds like the motor is struggling with a the timing being thrown at it, and by the time it gets up to speed, your full throttle and it's throwing more timing at it!
__________________
Agama A8 Evo | GRP .21 | Spektrum | Savox

My car just hit 88mph. I hope it comes back soon....
JR007 is offline   Reply With Quote
Old 03-22-2011, 11:53 AM   #20040
Tech Regular
 
Mr. MR4's Avatar
 
Join Date: Oct 2001
Location: Malta, EU
Posts: 297
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by JR007 View Post
Change your throttle profile to 3, increase your end rpm, and possibly reduce your amount of timing.
Sounds like the motor is struggling with a the timing being thrown at it, and by the time it gets up to speed, your full throttle and it's throwing more timing at it!

Thanks for all the replies.

Just changed settings as recommended and already feels much better. Will have to test it at the track next and see how it goes.
__________________
Xray T4'16 HobbyWing Xerun 120A V3.1
Xray X1'16 HobbyWing Justock
Yokomo R12C3 HobbyWing Xerun V3.1
Mr. MR4 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tekin Redline RS Sensored ESC and motors, opinions for offroad? Cain Electric Off-Road 4230 06-07-2015 04:38 PM
Sensored vs. Sensorless lemansracer Electric On-Road 71 02-14-2009 03:19 AM
New Tekin Redline Sensored Motors are Roar Legal! Randy_Pike Electric On-Road 3 08-05-2008 02:08 AM
Tekin Redline Sensored 10.5 HUCKMAN Electric On-Road 6 07-15-2008 08:50 PM
sensored vs sensorless bprocket Rookie Zone 5 05-16-2008 09:38 AM


Tags
v203, vegas 2.0


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 03:52 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net