R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 04-18-2009, 11:41 PM   #3376
Tech Fanatic
 
doriftu's Avatar
 
Join Date: May 2007
Location: Malaysia
Posts: 838
Trader Rating: 11 (100%+)
Default

My esc goes dead by itself. No LEDs on the ESC. Servo went dead as well. It comes back on out of the sudden again.

I have checked and cleaned the receiver, checked the battery connection but still dont know the root cause.

Can someone shed some light?

FYI, i am using 3PK with spektrum micro rx.

Thanks in advance.
__________________
six-shifter.blogspot.com
supercharged-e36.blogspot.com
doriftu is offline   Reply With Quote
Old 04-19-2009, 12:03 AM   #3377
Tech Elite
 
Trips's Avatar
 
Join Date: Aug 2001
Location: 360 Speedway
Posts: 2,251
Trader Rating: 16 (100%+)
Default

first thing I'd check is the plug... make sure all three wires are fully seated in the black plastic plug. Sometimes they can work loose and then make intermittent contact with the pins in the receiver.

If that's not it, check the wires where they're soldered to the positive and negative posts... a bad solder joint there can cause intermittent shutdowns.
__________________
MARSHAL!!
Trips is offline   Reply With Quote
Old 04-19-2009, 04:12 AM   #3378
Tech Adept
 
Join Date: Nov 2005
Posts: 223
Trader Rating: 1 (60%+)
Default

email me the lastest software

[email protected]
thank you
cico is offline   Reply With Quote
Old 04-19-2009, 10:14 AM   #3379
Shop Owner
 
nnick's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Cheapest prices in Europe ;)
Posts: 1,342
Trader Rating: 1 (100%+)
Send a message via ICQ to nnick Send a message via MSN to nnick Send a message via Yahoo to nnick Send a message via Skype™ to nnick
Default

Quote:
Originally Posted by khaledome View Post
i have the hotwire it is no problem,

our track details are here http://www.bumodgp.com/pist.asp

total track length is 350 (1148 feet) meters , we have 2 straight first 40 meters (131 feet) and second 70 meters (229 feet)
We race on similar size track and we end up with ratio of around 7-7.3!! Maybe you should consider trying that low
__________________
Nikolakopoulos Nick
RC RING

The #1 source for all your electric needs www.rcring.eu

Enjoy RCing....
R/C Tech #82
IRT #123

Don't practice until you get it right. Practice until you can't get it wrong

Team Xray T4'17, Team Xray X10'18, TOP Racing Rebel
nnick is offline   Reply With Quote
Old 04-19-2009, 10:19 AM   #3380
Tech Adept
 
Join Date: Jun 2008
Posts: 107
Trader Rating: 2 (100%+)
Default

but the thing is we use lipo 7.4 v and i will use 4 turn motor, don't you think that it will be very fast, i am scared to damage the esc.
khaledome is offline   Reply With Quote
Old 04-19-2009, 10:28 AM   #3381
Tech Champion
R/C Tech Elite Subscriber
 
Join Date: Oct 2008
Location: Minnesota
Posts: 7,377
Trader Rating: 520 (100%+)
Default

Quote:
Originally Posted by doriftu View Post
My esc goes dead by itself. No LEDs on the ESC. Servo went dead as well. It comes back on out of the sudden again.

I have checked and cleaned the receiver, checked the battery connection but still dont know the root cause.

Can someone shed some light?

FYI, i am using 3PK with spektrum micro rx.

Thanks in advance.
I have been having a similar problem, and it turned out to be a bad bullet connector solder joint. It would work for a whole heat then nothing, then work again, finally came totally apart when disconnecting battery.
flame56mx is offline   Reply With Quote
Old 04-19-2009, 10:47 AM   #3382
Tech Master
 
2wdrive's Avatar
 
Join Date: Mar 2009
Location: The Netherlands
Posts: 1,316
Default

Quote:
Originally Posted by khaledome View Post
but the thing is we use lipo 7.4 v and i will use 4 turn motor, don't you think that it will be very fast, i am scared to damage the esc.
I drive an rs pro with a novak 4.5t with lipo's in a pro10.
What you really need to do with mod motors is to put a fan on the chassis that is blowing at the posts of the esc. The posts will get very hot and so will the wires and cap on the posts and everything they connect to. Even the motor wires get hot.

Not something you want to be doing for a long time that is for sure.

When the esc gets hot i noticed a drop in performance. You really need the fan.

Next week i will have a race and will see if the fan is doing it's job.
2wdrive is offline   Reply With Quote
Old 04-19-2009, 12:08 PM   #3383
Tech Adept
 
Join Date: Jun 2008
Posts: 107
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by 2wdrive View Post
I drive an rs pro with a novak 4.5t with lipo's in a pro10.
What you really need to do with mod motors is to put a fan on the chassis that is blowing at the posts of the esc. The posts will get very hot and so will the wires and cap on the posts and everything they connect to. Even the motor wires get hot.

Not something you want to be doing for a long time that is for sure.

When the esc gets hot i noticed a drop in performance. You really need the fan.

Next week i will have a race and will see if the fan is doing it's job.
i think so too,
also randy said the same thing and send a picture to how to place fan on tha chasis. please inform when you put the fan, if it's doing its job.
also my concern is we are doing the races openair, and in turkey we have very high temperatures in summer time.
khaledome is offline   Reply With Quote
Old 04-19-2009, 02:18 PM   #3384
Tech Champion
 
Join Date: Nov 2001
Location: Hawaii, USA
Posts: 7,186
Default

Has the brakes been worked on in this build? With my old 3PJS controller I've always struggled having enough brakes but in this last build the brakes seem a lot stronger just during the ESC setup. I'll be testing the car in a few hours so will see if the brakes are indeed stronger.
InspGadgt is offline   Reply With Quote
Old 04-19-2009, 03:31 PM   #3385
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

How light must i gear my car? i started with 4,7 with full boost.
Now i drive 5,4 with 23 boost and i feel that i can go lighter.

I'm now faster than i was in the race so i think that next race will be even better and my lap times will go even faster.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 04-19-2009, 04:10 PM   #3386
Tech Elite
 
reenmachine's Avatar
 
Join Date: May 2008
Location: Studio City, CA
Posts: 2,539
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by mikky32 View Post
How light must i gear my car? i started with 4,7 with full boost.
Now i drive 5,4 with 23 boost and i feel that i can go lighter.

I'm now faster than i was in the race so i think that next race will be even better and my lap times will go even faster.
Who knows. I keep gearing shorter and shorter and it keeps getting faster and faster.
__________________
Pete Waydo
2010 Big Fat Turkey Race Mini Cooper AAA Main Champion
*** currently in stasis ***
reenmachine is offline   Reply With Quote
Old 04-20-2009, 09:58 AM   #3387
Team Tekin
 
Randy_Pike's Avatar
 
Join Date: Nov 2007
Location: Norcal
Posts: 9,702
Trader Rating: 6 (100%+)
Send a message via Yahoo to Randy_Pike
Default

Don't be scared to gear down lower than you may think it "right."

We did some testing at Speedworld Raceway where the Reedy Race of Champions is being held. IT has a 160' straight. We were using a radar gun to measure top speeds also. We found that we could drop from what the "normal" fdr of 5.0ish was all the way down to 5.8 depending on the timing setting.

For the record, highest top speed posted was a Tekin RS Pro and Tekin Redline with a 13.5 at 39mph(Jason Moberly). We didn't stay with this setup as it did get hotter than we'd like. We did drop gearing substantially and found a good setup for this track.

Point is that every track is different, layouts are different. Lap times are what counts.
__________________
"Things may come to those who wait, but only the things left by those who hustle." Abraham Lincoln

Tekin,Protek,A-Main Hobbies,JConcepts,Avid RC,Yokomo,MIP,SikLidz,FactoryRC, www.randypikerc.com
Randy_Pike is offline   Reply With Quote
Old 04-20-2009, 10:03 AM   #3388
Tech Rookie
 
Join Date: Feb 2005
Location: uk southampton
Posts: 13
Default

Randy you have pm!
Gray is offline   Reply With Quote
Old 04-20-2009, 10:13 AM   #3389
Tech Adept
 
Join Date: Jun 2008
Posts: 107
Trader Rating: 2 (100%+)
Default

randy i you got emails ,pm
desperately need the new software...
khaledome is offline   Reply With Quote
Old 04-20-2009, 10:36 AM   #3390
Team Tekin
 
Randy_Pike's Avatar
 
Join Date: Nov 2007
Location: Norcal
Posts: 9,702
Trader Rating: 6 (100%+)
Send a message via Yahoo to Randy_Pike
Default

Guys I'm working on it right now. I've got a few hundred emails this morning so bear with me please.

Thanks
__________________
"Things may come to those who wait, but only the things left by those who hustle." Abraham Lincoln

Tekin,Protek,A-Main Hobbies,JConcepts,Avid RC,Yokomo,MIP,SikLidz,FactoryRC, www.randypikerc.com
Randy_Pike 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 08:03 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net