R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-07-2010, 03:03 PM   #10231
Tech Master
 
Join Date: Jan 2004
Location: Outside of Crook County Illinois
Posts: 1,949
Trader Rating: 2 (100%+)
Send a message via AIM to A-Ko
Default

Quote:
Originally Posted by or8ital View Post
I would love to see Tekin get rid of the turbo boost / delay. I think a better approach would be a multi-part timing curve where you set RPM ranges, amount of timing advance in that range and ramp rate for that range.

Or better yet complete dynamic timing. Not sure if dynamic timing is possible but it would be cool if the ESC could determine the load and set the optimal timing on the fly.
I don't know if they would really need ranges. If going back to the car example it could be interesting to look at it like a gearbox. Depending on your track and vehicle you could have 1, 2, 3, 4 or maybe even 5 speeds (RPM points) then have various things that can be set at those points like timing, boost, turbo for last setting, ramp and drag brakes. Although it might be helpful to have a radio in sync to those points with some sort of feedback to your finger.

I don't know if dynamic timing would work well. I keep seeing it picking a wrong value to slow you down in a race.
__________________
Jeffrey
teamgravityrc.com - motivrc.com
USVTA National Points Member #101
A-Ko is offline   Reply With Quote
Old 01-07-2010, 03:39 PM   #10232
Tech Apprentice
 
Join Date: Sep 2004
Posts: 87
Default

Im pretty sure the GM range of speed controllers, use a RPM point to when the timing ramps up....so no waiting for the madness to happen!
__________________
Craig Morgan - Tamiya 417
Slick990 is offline   Reply With Quote
Old 01-07-2010, 04:20 PM   #10233
Tech Regular
 
Join Date: Dec 2007
Location: Milton,Canada
Posts: 429
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by VRacing View Post
The last few pages have shown that many of us are coming to the same conclusions.

I run on a short track (1s 1/12 17.5 Redline) 50x25 with a sweeper entering the full length straight (Very slow chicane prior to the sweeper, motor is probably under 1000rpm). There is "room" to be on WOT for around 60' before getting off the throttle for a 180* turn. With Timing Boost @50 (1425 start & 6000 end) I had Turbo set on ramp 3 and 0.7 delay initially. I couldn't feel the Turbo kick in and got a temp of just under 160* ( I was bogging down the motor with the Turbo). I moved the delay out to 0.8 and could obviously feel/hear/see the Turbo "hit" and the temp went down to 132*. Problem is, the Turbo was "hitting" just as I was getting off the throttle for the 180* corner and it ended up pushing me out and off my desired line more than it helped me in any way. I had to feather the throttle to "reset" my delay, in order to keep my line tight.

My thought is that with Timing Boost available up to 60, there is no way a 1s 17.5 car can "use" 50* + of timing advance in less than 65' (obviously dependent on gearing and track layout). When you run on a larger layout that may be helpful information. A delay of 0.8 will "hit" the Turbo at around 60' with a Timing Boost of 50 and a Rollout of 76.00mm

On my small track, I will be running NO Turbo and it works great. I'm only able to use a little more (5*) total timing than with v200 but I have better Low and Midrange throttle response, which helps with passing and general driveability! My fast lap with v200 was 6.925sec and with v203 was 6.889.

The though thing to admit is that "extra power" does you no good if you pile into to boards - all is lost. The truth about most of us club drivers is that on a big layout, we can probably use Turbo and have a larger grin between accidents. On a small layout, there is not a huge difference from a well tuned v200 car, just a little more responsiveness. That alone is a good thing for those rare occassions when we get a solid "clean" run.

Aaron
Great write up i must say
__________________
RROL and LOU`s where only real racers race.
Weapons of choice,NT1 2010 , X-Ray T3 x 2, X-Ray X10 X-Ray all the way baby.
Futaba 4pk,gq tires,jaco tyres,odonnel fuel,T-Power batteries, tekin and nova powered.
Don`t blame the car, when you know you can`t drive.
Sponsor, me , myself and I.
nitro ho is offline   Reply With Quote
Old 01-07-2010, 04:22 PM   #10234
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

Quote:
Originally Posted by Slick990 View Post
Im pretty sure the GM range of speed controllers, use a RPM point to when the timing ramps up....so no waiting for the madness to happen!
Yes the only difference they have now is, is that the car starts in sensorles mode instead of sensord.
I'm glad that Tekin didn't do that. I have seen several guys wasting there qualifying spot in the finals because of the start.
The car had some starting problems when the soft start wasn't set right.

GM uses not as much timing as the Tekin.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 01-07-2010, 04:46 PM   #10235
Tech Elite
 
reenmachine's Avatar
 
Join Date: May 2008
Location: Studio City, CA
Posts: 2,539
Trader Rating: 26 (100%+)
Default

There's a bit of confusion here due to the fact that many commonly refer to Team Associated as AE (for Associated Electrics). I'm fairly certain that King of B Main was referring to Team Associated drivers, who would have been running the SXX Stock Spec.
__________________
Pete Waydo
2010 Big Fat Turkey Race Mini Cooper AAA Main Champion
*** currently in stasis ***
reenmachine is offline   Reply With Quote
Old 01-07-2010, 05:08 PM   #10236
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,881
Trader Rating: 97 (100%+)
Default

can someone tell me if this setup will be ok to start with,

90X40 carpet track
13.5 rubber touring
lrp x12 13.5 motor (2 dot stock timing insert)

drag brake 20
brake strength 100
timing 30
start roughly 2500
end roughly 7000

Last edited by LOW ET; 01-07-2010 at 06:49 PM.
LOW ET is offline   Reply With Quote
Old 01-07-2010, 05:27 PM   #10237
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

the setup looks good.
Set the brake strength lower. The brakes with the v203 are very good. I use now 70 brake.
The boost i would set a bit higer for some more top speed. 45 to 50. As you do so, set your end RPM also higher. Around the 13000. Start rpm a bit higher. 3000-4000.
Gear a bit lighter than you did with the v200 and temp after a mint or 2. As the motor stays cool, you can gear a bit heavier.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 01-07-2010, 05:29 PM   #10238
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,881
Trader Rating: 97 (100%+)
Default

Quote:
Originally Posted by mikky32 View Post
the setup looks good.
Set the brake strength lower. The brakes with the v203 are very good. I use now 70 brake.
The boost i would set a bit higer for some more top speed. 45 to 50. As you do so, set your end RPM also higher. Around the 13000. Start rpm a bit higher. 3000-4000.
Gear a bit lighter than you did with the v200 and temp after a mint or 2. As the motor stays cool, you can gear a bit heavier.
i was understanding the x12's don't like timing that high?

would i need to stretch the rpm out to 13,000 for a 90 foot straight?
LOW ET is offline   Reply With Quote
Old 01-07-2010, 05:35 PM   #10239
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

as you set your top rpm higher you spreat the timing and the motor can handle more timing.
Set your rpm range big and temp the motor after each run anc as the motor stays cool ad some boost.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 01-07-2010, 05:35 PM   #10240
Tech Elite
 
tandman's Avatar
 
Join Date: Feb 2004
Location: airdrie
Posts: 2,966
Trader Rating: 6 (100%+)
Send a message via Yahoo to tandman
Default

Hey guys, just trying to figure out what I need for touring car stock rubber tire. To run the latest software with all the boost and ramp up with the timing ranges, will the Tekin RS work or do I need the RS-Pro? Will there be a differnece between the 2 or is the pro just better for mod?
Thanks
__________________
Dwayne Flodell
Team Mad Scientist
-When you need mad rip.....call the Mad Scientist
Team Sweepracing-R1 Wurks Team Canada
tandman is offline   Reply With Quote
Old 01-07-2010, 05:45 PM   #10241
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

Quote:
Originally Posted by tandman View Post
Hey guys, just trying to figure out what I need for touring car stock rubber tire. To run the latest software with all the boost and ramp up with the timing ranges, will the Tekin RS work or do I need the RS-Pro? Will there be a differnece between the 2 or is the pro just better for mod?
Thanks
The RS is good for tc stock. No problem with the V203.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 01-07-2010, 05:50 PM   #10242
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,761
Default

I still find the brakes to be a bit of a problem once the timing has ramped up a bit, and non-existant once the turbo has come in.

On small carpet tracks this isn't really an issue as the speed never gets high enough to warrant very hard braking or turbo.

I race on a track that would appear to be a bit bigger than the Speedworld track that Randy has mentioned.

Skiddins

__________________
Xray T4'18, T4'14 (Wet Car)
Xray X12 2018
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RCDisco.co.uk
Skiddins is offline   Reply With Quote
Old 01-07-2010, 05:55 PM   #10243
Tech Lord
 
20 SMOKE's Avatar
 
Join Date: Dec 2003
Location: HVR_ WEEKI WACHEE FL
Posts: 10,299
Trader Rating: 101 (100%+)
Default

what motor skidd
__________________
Jamie W
*Team Tekin*Tekno-rc*DE Racing*AKA*DDHRC*
20 SMOKE is offline   Reply With Quote
Old 01-07-2010, 06:10 PM   #10244
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

i used the turbo ad his max and my brakes worked a lot better than before but it was on a carpet track so i don't now as it is on higher speeds.

Nice track.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 01-07-2010, 06:42 PM   #10245
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,881
Trader Rating: 97 (100%+)
Default

Quote:
Originally Posted by mikky32 View Post
as you set your top rpm higher you spreat the timing and the motor can handle more timing.
Set your rpm range big and temp the motor after each run anc as the motor stays cool ad some boost.
i just made some adjustments according to your input and the motor is like a BEAST now
LOW ET 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 07:07 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