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Old 08-26-2010, 10:37 AM   #16831
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Originally Posted by ira View Post
Need a little help.

One race weekend during the begging of the main ( about 2 minutes in ) 3/4 down the streight at full throttle all of a sudden the car acted like I went from full throttle to full brake. I tried the throttle and nothing happens, but the steering worked, this happened twice during the main.

The next race weekend the car held full throttle and would not stop ( run away ) the steering was fine but no matter what I tried to do with the throttle ( brake or neutral ) the car still was at full throttle. The only way I was able to stop the car was to drive it into the outside wall and turn the power switch off on the speedo.

I'm using a Venom 13.5 motor, timing set at 0 deg on the can, speedo timing set at 45 deg and turbo set at 15. the motor is coming off the track at 155 deg F.

Any suggestions,
Thanks
This is the sort of problem I have been having.
I now won't run the RS without a booster.

I have also swapped my main ESC to a Black Diamond.

http://www.rctech.net/forum/electric...esc-issue.html
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Old 08-26-2010, 11:20 AM   #16832
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I was wondering if anyone has tired different capacitor setups with their Tekin RS with a 17.5. I am running a Duo2 17.5 and also a Tekin Redline 17.5. I usually run on two different tracks 110ft x 50ft and 85ft x 50ft. I know that LRP makes a capacitor for single cell and I have read that people are using multiple Tekin caps. What are the pros vs cons running different cap setups?
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Old 08-26-2010, 11:43 AM   #16833
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Originally Posted by avink007 View Post
I was wondering if anyone has tired different capacitor setups with their Tekin RS with a 17.5. I am running a Duo2 17.5 and also a Tekin Redline 17.5. I usually run on two different tracks 110ft x 50ft and 85ft x 50ft. I know that LRP makes a capacitor for single cell and I have read that people are using multiple Tekin caps. What are the pros vs cons running different cap setups?
Multiple caps?! Interesting...maybe Randy Pike can chime in.
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Old 08-26-2010, 12:15 PM   #16834
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I was advised with my RS to run 2 caps when i was getting close to the motor limit to help the speedo

I have run 2 since then on without issues
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Old 08-26-2010, 12:34 PM   #16835
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The caps are only required to regulate the power flow when there are large spikes in power useage that the esc/battery can't provide as fast as the motor wants it. Low turn mod motors can do this, 17.5's can't. I doubt there would be any recogniseable increase in performance by either changing or adding caps on a 17.5 setup.
BTW, my definition may not be perfect, but it's the gist, i'm no electronics engineer
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Old 08-26-2010, 01:01 PM   #16836
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Originally Posted by jhock View Post
Turn turbo back down to 10, never run it above 10.
I think you need to justify that. I have never run turbo below11 so I could easily say never run it below 11. My recommendation would be not to run a 10.5 with a start rpm below 10K, which I could turn in to "neve", but you run start rpm much lower so it seems.

I just think if one is going to use such a strong assertion there needs to be a basis for it- beginners read that sort of stuff and take it as the law.

No offence; just a question of forums and care need on English used
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Old 08-26-2010, 02:07 PM   #16837
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Originally Posted by avink007 View Post
I was wondering if anyone has tired different capacitor setups with their Tekin RS with a 17.5. I am running a Duo2 17.5 and also a Tekin Redline 17.5. I usually run on two different tracks 110ft x 50ft and 85ft x 50ft. I know that LRP makes a capacitor for single cell and I have read that people are using multiple Tekin caps. What are the pros vs cons running different cap setups?
I run the Speed Passion 4 barrel high performance cap. No noticeable difference in on-track performance, but it does run my fan for a good 5+ seconds after I unplug the battery
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Old 08-26-2010, 02:25 PM   #16838
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Caps that can power a fan for 5 seconds after being disconnected from power are the OPPOSITE of what we're looking for. We want a low esr cap that has the ability to soak up and release the energy quickly therefore stabilizing the battery line. A cap(s) that takes that long to discharge isn't helping your cause.

Two of the TT3520 caps will not really gain power but it can help keep things running cooler. We reccomend this for most of our guys running low turn mod motors like 3, 4 and 5 turn. This is especially helpful in 1s applications because of the ripple current.

Adding a 2nd cap will not hurt anything. I do reccomend using a pair of the SAME cap, don't mix and match.
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Old 08-26-2010, 07:34 PM   #16839
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Default 21.5

21.5 Tekin Redline w/Default timing on motor
(well what ever they get shipped with)
Boost 40
Turbo max
Brakes 100
Start 4678
End 12500
Delay 0.49
FDR 5.1

Does the start and end rpm sound right..
How do you determine the start and end rpm

dose my fdr sound correct for the motor as i can go up on down depending on temps.
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Old 08-26-2010, 08:38 PM   #16840
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Originally Posted by Randy_Pike View Post
Caps that can power a fan for 5 seconds after being disconnected from power are the OPPOSITE of what we're looking for. We want a low esr cap that has the ability to soak up and release the energy quickly therefore stabilizing the battery line. A cap(s) that takes that long to discharge isn't helping your cause.

Two of the TT3520 caps will not really gain power but it can help keep things running cooler. We reccomend this for most of our guys running low turn mod motors like 3, 4 and 5 turn. This is especially helpful in 1s applications because of the ripple current.

Adding a 2nd cap will not hurt anything. I do reccomend using a pair of the SAME cap, don't mix and match.
im new to elec, what would u recommend i do to my stock RS, im running a 10.5 redline and want to get a nice battery, like 5k mah40-50c
what cap(s) would u add? if any
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Old 08-26-2010, 08:46 PM   #16841
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im new to elec, what would u recommend i do to my stock RS, im running a 10.5 redline and want to get a nice battery, like 5k mah40-50c
what cap(s) would u add? if any
just run the one stock cap that comes with the rs,if you see a increase in the heat on the esc(by all leds flashing)look at your setup to see if it can be changed and add a second cap.you should be fine with a 10.5
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Old 08-26-2010, 08:47 PM   #16842
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The stock cap spec'd in the unit is fine in nearly all applications.

Your 21.5 setup looks good to me for TC.
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Old 08-26-2010, 08:50 PM   #16843
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Originally Posted by Randy_Pike View Post
The stock cap spec'd in the unit is fine in nearly all applications.

Your 21.5 setup looks good to me for TC.
thought you said not to run max turbo
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Old 08-26-2010, 08:57 PM   #16844
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Originally Posted by 20 SMOKE View Post
just run the one stock cap that comes with the rs,if you see a increase in the heat on the esc(by all leds flashing)look at your setup to see if it can be changed and add a second cap.you should be fine with a 10.5
thanks
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Old 08-26-2010, 09:11 PM   #16845
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Hey guys, I am selling all my electric equipment.

I have a pair of Tekin RS Pros

and a few Tekin Motors (4.5, 10.5, 10.5).

Shoot me a PM if interested. You can find my sale thread in the respective RCTech area.

Thanks.
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