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-   -   Official Tekin RX8 GEN2 ESC Thread (https://www.rctech.net/forum/radio-electronics/726576-official-tekin-rx8-gen2-esc-thread.html)

munrath 02-18-2014 02:22 PM

Cajvol94 - You can think of Throttle Minimum as punch in some regards. The lower the number the softer the throttle will feel. The higher the number the abrupt the throttle will feel.

Mark

Cajvol94 02-18-2014 02:52 PM


Originally Posted by munrath (Post 13020773)
Cajvol94 - You can think of Throttle Minimum as punch in some regards. The lower the number the softer the throttle will feel. The higher the number the abrupt the throttle will feel.

Mark

Perfect and thanks for the info.

noddy2 02-18-2014 06:44 PM

timing
 

Originally Posted by Cajvol94 (Post 13019105)
How so you change the starting point with the hot wire? And what setting did you have at 70%? Thanks.

using the hot wire ,go to the timing screen ,see the profiles 1 to 6 ,select 5 or 6 then the screen allows you to adjust the rpm that timing starts to be added.it will generate a list of end rpm points that you can choose.
the amount of timing advance can be changed from 0 to 100% .
100% is @ 30 degrees .
the timing is only added gradually from the selected rpm and is full advanced by the end rpm
The 1700 motor is more suitable for timing changes than the other winds ie 1900 and 2050 .
I also changed the min throttle to give a bit more snap ,which i found very handy for small but abrupt changes to pitch in flight .

another point to mention ! I got better run time with the 1700 ,@20min .and very smooth power band (turbo like) with higher top speed ,and always a bit up the sleeve for big jumps ,both on approach and for getting the nose up in flight. If on 5s 1700 @ same rpm as 2050 but run cooler .

Cajvol94 02-19-2014 04:05 AM


Originally Posted by noddy2 (Post 13021690)
using the hot wire ,go to the timing screen ,see the profiles 1 to 6 ,select 5 or 6 then the screen allows you to adjust the rpm that timing starts to be added.it will generate a list of end rpm points that you can choose.
the amount of timing advance can be changed from 0 to 100% .
100% is @ 30 degrees .
the timing is only added gradually from the selected rpm and is full advanced by the end rpm
The 1700 motor is more suitable for timing changes than the other winds ie 1900 and 2050 .
I also changed the min throttle to give a bit more snap ,which i found very handy for small but abrupt changes to pitch in flight .

another point to mention ! I got better run time with the 1700 ,@20min .and very smooth power band (turbo like) with higher top speed ,and always a bit up the sleeve for big jumps ,both on approach and for getting the nose up in flight. If on 5s 1700 @ same rpm as 2050 but run cooler .

What's a good rpm starting point for a 1700kv motor and timing?
Thanks.

noddy2 02-19-2014 05:28 AM

timing
 
throttle minimum is set to a low value when used with rock crawlers etc ,or big trucks.
a good setting for buggy is 10 to 20 ,the higher the number,the more abrupt the start up .( is a bit like when 'blipping' a nitro )
You 'must' get your'e gearing correct ! try to find a spur gear with less teeth or smaller dia,if available .you should then be able to fit a larger dia pinion with more teeth . If you cant get a spur that fits with less than the current 48 teeth ,look for a mod1 pinion with more teeth ,but small dia ,as different brands vary .
I cant remember the exact timing advance mix i used with the 1700 k
as it was some time ago ,but @ 70% advance ,which is 70% of 30 degrees ,( which is the max timing can be applied ).
if you begin adding timing @ 18000 rpm ,all in @ 25000rpm .
this will extend the max rpm from @ 25000 to @ 28000 .
hope this helps :)

RokleM 02-19-2014 05:36 AM


Originally Posted by jhautz (Post 13020091)
so I need hotwire 2.0 to make it work on my android? I am running android 4.4.2 (latest version) and cant seem to make the hotwire app work. Is it because I dont have the gen2 Hotwire box?

Up just a few posts.

http://www.rctech.net/forum/13008253-post1763.html

Randy_Pike 02-19-2014 07:35 AM


Originally Posted by jhautz (Post 13020091)
so I need hotwire 2.0 to make it work on my android? I am running android 4.4.2 (latest version) and cant seem to make the hotwire app work. Is it because I dont have the gen2 Hotwire box?

No, you will need to wait for the next App update which fixes the 4.2+ Android OS issues. It's coming soon.

uclabruins89 02-19-2014 10:32 AM

Battery recommendations? Right now i'm using some nanotech 65c/130c 6000mah batteries and i'm seeming to get shorter runtimes than I want. I'll have to time myself next time at the track, but i swear i'm only getting like 6 min or 15ish laps. I got the batteries new last year, so maybe they are just wearing down? I did not cycle them for maybe 2 months once, but otherwise have used them all regularly. Any ideas?

Thinking about upgrading to some protek 100c batteries.

Randy_Pike 02-19-2014 10:37 AM

6000mah on 4s you should get 12 minutes pretty easy. What Car? gearing? 4s right? Give us all the details so we can help/advise.

uclabruins89 02-19-2014 10:51 AM


Originally Posted by Randy_Pike (Post 13023565)
6000mah on 4s you should get 12 minutes pretty easy. What Car? gearing? 4s right? Give us all the details so we can help/advise.

Sorry about details lol. 2s battery

Car: scte 2.0
setup: rx8 gen2 and 4300 pro4 hd
gearing: 14t

Seems to start cutting out around 7.5v arggggg I'll do better testing next time i'm at the track

TY@TEAMTEKIN 02-19-2014 11:37 AM


Originally Posted by Cajvol94 (Post 13022538)
What's a good rpm starting point for a 1700kv motor and timing?
Thanks.

Timing doesn't do much on 4-pole motors, maybe a couple hundred RPM at best before it just creates more heat and no more power. I never really touch the RPM settings on any of my 1/8 setups and typically run less than 10 Timing all the time. I've never needed more.

Cajvol94 02-19-2014 12:25 PM


Originally Posted by TY@TEAMTEKIN (Post 13023741)
Timing doesn't do much on 4-pole motors, maybe a couple hundred RPM at best before it just creates more heat and no more power. I never really touch the RPM settings on any of my 1/8 setups and typically run less than 10 Timing all the time. I've never needed more.

Ok and thanks for y'all's comments. Now I'm smart, lol!

noddy2 02-19-2014 02:45 PM

1700 timing
 

Originally Posted by TY@TEAMTEKIN (Post 13023741)
Timing doesn't do much on 4-pole motors, maybe a couple hundred RPM at best before it just creates more heat and no more power. I never really touch the RPM settings on any of my 1/8 setups and typically run less than 10 Timing all the time. I've never needed more.

Timing has a big effect with the 1700 motor !

TY@TEAMTEKIN 02-19-2014 03:07 PM


Originally Posted by noddy2 (Post 13024346)
Timing has a big effect with the 1700 motor !

Sure it does, I just never use much of it. 4-poles don't react the same as 2-poles with it. It does add RPM, just not as much as it would with a 2-pole motor.

Randy_Pike 02-19-2014 06:18 PM


Originally Posted by uclabruins89 (Post 13023608)
Sorry about details lol. 2s battery

Car: scte 2.0
setup: rx8 gen2 and 4300 pro4 hd
gearing: 14t

Seems to start cutting out around 7.5v arggggg I'll do better testing next time i'm at the track

ok there we go. You will NOT get 12 minutes on that pack. In 4wd SC 2s 6000mah may get you 8-10 depending on track size, driver,etc.

You're driving in the highest load class for batteries, period.

IF you have a weak or low quality pack ,you will find it here.

Try the new Protek's ;)


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