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View Full Version : Timing selection function in RX8


adrictan
07.01.2009, 12:47 PM
What does the Timing function do in the RX8 ESC? What value do u normally set it on a truggy?

tedo
07.01.2009, 02:37 PM
Lower timing: Less heat and less power. Longer run-times.
Higher timing: More heat and more power. Shorter run-times.

I have mine set at 8 degrees since day one, and it can run all day (stays cool) and has plenty of power.

What's_nitro?
07.01.2009, 03:05 PM
Yeah, I think 8-10* is average.

magman
07.01.2009, 03:55 PM
Mine is set to 12 in my Revo 3.3

BrushlessRacer
07.01.2009, 04:04 PM
running 10 in my 8T not tested any other settings

snellemin
07.01.2009, 04:13 PM
I used 5-10 for C50 hacker and 10 for Pletty.

js058515
07.02.2009, 06:12 AM
Mine is set to "min". Per Randy, depending on how many cells your running is where timing will make a difference. 4S and adjusted timing can give you more power, that's why you see Randy go as high as 30-35. I run 6S and timing changes are less significant. I have plenty of power, I just want cold electrical components.

adrictan
07.02.2009, 09:54 AM
Hmm, so if I'm running a 4s setup, Timing would be in the higher range. 30-35...If a 6s setup, 10-15 would suffice.

js058515
07.02.2009, 12:34 PM
Remember timing is another tuning option or tool. It's not mandatory that it be adjusted that's why it can only be done via the Tekin Hotwire. Quote from Fandy Pike "Timing affects the KV so higher timing is more rev's, less timing is more torque. On the 2050 I run timing low since for me it's already a lot of motor: I run it at 10. On the 1900 I'm up around 25-35 depending on traction,etc.

Another way to look at it is, if your motor is the 1900 and your timing is set to 10. Your running 4s on a small to medium track but your topping out early on the straights. Instead of gearing up 1 tooth on the pinion, you would try bumping up your timing in small increments to see if you could get a little more top end for the straight.

The side effect of higher timing is temps, so be sure to watch them. Different KV motors running on different voltages (4s/5s/6s) have a sweet spot when it comes to timing. Since your running 4S you are able to use timing as a better tool than myself who runs 6S. On 6S "0" timing has a very slight difference to "10". The one thing I noticed was motor temps were 10+ degrees higher with timing at "10".

Sorry for the long post, this was something I really wanted to figure out when I got the RX8 as I was having issues of burning up expensive motors and I wanted a setup that would run a cool motor.

BTW, post up some pics of your Castor fleet. I am not a direct drive fan, but I have always liked the Caster buggy and truggy.

adrictan
07.02.2009, 02:00 PM
Caster F8T:
http://i299.photobucket.com/albums/mm289/adrictan/29062009111.jpg
http://i299.photobucket.com/albums/mm289/adrictan/29062009112.jpg
http://i299.photobucket.com/albums/mm289/adrictan/03032009066.jpg
http://i299.photobucket.com/albums/mm289/adrictan/03032009067.jpg
http://i299.photobucket.com/albums/mm289/adrictan/21022009033.jpg

Caster EX1 RTR
http://i299.photobucket.com/albums/mm289/adrictan/Photo019.jpg

TekinTeamMgr
07.12.2009, 02:40 PM
The higher the voltage the less timing you will need. Timing is a great adjustment to add AFTER you've found your gearing. So set it low at first, get your base motor gearing and then add timing for more rip and top end.

I run 25-35 on my 1900 to stretch it's legs on larger tracks. The 2050 I used at Silver State was sitting at 10 since it's already fast enough on it's own...

adrictan
07.12.2009, 11:07 PM
I'm on 62T Spur & 16T pinion now so I'm pretty undergeared now. I tried fitting a 17T one but the meshing causes the centre diff to bind. I can't create enough spacing between the spur & pinion. My only option would be to go on higher timing...
My qn: Since I'm undergeared, adjusting the timing to the higher values shouldn't bring my motor temps up, right?

TekinTeamMgr
07.13.2009, 02:24 AM
It might a bit. If you're undergeared though it's the right answer for tuning. I drop a pinion if I bring up my timing and the results is simply a punchier car with near the same top end.

adrictan
07.18.2009, 01:17 AM
Putting the Timing in the higher values would give the car more torque and overall higher top speed?

whitrzac
07.18.2009, 12:51 PM
I thought tekin's timeing adjutment only affected the top end??:neutral:

brushlessboy16
07.18.2009, 12:59 PM
Changing timing is equivelent to changing Kv, lower for more torque, higher for more top end rpm..

SpEEdyBL
07.20.2009, 01:26 PM
Actually both torque and rpm increase as you go up in timing. You'll draw more current which means shorter runtime and higher temps but more power. That's why it's best to try gearing higher first and use timing as a fine tuning adjustment.