1:8 EP BUGGY (CASTER) or ANY BRUSHLESS CONVERSION THREAD
02-03-2009, 06:30 AM
#152
02-03-2009, 09:14 AM
#154
Yeah....thats what i heard too......i guess 3 yes makes it a fact......
....... ........and normally friendly & always willing to share , always smiling are the signs of loaded kaki.......wahahahhaha....... ..not easy to maintain those BL monsters man........my Fusion also need to masuk company's bill........kekekekkeeke..............sigh
:cr y:
02-03-2009, 09:21 AM
#155
And now for something a litle different - BL Monster Tuck Work In Progress :
front sway bar installed
rear sway bar installed
ACE 1015 .1sec 15kg servo
Lipo in the battery compartment
Lipo in the battery compartment
Hobby City Rhino 3S 4900mah 20C lipo X 2
Hopefully will get motor this evening. Esc will be MMM. 21/65 ratio gunning for 38mph (61km/h)
Regards,
Joe Ling
front sway bar installed
rear sway bar installed
ACE 1015 .1sec 15kg servo
Lipo in the battery compartment
Lipo in the battery compartment
Hobby City Rhino 3S 4900mah 20C lipo X 2
Hopefully will get motor this evening. Esc will be MMM. 21/65 ratio gunning for 38mph (61km/h)
Regards,
Joe Ling
Mmmm.....3S 4900mah 20C x 2....meaning 11.1V x2= 22.2V
............what will be the run time like?? 
I wonder my Hobbywing 80A w 3665 BL Motors
can take this combination as well?? How do we know , how capable are our systems??? To what extend...?And if higher C, say like 30-35C, is it still ok??? The last thing i want is keluar asap from my ESC or Motor........
02-03-2009, 04:10 PM
#156
Hi SuperEk4,
Sorry, I was having a little bit if internet problem at home
. Connection erratic. Was trying to upload this chart of feigao motor rating :
This chart shows that the 9Xl can take 74A before its rating is exceeded. Normally, if overamped, motor should get overheated & the rotor loses its magnetism (to a certain extent). However, for the motor to overheat until the enamel melt & cause a short. Hmmm, that will take a hell lot of current...
Regards,
Joe Ling
Sorry, I was having a little bit if internet problem at home
. Connection erratic. Was trying to upload this chart of feigao motor rating :This chart shows that the 9Xl can take 74A before its rating is exceeded. Normally, if overamped, motor should get overheated & the rotor loses its magnetism (to a certain extent). However, for the motor to overheat until the enamel melt & cause a short. Hmmm, that will take a hell lot of current...
Joe Ling
02-03-2009, 04:39 PM
#157
hmm... (I think laa....) to prevent your motor from overamped....
one way is to increase resistance, perhaps by increasing the pinion size to about 16-17T ?
another way is to reduce the voltage, use lower S count Lipo battery.
Or control Tx throttle curve
Or use a smaller ESC, and give that MMM ESC to me
one way is to increase resistance, perhaps by increasing the pinion size to about 16-17T ?
another way is to reduce the voltage, use lower S count Lipo battery.
Or control Tx throttle curve
Or use a smaller ESC, and give that MMM ESC to me
02-03-2009, 05:38 PM
#158
Hi Radical,
My target runtime is 20 minutes. A 5S 6000mah has similar capacity & in a truggy which is slightly lighter, 20 minutes is possible. So, I guess 6S which is slight more efficient in a heavier MT like the Revo can last 20 minutes.
U have to check the spec of your esc to make sure that it is 6S capable. If not, u will see the magic smoke escape from the esc, very hard to put it back in
Battery C rating the higher the better.
Regards,
Joe Ling
My target runtime is 20 minutes. A 5S 6000mah has similar capacity & in a truggy which is slightly lighter, 20 minutes is possible. So, I guess 6S which is slight more efficient in a heavier MT like the Revo can last 20 minutes.
U have to check the spec of your esc to make sure that it is 6S capable. If not, u will see the magic smoke escape from the esc, very hard to put it back in
Battery C rating the higher the better.
Mmmm.....3S 4900mah 20C x 2....meaning 11.1V x2= 22.2V............what will be the run time like??
I wonder my Hobbywing 80A w 3665 BL Motors can take this combination as well?? How do we know , how capable are our systems??? To what extend...?
And if higher C, say like 30-35C, is it still ok??? The last thing i want is keluar asap from my ESC or Motor........
............what will be the run time like?? I wonder my Hobbywing 80A w 3665 BL Motors
can take this combination as well?? How do we know , how capable are our systems??? To what extend...?And if higher C, say like 30-35C, is it still ok??? The last thing i want is keluar asap from my ESC or Motor........
Joe Ling
02-03-2009, 06:47 PM
#159
hi Joe, I saw d chart, I wonder if a normal setup of 14t n 62 spur will overload d motor? Even I use d speed chart website n calcuated d power output it did not exceed.offshore has stop emailing me now my only hope is feigao but dun think they will swap one for me.
I m so fed up now I bought a watt meter.any advise on this topic? It will b a great help for 1/8 electric guys
I m so fed up now I bought a watt meter.any advise on this topic? It will b a great help for 1/8 electric guys
02-03-2009, 06:49 PM
#160
Hmm, decreasing cell count is going to increase current draw. Put it this way - it's about power output in the end. Simply put :
Power = Voltage X Current
To produce the same power with lesser voltage, more current is needed & vice versa.
More current results in more wasted heat due to resistance in the system.
So, higher voltage setups tends run cooler & longer for the same capacity of power source (battery)
Regards,
Joe Ling
PS : Frost, Feigao cahrt as attached
Power = Voltage X Current
To produce the same power with lesser voltage, more current is needed & vice versa.
More current results in more wasted heat due to resistance in the system.
So, higher voltage setups tends run cooler & longer for the same capacity of power source (battery)
hmm... (I think laa....) to prevent your motor from overamped....
one way is to increase resistance, perhaps by increasing the pinion size to about 16-17T ?
another way is to reduce the voltage, use lower S count Lipo battery.
Or control Tx throttle curve
Or use a smaller ESC, and give that MMM ESC to me
one way is to increase resistance, perhaps by increasing the pinion size to about 16-17T ?
another way is to reduce the voltage, use lower S count Lipo battery.
Or control Tx throttle curve
Or use a smaller ESC, and give that MMM ESC to me
Joe Ling
PS : Frost, Feigao cahrt as attached
02-03-2009, 07:47 PM
#161
My personal feeling is that the quality of the motor is in question lah.
Some kind of wattmeter is a good investment. Use this one :
http://www.eagletreesystems.com/MicroPower/micro.htm
Records many things like battery voltage, current draw, temperature... I get good results but can be a hassle for a lazy bum like me.
Regards,
Joe Ling
Some kind of wattmeter is a good investment. Use this one :
http://www.eagletreesystems.com/MicroPower/micro.htm
Records many things like battery voltage, current draw, temperature... I get good results but can be a hassle for a lazy bum like me.
hi Joe, I saw d chart, I wonder if a normal setup of 14t n 62 spur will overload d motor? Even I use d speed chart website n calcuated d power output it did not exceed.offshore has stop emailing me now my only hope is feigao but dun think they will swap one for me.
I m so fed up now I bought a watt meter.any advise on this topic? It will b a great help for 1/8 electric guys
I m so fed up now I bought a watt meter.any advise on this topic? It will b a great help for 1/8 electric guys
Joe Ling
02-03-2009, 07:47 PM
#162
hmm.. if we use Ohm's Law, I = V / R, voltage increase also means amperes increase... bro... 
02-04-2009, 07:54 AM
#165
Hi Radical,
My target runtime is 20 minutes. A 5S 6000mah has similar capacity & in a truggy which is slightly lighter, 20 minutes is possible. So, I guess 6S which is slight more efficient in a heavier MT like the Revo can last 20 minutes.
U have to check the spec of your esc to make sure that it is 6S capable. If not, u will see the magic smoke escape from the esc, very hard to put it back in
Battery C rating the higher the better.
Regards,
Joe Ling
My target runtime is 20 minutes. A 5S 6000mah has similar capacity & in a truggy which is slightly lighter, 20 minutes is possible. So, I guess 6S which is slight more efficient in a heavier MT like the Revo can last 20 minutes.
U have to check the spec of your esc to make sure that it is 6S capable. If not, u will see the magic smoke escape from the esc, very hard to put it back in
Battery C rating the higher the better.
Regards,
Joe Ling