SMC LIPO BATTERY THREAD
#3106
Any time you add another connector you are adding resistance. You are buying a low resistance lipo for performance, why add resistance?
Either use a lipo wired direct to deans or use inboard bullet plugs direct to the ESC.
Another thing is if you are using the charge lead from the lipo to connect to the deans connector on your ESC, those birdcage connectors are junk. They are fine for a few amps in charge/discharge duty, but I wouldn't run the vehicle with those.
Danny prefers the deans to deans over bullet to esc (I think mostly because the bullet wears and resistance rises but a fresh plug alleviates that) but he would not recommend inboard charging lead to deans to ESC.
Either use a lipo wired direct to deans or use inboard bullet plugs direct to the ESC.
Another thing is if you are using the charge lead from the lipo to connect to the deans connector on your ESC, those birdcage connectors are junk. They are fine for a few amps in charge/discharge duty, but I wouldn't run the vehicle with those.
Danny prefers the deans to deans over bullet to esc (I think mostly because the bullet wears and resistance rises but a fresh plug alleviates that) but he would not recommend inboard charging lead to deans to ESC.
#3107

Just a fun fact for you. I still use the solid bullets regardless.
#3108
The bird cage bullet will wear and its contact with the port is looser, a bullet will do the same but you can visually see it. Both will create lots of heat and resistance or even arcing if left too long.
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray
#3109
Tech Fanatic
iTrader: (3)
Joined: Nov 2004
Posts: 980
From: Spring Hill Tn
The bird cage bullet will wear and its contact with the port is looser, a bullet will do the same but you can visually see it. Both will create lots of heat and resistance or even arcing if left too long.
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray

#3110
The bird cage bullet will wear and its contact with the port is looser, a bullet will do the same but you can visually see it. Both will create lots of heat and resistance or even arcing if left too long.
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray
Phend probably swaps out his bird cages every weekend or whatever, a club racer won't. He is also using them is lower amp draw power setups in 1/10 buggies.
If I used a bird cage in my 4x SCT for too long I would have a hot mess of plastic in my lipo tray

#3111
Yes, when both loosen you can open them back up, but metal has memory and it will soon go back to where it was. The solid bullets you can see it, the bird cage you have to feel it. By the time you feel it, its too loose.
In a high amp draw system it does matter, I have seen plastic cases start to melt by the port from the heat a newer bird cage created in a 4x SCT. Wasn't loose, just isn't made for that much power flowing. Lighter, lower powered buggy, they're fine when tight.
I let a solid bullet go for too long and melted the corner of a case, last time I did that. $2 set of fresh plugs every few months for me now.
But yeah, like both of you guys said, keeping plugs fresh is recommend and don't add extra joints in the wiring.
In a high amp draw system it does matter, I have seen plastic cases start to melt by the port from the heat a newer bird cage created in a 4x SCT. Wasn't loose, just isn't made for that much power flowing. Lighter, lower powered buggy, they're fine when tight.
I let a solid bullet go for too long and melted the corner of a case, last time I did that. $2 set of fresh plugs every few months for me now.
But yeah, like both of you guys said, keeping plugs fresh is recommend and don't add extra joints in the wiring.
Last edited by fq06; 03-15-2014 at 07:24 AM.
#3115
I recently purchased a 17.5. I noticed that the timing can be advanced well beyond the marks on the can. Is max timing the the last line on the can or the when the timing ring hits the bolt. Not wanting to take the chance of cooking the motor, I have it currently set on the last mark. Thanks
#3116
I recently purchased a 17.5. I noticed that the timing can be advanced well beyond the marks on the can. Is max timing the the last line on the can or the when the timing ring hits the bolt. Not wanting to take the chance of cooking the motor, I have it currently set on the last mark. Thanks
#3119
#3120
Joined: May 2006
Posts: 2,551
with a 17.5 u gonna want your timming about all the way up anyways u need all the power u can get with a 17.5 anyways ran the smc 7.5 in 2wh st last night motors are very nice my d3.5's a little stronger but 50 bucks a pop the smc is way more worth it.



11Likes