Ftx outlaw drivetrain problem after upgrade

[toddy]

Hi ,
I’m in need of help with my Ftx outlaw - I have upgraded to brushless with a GoolRC 3650 4300KV Brushless Motor with 60A ESC Combo. Upgraded the batteries to lipo 3200, changed pinion to 23t with new spur. Now the car is really slow in response to the throttle and the drive has no power under any resistance. The wheels do turn but if I move it from tarmac to dirt or grass it doesn’t have the power to move. I’m at a complete loss with it now !

 

[gragner66]

If nothing else is in a bind and mesh is good. Sounds to me like the motor needs to be programed by one of these cards. I’d pull motor out still hooked up and see how fast it’s turning

 

[CertifiedMike]

Welcome to RCTALK.COM!!!

Alqays start with fresh, new or fully charged batteries for electronic testing. Keep your old stuff if you want. Just for testing, start with 100% sure, good power.

If you are sure your power sources are good, move on to the radio. Set all trum settings to 'zero' and then calibrate your esc.
After that is done, report back with any changes...
I think recalibrating will solve your issues.

 

[RustyUs]

Hi ,
I’m in need of help with my Ftx outlaw - I have upgraded to brushless with a GoolRC 3650 4300KV Brushless Motor with 60A ESC Combo. Upgraded the batteries to lipo 3200, changed pinion to 23t with new spur. Now the car is really slow in response to the throttle and the drive has no power under any resistance. The wheels do turn but if I move it from tarmac to dirt or grass it doesn’t have the power to move. I’m at a complete loss with it now !

Any time you introduce a new ESC to your ride, you need to calibrate the throttle endpoints to your radio (unless it's one of them weird ESCs that just looks for neutral). Did you calibrate the ESC's throttle?

And welcome to the fold!

 

[9x19]

Welcome to RCT

 

[RustyUs]

I assume pinion gear is secure and and drive pins are installed. I'm just brainstorming. It's a good possibility that GoolRC speed controls do, in fact, just look for a neutral signal from transmitter. I say this because I don't see a setup button on the case of the ESC or one on the ON/OFF switch base. Also...

 

[toddy]

Any time you introduce a new ESC to your ride, you need to calibrate the throttle endpoints to your radio (unless it's one of them weird ESCs that just looks for neutral). Did you calibrate the ESC's throttle?

And welcome to the fold!

I didn’t actually, I didn’t have the bind plug with my controller to complete the setup. I just left that as it seemed to work fine control wise anyway .

 

[ahr43]

What was the pinion/spur gear ratio before changing? Pinion/spur ratio after changing? Very possibly it is inadvertently geared too high?

Welcome to the forum, toddy. -AC

 

[toddy]

Welcome to RCTALK.COM!!!

Alqays start with fresh, new or fully charged batteries for electronic testing. Keep your old stuff if you want. Just for testing, start with 100% sure, good power.

If you are sure your power sources are good, move on to the radio. Set all trum settings to 'zero' and then calibrate your esc.
After that is done, report back with any changes...
I think recalibrating will solve your issues.

Thanks, I don’t have the bind cable for my
controller - having said that I did just leave it as it seemed to control the car ok albeit with the problems still present. I’ll have a look to see if it can be done without the cable

 

[toddy]

What was the pinion/spur gear ratio before changing? Pinion/spur ratio after changing? Very possibly it is inadvertently geared too high?

Welcome to the forum, toddy. -AC

Hi it was the original parts before hand , I’ve only changed the pinion from 17 to 23 but to be honest it had the issue before I changed that part.

 

[CertifiedMike]

I don't know that specific gear. I can't say for certain if yours is the same but spektrum jumper is just that, a wire frome 1pin to another. It might be easy to jump the pins in yours, maybe not too.

I think you need to start at setting up your radio even before my recal idea.

Maybe someone here knows about the jumper config?

Maybe an email to the company to ask about them sending another jumper is a better idea than making your own.

Binding, then set endpoints... then start to use it.

You can fry servos if your endpoints are wrong.

 

[toddy]

Thanks I’ll give it a go