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Unread 02-18-2015, 01:32 PM   #1
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Default Controller upgrade is in! Couple question for the DCX400

Received my DXC400 controller upgrade kit yesterday (thanks scotty b for the great communication and quick shipping to Canada). Reason for the upgrade was that I had a blown stock Curtis controller that probably shouldn't have lasted as long as it did (bigger tires, rear seat load, trailer pulling etc). I obviously got the HD solenoid and all new 4G wires as well but still stock motor.

I haven't given it a test run yet, just rear wheels lifted of the ground but all seems to working. My couple questions are:

1.The wheels don't seem to move until the pedal is pushed pretty far down but wheels get up to a pretty good speed when fully pushed. I noticed in the DXC mini manual that the light on the controller would turn yellow on wide open throttle. So my guess is its not getting that far or won't without being under load with an actual test run? Maybe better to not max it out anyway? I wasn't pushing full throttle for more then a couple seconds with out load as assume it can't be good for it.

2. I'm I going to see any noticeable gains (speed/torque) or will it just be a lot less hard on the controller over the stock one? Will it be the same/less/harder on the batteries?

3. Is the fuse O.K where its at (top battery in second pic, that cable goes to solenoid) or does it need to be at controller/solenoid?

Sorry had to post pic, everything looks so clean now





Thanks
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Unread 02-18-2015, 01:45 PM   #2
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Default Re: Controller upgrade is in! Couple question for the DCX400

PLEASE don't run your cart wide open with the rear tires off the ground!!!!!!! You can and WILL over-rev the motor causing it to blow, especially with an aftermarket controller. The damage is quite catastrophic, and a blowing motor will sometimes in turn blow up your controller.
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Unread 02-18-2015, 01:48 PM   #3
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Default Re: Controller upgrade is in! Couple question for the DCX400

Stan, he has an IQ cart that if you run WOT on stands, the speed sensor limits how fast the motor runs. I don advise running it like that, but it will protect from an accident
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Unread 02-18-2015, 01:51 PM   #4
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Default Re: Controller upgrade is in! Couple question for the DCX400

Quote:
Originally Posted by CCFanatic View Post
Stan, he has an IQ cart that if you run WOT on stands, the speed sensor limits how fast the motor runs. I don advise running it like that, but it will protect from an accident
Should've caught that when I saw the DCX and the tow run switch.
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Unread 02-18-2015, 01:52 PM   #5
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Default Re: Controller upgrade is in! Couple question for the DCX400

You're fine. Mistakes happen to the best of us
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Unread 02-18-2015, 01:54 PM   #6
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Default Re: Controller upgrade is in! Couple question for the DCX400

The DCX does not use the speed sensor, but Sepex motors have natural speed regulation.

Did You load the clubcar3a.hex throttle map into the controller?
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Unread 02-18-2015, 02:11 PM   #7
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Default Re: Controller upgrade is in! Couple question for the DCX400

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Originally Posted by Sergio View Post
The DCX does not use the speed sensor, but Sepex motors have natural speed regulation.

Did You load the clubcar3a.hex throttle map into the controller?
I only ran it for less then 2 sec at WOT a couple times. Not sure what you mean by "Did You load the clubcar3a.hex throttle map into the controller".

I received the controller through scotty b and installed it right in. He said it would be programmed ready to put it in the cart
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Unread 02-18-2015, 02:33 PM   #8
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Default Re: Controller upgrade is in! Couple question for the DCX400

The clubcar3a.hex is a modified throttle map that makes anything above 90% throttle be considered as 100% throttle.

It needs to be manually loaded into the controller, perhaps scottyb already did it, I am sure he will post and let you know.

The initial pedal movement with no motor response can only be fixed by modifying the MCOR resistance.

I posted a diagram to build an adapter to change the MCOR range, not sure if Scottyb would build and sell them or you need to build one yourself.
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Unread 02-18-2015, 02:36 PM   #9
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Default Re: Controller upgrade is in! Couple question for the DCX400

Quote:
Originally Posted by Sergio View Post
The clubcar3a.hex is a modified throttle map that makes anything above 90% throttle be considered as 100% throttle.

It needs to be manually loaded into the controller, perhaps scottyb already did it, I am sure he will post and let you know.

The initial pedal movement with no motor response can only be fixed by modifying the MCOR resistance.

I posted a diagram to build an adapter to change the MCOR range, not sure if Scottyb would build and sell them or you need to build one yourself.
O.K thanks, I'm sure he'll chime in and let me know what was preprogrammed in the controller. Again, never did a real test run yet so don't want to get a head of myself.
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Unread 02-18-2015, 02:41 PM   #10
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Default Re: Controller upgrade is in! Couple question for the DCX400

Just for reference, here are the relevant posts:

The adapter to modify the MCOR resistance range.


Why it improves the low end throttle response.
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