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Unread 05-21-2016, 02:20 PM   #31
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Default Re: Alltrax 500A XCT Installed!

I'm seriously interested in this upgrade, but I have a bunch of questions for you. My ride is a stock 2003 CC Pathway speed code 3 I assume because it tops at 18MPH. I plan to either put the largest tires that will fit on it, or add a small lift to get decent wheels - I want to keep the front brakes so I believe the cable length is my gating factor. I live in the hills so torque is a big deal. My end goal is to get to 25 MPH which is our community speed limit, and be able to hold that speed up hill. We have some pretty steep hills so I realize that might be too much to ask but if I can maintain 20 MPH on the big hills I would be satisfied.
Questions:
1. Will my OBC limit my top speed or is that program set in the controller?
2. How close to the end goal would you expect me to get with this upgrade?
3. Would I likely need a motor upgrade down the road? This will help me decide on 400A vs. 500A
4. Does the controller sense the motor temp or does it just use current/time calcs to predict over-temp?
5. Is it imperative to upgrade the solenoid, or will my stock one do the job?
6. Do you know what the max size tire I can use without a lift?
7. Do you know the max lift I can use without brake cable issues. My kids like to drive it so I'm more concerned with safety than cool factor so minimal lift is preferred.
I don't want to overwhelm you with questions right out of the gate, so I'll stop there for this round. LOL
Thanks in advance
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Unread 05-23-2016, 10:11 PM   #32
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Default Re: Alltrax 500A XCT Installed!

Ok so I got my 500A XCT installed (they did not finish until Sunday) along with my HD solenoid, 2 gauge cables and light kit. Here are the results on my 2010 Club Car precedent 6" lift 23" tires stock motor,XCT controller set on 400amps with 2013 batteries: Top speed is now 25-27mph and the cart seems to have much more torque it will bark the tires off the line in reverse lol it's really a joy to ride on road and off. My only problem would be is when cruising lets say at 1/2 throttle going about 17mph or so the cart seem a little jerky its kind of like it goes along very nicely but then for a split second looses power or something. Now when riding at full throttle everything is fine. With all that being said I really like this upgrade but still need some fine tuning
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Unread 05-23-2016, 10:37 PM   #33
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Default Re: Alltrax 500A XCT Installed!

Quote:
Originally Posted by haftafish8780 View Post
Ok so I got my 500A XCT installed (they did not finish until Sunday) along with my HD solenoid, 2 gauge cables and light kit. Here are the results on my 2010 Club Car precedent 6" lift 23" tires stock motor,XCT controller set on 400amps with 2013 batteries: Top speed is now 25-27mph and the cart seems to have much more torque it will bark the tires off the line in reverse lol it's really a joy to ride on road and off. My only problem would be is when cruising lets say at 1/2 throttle going about 17mph or so the cart seem a little jerky its kind of like it goes along very nicely but then for a split second looses power or something. Now when riding at full throttle everything is fine. With all that being said I really like this upgrade but still need some fine tuning
. Play with the throttle curve until you find something you like. The cart shouldn't jerk. You may want to plug your laptop into the controller and monitor your throttle percentage. You may have a throttle fluctuation within your MCOR. The XCT has a self-learning design for the throttle signal range, but, as with any controller, can not distinguish the difference in a throttle fluctuation and the driver not holding a steady foot. The throttle percentage readout within the XCT Toolkit will help you narrow that down.
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Unread 05-24-2016, 08:13 AM   #34
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Default Re: Alltrax 500A XCT Installed!

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Originally Posted by TahoeDawgZ71 View Post
. Play with the throttle curve until you find something you like. The cart shouldn't jerk. You may want to plug your laptop into the controller and monitor your throttle percentage. You may have a throttle fluctuation within your MCOR. The XCT has a self-learning design for the throttle signal range, but, as with any controller, can not distinguish the difference in a throttle fluctuation and the driver not holding a steady foot. The throttle percentage readout within the XCT Toolkit will help you narrow that down.
Do I need a new MCOR? If so where do I get one? And how much $$
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Unread 05-24-2016, 10:42 AM   #35
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Default Re: Alltrax 500A XCT Installed!

Quote:
Originally Posted by haftafish8780 View Post
Do I need a new MCOR? If so where do I get one? And how much $$
You might. The software can confirm. If you need one, I recommend buying one from the same place you bought the controller.
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Unread 05-24-2016, 05:48 PM   #36
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Default Re: Alltrax 500A XCT Installed!

I found a similar problem with mine and it's the fact that the pedal moves when the cart goes over bumps at 20mph. At full throttle it's smooth because that's all she's got. At part throttle, the throttle positon was moving with my foot when the cart went over even small bumps in the road. Smoothing the throttle curve helps this a lot but when you smooth the bottom end, you actualy accentuate the top end of the throttle curve so it gets more sensitive at half to full.
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Unread 05-24-2016, 06:27 PM   #37
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Default Re: Alltrax 500A XCT Installed!

Quote:
Originally Posted by Volt_Ampere View Post
I found a similar problem with mine and it's the fact that the pedal moves when the cart goes over bumps at 20mph. At full throttle it's smooth because that's all she's got. At part throttle, the throttle positon was moving with my foot when the cart went over even small bumps in the road. Smoothing the throttle curve helps this a lot but when you smooth the bottom end, you actualy accentuate the top end of the throttle curve so it gets more sensitive at half to full.
Mine does it even at low speed over very rough terrain because I can't keep my foot steady while jostling around. The old electronics were so under powered we couldn't feel any performance change from this signal fluctuation...
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Unread 05-24-2016, 06:53 PM   #38
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Default Re: Alltrax 500A XCT Installed!

It would be nice if Alltrax added a filter to the throttle input to smooth it out from this kind of variation. The controller is very responsive - trying to match the demand to the throttle setting. I can see this response when I take a log of my runs at partial throttle.
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Unread 05-24-2016, 06:53 PM   #39
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Default Re: Alltrax 500A XCT Installed!

Hey Scottyb and Tahoe, can one of you answer my questions above or did I ask too many questions in a single post? LOL
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Unread 05-24-2016, 07:11 PM   #40
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Default Re: Alltrax 500A XCT Installed!

Quote:
Originally Posted by Mr. Vern View Post
Hey Scottyb and Tahoe, can one of you answer my questions above or did I ask too many questions in a single post? LOL
1. Will my OBC limit my top speed or is that program set in the controller?

The OBC has nothing to do with limiting speed. It's all programmed in the controller

2. How close to the end goal would you expect me to get with this upgrade?

Maintaining 20mph on hills is definitely doable considering the hills are mild to moderate. The bigger the incline, the more the cart has to slow down. Electric motors generate most of their torque at low RPM, so naturally they have to slow down more to climb steeper hills. The more power you put to the motor, the less it has to slow down. I don't see 20mph being a problem at all.

3. Would I likely need a motor upgrade down the road? This will help me decide on 400A vs. 500A

On your Pathway, you'd need to upgrade the motor now. Don't put high amperage to a GE motor. It'll fry it. The brush surface on the GE motors is very small and can't handle high amperage. The newer ADC/AMD motors are much better for that.

4. Does the controller sense the motor temp or does it just use current/time calcs to predict over-temp?

The controller monitors it's own temperature. It does not monitor motor temp. If everything is mapped properly and you don't overwork the motor, you're not gonna have a problem with the motor heating up.

5. Is it imperative to upgrade the solenoid, or will my stock one do the job?

All power must go through the solenoid. The factory solenoid with a 400 or 500 amp controller would be like taking a 4 lane interstate through a one lane detour. It must be upgraded to carry high current.

6. Do you know what the max size tire I can use without a lift?

20" tall on the rear, stock height on the front unless you used a 1" lift block, then you can run 20's all around.


7. Do you know the max lift I can use without brake cable issues. My kids like to drive it so I'm more concerned with safety than cool factor so minimal lift is preferred.
I don't want to overwhelm you with questions right out of the gate, so I'll stop there for this round. LOL

DS cars don't typically have brake cable issues on any of the lift kits I've ever installed. Never used Jake's, so I can't speak for them.
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