1st Cart Recommendations

[Jkry2121]

Originally Posted by scottyb

Sign up for a sponsorship if you want to invite people to your showroom every other post. We would love to have your support.

Already got the ball rolling on that with Spriddle.

[cgtech]

"Oh if i only knew"... I am at a Ezgo & yamaha dealer... Oh if you only knew what i can do with that programmer...yeah, that 650amp rxv, i built it.

[BigRichP]

Lift kits don't raise the axle... Duh. My mistake. Bigger tires to get more clearance is what I was trying for there. I'll need to reread through the above posts and do some more research before I ask more questions. I'm in complete agreement on the lithium though. It'll need to be a bit more mainstream before I invest in it. Also I am familiar with two speed, variable speed, and 3 phase variable speed drives because of the industry I work in. For whatever reason I just never thought to apply it to the golf cart world.

[BigRichP]

Without thinking too hard about it, one difference between the txt and rxv is that one is ac and one is dc. Being that a polaris ranger is ac, I would think the ac rxv would be the way to go. Am I wrong?

[BigRichP]

So this got me thinking. I'm sure the Polaris EV is a great cart. So if I'm not going to buy one because I don't want to spend the money on one, it makes sense that I would want my golf cart to be a close runner up. With that being said, the closer to their design probably the better right? Here are their specs, let me know if you think I can buy/build a reasonable match:

ENGINE & DRIVETRAIN
Engine TypeSingle 48-Volt, High-Efficiency, AC-Induction Motor i
Transmission/Final DriveDirect Drive With Low-Noise Gears
Drive System TypeOn-Demand True AWD/2WD/ VersaTrac Turf Mode
Engine Braking System (EBS)Not Equipped
Active Descent ControlNot Equipped
SUSPENSION
Front SuspensionMacPherson Strut 9" (22.9 cm) Travel i
Rear SuspensionDual A-Arm, IRS 9" (22.9 cm) Travel
BRAKES
Front/Rear Brakes4-Wheel Hydraulic Disc with Dual-Bore Front and Rear Calipers
Parking BrakeHand-Actuated
TIRES / WHEELS
Front Tires25 x 9-12; Carlisle
Rear Tires25 x 9-12; Carlisle
WheelsStamped Steel
DIMENSIONS
Bed Box Dimensions (L x W x H)32 x 42 x 11.5" (81 x 107 x 29 cm)
Front/Rear Rack or Box CapacityN.A./500 lb (226.8 kg)
Ground Clearance10" (25.4 cm)
Overall Vehicle Size (L x W x H)110 x 58.0 x 73 in. (279x 147 x 185 cm)
Payload Capacity1,000 lb (453.6 kg)
Person Capacity2
Wheelbase72" (182.9 cm)
Estimated Dry Weight (pounds/kg)1,726 lb (783 kg)

[HiTechRedNeck]

Polaris specs pretty strong...

I will highlight differences..

1)Ground clearance and Suspension travel.... No REASONABLE way to match with RXV.

2)Transmission/Final DriveDirect Drive With Low-Noise Gears
You should never be able to hear an RXV's gears (the motor whine completely downs the gear noise out )

3) RXV's have no "real" brakes. Braking is Motor/regen braking with a parking/emergency brake.

4) RXV's have a posi- rear end-- help on slippery stuff.

Some (hopefully) useful info on torque.

Although a D.C. motor has more torque than an A.C. motor at zero rpm,
most "Drive time" use of torque is in hill climbing and load carrying.

The RXV's have plenty of torque to "hop" curbs and other small obstacles.
The RXV's have great performance at speed on hills-- where D.C. motors tend to slow .


Good Luck!!

[BigRichP]

Originally Posted by HiTechRedNeck

Although a D.C. motor has more torque than an A.C. motor at zero rpm,

most "Drive time" use of torque is in hill climbing and load carrying.



The RXV's have plenty of torque to "hop" curbs and other small obstacles.

The RXV's have great performance at speed on hills-- where D.C. motors tend to slow .

This has been mentioned a few times and I guess it just wasn't clicking with me until now. I've seen the ev YouTube videos of guys trying to make it up the hills. They have to back up to get a running start. That could be a real problem for me. It's a long climb to the top and I don't always stop on flat ground. Turning around would become a real nightmare with no zero rpm torque.

Why is polaris using the ac motor then?

[BigRichP]

Just got off the phone with a local golf cart sales place. They quoted me:

2010 club car pq 48 volt $3500 with new batteries
DD torque motor, 700 amp controller, and 4 gauge wire $2,000
Jakes 6" lift and 23" tires $1,600
4 wheel drive option $3,000
These are installed prices

All told I can get a new EV for that amount of dough

[HiTechRedNeck]

Never said RXV had low torque at zero rpm.

They have good zero rpm torque--- A DC motor has BETTER zero rpm torque- but that advantage QUICKLY disappears as rpm increases.

Please test drive RXV's You will see what i am trying to describe!

What EV had trouble with what hill? (link please?)

RXV's are popular here BECAUSE of the big hills.


Good Luck !!!

[BigRichP]

About a 1:20

Polaris Ranger EV AWD long hillclimb - YouTube

Polaris Ranger EV AWD long hillclimb - YouTube

1 - Polaris Ranger EV 4x4 hill climb - YouTube

1 - Polaris Ranger EV 4x4 hill climb - YouTube

Both of these vids they had to get a running start. I thought that's what you guys were talking about when you said low torque.

How bout those prices I posted above?