Help speed up my EZGO Shuttle…

[larry.a]

Hi guys, does anyone have any experience speeding up a 2007 EZGO Shuttle 6 with the stock Curtis 400 amp PDS second generation Controller model #1264-5407 and stock Motor part #73291G04. According to EZGO spec the gear ratio is 14.7:1.

This is a factory 48 volt cart with original 4 gage wire and 8 new 6 volt batteries. I have added a 6” lift and 23” tires. At present it does 17 mph with GPS. I would like to see about 25 mph.

Is there a speed chip available for the Curtis 400 amp PDS second generation Controller?

What is the most economical way to get this speed?

Any help and or recommendations would be greatly appreciated.

[mikesmotortoys]

Gaining 8 mph is going to cost some bucks. High Speed gears might be the easiest?

Not sure what you call "economical" though?

[larry.a]

>>Gaining 8 mph is going to cost some bucks. High Speed gears might be the easiest?

If I install a set of stock gears 12.5:1 that might get me +3mph and still retain some low end torque, I wouldn't want to go higher than that. I live in a flat area and just drive it on paved roads.

Can you add a speed chip or reprogram the Curtis 400 amp PDS second generation Controller?

[dougmcp]

Originally Posted by larry.a

Can you add a speed chip or reprogram the Curtis 400 amp PDS second generation Controller?[/B]

There is no speed chip for the Curtis controller.
Reprogramming Curtis controllers is difficult and probably won't do anything for speed.
Here's the Curtis programming info: http://curtisinst.com/index.cfm?fuse...tegory&catID=7

[larry.a]

Originally Posted by dougmcp

There is no speed chip for the Curtis controller.
Reprogramming Curtis controllers is difficult and probably won't do anything for speed.
Here's the Curtis programming info: http://curtisinst.com/index.cfm?fuse...tegory&catID=7

One more question before I start thinking about upgrading the controller and or motor.

Looking at a wiring diagram for the PDS II (see attachment) shows a Performance Plug on the controller, what is this used for?

Thanks for your help....

[WickedCarts]

so this in not a factory shuttle?

a pds limo cart with 48 volts and a 600 amp alltrax 23" tall tires we get 30mph...

[larry.a]

Originally Posted by WickedCarts

so this in not a factory shuttle?

a pds limo cart with 48 volts and a 600 amp alltrax 23" tall tires we get 30mph...

This is a factory stock 2007 shuttle 6 that came with a Curtis 400 amp PDS second generation Controller model #1264-5407 and stock Motor part #73291G04. It is a factory 48 volt cart with original 4 gage wire. According to EZGO spec the gear ratio is 14.7:1. The only thing that has been done to the cart is replace the eight 6 volt batteries with new T-605's and a 6” lift with 23” tires.

[pggroves]

The PDS controllers do have four different controller performance options.

All Terrain
Mild Hill
Steep Hill
Freedom

All are just different levels of regenerative braking with the Freedom option being near zero regen braking.

Look here towards bottom of post.
http://www.buggiesgonewild.com/electric-ezgo/1536-basic-ezgo-electric-golf-cart-wiring-manuals.html

[larry.a]

[QUOTE=pggroves;328312]The PDS controllers do have four different controller performance options.

This controller is a PDS II (second generation) model #1264-5407 (see attached)

[pggroves]

You've made that quite clear.

Do you or don't you have the J2 connector port on the controller?