Rob & Zen, catching up with you both, and narrowing in on a permanent solution.
based on reviewing those links, it sounds like I have to spend about $300 or more to switch to lipo, and that lithium ion setup was $500 and was only 20ah. Logically, I don't think I'm ready for either expense considering I still have to buy the motor and controller.
What we haven't discussed, is there any good reason why I can't use my existing 48 volt SLA setup that's already wired and done on my cart, with that 1600w 48v 5600rpm wireless motor and controller? Compatible? Good run time? It seems that route would be most economical, and offer decent performance. Feasible? And, small note, would the brushless controller work with my stock thumb throttle? (these seem hard to find and I don't want to fabricate a new steering wheel)
Our staycation starts Sunday night, and goes thru the following Sunday. I have kayaking, archery, shooting range, gymnastics, fishing, swimming, and riding our go karts planned
. So we have other things to do, but ideally I'd like to have both dune buggy's in their permanent setups done for at least the last half of our 7 days, as it's nice to pull out of the garage and directly on to the trails that make for a 30-45min nature ride. I can make that happen as long as I can finalize both setups now, source parts domestically, and buy them tomorrow, paying 2 day shipping.
To clarify, her setup was MY1020 24v 500w running at 36v using a 40a controller, and it reached ~15mph. When her controller fried, I bought a YK43b for it (before I knew better) because it was ~ the same cost and simple to wire, but I did not install yet. She was perfectly happy with the acceleration of her setup before both motor and controller fried due to a failed grommet, but just wanted 2-3 more mph.
My setup...it was so fast off the line that power was unusable. I have a video of me flipping it LOL, but I'm embarrassed to post publicly
. Here are some stills of that "excursion" LOL:
You had to slowly roll on the "lightswitch" throttle (taking away the fun), and then once it got going you could open it and you were already topped out at ~17mph. I also wanted 2-3 more mph. I only rode it 2 days, ~30-45min each day, and was real easy on it due to heat. (and particularly after it landed me on my back LOL)
robnewyork wrote: the low amperage controller combined with the 500 watt on her kart will be wayyyyy slower than it was with the yk43b , same top speed (amps =torque volts = rpm )
the brushless motor with a good controller will be faster than her 30 amp controlled 500 watt kart for sure, even on 40 amps..the brushless controllers have a wider variety of amperage options than the brushed for some reason.without doing a serious motor nothing will be faster than ur 900 watt currie on the yk43b , im referring to acceleration , not top speed
long term id do the brushless setup zen suggested on hers and either the kelly -currie combo or industrial yk42-4 on urs
Narrowing down to final choices, I already have the 900w currie, so ideally, that will be one setup running 36v using a proper controller. If you don't think something like this: http://www.monsterscooterparts.com/trsc ... oller.html
will match it well and get good performance out of it, what I can do is temporarily use the YK43b at 24v (or 36v and going easy?) and then order that Kelly controller from China so I can fine tune and maximize performance. Thoughts on this?
This leaves the 2nd cart which I have a 48v setup for. I'm hoping that I can
1. leave it at 48v using SLA's and go with that 48v 1600w 5600rpm brushless motor for $99, and the controller he sells for $50 (unless there's a better one) and be done with it.
2. Remove 1 battery to drop to 36v, and go with your YK42-4 with that industrial motor you found.
Thoughts on either?
I'm thinking that based on what I've read, ranked in order of fastest down: YK42-4/industrial > Kelly/Currie > 48v Brushless...is that correct?
Whichever of the 2 setups I end up with, I guess I can just use the faster one and fine tune gearing to make sure I can get in front of her if need be.
Final thoughts? I'd like to order everything tomorrow and cease monopolizing both of your time
Lastly, again, my sincere thanks for both of your help.