NEW Pro Boat "ZELOS 36" Twin Cat

[Keagan-Z06]

I don't know, Apexpredator is having some good runs with his Voracity in wind that he says is gusting to 30mph.
https://www.youtube.com/watch?v=NRCj...ature=youtu.be

Not implying the boat can't handle it but i have worse sea conditions than I posted in an earlier video. Mother Nature not having it this week.

[JPriami]

Well I ordered the dynamite program box. It's not doing anything. Just shows the dashes and that's it.
My esc is the DYNM3876 vs the DYNM3875 it states in the manual. Also I can't find this esc program guide (DYNM3876) to do it manually. I'll try the DYNM3875 manual.

20160325_111628.jpg

[Keagan-Z06]

I assume you got this to play with timing?

[JPriami]

I got it to double check settings.

I figured it out. I had to manually program each esc with the pistol. After that the program card worked.

[Rafael_Lopez]

I got it to double check settings.

I figured it out. I had to manually program each esc with the pistol. After that the program card worked.

That is weird, I have never had that be the case, where you have to program via TX before you can use the card.

Could it be that you had the connections in 180* from how they should be plugged in to the ESC? If you plug the card in backwards you usually just get hash marks.


**Edit, now that I am looking at your picture better, did you plug the ESC lead that goes in to the RX in to the card? The card plugs in to the 3 pins sticking out near where the switch wires come out of the board, not the ESC RX lead.

[Rafael_Lopez]

Program card plugs in here. Don't mind the rust on the screw, I ran in salt water.

[JPriami]

Rafael, At first I tried the esc leads. Then I tried the esc prongs that stick up like in your picture. Neither method worked on either esc. I gave up on the program card. Then programmed them manually. After that out of curiosity I plugged the card back in & only then would it work. It was very odd. I've programmed many esc's before. This was a first.

[arrover]

I finally had some time and smooth (glass) water to do some tuning on the stock boat. I still can not get the porpoise/bounce tuned out of this thing. It's bad enough that it concerns me to hold full throttle for very long but I did GPS the first setup below at 55._mph. Here's what I tried this morning:
- Struts level with rear pad, Four 3S 5000mah packs = bounce
- Struts level with rear pad, Two 3S 5000mah packs all the way back = bounce
- Struts almost imperceivably negative/down, Two 3S 5000mah packs all the way back = bounce
- Struts positive/up a small amount, Two 3S 5000mah packs all the way back = bounce
- Struts negative/down a noticeable amount (more than first try negative), Two 3S 5000mah packs all the way back = bounce
- Struts negative/down a noticeable amount (more than first try negative), FOUR 3S 5000mah packs = bounce

I'm not quite sure where to go from here. I thought the four packs would settle it down but it didn't seem to help much. At some points I thought the boat was riding a little wet but bringing the struts up a little just made it wheelie/bounce more at speed. I'm new to tuning a cat and I guess I need a little help!

[Rafael_Lopez]

Do not mount your packs far back. If you mount 4 packs, one set has to be buried inside, under the deck and the others right behind. You have to keep the packs as far forward as possible. Set the struts level again and give it another go. The manual explains where to start with LiPo placement and more forward from there if you get bounce, not back.

[Rafael_Lopez]

Notice how far I run my packs. This is how I ran it at the last NAMBA event.

[arrover]

I completely understand Rafael. That's how I have run them in the past on this boat and it porpoises. Level struts, two 3S packs all the way under the deck. Exactly how you have yours. It's very strange. I was trying different setups today just to see if anything else worked.

[Rafael_Lopez]

I may be misunderstanding. Bouncing woul be the boat teetering off balance on the struts, slapping the water as it run; trying to flatten out. Porpoiseing could be cause by running too nose heavy, too much forward weight and negative strut angle. It definitely sounds like a CG issue, unfortunately it's hard to pinpoint over the web. :/

[Keagan-Z06]

I finally had some time and smooth (glass) water to do some tuning on the stock boat. I still can not get the porpoise/bounce tuned out of this thing. It's bad enough that it concerns me to hold full throttle for very long but I did GPS the first setup below at 55._mph. Here's what I tried this morning:
- Struts level with rear pad, Four 3S 5000mah packs = bounce
- Struts level with rear pad, Two 3S 5000mah packs all the way back = bounce
- Struts almost imperceivably negative/down, Two 3S 5000mah packs all the way back = bounce
- Struts positive/up a small amount, Two 3S 5000mah packs all the way back = bounce
- Struts negative/down a noticeable amount (more than first try negative), Two 3S 5000mah packs all the way back = bounce
- Struts negative/down a noticeable amount (more than first try negative), FOUR 3S 5000mah packs = bounce

I'm not quite sure where to go from here. I thought the four packs would settle it down but it didn't seem to help much. At some points I thought the boat was riding a little wet but bringing the struts up a little just made it wheelie/bounce more at speed. I'm new to tuning a cat and I guess I need a little help!

Thats a lot of testing right there. I certainly wouldnt have the patience to try all that in one day. How long did you spend at the lake?

[zooma]

Thats a lot of testing right there. I certainly wouldnt have the patience to try all that in one day. How long did you spend at the lake?

A related question: How many guys are in the pit crew?

[arrover]

Haha! You guys are soooo funny! No, it wasn't to bad because that was only three changes to the strut angle. The rest was battery placement. Run a few straights back and forth and come in to try something else. It was calm and the sun was shining so it was pleasant.