adding extra bullets between esc/motor

[ozzie-crawl]

patrick, not a bad idea but i need to run 3 close to each other with out them shorting

[PatrickM]

Replace the e-rings with snap rings..... much smaller OD.

[ozzie-crawl]

patrick are they water proof like that, its a very clean look

[PatrickM]

Depends on the hole tolerance..... I've not had a leak that I can attribute to the connector passing through the plate, but if its a concern you can seal it with RTV. I use this as an emergency cutoff. To pass motor wires through the plate, I use 3/16"x5/16" (~5x8mm) silicone grommets. Shrink tube to increase the wire diameter (if needed), and the grommets, are installed before soldering the connector on the wire. 5.5 connectors will easily fit through the 5/16" hole in the plate and the silicone grommet is flexible enough to slide into the hole with the wire in place. Neoprene grommets are a different story. Here's a pic of the installation on my VS-1.

[properchopper]

This thread has me re-thinking the pass-through issue. Next build I'll solder the "notched-style" connectors together and pass and JB seal them, with the female exiting on the rear of the box. Looks like it'll work & clean up the install.

[PatrickM]

Counting connectors is not the same as counting laps, Tony.....

When it comes to connectors, less is better.... none is better than one, one is better than two, etc.. The car guys hard wire their setups for a reason... because it is more efficient... and it is a noticeable difference, in cars anyway..... The performance difference isn't as noticeable in our boats because of all the driveline and other variables, but I still try to minimize the number of connections. The only reason that we don't hardwire our boats is for convenience, and speaking for myself, I'm just too damn lazy!

Now that I've shot my mouth off, Tony will put a double connected boat together and kick my butt with it!.... LOL

[properchopper]

Counting connectors is not the same as counting laps, Tony.....

LOL

Here's the deal Pat. I went out and bought a lap counter !! Now, if you kick me in the nuts everytime you complete a lap I'll click the counter . Should work !

[properchopper]

I measured the resistance of a mated pair of 5.5 connectors. If I did it right { I haven't mated anything in a long time }, it was 0.20 ohms. An equal length of 12 gauge wire was also 0.20 ohms. Seems that adding an extra pair of connectors in-line shouldn't matter.

[properchopper]

Actually, once the meter stabilized, the wire resistance was 0.10 ohms. Still probably not a big deal.

[Alfa Spirit]

A bullet connector isn' t a problem especially with 5,5mm pk, the best choice and you can spay a KF contacts will be better

[PatrickM]

The only way to accurately measure the resistance of connectors is with a precision bridge/shunt setup.... and even the laboratory data is not always an indication of how the connector will perform at high current flow. If your 2/10ths of an ohm (0.2x6 for dual connectors between ESC and motor) DVM measurement is accurate, those who have written connector comparison articles for the magazines are full of bull..... a couple of these articles claim 0.001 ohms for Deans connectors and we all know that a high grade bullet is much better than a Deans. Yeah I know....

Alfa, I'm not familiar with the KF brand connectors, but for high amp setups I try to stick with LMT or BK brands.... they seem to have a more precise fit than most of the other brands.

[ozzie-crawl]

iam looking at it this way,on the vs1 setups a lot a people are using the stock ul1 motor/esc.if iam rite the origonal setup runs 2x deans to the battry wich get swapped out for a single set of bullets,how much resistance is removed just from that.
have a look at the shultz 40/160s they dont have the motor wires soldered directly to the esc but have bullets soldered directly to the board adding a pair of bullets.
i realize less is better but in real world conditions is it really going to make any diffrence
i think i will do the same as tony femal to male joined then epoxy in to place
it will be water tight and so much easier to remove esc.

[BILL OXIDEAN]

The only way to accurately measure the resistance of connectors is with a precision bridge/shunt setup.... and even the laboratory data is not always an indication of how the connector will perform at high current flow. If you're 2/10ths of an ohm (0.2x6 for dual connectors between ESC and motor) DVM measurement is accurate, those who have written connector comparison articles for the magazines are full of bull..... a couple of these articles claim 0.001 ohms for Deans connectors and we all know that a high grade bullet is much better than a Deans. Yeah I know....

Alfa, I'm not familiar with the KF brand connectors, but for high amp setups I try to stick with LMT or BK brands.... they seem to have a more precise fit than most of the other brands.

Perfect info, i've been thinking about resistance and plugs lately and wondering where I should get super high quality units. I trust LMT, I was gonna use Neu

[Jeff Wohlt]

Neu plugs are China as well.

[BILL OXIDEAN]

Neu plugs are China as well.

Thanx Mr. Wohlt I suspected that..