Thermal Issues with the New Traxxas Spartan

[Brushless55]

"And I changed out the stock TRX (are they rated at 30 amps?) connectors to 4mm gold bullets rated at 93A. "

Not a good idea. The bullet connectors do not have the surface area of the TRX connectors. Actually, the total surface contact area of the TRX and Deans is just about the same. That means you will burn up something in the boat before you have a problem with the connectors. Try bursting over 100 amps.

Castle has some bullet connects that they recommend for their motors but remember they have three connectors there vice two for the TRX and Deans. Also, the Castle bullet connectors are NOT the banana type. Most all of the bullet connectors out there are bullet type so you actually have to worry about three pieces making full contact, which they don't.

take a read around on the WWW bro
bullet connectors work much better than deans all the way around
bullets can handle much more amps that deans or the traxxass ones

[skubacb]

Bullet connectors especially the banana type do not have the surface contact area of the Deans or Traxxas.

Second why change if the connectors are not getting hot or even warm. In my boat the wires are warming before while the connectors are cooler.

Third, I have not seen any testing that shows that banana connectors are more efficient.

But use whatever you want.

[Brushless55]

and about most of us on these forums use bullet connectors because they are so superior
and deans suck for high amp FE boats!

[dag-nabit]

take a read around on the WWW bro
bullet connectors work much better than deans all the way around
bullets can handle much more amps that deans or the traxxass ones

A search on the web will show that not all sites rate connectors exactly the same. But in general you will find:

Deans Ultra - Rated 75 - 85 amps continuous
Traxxas - Never seen an official rating, but usually shown as around 100 amps continuous
EC5 - Rated at 120 amps continuous
6 mm bullets - rated at up to 200 amps continuous.

If the 4mm bullets used are indeed rated at 93 amps you don't really gain anything over the TRX connectors rated at 100, but for all intents and purposes are the same as TRX, and should work fine.

Kevin

[Diesel6401]

Bullet connectors especially the banana type do not have the surface contact area of the Deans or Traxxas.

Second why change if the connectors are not getting hot or even warm. In my boat the wires are warming before while the connectors are cooler.

Third, I have not seen any testing that shows that banana connectors are more efficient.

But use whatever you want.

WOW, all I can say is good luck. I think being focused on "surface area" has clouded your judgment. In Car/Planes?Heli's those plugs are fine, but in boating it's only a matter of time before you will find the problem with those plugs. Like mentioned before there IS a reason seasoned and race vets don't use those plugs. All your information you need is on the web and prob on this site. Just use the search function at the top of the page.

[Diesel6401]

A search on the web will show that not all sites rate connectors exactly the same. But in general you will find:

Deans Ultra - Rated 75 - 85 amps continuous
Traxxas - Never seen an official rating, but usually shown as around 100 amps continuous
EC5 - Rated at 120 amps continuous
6 mm bullets - rated at up to 200 amps continuous.

If the 4mm bullets used are indeed rated at 93 amps you don't really gain anything over the TRX connectors rated at 100, but for all intents and purposes are the same as TRX, and should work fine.

Kevin

Good information.

I personally only use 5.5mm bullets and up. Imagine using deans on pursuit that spiked at 170amps that wouldn't be pretty...

[skubacb]

Horizon makes the EC5 but does not give it a rating that I can find. (Does not mean you are not correct. I just can't find where they rate it.)

Both the Traxxas and the Deans have about the same contact area so I would expect them to perform the same. From my use that seems about correct. But no I would not use them for 100 amps continuous. If I really loved them I would use two.

Take a look at the bullet connectors that Castle sells. They are not banana connectors. That is my objection to some bullet connectors. You have the male the female and around the male a collar. That makes two contact areas that must be right versus one for the TRX or Deans. The Castle bullet connectors eliminates that.

BTW for those that cry about taking Deans apart just dimple the outside after doing the soldering. Also, solder the Deans while the male and female are plugged together. Some people have slightly melted the case while soldering and that is what causes them to be tight. It also makes for a less efficient connection.

Finally, look up Deoxit (used to maintain connectors). The contacts need to be maintained. Deans has been around for 20 years and surely some of those connections need cleaning.

Finally, back to subject. I do hope that just enlarging the rudder, nipple, and outlet it enough to cool the Spartan. I am planning on new tubing and the new cooling jacket. If not destroyed already. Not sure after my last lake run it over heated.

[spartanonfire]

Finally, back to subject. I do hope that just enlarging the rudder, nipple, and outlet it enough to cool the Spartan. I am planning on new tubing and the new cooling jacket. If not destroyed already. Not sure after my last lake run it over heated.

Did all that and burned up my first motor. Went to a dual pickup rudder with separate cooling for the motor and ESC. Motor number 2 is headed back to Traxxas. Good luck.. you're gonna need it.

[Alexgar]

Ec5 are coservetively rated at 120 I use them on a cc2200 kv with a t180 on a df29 spinning a x646 which draws a high amp load and haven't seem a problem yet I bought tons of them when they first came out and wouldn't stay in stock at my lhs but once I do see a problem I'll move up to cc 6.5s as I've been pretty impressed with there motors durability

[Brushless55]

WOW, all I can say is good luck. I think being focused on "surface area" has clouded your judgment. In Car/Planes?Heli's those plugs are fine, but in boating it's only a matter of time before you will find the problem with those plugs. Like mentioned before there IS a reason seasoned and race vets don't use those plugs. All your information you need is on the web and prob on this site. Just use the search function at the top of the page.

Bro I hope to build a (50cc) brushless 88" Edge 540 soon on 10s, and I will be using bullets for that one!
something close to 3500watts
http://www.aero-works.net/store/detail.aspx?ID=378

[Diesel6401]

Bro I hope to build a (50cc) brushless 88" Edge 540 soon on 10s, and I will be using bullets for that one!
something close to 3500watts
http://www.aero-works.net/store/detail.aspx?ID=378

SICK BRO... I need some flying skills. You would think being in aviation I would be able to fly... Not so much. First flight this year I crashed lol....


50cc ..... need a motor?!? http://www.hobbyking.com/hobbyking/s...dProduct=14426

[Brushless55]

SICK BRO... I need some flying skills. You would think being in aviation I would be able to fly... Not so much. First flight this year I crashed lol....


50cc ..... need a motor?!? http://www.hobbyking.com/hobbyking/s...dProduct=14426

yeah, I'll be trying one of HK's motors for it