For 4S a 2200Kv would be an okay choice as well!

I will be running 5S. By the way...I see an awful lot of traffic in the forums regarding problems associated with the Quark 125. I think I have all my bases covered and should be fine, but would you guys please give me one last sanity check? Also note that my maxx is a heavier truck....

I'll be running:

• Quark 125 with heat sink and two fans
• Dimension Engineering Sport BEC
• Neu 1515 2.5d/F motor
• Evo 25 5000 mah 5s1p Lipo
• Lightning Stadium Pro 1/8 scale diff gears
• 5.5" tires
• 72T 32P spur gear
• 16T 32P pinion gear

If my research is correct, everything should run cool as a cucumber.

Looks good. I run 4s on the 1515 1/y and it works real good. Keeps my esc at low temps and the motor barely gets hot. I also have run it on 5s at times too, gets a little warm for my liking though, but that 5s really screams!!!!!!!

Just make sure that you do something to bleed the heat away from the Quark. Most use a combination of the RC Monster heatsink and fans. I just mounted mine on a piece of 1/4" thick aluminum that was mounted to the chassis, effectively making my whole chassis a heatsink. I didn't use any fans, but it seemed to be working. I did't get to run my Quark for long though. I had to send it in.

What happened to it?

I was a defective unit. I don't think I ran it enough to break it. I sent it to them on Monday and haven't heard anything yet. I don't even know if they will warranty it, because I told them that I was running it in an 8ight; and the guy I talked to seemed to be big on reminding me that the Monster Pro is not designed for 1/8 scale applications. I'll have to see.

I've been having a bad run of luck with equipment lately, so you really shouldn't consider my experiences as typical. MANY are running the Quark in their conversions and have had no problems, as long as they took care of the heat.

Well, sorry to hear about your problems....I read and learn...that's what these forums are all about. Thanks.

Then why in the heck would they rate it for 6s??????????? you certainly would not run 6s in an RC18T!!!! Maybe he had no idea what the heck he was talking about. I think some run it 1/8th scale don't they from here?

Thanks. What gets hot when you run 5s on your quark?

Battery?
Motor?
ESC?

the rear 3 wires, and the one side of the quark, easiest way to describe it is the side that the batt wires on on. It's not terribly hot though, more than my 4s is...but my kv is 2200 on the motor as well, so if you had a lower kv, the temp would be better I would think.

Sorry for all the questions...but are you running the RC Monster Heatsink and fans?

If the side with the batt wires is heating up, the source of the extra heat is likely the capacitors. Even the guys at S&T will recommend that you add extra capacitors to the Quark when running it in a large scale truck. When I called about my setup, running 5S with an 8XL, Frank said that extra caps are very much recommended and the more the merrier. Since I've added the extra caps to my MM and Quark speed controllers, they do run significantly cooler. The MM is also handling gearing that it wouldn't handle before without cogging.

Here is a pic of the first cap bank that I made, wired to a MM.
http://i154.photobucket.com/albums/s...r/DSCF0259.jpg

[QUOTE=AAngel]If the side with the batt wires is heating up, the source of the extra heat is likely the capacitors. Even the guys at S&T will recommend that you add extra capacitors to the Quark when running it in a large scale truck. When I called about my setup, running 5S with an 8XL, Frank said that extra caps are very much recommended and the more the merrier. Since I've added the extra caps to my MM and Quark speed controllers, they do run significantly cooler. The MM is also handling gearing that it wouldn't handle before without cogging.




Hmmm...my hats off to you for figuring out how to add all those capacitors. I am not afraid of performing custom mods to my trucks, but I just don't think it should be necessary (adding capacitors). I have several CC speed controls and have never had any problems...but then again I don't push them to the limit either. However, I have talked to Bernie at Castle a number of times and he always has a professional answer for me and I always walk away amazed that their products perform better than what their specifications indicate.

The Quark 125 is my first S&T product. The gripe I am building to is this...Why on earth would an company rate an ESC at 6S and tell you to add capacitors? That's crap.:mad:1 I'd rather build my own from the ground up.

Here is what I run on mine.
http://i56.photobucket.com/albums/g1...r/PC281266.jpg
http://i56.photobucket.com/albums/g1...r/PC281258.jpg
http://i56.photobucket.com/albums/g1...r/P1021284.jpg

No prob on all the questions, better to ask now then "poooooof" later! LOL