Need help to decide
 

Hello everyone I need help deciding on a brushless controller for my truggy here is the build thread http://www.rc-monster.com/forum/showthread.php?t=3248). I already have the feigao 540c 9xl and plan on running 14-16 cells, some times more though. I am thinking of a BK 9920 or a Quark 125B. I would have already purchased the 9920 but they are not in stock. Should I save up for the 125B or stick with the 9920. What about a 12020? Would that be a happy medium between the two? Here is a comparison that I made between the 9920 and 125B.

Quark Monster Pro 125B

PROS: 125 amp
LVC
Easy mounting
Easy programming
More durable

CONS:
$280
May over heat under race conditions
Only 18 cells
May not be reliable
Newer than other controllers

Warrior 9920

PROS: $190
More popular
Easier to get
May be more reliable
20 cells

CONS:
May over heat under race conditions
No LVC
Only 99 amps
Harder to mount
Slightly fragile

This is just what I gathered from searching the forum. What controller do you think I should go with? (sorry for the long post)

I've used both the BK 12020 and the Quark 125 and I prefer the Quark by a substantial margin despite the price. There are more programming options on the Quark, cogging is less, mounting is easier, has LVC, package is more durable, and I haven't had any of the reliability issues others have found. I personally think the Quark is built better internally too. The only three negatives on the Quark would be 1) heat issues which can be solved with an added heatsink and/or fan, but the BK can get really hot too and it's not as easy to add a heatsink; 2) lack of reverse braking; 3) "only" 18 cells/6s Li.

Quark controllers can be serviced in the U.S., and BK in Germany. My own personal experience with BK's products and servicing have pushed me far away from them as an option (4 months for first damaged 9918, 6 months for the second damaged 9918).

I have the bk sent back before the quark. The quark is back and the bk is still gone. I may see my bk again some day. I like the quark a lot better. My problem happend on a 80b with 6s. I think the 125 may be ok on 6s.

First off, I'd like to thank all of the people who helped me out on this forum. I finally got everything I need to get my truggy up and running!:017: I decided to go with the Quark 125B, just bought it not to long ago, (with a little help from my mom, Thanks Mom!) I will post pics as soon as it gets here and I get everything set up. Thanks again:027: :027: :027:

Good to hear your up and running - make sure not to forget to post pics when you get some - Have fun....