bk warrior? 9918

[painly]

i anyone running this esc? ive done some readnig on it, and have run bk products in planes with great success. just want to see how it worked in a land application.

thanks

[studysession]

I am thinking of ordering one myself. Not 100% sure yet.

[tcolesen]

I ordered one through Jamie recently. He said that it was able to run a 7xl in his Emaxx. I should be getting mine next week some time.

[rstnboy]

I just got one and am using it in a 1/8th buggy conversion. So far, I am extremely impressed with it. I am using it with a Feigao 8L motor and the temps are just lukewarm after a full battery pack.

[studysession]

rstnboy - how many cells are you running and can you post any pics of the setup?

[rstnboy]

Right now I am using two six-cell cheap packs (powerizer) but I have some GP3300s coming to build two really good packs. I will hopefully be able to take some pics next week and post them.

[studysession]

Cool -

I am converting my Hyper 7 and still need an ESC and motor for it. I just sent Jamie at Starluck and email. Hopefully get some answers soon. Looking at the 9918 controller. Not decided on the motor.

[rstnboy]

Jamie is a great guy to deal with. That's where I bought my motor and pinion from. After I placed the order, we had a near real-time discussion via email about what my application would be and what would be the best setup to use. He even pointed out a potential failure area concerning using the stainless pinion and the stock steel Ofna spur gear. He guided me towards a plastic replacement that would serve the purpose and not wear out the pinion prematurely. Both he and Mike at RC-Monster have been great.

[studysession]

The Hyper 7 does not have an option for replacing with plastic gear. I am looking at redesigning and making my own center diff. Something to give the feel of a straight shaft threw center of car with a spur in the middle of it.

Good stuff.

[rstnboy]

The Ofna MBX R2 is what I have. I centered the diff on the chassis which took some minor fabrication work but it turned out well. I see diffs from this buggy on ebay quite frequently for pretty cheap prices. That might be an option to consider.

[starluckrc]

That is definitely an option. I also have hardened steel 15 and 16 tooth pinions that will do the job but cost about as much as a diff on ebay.

Glad you are liking the setup rstnboy. I may be running a converted buggy of my own soon.

[painly]

whos jamie?

[rstnboy]

Jamie = Starluckrc

[painly]

ah, i didnt see BK on the site. jamie email a price maybe if you get the time. i found another supplier but you guys seem much more reputable.

[studysession]

I did it. I ordered the 9918 from Starluck. Hopefully it won't take long to get here.

[tcolesen]

It shouldn't take to long to get to you unless you aren't in the US. Jamie shipped it Friday/Saturday, and I got it today (Monday). And we are also 2500miles apart! I am glad I ordered the system from him, just strongly looking forward to running it in my Rustler!

[studysession]

I am not in the US. I am in the UK. :)

[Joscoot]

Why could the warrior 9918, handle 18 cells with 99 amp max and the MGM compro 12 cells, with more max amperes (120)?

[tcolesen]

That is just how they are designed. The parts in the 9918 can handle more voltage than the MGM.

[sugs]

I've been running a 9918 in my Super rs4 electric and have been very happy with it. Very smooth and no cogging at all. I run a 4s lipo pack and a basic xl 2400 and the controller never even gets warm. Got mine from Jamie at Starluck. I even plugged in a 6s lipo pack the other day and the controller was able to handle it. I'm probably on the ragged edge for voltage though by doing that, and I was scared as hell that the controller was going to blow, but it worked fine.

[WheelNut]

On the BK site I saw that they have a 9920 avliable now, looks to be the same controller as before, but with a slightly higher voltage capacity.

[painly]

mine that i've been running for some time now in a max on 12 cells has been doing fine, but i went to 14 cells and after a few minutes it will just shut down, then when i unplug and re-plug it works again for a few minutes, is it just over amping perhaps?

[tcolesen]

BK 9920:
http://www.bk-electronics.com/catalog/product_info.php?cPath=36_56&products_id=333

[InitialVelocity]

I am running a 9918 with no problems. I have used a 7XL in an all aluminum Savage, and another 9918/7xl combo in the Prototype Cold Fusion Buggy. Both seem to work very well. I havent had a shutdown or real problem yet. It isnt a smooth as I would like it to be, but a lot of BL's are like that. I do think its smoother than my old Hacker Master Car Sport though.

[Joscoot]

InitialVelocity, how many cells?

[InitialVelocity]

12, sorry I forgot to mention.