School Me...

Ok, so I fried the .21 in my Savage... already went ahead and sourced a used 25 motor, and ordered a bunch of other stuff to go with it. All in all, I'm dumping $200 into this....

then it started to dawn on me, again.. that I gotta keep buying nitro for this thing. I still have almost a full gallon of 20% in the garage.

So, I saw a few brushless conversions on the Savage Central site and I'm here to learn more about motors, controllers, and gearing for my application.

I'm not looking to go faster then 30-40mph, I'm not a bashing nut to an extreme.. I'm not trying to jump over a house lol .. but I'd like good low end torque but not so much where I'm gonna break drive train parts.

So far I've been recommended to go with the Feigao 9L and Warrior 9918 controller... but I'm not all on the up and up on why?

So, any help, insight, examples, etc.. is greatly appreciated. I'll be happy to have as much performance as my lil .21 without having to get raped for nitro fuel...

now beyond that, i'm just waiting for the cost to come down on the electric helis and I can dump my nitro .32 powered heli or.. go with a gasser :)

[RC-Monster Mike]

Welcome to the forums, Dan! There are a couple folks on these forums with savage conversions that will be able to help you out. If you take a look in the picture gallery, there a re a few pictures there as well. Serum will no doubt find this post and shed some of his knowledge and experience for the Savage conversions. I would say the warrior controller is for sure the popular choice, as it is reliable, durable and reasonably priced. For the motor choice, there are a couple options that would work well. The 9L, is a popular chice for the e-maxx folks, but the 10L or 7XL may ultimately be the better choice for the Savage conversion, especially with the goals you have expressed (10L will get longer runtime than 9L with same batteries, gearing, etc., with slightly less speed). How many cells to you plane to use on the conversion? This will play a factor as well. Again, welcome to the forums!

Mike

well, I got the stuff on the way to put a S25 in the savage.. I decided I'm gonna install all that, finish the break-in on the S25, burn up the gallon of fuel I have left and then sell everything off and go for the brushless conversion.

I suspect I'll prolly use 14 4000mAH 4/3A Sanyo NiMH cells.

[Serum]

Hi Dan!

Nice to see you took my advice and visited this forum! (you pm'd me at savage central, i am Buikpijn on SC)

You told me you didn't needed it to be more powerfull than the .21, well, with a BL setup, you don't have got any choice.. it IS more powerfull than the .21..

A friend of mine runs his Savage on 14 cells with a 2 speed transmission, mechanical brake and a 10L he geared it for a fast acceleration and measured a 37.5 mph (GPS) So, that would not need the kind of drivetrain hopups, like a 7XL on 18 cells, but it is one sweet, everyday bashing machine.. (that is what you are looking for isn't it?)

We raced with a savage .25 on a high percentage nitro (can't recall the number) he didn't had the 2 speed transmission in at that moment, but he accelerated faster then. and the 10L's topspeed was higher. So with the two speed transmission the difference would be even bigger on both parts!

He even managed on 15 cells to reach 44mph.. (it can do 16 cells too)

I am going to make a new motorplate the next week, i will give you the dimensions and a scaled picture.

Reason i didn't saw this thread earlier was because you didn't mentioned the magic word in the subject.. <<<NEEED BRUSHLESS POWER FOR MY SAVAGE!!>>> or something like that... ;)

what kind of average run times are you getting?

[Serum]

12-15 minutes.

But that depends on your drive style..

I once took the savage for a long walk, very offroad, more of a trial and managed to drive it for a 1.5-2 hour. It was amazing , i even gave a WOT now and then. I didn't knew it was able to do that, and shortly after i replaced the batteries, the receiver batt died.. :M: