My FLM Savage Build - RC-Monster Forums

lincpimp · 04.16.2009, 01:31 PM

Mgm and the MMM are about the best bet for a reliable 6s esc... Neither are that much smaller than the HW you already have. The quark is good for 5s max, even though it is rated for 6s. Basically the same internals as a Mamba Max...

I would mount the esc above the tranny myself, and hopefully you have enough room beside the motor to fit the 6s packs you have. What are the dimensions of the 6s lipos you have?

tonkabilly · 04.16.2009, 01:43 PM

The packs are 160mm x 51mm x 46mm. They just fit in without touching the spur. Have maybe 1/2" to spare. The biggest problem is the width. I am now seeing what you said about them being too close to the motor. Once I get the Medusa in that will be the determining factor as to what needs to be done.

lincpimp · 04.16.2009, 02:41 PM

Quote:

Originally Posted by tonkabilly

The packs are 160mm x 51mm x 46mm. They just fit in without touching the spur. Have maybe 1/2" to spare. The biggest problem is the width. I am now seeing what you said about them being too close to the motor. Once I get the Medusa in that will be the determining factor as to what needs to be done.

Well, you can put them in on their side, so they will be 46mm wide. The medusa is 36mm wide. If you can put the pack in and measure the distance between the center of the spur gear, and the edge of the pack where the motor would touch it. I should be able to calculate what distance you have left, and we will see what gearing you could run.

Also, can you list your motor and tire height again, and if you plan to run the 2 speed and mech brakes, or lock it in either gear? That will help with figuring the correct gear ratios...

I had to do this with my flm chassis and ended up with the 52t spur to get adequate clearance for the lipos.

tonkabilly · 04.16.2009, 04:30 PM

Will try that when I get home from work tonight and see what we get. As for the spur, I was already planning on using the 52 just for that reason. Have plenty of 47, 49 and 52T spurs with a 14, 15, 16, 17 and 18 pinion already so I do have some options on this.
Thanks

lincpimp · 04.16.2009, 10:51 PM

Quote:

Originally Posted by tonkabilly

Will try that when I get home from work tonight and see what we get. As for the spur, I was already planning on using the 52 just for that reason. Have plenty of 47, 49 and 52T spurs with a 14, 15, 16, 17 and 18 pinion already so I do have some options on this.
Thanks

Just let me know, Thanks!

tonkabilly · 04.17.2009, 04:07 PM

Well I think all the best laid plans just went to hell. I put the motor in and it touches the battery using 52/17 gears. I think I am going to have to start over. I think 4s will be the way to go. Now just have to figure out if I keep the Medusa (1600kv) and the ESC. From what I read the motor might be a little lacking? Should I go up to a 2000 or 2200KV motor?

lincpimp · 04.17.2009, 04:12 PM

Quote:

Originally Posted by tonkabilly

Well I think all the best laid plans just went to hell. I put the motor in and it touches the battery using 52/17 gears. I think I am going to have to start over. I think 4s will be the way to go. Now just have to figure out if I keep the Medusa (1600kv) and the ESC. From what I read the motor might be a little lacking? Should I go up to a 2000 or 2200KV motor?

For a heavy truck 6s is better... Did you try the battery both ways, as it is narrower on its side? Also you can put spacers under the motor mount, which raises it up so that the motor shaft is closer to the center line of the spur, where the spur is widest. I have seen people do this to gain clearance between the motor and batteries.

If you go with the flux center shaft for the tranny it effectively locks it in 1st, which will require a larger pinion to get the correct top speed...

I will plug some numbers in to the calc.

you have 6s lipo, a 1600kv motor and something like 6" tall tires, correct?