What to do... - RC-Monster Forums

**What to do... -** 01.14.2007, 08:42 PM

Ok, I'm sort of in a pickle here...

I have my BL LSP with a 9xl and 5s(one 2s and one 3s) 4000 maxamps lipos. I am very happy with the power. I also have a BL rc10gt and I share lipos between the two cars now, and it gets kind of annoying. Also to charge the batts with my Duretrax Ice I have to charge one at a time, and that takes a long time. I think I would like to buy more lipos for my LSP, either 8k or 10k. So here's what I came up with:

Situation 1:
Get new charger (mrc 989) $140
10k single 5s pack (maxamps) $260
Keep 9xl

Total: $400:019:

Situation 2:
Keep my Duratrax Ice
8k single 4s pack $220
Get new motor 7xl or 8xl to run 4s on $90 (don't think 9xl would be too powerful on only 4s, what do you think?)

Total: $310

Also how would run times be with the 7 or 8xl with 8k lipos? I get about 30-35 min. with my 9xl 5s 4k setup...

Thanks!

Bye:018:

coolhandcountry · 01.14.2007, 08:51 PM

The 9xl will have power just not sure on the speed.

09:43 PM

Quote:

Originally Posted by coolhandcountry

The 9xl will have power just not sure on the speed.

So, could I gear up? or something else?

Anyone run a 7xl or 8xl on 8000 mah 4s lipo? how was the power and runtime?

Thanks!

Bye:018:

01.15.2007, 01:35 PM

Hey, I got a couple more questions.

If I get a 4s 10k lipo and I charge it on my Ice at 8 amps, how long would it take? Hour and 20 min.? Also, how would the Neu 1512 2.5d/f do in my LSP on 4s-5s lipo?

Thanks!

Bye:018:

GorillaMaxx360 · 01.15.2007, 02:59 PM

Quote:

Originally Posted by cemetery gates

Hey, I got a couple more questions.

If I get a 4s 10k lipo and I charge it on my Ice at 8 amps, how long would it take? Hour and 20 min.? Also, how would the Neu 1512 2.5d/f do in my LSP on 4s-5s lipo?

Thanks!

Bye:018:

(will the neu work)good. i would go for ice and 2 8000mah they will be lighter and have a good amount of runtime 40/45 minutes and a 8xl should work just fine but heatsink is needed and a fan wount hurt.

01.15.2007, 06:40 PM

What are everyones opinion on a good motor for 4s?

7xl or 8xl?

Neu 1512 2.5d/f or Neu 1515 1y/F

1940 7/8?

Has any one run the 1512 in a buggy/truggy before? If so, how did it do? I really like the Neu 1512 2.5, light and powerful. How would it compare to an xl motor?

Thanks again:018:

coolhandcountry · 01.15.2007, 02:36 PM

To fully get it charged I would say close to an 1.5 hr. Cause it slows down as it gets closer to max input.

Sylvester · 01.15.2007, 07:37 PM

I think id stick with the ice and get the 8K pack.

You could run the 9xl on 4s, and just gear up. Im running a 1950/7T motor (really low turn) on 4s geared at 16/44 and im yet to test it (damn snow!).

01.15.2007, 07:44 PM

Quote:

Originally Posted by Sylvester

I think id stick with the ice and get the 8K pack.

You could run the 9xl on 4s, and just gear up. Im running a 1950/7T motor (really low turn) on 4s geared at 16/44 and im yet to test it (damn snow!).

I will probably get the 4s 8k lipos soon. I could gear it 18/46 (already have the gears)

18/46 on 4s gives me around 38mph (Brian's speed calc.)

15/46 on 5s gives ma around 39mph

(motor is a 9xl with batts at 3.7v)

Sylvester · 01.15.2007, 07:46 PM

I tried brians calculator and it gave me 39mph with a lehner 1950/7, 3.7V (4 cells) geared 16/44. Sounds alright for now. Might get another 2s pack for 6s, but will be too much for the track!

01.15.2007, 07:52 PM

Quote:

Originally Posted by Sylvester

I tried brians calculator and it gave me 39mph with a lehner 1950/7, 3.7V (4 cells) geared 16/44. Sounds alright for now. Might get another 2s pack for 6s, but will be too much for the track!

For sure, 6s is almost too much IMO, I think 5s with a 9xl is pretty sketchy at times. Its funny how much more power we brushless users have over the nitro heads:005: ...

Sylvester · 01.15.2007, 07:58 PM

It is! :)

Look at us, saying we have too much power, when all those nitro guys are saying "damn man, this 18os tm motor is WEAK." :) For us we just add more batteries. :D

coolhandcountry · 01.15.2007, 07:58 PM

The 1512 2.5d is a good motor for a emaxx.
I get good run times as well.
I have run from 4s to 6s on it as well. It warms up on 6s but not real bad.
I would buy it again for sure.

01.15.2007, 08:12 PM

Quote:

Originally Posted by Sylvester

It is! :)

Look at us, saying we have too much power, when all those nitro guys are saying "damn man, this 18os tm motor is WEAK." :) For us we just add more batteries. :D

Yeah, our systems are very flexible...

Quote:

Originally Posted by coolhandcountry

The 1512 2.5d is a good motor for a emaxx.
I get good run times as well.
I have run from 4s to 6s on it as well. It warms up on 6s but not real bad.
I would buy it again for sure.

Thanks for the reply, I got your PM...

Bye:018:

glassdoctor · 09:05 PM

I have run a 1512/1900kv on 4s in my buggy and a little bit in my truggy... it has plenty of balls imo. In my buggy, I gear it 18/46 for some bashing and it has tire-shredding torque still.