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Losi 1/10 TEN-SCTE ARR 4x4 Short Course Truck Thread

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Losi 1/10 TEN-SCTE ARR 4x4 Short Course Truck Thread

Old 07-25-2011, 06:08 PM
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Originally Posted by liftedcj7on44s View Post
That would be slow. Lets do the math here.

2650kv x 11.1v=29,415 RPM
3800kv x 11.1v=42,180 RPM

That is Nominal, Actual full charged voltage on a 3s pack is typically 12.6v
2650kv x 12.6v=33,390 RPM
3800kv x 12.6v=47,880 RPM


The 3800 would be faster due to being able to turn more RPM with the lower voltage.

The only way you would see an advantage with the 2650 would be on 4s or more
2650kv x 16.8v = 44,520 RPM
2650kv x 21v = 55,650 RPM
2650kv x 25.2v = 66,780 RPM

As you can see it would take 21v(4s) to get close to the 3800 with the 2650.

the math seems right but the 3800 wouldnt last on 3s and i can imagine the 2650 would run a lot cooler....
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Old 07-25-2011, 06:08 PM
  #15407  
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Originally Posted by KingdomRacer View Post
Many racers use either 2650 (CC/Neu or Tekin/Neu) on 3s and have great success.
Absolutly correct! Runs cool, and is very powerful. And the castle 2650 is only rated to pull 80amps max.
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Old 07-25-2011, 06:09 PM
  #15408  
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Originally Posted by liftedcj7on44s View Post
Calm down, I was only kidding with you.
No chit, he's all bent.
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Old 07-25-2011, 06:11 PM
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Originally Posted by nickypoo View Post
the math seems right but the 3800 wouldnt last on 3s and i can imagine the 2650 would run a lot cooler....

Well if you want to run the 2650 on 3s then by all means go for it. If just bashing around then great but good luck trying to race in a sanctioned race with it.


Do not forget though, the 3800 can take more heat than you may think. I beat the snot out of my truck on a 3s and the 1410, never had an issue and that includes running around in the yard in some tall grass.
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Old 07-25-2011, 06:12 PM
  #15410  
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Originally Posted by liftedcj7on44s View Post
That would be slow. Lets do the math here.

2650kv x 11.1v=29,415 RPM
3800kv x 11.1v=42,180 RPM

That is Nominal, Actual full charged voltage on a 3s pack is typically 12.6v
2650kv x 12.6v=33,390 RPM
3800kv x 12.6v=47,880 RPM


The 3800 would be faster due to being able to turn more RPM with the lower voltage.

The only way you would see an advantage with the 2650 would be on 4s or more
2650kv x 16.8v = 44,520 RPM
2650kv x 21v = 55,650 RPM
2650kv x 25.2v = 66,780 RPM

As you can see it would take 21v(4s) to get close to the 3800 with the 2650.
Not everyone is a basher, I for one am a racer and the majority of racers like to be in the sweet spot of 30,000 rpm's which according to your math is where the 2650 on 3s is
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Old 07-25-2011, 06:15 PM
  #15411  
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Originally Posted by liftedcj7on44s View Post
Well if you want to run the 2650 on 3s then by all means go for it. If just bashing around then great but good luck trying to race in a sanctioned race with it.


Do not forget though, the 3800 can take more heat than you may think.
the scte is my bashing truck to run agains 8th scalers so no worries on the racing

im wondering if the extra weight will play a big factor on handling...

are there downfalls to the 2650 size motor in the losi?
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Old 07-25-2011, 06:17 PM
  #15412  
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To be honest for bashers the best setup is the castle 1415 on a 3s lipo setup.. can be setup for sick run times or crazy fast speeds.. the larger 1512 are just too much. Heck I run a 1512 1800kv in my truggy weekly racing.. and it wears out my 8ight drivetrain parts.. it'll shred up the SCTE. The 1415 is a nice middle ground. On 2s setups there is no better choice than the 1410 right now iMO.
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Old 07-25-2011, 06:18 PM
  #15413  
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Originally Posted by nickypoo View Post
the scte is my bashing truck to run agains 8th scalers so no worries on the racing

im wondering if the extra weight will play a big factor on handling...

are there downfalls to the 2650 size motor in the losi?
I personally think that the truck is heavy enough as it is with the 1410 and the MMP. Most "racers" are trying to get the truck lighter and running the 2650 would be kind of contradictory.

If it is just a bashing truck then you should not be worried about weight honestly.
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Old 07-25-2011, 06:20 PM
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Originally Posted by 8ight-e View Post
To be honest for bashers the best setup is the castle 1415 on a 3s lipo setup.. can be setup for sick run times or crazy fast speeds.. the larger 1512 and 1515 are just too much. Heck I run a 1512 on my truggy weekly racing..
Would have to agree with you there. The 1415 would be ideal on 3s.
1410 would still be faster though on 3s

Temps?? Whats that?
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Old 07-25-2011, 06:20 PM
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Originally Posted by nickypoo View Post
the math seems right but the 3800 wouldnt last on 3s and i can imagine the 2650 would run a lot cooler....
I will only ever post up actual testing that I have seen or done and the 2650 on 3s is a real sweet spot for racers who don't have to worry about lipo rules.
I myself run a CC/Neu 1410 on 2s or a Neu 1406/3Y on 4s and nobody can beat me at my home track.
My comments are mostly to correct misinformation that no 1/8 scale motors will work for racing on anything less than 4s which is completely wrong.
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Old 07-25-2011, 06:21 PM
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Originally Posted by 8ight-e View Post
To be honest for bashers the best setup is the castle 1415 on a 3s lipo setup.. can be setup for sick run times or crazy fast speeds.. the larger 1512 and 1515 are just too much. Heck I run a 1512 in my truggy weekly racing.. and it wears out my 8ight drivetrain parts.. it'll shred up the SCTE. The 1415 is a nice middle ground. On 2s setups there is no better choice than the 1410 right now iMO.
actually the 2400 on 3s is about the same as the 3800 on 2s

the 3800 is a better choice than the 2400 imo
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Old 07-25-2011, 06:24 PM
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Originally Posted by nickypoo View Post
actually the 2400 on 3s is about the same as the 3800 on 2s

the 3800 is a better choice than the 2400 imo
1415 can do 4s just so you know.
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Old 07-25-2011, 06:24 PM
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Originally Posted by liftedcj7on44s View Post
Calm down, I was only kidding with you.
What ever makes you feel better, its just a wee bit annoying though!
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Old 07-25-2011, 06:24 PM
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Originally Posted by nickypoo View Post
actually the 2400 on 3s is about the same as the 3800 on 2s

the 3800 is a better choice than the 2400 imo
actually the the 1415 is a 550 4 pole with a huge rotor big enough to run a 1/8 scale buggy w/o any issues (I do this) with the RPM's generated on 3s lipo is way more powerful and capable than a 1410. On 3s lipo it will be perfect for a basher or someone who races but doesn't have rules (2s limit) who wants more. The 1410 is a 540 motor that is by far the best choice right now w/ 2s limitations.. but a basher is not limited to 2s

PS a 1415 on 3s can still be geared up to far exceed the top torque or top end of a 1410 on 3s. Common its' a bigger motor think about it.. lol it will be cooler doing it as well.. again 1415 just is too low of a kv for 2s, it needs 3s,4s to really rip.
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Old 07-25-2011, 06:26 PM
  #15420  
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Default Neu 1512 1y (2750kv) on 3s

Originally Posted by nickypoo View Post
the scte is my bashing truck to run agains 8th scalers so no worries on the racing

im wondering if the extra weight will play a big factor on handling...

are there downfalls to the 2650 size motor in the losi?
Here is a pic with what you are asking about and a video to back it up. I am the white truck that starts off in second.

http://www.youtube.com/watch?v=dKkgH...layer_embedded

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