RC-Monster Forums  

Go Back   RC-Monster Forums > Support Forums > Brushless

Reply
 
Thread Tools Rate Thread Display Modes
Dog runs faster
Old
  (#1)
dadnjesse
RC-Monster Carbon Fiber
 
Offline
Posts: 69
Join Date: Apr 2007
Dog runs faster - 09.18.2007, 05:53 PM

I have a LSP that I just converted to electric, I'm using a NEU 1515/2y with a MGM 16024 on 5 cell 5000 mah FlightPower lipo. I can't believe how slow it is! I don't have an exact speed but I'm not new to this and I can tell it's slow, maybe 25MPH.
Am I using the wrong motor, maybe the 1515/1y would be better? Or am I just not using enough cells?
Thanks Tom
   
Reply With Quote
Old
  (#2)
wallot
RC-Monster Titanium
 
wallot's Avatar
 
Offline
Posts: 1,025
Join Date: Jan 2007
Location: Prague, Czech Republic
09.18.2007, 06:06 PM

1515/2Y has 1100rpm per Volt so you should use at least 8S Lipo. your mgm can handle that so just increase cell count just get 3cell flightpower pack, connect it in series and go


Radek
V4 D8 - RX8, XERUN 4168SD
F1-09 - Tekin RS Pro, 17.5t Redline, 2S LiPo
Sakura Zero S - LRP, Saturn 20T, 2S LiPo
*EX-10 Eurus*
 Send a message via ICQ to wallot  
Reply With Quote
Old
  (#3)
squeeforever
RC-Monster Mod
 
squeeforever's Avatar
 
Offline
Posts: 6,254
Join Date: May 2005
Location: Baton Rouge
09.18.2007, 06:35 PM

Ditto. You got the wrong wind for sure if your only gonna run 5S.
  Send a message via AIM to squeeforever  
Reply With Quote
Old
  (#4)
jnev
RC-Monster Brushless
 
jnev's Avatar
 
Offline
Posts: 2,864
Join Date: Jan 2007
Location: SoCal
09.18.2007, 07:25 PM

What they said.

If you want to stick to 5s lipo though, the Neu 1515/2.5d would work well on that voltage.


   
Reply With Quote
Old
  (#5)
What's_nitro?
Soldermaster Extraordinaire
 
What's_nitro?'s Avatar
 
Offline
Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
09.18.2007, 08:03 PM

That, or start an RC towing company. I'm sure that motor has hella-torque on 5s, nevermind 8s.
   
Reply With Quote
Old
  (#6)
zeropointbug
Z-Pinch racer
 
zeropointbug's Avatar
 
Offline
Posts: 3,141
Join Date: Nov 2006
Location: SK, Canada
09.18.2007, 10:42 PM

Yup, you should have got a 2.5d with 5s (1700kv.), maybe you should add more cells if you have room/weight for it?


“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens
   
Reply With Quote
Old
  (#7)
glassdoctor
TEAM FUSION
 
glassdoctor's Avatar
 
Offline
Posts: 2,041
Join Date: Jul 2006
Location: Iowa... Hawkeye country
09.19.2007, 02:51 AM

I think you can get by on 6s. Compare to a motor I run in my CRT:

My 1515... 1700kv @ 4s = 25,160rpm
Your 1515..1100kv @ 6s = 24,420rpm

That's pretty close. Mine runs about 30 mph geared 12/49... and it starts to really wake up @ 14/49... faster than a nitro at that point I think. I don't know what spur you have or what ratio the diffs are in your LSP but I think you will be happy if you go 6s and gear up.

Try gearing up a lot on that 5s pack and it will start to wake up.

That said... 8s would be pretty cool and very fast... and you can keep the gearing low too. That would kill a nitro even when geared like 12/51


Jammin CRT MM/Neu 1515 1700kv
Losi 8IGHT MM/Neu 1512 1900kv
Kyosho 777
T4 MM 5700
B4 LRP
XX4 MM 7700
old losi xxcr, MM4600 4s lipo 70mph+

Last edited by glassdoctor; 09.19.2007 at 02:55 AM.
   
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump







Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vBulletin Skin developed by: vBStyles.com