RC-Monster Forums  

Go Back   RC-Monster Forums > Support Forums > Brushless

Reply
 
Thread Tools Rating: Thread Rating: 5 votes, 5.00 average. Display Modes
Old
  (#1)
Five-oh-joe
Guest
 
Posts: n/a
05.04.2008, 01:47 PM

Quote:
Originally Posted by glassdoctor View Post
You can't really compare a Rustler to a 1/8 buggy, even if it is a fat one. :)

The guys at tekno... think the 50mm motor will do ok in a 1/8. But I'm going to do a 60mm if I try one. I can't see how an "S" size motor can do as good a job as an "L" can, esp when we had to run "XL" size with the chinese brands.

But they (tekno) are running the 50mm. If the car is light and made for the track (30-35mph) maybe it's ok.

True (the Rustler is starting to get "fat", even with all the RPM parts on it). Just trying to give an idea of the load the motor can take though; more or less for those thinking about trying it in a 1/10 vehicle.
   
Reply With Quote
Old
  (#2)
kostaktinos_mt
RC-Monster Carbon Fiber
 
Offline
Posts: 87
Join Date: Mar 2008
Location: Rethymno, Greece
05.04.2008, 02:03 PM

i run my 36-50-2200v2 in my e-savage, which is about 4.3kg/nimh 3.9kg/lipo...
thats pretty close to 1/8 scale weight...
my 36-60-2000v2`s home is in my lgt [well above 5.2kg/12lbs]...

4pole motors are typically comparable [torque-wise] to 2pole motors of 20-30% more length [kv assumed to be identical]... thats only a dumb general rule of thumb [pun intended] learned in the early days...
not that i would suggest a 50mm motor for 1/8... on the contrary, i fully agree that 60mm is the least i would pick for most 10-15lb 1/8 conversions... hence my 'wishes' for 75mm medusas for 'beasty conversions' [read: cen gst,mammoth mt,etc].

i think i am the first of the 'truck guys' to buy and run medusa motors, so that may be the reason i managed to get a 36-60-2000v2 along with my 36-50-2200v2 back in march: there wasn`t much of demand for these back then i guess... directly from medusa and they were in stock back then... both 36-50s and 36-60s...

a word of notice; according to medusa, very few distributors have the v2 batch... most carry v1 motors, which are a quite a bit less efficient than the v2... which is an extra reason to order directly from medusa imo...

Last edited by kostaktinos_mt; 05.04.2008 at 05:33 PM.
  Send a message via MSN to kostaktinos_mt  
Reply With Quote
Old
  (#3)
Matthew_Armeni
RC-Monster Carbon Fiber
 
Matthew_Armeni's Avatar
 
Offline
Posts: 305
Join Date: Sep 2007
Location: San Diego, CA
05.04.2008, 03:09 PM

Hey guys, the 50mm Medusa ran great yesterday. Motor got to 160 at its hottest (after 15 min of practice) but mostly stayed around 140-150. Top speed was great on 4s (I was running Hyperion 5350mah 16c and MaxAmps 6000mah 20c packs) and it also had plenty of torque. My setup weighs in at about 8 lbs (I'll get an exact weight of my setup by Monday or Tuesday) and it had no problems pulling it. That may be a little heavier than other conversions but I run a clutch and mechanical brakes. My gearing was stock for the Losi, 13/48. The only problem I had was the endbell started to come out after the first qualifier. I tapped it back in and ran CA around the seam and had no more problems with it throughout the day. I qualified 6th for the A main and quickly made my way up to 4th where I was battling the only truggy that showed up to race that day. The top 3 were really good drivers, one is sponsored and lapped everyone twice so I was really happy to have a battle for 4th. At the 7 min mark my buggy slowed and sounded like I stripped a spur so I pulled it off. The center rear driveshaft popped out of the center diff cup! I was done, I thought about trying to fix it (it was a 20 min main so I coulda made up some time) but I took some video of the other 2 brushless 8ight's running (they finished 2nd and 3rd). I will try to get it posted today but it might not be until Tuesday. Unfortunately I couldn't get anyone to get video of my running the Medusa but one of the other brushless setups was running a 1509 2y (1820kv) and he had a little more torque but on the back straight I could just walk away from him, but he was a better driver so it didn't matter, lol.
Anyway, it was a fun day, good testing. If there's any questions about my setup or the other 2 brushless guys I'd be happy to answer them. I may have a pic up later of the motor mounted up.

Last edited by Matthew_Armeni; 05.04.2008 at 03:19 PM.
  Send a message via AIM to Matthew_Armeni  
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 2 (0 members and 2 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