Go Back  RCU Forums > RC Cars, Buggies, Trucks, Tanks and more > RC Electric Off-Road Trucks, Buggies, Truggies and more
Reload this Page >

if i were going for highest top speed..which bl system under 300

Community
Search
Notices
RC Electric Off-Road Trucks, Buggies, Truggies and more Discuss electric RC off-road, buggies & trucks here. Also discuss brushless motors, speed controllers aka ESC's, brushed motors, etc

if i were going for highest top speed..which bl system under 300

Thread Tools
 
Search this Thread
 
Old 05-13-2011, 03:24 PM
  #1  
laextreme
Senior Member
Thread Starter
 
Join Date: May 2010
Location: slidell, LA
Posts: 112
Likes: 0
Received 0 Likes on 0 Posts
Default if i were going for highest top speed..which bl system under 300

well i took my duratrax evader st apart a while back and got out of rc but i recently bought a mini erevo and got back in. i want to use my duratrax chassis as a speed demon setup. im going to be using the brushless emaxx tranny to power it as the older chassis wont be able to stand the power of a large brushless system. is there a better system than the mamba max pro w/ 2200kv motor for under 300?? my goal is 100mph
Old 05-13-2011, 04:11 PM
  #2  
guver
Senior Member
My Feedback: (325)
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

With high speed tires and 6S or less I doubt the 2200 will go 100 (even on paper) How about the 9000 kv castle?
Old 05-13-2011, 05:32 PM
  #3  
xerxes
Senior Member
 
xerxes's Avatar
 
Join Date: May 2011
Location: cicero, IL
Posts: 716
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

iv gota speed t by losi (ugh).
mmp on 9000kv. thinkn bout ditchn da 9000 on 2s n optn 4 4pole 6900 on 3s. should squeez out about 10mph +.
plus lowr kv meens longr run time
Old 05-13-2011, 05:52 PM
  #4  
TheyDontWantMusic
Senior Member
 
Join Date: Dec 2009
Location: SA, AUSTRALIA
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300


ORIGINAL: guver

With high speed tires and 6S or less I doubt the 2200 will go 100 (even on paper) How about the 9000 kv castle?
***?


9000kv on what? they won't handle more than 2s for very long.
Old 05-13-2011, 07:51 PM
  #5  
guver
Senior Member
My Feedback: (325)
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

It's pretty easy to plug numbers into this calc and use whatever gets you the desired speed. http://www.scriptasylum.com/rc_speed/top_speed.html

Maybe the op wasn't going to use a diff. Maybe the e-maxx tranny bolts in sideways? If that's the case then 9000 kv might be way too high and 2200 might be ok. First one has to set some preferences such as tire diameter, layout, voltage and such.

Old 05-13-2011, 08:34 PM
  #6  
laextreme
Senior Member
Thread Starter
 
Join Date: May 2010
Location: slidell, LA
Posts: 112
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

well after looking at the ratios and such, i think i am going to use the rustler tranny and  then get some hpi phtlines which are 4' diameter. if i go the 2200 route i plan on running 6s so 22.2 volts and im not sure what you mean on the layout.
Old 05-14-2011, 03:35 AM
  #7  
guver
Senior Member
My Feedback: (325)
 
Join Date: Mar 2003
Location: LaGrange, OH
Posts: 14,857
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

By layout I just meant whether or not you're going to use a diff or such. Eliminating the diff would essentially gear it up 2-3X. It sounds like you'll use the rustler trans/diff and 4" tires with about 40-50,000 rpm unloaded. What speed on paper does the calc say about that?

I can't wait to see the video of you handling the evst at speeds over 60 mph.
Old 05-14-2011, 07:20 AM
  #8  
laextreme
Senior Member
Thread Starter
 
Join Date: May 2010
Location: slidell, LA
Posts: 112
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

sorry idk where i got 4'' from they are actually 5.5'' (tires). with the rustler trany mounted where the original tranny was with no diff.,5.5'' tires, 2200kv motor, 6s, and a 36T spur and 24T pinion it says it should be going 195 at 48,850 motor rpms... yeah that doesnt seem right. and for the keepong it under control thing. i have an idea on how to keep it on the ground i got that covered.
Old 05-14-2011, 09:58 AM
  #9  
ThunderbirdJunkie
Senior Member
My Feedback: (3)
 
ThunderbirdJunkie's Avatar
 
Join Date: Jul 2004
Location: Norwood, OH
Posts: 22,101
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

Tekin RX8 and a Tekin 2.5t motor.

DO IT.
Old 05-14-2011, 12:54 PM
  #10  
JUSTPASSEDU
My Feedback: (20)
 
Join Date: Jul 2008
Location: Island Park, NY
Posts: 235
Likes: 0
Received 0 Likes on 0 Posts
Default RE: if i were going for highest top speed..which bl system under 300

Mmm and a 2650kv motor and a 6s lipo will get you there easy. Belted tires are also recommended .

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 Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.