Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Tekin 1550kv vs 1350kv (Truggy) >

Tekin 1550kv vs 1350kv (Truggy)

Tekin 1550kv vs 1350kv (Truggy)

Reply

Old 07-02-2011, 03:19 AM
  #31  
Suspended
iTrader: (13)
 
Join Date: May 2010
Posts: 584
Trader Rating: 13 (100%+)
Default

Worth a try....

Or you can gear it higher (Larger pinion)....

I will find out today... going to try to run my Truggy until it stops.

Originally Posted by hammer down View Post
If one were to use a tekin motor and esc. A 1300kv motor and 5000 6s batts.
Would you be able to add some timing into the esc to get the wheel speed for air corrections and a little more speed and not use that much more power?
Since timing doesnt kick in untill your moving already I wouldnt think the amp draw would be much more.
bbecker is offline  
Reply With Quote
Old 07-02-2011, 05:49 PM
  #32  
Suspended
iTrader: (13)
 
Join Date: May 2010
Posts: 584
Trader Rating: 13 (100%+)
Default

Originally Posted by T. Herwig View Post
In 2 weeks I will be attempting a 30 minute main. Last time at LCRC I used 2200mah in 15 minutes. I have a 5000mah pack so it should be possible. We will find out!
I made a 25 minute Main !!!!!!!!!!!!!!!!!!!!!!

Had to win the B main to get to the AMAIN...

Didn't drive too well... had a broken Shock and pillow balls coming out. Also had a battery come unconnected and that took a marshall about 1.5 minutes to fix...Nevertheless... AWESOME..

THANK YOU T.Herwig.

Going to G's tomorrow.. u going to be there?
bbecker is offline  
Reply With Quote
Old 07-02-2011, 10:35 PM
  #33  
Tech Addict
 
Join Date: Aug 2009
Location: Houston, Texas
Posts: 527
Default

Well if you guys have to make 25-30min without battery pack changes or required stop and gos. Consider using two 3000mah packs that you can tape together and run in parallel to get 6000mah. That way you don't have to get a special pack for the long mains and can use the 3000mah packs for 5-7min quals. Your cost is a $5 parallel plug. I used to do that with two 3700mah packs on my truggy that had to make 25 minute races. 7400mah made 25min on a truggy fine. Never tried that much mah on buggy cuz it would never fit under the body so thats why I recommended a smaller mah to stack.
jasonwipf is offline  
Reply With Quote
Old 07-02-2011, 10:52 PM
  #34  
Tech Elite
Thread Starter
iTrader: (25)
 
T. Herwig's Avatar
 
Join Date: May 2009
Location: Somerset, PA
Posts: 2,373
Trader Rating: 25 (100%+)
Default

Originally Posted by bbecker View Post
I made a 25 minute Main !!!!!!!!!!!!!!!!!!!!!!

Had to win the B main to get to the AMAIN...

Didn't drive too well... had a broken Shock and pillow balls coming out. Also had a battery come unconnected and that took a marshall about 1.5 minutes to fix...Nevertheless... AWESOME..

THANK YOU T.Herwig.

Going to G's tomorrow.. u going to be there?
Awesome!

Unforunately, no I won't be. I have some family things to tend to but next weekend. (July 9th) I will be at LCRC for the Cash race. Should be a huge turnout. Can't wait.
T. Herwig is offline  
Reply With Quote
Old 07-04-2011, 09:06 AM
  #35  
Suspended
iTrader: (13)
 
Join Date: May 2010
Posts: 584
Trader Rating: 13 (100%+)
Default

Finished an 16 min main with no issues today...

See you at LCRC this coming saturday. Do you know if they will let you run with the Nitro truggies for a cash race?

Originally Posted by T. Herwig View Post
Awesome!

Unforunately, no I won't be. I have some family things to tend to but next weekend. (July 9th) I will be at LCRC for the Cash race. Should be a huge turnout. Can't wait.
bbecker is offline  
Reply With Quote
Old 07-17-2011, 11:00 AM
  #36  
Tech Elite
iTrader: (136)
 
timannnn6's Avatar
 
Join Date: Jul 2010
Posts: 2,211
Trader Rating: 136 (100%+)
Default

Keeping this thread alive. I am building my mbx6t truggy and was wondering thoughts about wheel speed with the 1350kv motor on 6s. Some say there is not enough to make corrections mid-air with that motor and to get the 1550kv. I just want to make the right choice. I am running my mbx6 with the 2050 on 4s. Rpm's on that motor are around 30k same as the 1350 would be on 6s and I find plenty of wheel speed to make mid-air corrections.
timannnn6 is offline  
Reply With Quote
Old 07-17-2011, 11:22 AM
  #37  
Team Tekin
iTrader: (6)
 
Randy_Pike's Avatar
 
Join Date: Nov 2007
Location: Norcal
Posts: 9,912
Trader Rating: 6 (100%+)
Default

Originally Posted by hammer down View Post
If one were to use a tekin motor and esc. A 1300kv motor and 5000 6s batts.
Would you be able to add some timing into the esc to get the wheel speed for air corrections and a little more speed and not use that much more power?
Since timing doesnt kick in untill your moving already I wouldnt think the amp draw would be much more.
You could but you really shouldn't need timing to get wheel speed. This can all be done with the proper gearing.
Randy_Pike is offline  
Reply With Quote
Old 08-15-2011, 06:57 AM
  #38  
Tech Addict
iTrader: (7)
 
Nogas's Avatar
 
Join Date: Dec 2009
Location: Brisbane, Australia
Posts: 742
Trader Rating: 7 (100%+)
Default

Just looking for an update from the guys running 1350's. I'm pondering a 6S / 1350 set up for my truggy for 20 minute mains on a large open track.

I'm currently running 4S 2000kv geared fairly conservatively (38mph) and using around 4500 - 4600 in a 10 min qualifier. I pushed my 5000 pack to LVC on the weekend and just made 13 minutes, so even a 15 min main needs a pack change.
Nogas is offline  
Reply With Quote
Old 08-19-2011, 04:50 AM
  #39  
Tech Addict
iTrader: (7)
 
Nogas's Avatar
 
Join Date: Dec 2009
Location: Brisbane, Australia
Posts: 742
Trader Rating: 7 (100%+)
Default

Well, i took the plunge and ordered a 1350 t8. Will be pushing it to make 20 minutes with my 5000 6S packs but hoping to pull it off.
Nogas is offline  
Reply With Quote
Old 08-19-2011, 05:34 AM
  #40  
Tech Master
iTrader: (21)
 
gtsakiris's Avatar
 
Join Date: Sep 2009
Location: The Demolished Shore, NJ
Posts: 1,078
Trader Rating: 21 (100%+)
Default

Originally Posted by Randy_Pike View Post
You could but you really shouldn't need timing to get wheel speed. This can all be done with the proper gearing.

Randy wouldnt you say that there is some torque difference/performance differences between the 1350 and 1550 motors. You can achieve the same rpm by adjusting voltage, however the torque provided will be different due to the different winds of the can. From my experience on the same cells, the 1550 is the better motor choice and the differnce in mah used is negligable. The 1550 is the better race motor by far, more competitive and responsive. Sure you can make a 25 min main on 6000mah, but the likelyhood of being in the top three is slim from the disadvantage of the weight.
gtsakiris is offline  
Reply With Quote
Old 08-19-2011, 06:09 AM
  #41  
Tech Addict
iTrader: (7)
 
Nogas's Avatar
 
Join Date: Dec 2009
Location: Brisbane, Australia
Posts: 742
Trader Rating: 7 (100%+)
Default

hey gtsakiris, have you ever run your truggy on 4S? if so how does the mah used compare. I'm running 2000kv on 4S 5000's at the moment and putting back around 4500 - 4700 after a 10 min qualifier. I ran to about 13 minutes last meet (LVC hadn't cut in) so i'm trying to work out what size 6S packs i might need for 10 min quals and 20 min finals.

I've got 5000's that i'm going to try but any feedback based on my run times would be good.

Thanks for any help.
Nogas is offline  
Reply With Quote
Old 09-12-2011, 06:33 PM
  #42  
Tech Addict
iTrader: (7)
 
Nogas's Avatar
 
Join Date: Dec 2009
Location: Brisbane, Australia
Posts: 742
Trader Rating: 7 (100%+)
Default

I ran my new 1350 for the first time this past weekend and was very impressed.

I only fitted it for the 15 minute final and ran it with 5000 40C 6S packs so the car needed some serious spring pre load adjustments to handle the extra weight but it went surprisingly well. I had very little on power steering (need to figure out how to fix that) and was quite noticeably top heavy but once i got used to the weight and figured out a way to drive with it i was turning consistent and quick lap times.

I was expecting it to be less responsive in the air, as suggested a few times on this forum, so was very surprised at how controllable it was in the air. I have run a 2200 CC motor and a 2000 HW motor and found the 1350 was as tweakable as either of them. So for those who are concerned about wheel torque, dont be.

Run time wise, i had a bit of a stuff up with one of my batteries ( I was running a 4S and a 2S in series, i forgot to top up the 2S from storage voltage) so i dumped at 12 minutes. I topped up the 4S and it took 2774mah so by my calculations i needed 4623 mah to make 20 minutes (which would be pushing the 5000's to their safe limit) but considering i was pushing hard and haven't fitted mech brakes yet i think i could quite comfortably make 20 minutes with a few tweaks.

I am now pondering whether to get 2 x 2650 20C's (is 20C enough on 6S???) or 2 x 3000 20C's for 10 minute qualifiers???
Nogas is offline  
Reply With Quote

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service