Electric Pylon Racing Discuss all aspects of electric pylon racing here.

What RPM???

Reply
Old 06-13-2013, 01:30 AM
  #1
jaka
Thread Starter
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,683
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default What RPM???

Hi!
My E-Flite motor turns around 13000rpm (8x8E thick blade)with a newly (charged once)Turnigy 14,8V, 2650mAh battery and Turnigy Plush 60A speed controll.
What do you think? Have friends that have the same motor and theirs turn 14000-15000rpm.
The strange thing is that the speed controller has three diffrent timings Low, medium and high and there is no change in rpm between them.
jaka is offline  
Reply With Quote
Old 06-13-2013, 07:40 AM
  #2
kane
 
Join Date: Jun 2002
Location: Arlington Heights, IL
Posts: 406
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Jaka,

There are two versions of the Eflite power 25 motor. One is 870KV and the EF-1 racing motor is 1250KV. Please make sure you have the 1250 KV motor. They look identical, except an EF-1 label on the 1250.

You should be seeing 14.5K+ at a minimum on a 8x8E.

DK
kane is offline  
Reply With Quote
Old 06-13-2013, 07:43 AM
  #3
jaka
Thread Starter
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,683
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Hi!
I have the approved EF-1pylon motor!
jaka is offline  
Reply With Quote
Old 06-13-2013, 07:46 AM
  #4
kane
 
Join Date: Jun 2002
Location: Arlington Heights, IL
Posts: 406
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Well, that didn't help. I would try a different speed control. Perhaps try one that your friend has and see if the RPM comes back.

DK
kane is offline  
Reply With Quote
Old 06-14-2013, 05:42 AM
  #5
jaka
Thread Starter
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,683
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Hi!
We have the same Turnigy 60A Plush speed controll. Still diffrent RPM.
jaka is offline  
Reply With Quote
Old 06-17-2013, 05:08 AM
  #6
ALbert.S
 
Join Date: Jul 2002
Location: Roseville, MN
Posts: 263
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

We had our first EF1 race sat 10 flyers Everybody checking RPM's and comparing reading Everybody was in the 14,000 to 14500 range Probably different battery and motor config Last year we had a guy complaining about his low RPM readings on his Q500 motor He was at least 1000 under everyone Guess what was wrong ? His expensive custom made TACH was BAD
ALbert.S is offline  
Reply With Quote
Old 06-20-2013, 11:20 AM
  #7
jaka
Thread Starter
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,683
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Hi!
When I charged the Turnigy 2650mAh battery a second time the rpm was up to 14000rpm.
jaka is offline  
Reply With Quote
Old 06-26-2013, 07:19 AM
  #8
jstaff
 
Join Date: Mar 2007
Location: Plano, TX
Posts: 147
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: What RPM???

Most Li Po batt. said you should cycle them several time to start getting best performance.

JS
jstaff is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 02:20 AM.