Go Back  R/C Tech Forums > General Forums > Electric On-Road
27t or 17.5t - which is faster? >

27t or 17.5t - which is faster?

Community
Wiki Posts
Search

27t or 17.5t - which is faster?

Thread Tools
 
Search this Thread
 
Old 12-21-2008, 08:23 AM
  #1  
Tech Elite
Thread Starter
iTrader: (117)
 
wstuart's Avatar
 
Join Date: Sep 2007
Location: San Diego
Posts: 2,083
Trader Rating: 117 (98%+)
Default 27t or 17.5t - which is faster?

I still wanna run stock at my track but I also still wanna run 13.5 (in my TC)

Ive decided to use my old brushed stuff for my stock car - that way I don't have to go out and spend $250 on a new brushless setup. Ive always felt that a good tuned brushed 27t would smoke a 17.5 - wondering what you guys think.

Does anyone still produced tuned 27t motors?

thanks guys
wstuart is offline  
Old 12-21-2008, 09:20 AM
  #2  
Tech Elite
iTrader: (23)
 
Join Date: Feb 2008
Location: Upper Milwaukee
Posts: 2,731
Trader Rating: 23 (100%+)
Default

it depends on how well the two motors are geared. If you have a great brushed motor that is cut and tuned recently that is geared perfect no problem it can beat a 17.5.
not home is offline  
Old 12-21-2008, 01:51 PM
  #3  
Tech Elite
iTrader: (49)
 
haywood's Avatar
 
Join Date: Dec 2008
Location: Minnesota
Posts: 2,877
Trader Rating: 49 (100%+)
Default

I have found that in the trans am class you need a very well tuned 27t and you have to gear the motor to just before the point of burning it up to stay with a properly geared 17.5.
haywood is offline  
Old 12-21-2008, 02:57 PM
  #4  
Tech Master
iTrader: (32)
 
VenturaDC's Avatar
 
Join Date: Oct 2007
Location: Ventura, SoCal
Posts: 1,133
Trader Rating: 32 (100%+)
Default

A well tuned and clean cut 27t with good low friction oil in the bushings is for sure faster then a 17.5 in most cases
VenturaDC is offline  
Old 12-26-2008, 10:44 AM
  #5  
Tech Rookie
 
tattooedchef's Avatar
 
Join Date: Dec 2008
Location: San Antonio Texas
Posts: 14
Cool

alot of people make 27t still i go with the stock star. but brushless is the way to go you don't have to change brushes and cut the com lot less work lol
tattooedchef is offline  
Old 12-26-2008, 10:56 AM
  #6  
Tech Master
iTrader: (23)
 
sickjamminracer's Avatar
 
Join Date: Jan 2008
Location: BEAVER FALLS,PA
Posts: 1,729
Trader Rating: 23 (100%+)
Default

dont feel bad i had this same question
sickjamminracer is offline  
Old 12-26-2008, 10:58 AM
  #7  
Tech Elite
iTrader: (25)
 
trdsupra88's Avatar
 
Join Date: Jul 2007
Location: Southwest
Posts: 2,531
Trader Rating: 25 (100%+)
Default

I am still running 27t for stock touring...BL for off road...
trdsupra88 is offline  
Old 12-26-2008, 11:07 AM
  #8  
Tech Elite
iTrader: (38)
 
Join Date: Oct 2005
Location: St. Louis
Posts: 2,667
Trader Rating: 38 (100%+)
Default

I've ran both in my TC and 27t is faster slightly. At the start of the run 27t has alot more power, but they come together later in the run. My 17.5 had to be geared to the point of meltdown to get the times I was running with my brushed. At the last carpet nats I went thru 2 17.5's in qualifying and melted one down in the B main. If I was paying for these I would have spent over $200 in motors that weekend. Oh and by the way all the cars that finished above me were running brushed. Thats why I now run the 13.5 class until they get rid of the 17.5/27T class. It just not equal in TC's.
chensleyrc1 is offline  

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



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.