R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 08-10-2004, 07:53 PM   #1
Tech Master
 
Join Date: May 2004
Location: New Zealand
Posts: 1,204
A curious anomaly.......

has anyone else noticed the drivetrain of their current ride spins more freely in reverse?

I ask because as I'm building my current car (CGM) it occured to me that this kit has one thing in common with every kit I have ever built.

No matter how free you can get the transmission to spin and no matter what method you use to check, from blowing on the spur gear to spinning the wheels and timing it. No matter what method I use I've always got a better result when spinning it in the reverse direction.

Just wondering.
Mabuchi540 is offline   Reply With Quote
Old 08-10-2004, 07:57 PM   #2
Tech Master
 
DOMOisCOOL's Avatar
R/C Tech Charter Subscriber
 
Join Date: May 2003
Location: Daly City, California, U.S.A.
Posts: 1,914
Send a message via ICQ to DOMOisCOOL Send a message via AIM to DOMOisCOOL Send a message via Yahoo to DOMOisCOOL
Default

Are you using the differential in the front or a one way?
DOMOisCOOL is offline   Reply With Quote
Old 08-10-2004, 07:58 PM   #3
Tech Master
 
Join Date: May 2004
Location: New Zealand
Posts: 1,204
Default

Quote:
Originally posted by DOMOisCOOL
Are you using the differential in the front or a one way?
When it's been 4wd kits it's always been a diff but the same question/anomaly has applied to 2wd as well.
Mabuchi540 is offline   Reply With Quote
Old 08-10-2004, 08:00 PM   #4
Tech Master
 
DOMOisCOOL's Avatar
R/C Tech Charter Subscriber
 
Join Date: May 2003
Location: Daly City, California, U.S.A.
Posts: 1,914
Send a message via ICQ to DOMOisCOOL Send a message via AIM to DOMOisCOOL Send a message via Yahoo to DOMOisCOOL
Default

Only thing I could think of is, with the one way, you have one less differential moving making it "smoother".
DOMOisCOOL is offline   Reply With Quote
Old 08-10-2004, 08:25 PM   #5
Tech Master
 
Super Steve's Avatar
 
Join Date: Oct 2003
Location: Toronto, Ontario, Canada
Posts: 1,177
Trader Rating: 9 (100%+)
Send a message via AIM to Super Steve
Default

Quote:
Originally posted by DOMOisCOOL
Only thing I could think of is, with the one way, you have one less differential moving making it "smoother".
no...

It's because gears wear better in one direction compared to the other (considering most cars move forward most of the time) The motor powers the driverterrain...

When you push the car forward, making the wheel spin the driveterrain, the part of the gears that are use to spin the car backward are touching. And when you spin it backwords, the normal parts of the gears that are used to propell the car forward are touching, so it feels more free...

If you understand what i said you are not dumb. if you didn't; maybe my explanation sucked (or you are dumb!) lol
Super Steve is offline   Reply With Quote
Old 08-10-2004, 08:33 PM   #6
Tech Master
 
Join Date: Apr 2004
Location: San Jose California
Posts: 1,251
Default

Makes sense
The Black Kat is offline   Reply With Quote
Old 08-10-2004, 08:54 PM   #7
Tech Master
 
onnetz's Avatar
 
Join Date: Apr 2004
Posts: 1,727
Default

makes total sense...
pushing the car reverses the forces on the drivetrain..
onnetz is offline   Reply With Quote
Old 08-11-2004, 01:34 AM   #8
Tech Elite
 
Lonestar's Avatar
 
Join Date: Oct 2001
Location: Switzerland
Posts: 2,360
Trader Rating: 13 (100%+)
Default

Race it backwards !!!


Paul
__________________
When the flag drops, the BS stops.

The train stops at the train station. The bus stops at the bus station. In my office I have a workstation.
Lonestar is offline   Reply With Quote
Old 08-11-2004, 02:00 AM   #9
Tech Regular
 
Join Date: Mar 2004
Location: England (UK)
Posts: 440
Default

What race backwards with the steering wheels at the back, no thanks
Chazz is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Curious? axel Electric On-Road 3 03-23-2005 08:39 PM
Just curious, what is the difference between .12 & .15 RTR motors? elokens Electric Off-Road 3 11-21-2004 10:05 AM
Just Curious XIII Nitro On-Road 5 03-24-2003 09:33 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 11:39 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net