R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-02-2011, 11:59 AM   #1
Tech Champion
 
YR4Dude's Avatar
 
Join Date: Sep 2004
Location: So Cal
Posts: 5,625
Trader Rating: 44 (100%+)
Default Are lipo weights still necessary for 5000 + lipo packs?

I don't have a scale in front of me so I thought I'd ask if someone knows this.

Of course the earlier lower capacity lipos seemed light which deemed the necessity of lipo weights but now the new 5000+ lipos seem kinda weighty. Are lipo weights still necessary with the higher capacity packs to compensate for the weight imbalance with the electronics like on an Xray or any typical chassis of that kind?
YR4Dude is offline   Reply With Quote
Old 08-02-2011, 12:12 PM   #2
Tech Elite
 
Join Date: Dec 2009
Location: Sarasota FL
Posts: 2,059
Trader Rating: 48 (93%+)
Default

Quote:
Originally Posted by YR4Dude View Post
I don't have a scale in front of me so I thought I'd ask if someone knows this.

Of course the earlier lower capacity lipos seemed light which deemed the necessity of lipo weights but now the new 5000+ lipos seem kinda weighty. Are lipo weights still necessary with the higher capacity packs to compensate for the weight imbalance with the electronics like on an Xray or any typical chassis of that kind?
YES
tcb22185 is offline   Reply With Quote
Old 08-02-2011, 12:56 PM   #3
Tech Champion
 
MikeR's Avatar
 
Join Date: Aug 2001
Location: Irvine, CA
Posts: 5,044
Trader Rating: 15 (100%+)
Default

It depends on the car. Some older wider cars like the TC5 and Cyclone- yes. Newer TCX or XR3- not so much. It has more to do with how far the motor sticks out and how far you need to position the battery out to balance it before adding weight.
__________________
www.exotekracing.com ☆ASSOCIATED☆DURANGO☆HPI☆HB RACING☆KYOSHO☆LOSI/TLR☆SERPENT☆TAMIYA☆TEKNO☆XRAY☆

A picture with your post, when trouble shooting, will probably get more rctech help than without...
MikeR is offline   Reply With Quote
Old 08-02-2011, 01:42 PM   #4
Tech Elite
 
corallyman's Avatar
 
Join Date: Feb 2002
Location: Edmonds, Wash
Posts: 4,564
Trader Rating: 99 (100%+)
Default

I *think* the weight limit has also changed lower, correct? I am not sure what my car weighs but I know my Serpent is balanced. I did not need any balancing weights either to do it.

Steve
__________________
Team ORCA / ORCA USA / Pro Spec
Serpent America / Team Serpent S411 ERYX / On Point Racing OP12C, S120 / Xceed Products
Hangar 30 / Seattle RC Racers
Fasttrax Racing Series / NORA On Road Series
corallyman is offline   Reply With Quote
Old 08-02-2011, 01:56 PM   #5
Tech Addict
 
Join Date: Nov 2009
Location: Denmark
Posts: 562
Default

My 417 is actually slightly heavier on the battery-side (without weights), with my LRP 6200mah 65C batteries. So for the newer cars: No.
__________________
Niklas Hansen
Team TCHobby / Team Upgrade-RC
Tamiya TRF417 / Speed Passion GT2.0 / Speed Passion V3 motors.
Nilks is offline   Reply With Quote
Old 08-02-2011, 02:26 PM   #6
Tech Addict
 
StarrRacing's Avatar
 
Join Date: Jan 2010
Location: Youngstown, OH
Posts: 678
Trader Rating: 8 (100%+)
Default

If you need weights or not depends on TWO THINGS... And Two Things Only.....

#1 - Are you racing in a class (i.e. VTA) that has a minimum weight requirement.

AND

#2 - Is your car "balanced"??

You may need weight to meet the "minimum weight" for the class, (I run a XRAY T2 '009... and I have to add A Lot Of Weight to meet the VTA Minimum).

You may need to add weight to balance your chassis. More weight on one side "verses" the other can cause handling problems.
__________________
Jeff Starr
U.S. Coast Guard (Retired)
Traxxas 4x4 (x2), Associated SC10,
XRay T3 '009 (VTA), XRay T3 '10 (USGT), Tamiya M05 (Mini),
Tekin, Spektrum.
StarrRacing is offline   Reply With Quote
Old 08-02-2011, 03:00 PM   #7
Tech Master
 
locked's Avatar
 
Join Date: Mar 2010
Location: Toronto
Posts: 1,758
Trader Rating: 1 (100%+)
Default

Both of my cars (TOP Photon) are balanced at around 1370g with a 5000mAh battery hanging just a bit off the chassis. So for both I have to add weight to make legal minimum weight. Only 10g on my car set up for super stock touring. "VTA" here has a 1450g limit, so I have to add quite a bit to set up one of my cars for that class, but it's no where close to the ridiculous 1550g limit for USVTA. I have no idea where I could possibly put that much weight in my car if I wanted to race USVTA. I think I'd need to replace the bottom chassis with one made of depleted uranium.
__________________
Dave Locke
Team PerformanceHobbies.ca | ORCA RC | Bodies by Brandon | Team Meeting
XRAY T4'15 x2 | XRAY XB4 | XRAY XB8E | XRAY XB8
locked is offline   Reply With Quote
Reply



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 06:03 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net