R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 01-16-2008, 08:39 PM   #136
Tech Elite
 
Join Date: Feb 2004
Location: Chandler, Arizona
Posts: 3,273
Send a message via AIM to Dawn Sanchez
Default

Quote:
Originally Posted by Taylorm View Post
................that would be B.S. and A.S. ................
LOL!
Dawn Sanchez is offline   Reply With Quote
Old 01-16-2008, 10:09 PM   #137
Tech Champion
 
STLNLST's Avatar
 
Join Date: Sep 2001
Location: Sacramento
Posts: 9,000
Trader Rating: 21 (100%+)
Default

why can't we tape weight to the batteries? I will read through the 5 pages to see if this has been answered already so please forgive me if it's been answered previously.
STLNLST is offline   Reply With Quote
Old 01-16-2008, 10:27 PM   #138
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,143
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by STLNLST View Post
why can't we tape weight to the batteries? I will read through the 5 pages to see if this has been answered already so please forgive me if it's been answered previously.
Dawn mentioned in another thread that it could provide a center of gravity advantage over NiMH. If that's the case, a Type-R w/steel LiPo tray kind of nullifies the reasoning behind it. It doesn't get any lower than that.
syndr0me is offline   Reply With Quote
Old 01-16-2008, 10:34 PM   #139
Tech Champion
 
STLNLST's Avatar
 
Join Date: Sep 2001
Location: Sacramento
Posts: 9,000
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by syndr0me View Post
Dawn mentioned in another thread that it could provide a center of gravity advantage over NiMH. If that's the case, a Type-R w/steel LiPo tray kind of nullifies the reasoning behind it. It doesn't get any lower than that.
Thanks for the clarification. I guess I'll find out where to put the weight on the chassis rather than the battery itself. Even though most have put the weight on top of the battery which slightly raises the center of gravity.
STLNLST is offline   Reply With Quote
Old 01-16-2008, 10:37 PM   #140
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,143
Trader Rating: 32 (100%+)
Default

Hopefully that rule can be revisited if CoG is the only concern. LiPo guys have to add a LOT of weight, and putting it somewhere other than the battery might not work on some chassis.

I'm guessing that's a rule that will probably get bent quite a bit at the club level if it remains.
syndr0me is offline   Reply With Quote
Old 01-16-2008, 10:55 PM   #141
Tech Champion
 
JayBee's Avatar
 
Join Date: Mar 2004
Location: 12TH-MAN COUNTRY
Posts: 6,813
Trader Rating: 31 (100%+)
Default

Quote:
Originally Posted by syndr0me View Post
Hopefully that rule can be revisited if CoG is the only concern. LiPo guys have to add a LOT of weight, and putting it somewhere other than the battery might not work on some chassis.

I'm guessing that's a rule that will probably get bent quite a bit at the club level if it remains.
I sure hope so...'cause simply, that rule isn't right. There are some chassis out now that have the CoG advantage outta the box....is ROAR prepared to ban certain chassis?
__________________
R C 3 G R A F I X _ F U S I O N . G R A P H I X _ S E A T T L E - R/C - R A C E R S _ E M E R A L D C I T Y R C . C O M

A E - 12R5.2 _ S M - REV8 PRO
JayBee is offline   Reply With Quote
Old 01-17-2008, 02:07 AM   #142
Tech Fanatic
 
Frank McKinney's Avatar
 
Join Date: Aug 2001
Location: A Yank in England
Posts: 755
Default

Quote:
Originally Posted by muahdib4 View Post
Exactly. Small inconvenience with a great payoff. I'll take that $10-$30 liposack over having to spend $200+ a year on NiMh ANYDAY.
+5

LiPo fans (who almost all say LiPo's are totally safe when used with a smidgin of intelligence) should be doing somersaults (sp?) with this and not moaning they need to monitor the charging battery. If you think it's safe and you want to race at a ROAR-sanctioned race or a ROAR-affiliated club, FFS spend $10 for a freakin' sack. If you don't think it's safe, use the NiMH M-80 packs.

(aside: I'd love to see a matcher try to market a 4600 pack called the M-80! )

I still would like to know if anything will be done to disallow the super-high capacity NiMH cells like some EFRA countries have tried. Or is this already done?
__________________
Minimal signature to save screen space! Big sigs suX0r
Frank McKinney is offline   Reply With Quote
Old 01-17-2008, 02:15 AM   #143
Tech Elite
 
STEALTH's Avatar
 
Join Date: May 2003
Location: Manila & California
Posts: 3,019
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by Rick Hohwart View Post
I have already asked ROAR to clarify this. My assumption is that the this is OK. The battery is made up of 4 cells but you are configuring them in a way that makes them 2-cell in terms of the legal voltage of 7.4V.
That is good to hear Rick... hopefully REEDY will be releasing a hard-cased saddle pack sooner rather than later then!


Now we just need IFMAR and the other Blocks making it up approve LiPo as well!
STEALTH is offline   Reply With Quote
Old 01-17-2008, 04:18 AM   #144
Tech Fanatic
 
Join Date: Jun 2007
Posts: 947
Trader Rating: 1 (100%+)
Default

I was ready for this day two years ago when I decided to go LiPo only.
Sabin is offline   Reply With Quote
Old 01-17-2008, 03:58 PM   #145
Tech Addict
 
Island Losi's Avatar
 
Join Date: Apr 2007
Location: Barbados
Posts: 473
Trader Rating: 3 (100%+)
Default

now we've seen that 5cell its the better choice for mod. would it make sence to make a 6V lipo for mod racing? if not with 7.4V lipos wouldn't it kill off mod classes as it would be too powerful? or just use higher turn motors for mod racing?
__________________
Yokomo|SpeedPassion|McgooCreative|TeamOrion|FusionPower|Futaba|Spektrum|RP|Trinity|Protoform
Island Losi is offline   Reply With Quote
Old 01-17-2008, 04:21 PM   #146
Tech Elite
 
yyhayyim's Avatar
 
Join Date: May 2006
Location: Weston, FL
Posts: 3,424
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by syndr0me View Post
Dawn mentioned in another thread that it could provide a center of gravity advantage over NiMH. If that's the case, a Type-R w/steel LiPo tray kind of nullifies the reasoning behind it. It doesn't get any lower than that.
I agree...the Type R will have certain advantages over other cars...its much easier to balance, and adding weights is as low and easy ans it gets...

Arent you running a TRF416? What happened to the Type R you were running?
yyhayyim is offline   Reply With Quote
Old 01-17-2008, 04:23 PM   #147
Tech Elite
 
yyhayyim's Avatar
 
Join Date: May 2006
Location: Weston, FL
Posts: 3,424
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by STEALTH View Post
That is good to hear Rick... hopefully REEDY will be releasing a hard-cased saddle pack sooner rather than later then!


Now we just need IFMAR and the other Blocks making it up approve LiPo as well!
MaxAmps has stepped up big time...they're already submitting their packs, which will come with hard casing...and they have the saddle packs already, in 4000mah and 6000mah...they're tight with ROAR sposoring their events and are making big moves to become one the big players in the santioned RC racing...
yyhayyim is offline   Reply With Quote
Old 01-17-2008, 04:26 PM   #148
Tech Elite
 
yyhayyim's Avatar
 
Join Date: May 2006
Location: Weston, FL
Posts: 3,424
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by Rick Hohwart View Post
I have already asked ROAR to clarify this. My assumption is that the this is OK. The battery is made up of 4 cells but you are configuring them in a way that makes them 2-cell in terms of the legal voltage of 7.4V.
Dawn...would you please let us know when a clarification will be released? Many of us run Orion and Peak Lipo and would like to know their configuration is legal, and rules are not clear in this regard...thx
yyhayyim is offline   Reply With Quote
Old 01-17-2008, 04:40 PM   #149
PDM
Tech Adept
 
Join Date: Sep 2007
Posts: 184
Default

Quote:
Originally Posted by Island Losi View Post
now we've seen that 5cell its the better choice for mod...
Why do you say that?

Because less weight? You can be lighter with lipo.
Because less power? If a driver realize he drives faster with a less powerful motor he can change to a less powerful motor.

So...?

And more, for what I seen here fast drivers can not make 5 minutes with 5cells.

Why make it a stupid event if there is technology to make it nice?

I believe people were never told for the real reasons why the change for 5 cells but I have a guess that was because a big european maker of ESC, they were not holding the power.
PDM is offline   Reply With Quote
Old 01-17-2008, 04:44 PM   #150
Tech Elite
 
Rick Hohwart's Avatar
 
Join Date: Sep 2003
Posts: 3,935
Default

Quote:
Originally Posted by yyhayyim View Post
Dawn...would you please let us know when a clarification will be released? Many of us run Orion and Peak Lipo and would like to know their configuration is legal, and rules are not clear in this regard...thx
This configuration is legal.
Rick Hohwart is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
ROAR approves LIPO and Brushless al dente Colorado Racing 12 01-23-2008 11:42 PM
Roar Approves Lipo *Chrominator* Electric Off-Road 28 01-23-2008 10:35 PM
ROAR Approves Brushless Motors chicagokenji Wisconsin & Illinois Racing 5 07-17-2007 11:40 AM
ROAR approves Batteries.. Mason Electric On-Road 33 12-18-2005 08:29 PM
ROAR Approves batteries Mason Florida Racing 0 12-16-2005 01:49 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 04:07 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