R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-24-2007, 11:32 AM   #1
Tech Elite
 
rcfoolz's Avatar
 
Join Date: Sep 2003
Posts: 3,327
Trader Rating: 22 (100%+)
Send a message via Yahoo to rcfoolz
Default Lower Center of Gravity.....How important?

I've been toying with lowering the center of gravity, what about using steel lower pivot balls instead of titanium ones? And using steel screws instead of titanium ones?
__________________
Am I going back racing?...Hmmm.. Not anytime soon... But soon enough.

Last edited by rcfoolz; 02-24-2007 at 07:51 PM.
rcfoolz is offline   Reply With Quote
Old 02-24-2007, 08:34 PM   #2
Tech Addict
 
dr_catman's Avatar
 
Join Date: Nov 2006
Location: My baby as an embryo
Posts: 605
Default

On this topic, do these different screws actually have any noticeable difference in handling in terms of weight and CG?
dr_catman is offline   Reply With Quote
Old 02-24-2007, 11:11 PM   #3
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,186
Trader Rating: 182 (100%+)
Default

Quote:
Originally Posted by dr_catman
On this topic, do these different screws actually have any noticeable difference in handling in terms of weight and CG?
i heard if you use white lexan paint it will lower the cg more than dark colors
Marcos.J is offline   Reply With Quote
Old 02-24-2007, 11:32 PM   #4
Tech Addict
 
dr_catman's Avatar
 
Join Date: Nov 2006
Location: My baby as an embryo
Posts: 605
Default

Quote:
Originally Posted by Marcos.J
i heard if you use white lexan paint it will lower the cg more than dark colors
dr_catman is offline   Reply With Quote
Old 02-25-2007, 12:03 AM   #5
Tech Elite
 
rmdhawaii's Avatar
 
Join Date: Feb 2006
Posts: 3,804
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Marcos.J
i heard if you use white lexan paint it will lower the cg more than dark colors
That's a good one.

Seriously though...

Most people consider shifting weight from the top of the chassis to the bottom of a chassis a good thing. If you car is underweight, then using steel pivot balls and steel screws on the bottom of the chassis makes sense. If your car is already at weight, I certainly wouldn't recommend adding more weight just to lower the CG.

Can anyone tell the difference? I think the cliché, "every little bit counts" factors into the equation, weather you notice a difference or not. A little bit here, a little bit there and before you know it, you've shaved half a second off your lap time.
__________________
Nitro Knowledge Base: http://nitrokb.netne.net
My YouTube Channel: http://www.youtube.com/nitrokb -> Lots of on-road nitro & eletric action + some off-road as well
My Flickr Photostream: http://www.flickr.com/photos/nitrokb/
Kyosho V-ONE RRR WC (x2) \ XRAY T2'007 \ Also owned: XRAY NT1 & Mugen MTX-4
rmdhawaii is offline   Reply With Quote
Old 02-25-2007, 02:14 AM   #6
Tech Addict
 
BIGTACO's Avatar
 
Join Date: May 2006
Posts: 520
Trader Rating: 10 (100%+)
Default

Every little bit does count. Every change you make to these cars has an effect due to the laws of physics. Now whether extremely minor changes like different weight screws will have an effect on overall performance of the car, probably not enough to warrant the time or money. The best investment you can make is not trying to improve the already incredible engineering of our modern RCs, but rather practicing at the track. Learn to drive what you have, better. Take better lines. Learn to get the most out of your engine. Work on passing, setting up the car, ect ect...

my 2.5 cents
__________________
RC's: MUGEN MBX5-T Prospec w/Ninja .28!
MUGEN MRX4X w/ Novarossi 321P Tuned
Trex 450 V2
RC Planes
Real Car: 2003 Corvette C5 Z06 Millenium yellow
BIGTACO is offline   Reply With Quote
Old 02-25-2007, 03:19 AM   #7
Tech Elite
 
rcfoolz's Avatar
 
Join Date: Sep 2003
Posts: 3,327
Trader Rating: 22 (100%+)
Send a message via Yahoo to rcfoolz
Default

deleted
__________________
Am I going back racing?...Hmmm.. Not anytime soon... But soon enough.
rcfoolz is offline   Reply With Quote
Old 02-25-2007, 04:18 AM   #8
Tech Addict
 
dr_catman's Avatar
 
Join Date: Nov 2006
Location: My baby as an embryo
Posts: 605
Default

Quote:
Originally Posted by rcfoolz
deleted
whats deleted
dr_catman is offline   Reply With Quote
Old 02-25-2007, 05:34 AM   #9
Moderator
 
Artificial-I's Avatar
 
Join Date: Jan 2005
Location: Rurouni Kenshin
Posts: 3,459
Trader Rating: 17 (100%+)
Send a message via AIM to Artificial-I
Default

Youll want to leave the Ti pivot balls and this reduces the unsprung weight on the suspension. AKA the suspension can now do its work more efficiently without as much weight acting upon it.

The steel screws at bottom is an idea though. Only way to find out is probably do it and see if you can tell the difference. Another one is placing weights right on the chassis or getting a thicker or heavier chassis.
Artificial-I is offline   Reply With Quote
Old 02-25-2007, 06:38 AM   #10
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,963
Trader Rating: 83 (100%+)
Default

Quote:
Originally Posted by BIGTACO
Every little bit does count. Every change you make to these cars has an effect due to the laws of physics. Now whether extremely minor changes like different weight screws will have an effect on overall performance of the car, probably not enough to warrant the time or money. The best investment you can make is not trying to improve the already incredible engineering of our modern RCs, but rather practicing at the track. Learn to drive what you have, better. Take better lines. Learn to get the most out of your engine. Work on passing, setting up the car, ect ect...

my 2.5 cents
That hit the nail right on the head. If you want something to do; learn how your roll center has an effect on the center of gravity
__________________
Elliott Hart
Serpent America
Desoto Racing Team
Chicky fan club member #9
One Eighth Racers of Toledo
lil-bump is offline   Reply With Quote
Old 02-25-2007, 03:00 PM   #11
Tech Elite
 
rcfoolz's Avatar
 
Join Date: Sep 2003
Posts: 3,327
Trader Rating: 22 (100%+)
Send a message via Yahoo to rcfoolz
Default

Quote:
Originally Posted by dr_catman
whats deleted
I read the Hudy setup guide and that let me to thinking about adjustments that my car didn't have. So, that let to a LOT of mods to my car that change or help center of gravity/roll center.. One of those came from a Mugen team driver, but the rest are of my thoughts. It isn't screws or stuff like that, but I'm testing this coming weekend at Kissimmee all the changes to the car. I have several more things that I would like to change, but I'm not sure I should be making all the changes, or any changes at all as far as that goes.

I don't want to go into detail about the mods here till I know what does and doesn't work. My goal is to be able to be able to carry more speed into the corners and give the car more cornering speed all the way through, like my pan car does.
__________________
Am I going back racing?...Hmmm.. Not anytime soon... But soon enough.
rcfoolz is offline   Reply With Quote
Old 02-25-2007, 03:31 PM   #12
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,186
Trader Rating: 182 (100%+)
Default

Quote:
Originally Posted by rcfoolz
I read the Hudy setup guide and that let me to thinking about adjustments that my car didn't have. So, that let to a LOT of mods to my car that change or help center of gravity/roll center.. One of those came from a Mugen team driver, but the rest are of my thoughts. It isn't screws or stuff like that, but I'm testing this coming weekend at Kissimmee all the changes to the car. I have several more things that I would like to change, but I'm not sure I should be making all the changes, or any changes at all as far as that goes.

I don't want to go into detail about the mods here till I know what does and doesn't work. My goal is to be able to be able to carry more speed into the corners and give the car more cornering speed all the way through, like my pan car does.
its all in the set up James
Marcos.J is offline   Reply With Quote
Old 02-25-2007, 03:40 PM   #13
Tech Elite
 
rcfoolz's Avatar
 
Join Date: Sep 2003
Posts: 3,327
Trader Rating: 22 (100%+)
Send a message via Yahoo to rcfoolz
Default

yes, setup, but is making options that I didn't have before, for doing setups to possibly to make the car better?
__________________
Am I going back racing?...Hmmm.. Not anytime soon... But soon enough.

Last edited by rcfoolz; 02-25-2007 at 06:46 PM.
rcfoolz is offline   Reply With Quote
Old 02-25-2007, 03:50 PM   #14
Super Moderator
 
Marcos.J's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2003
Location: Semper Fi
Posts: 27,186
Trader Rating: 182 (100%+)
Default

Quote:
Originally Posted by rcfoolz
yes, setup, but is it possible to make the car better?
you can always get one of these for your motor
http://www.rctech.net/forum/attachme...chmentid=64467
Marcos.J is offline   Reply With Quote
Old 02-25-2007, 05:34 PM   #15
Tech Elite
 
rcfoolz's Avatar
 
Join Date: Sep 2003
Posts: 3,327
Trader Rating: 22 (100%+)
Send a message via Yahoo to rcfoolz
Default

No ALIEN heads!!!!!!
__________________
Am I going back racing?...Hmmm.. Not anytime soon... But soon enough.
rcfoolz is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
How do you find the car's center of gravity in the Z axis? haulin79 Electric Off-Road 11 08-08-2008 05:15 PM
Which is more important? Upper link length, or roll center crazyjr Electric Off-Road 6 09-21-2007 02:59 PM
:IMPORTANT: OUTLAW MINI RACING!! :IMPORTANT: Big Reg Australian Racing 8 09-28-2006 08:07 AM
lower turn lower tourqe? kh15 Electric On-Road 8 09-11-2004 08:21 PM
Gravity feed Peter Busch Painting, Designs, Graphics and Photography 0 10-12-2003 10:24 AM



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 06:36 PM.


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