R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 04-14-2010, 12:28 PM   #136
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,829
Trader Rating: 13 (100%+)
Default

Here is my Copperhead 10. The only change i made for this past weekend was that i went to an AE green center spring due to the lower traction. The car worked really well.
Attached Thumbnails
BMI Racing "Copperhead 12" discussion and support-copperhead-10-electronics.jpg  
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 04-14-2010, 12:31 PM   #137
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,829
Trader Rating: 13 (100%+)
Default

Actually, i made 1 more change. I ran the longest shock position on the battery hold down with the plate spun around 180 degrees. This is 1/8 inch shorter than when it is in standard front offset position.
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 04-14-2010, 05:35 PM   #138
Tech Master
 
LonnyJ1950's Avatar
 
Join Date: Aug 2009
Location: Tucson, AZ. USA
Posts: 1,194
Default

Thanks!
__________________
Lonny
LonnyJ1950 is offline   Reply With Quote
Old 04-14-2010, 05:37 PM   #139
Tech Fanatic
 
Join Date: Nov 2006
Location: St. Louis, MO
Posts: 904
Trader Rating: 23 (100%+)
Default

I was looking at one of the newer guys BMI this past weekend and noticed it did not have any tweak adjustment screws. Is this normal? I've never run a BMI and always thought that you should have some way to adjust the tweak of the car. He was having a difficult time getting it up to speed but I'm pretty sure it was the full size tires keeping it from driving better.
SteveL is offline   Reply With Quote
Old 04-14-2010, 05:42 PM   #140
Tech Elite
 
chris moore's Avatar
 
Join Date: Mar 2004
Location: Phx AZ
Posts: 3,766
Trader Rating: 87 (99%+)
Default

Quote:
Originally Posted by LonnyJ1950 View Post
Pictures of Jason's Copperhead 10!!

You thinking about running WGT Lonny?
__________________
Sponsered by:

CMDezigns Paint Works
https://www.facebook.com/pages/CM-Dezigns/259989190822177?ref=hl
chris moore is offline   Reply With Quote
Old 04-14-2010, 06:28 PM   #141
Tech Lord
 
20 SMOKE's Avatar
 
Join Date: Dec 2003
Location: HVR_ WEEKI WACHEE FL
Posts: 10,294
Trader Rating: 101 (100%+)
Default

Quote:
Originally Posted by SteveL View Post
I was looking at one of the newer guys BMI this past weekend and noticed it did not have any tweak adjustment screws. Is this normal? I've never run a BMI and always thought that you should have some way to adjust the tweak of the car. He was having a difficult time getting it up to speed but I'm pretty sure it was the full size tires keeping it from driving better.
jason said it doen't tweak
__________________
Jamie W
*Team Tekin*Tekno-rc*DE Racing*AKA*DDHRC*
20 SMOKE is offline   Reply With Quote
Old 04-14-2010, 06:35 PM   #142
Tech Champion
 
Join Date: Nov 2001
Location: Hawaii, USA
Posts: 7,179
Default

Quote:
Originally Posted by SteveL View Post
I was looking at one of the newer guys BMI this past weekend and noticed it did not have any tweak adjustment screws. Is this normal? I've never run a BMI and always thought that you should have some way to adjust the tweak of the car. He was having a difficult time getting it up to speed but I'm pretty sure it was the full size tires keeping it from driving better.
The last few years 1/12th drivers have been balancing their cars left to right so there is no need for a tweak adjustment. Then they just tighten the tweak screws or roll springs down until they just barely touch rather than using them for an actual tweak adjustment. Since the BMI uses a flex plate design which is held in place it doesn't need a tweak screw. Similarly the HB car which has an option to use a spacer on the front of the T-Plate instead of a pivot which would then not need a tweak screw.
InspGadgt is offline   Reply With Quote
Old 04-14-2010, 10:35 PM   #143
Tech Master
 
LonnyJ1950's Avatar
 
Join Date: Aug 2009
Location: Tucson, AZ. USA
Posts: 1,194
Default

Hey Chris, I would if I thought anyone else would. We can't even round up enough guys for 1/12Th lately. How about shooting me a pm next time you guys are coming down. I'm so desperate I bought a B4.
__________________
Lonny
LonnyJ1950 is offline   Reply With Quote
Old 04-14-2010, 11:57 PM   #144
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,829
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by SteveL View Post
I was looking at one of the newer guys BMI this past weekend and noticed it did not have any tweak adjustment screws. Is this normal? I've never run a BMI and always thought that you should have some way to adjust the tweak of the car. He was having a difficult time getting it up to speed but I'm pretty sure it was the full size tires keeping it from driving better.
That is normal. There is no need for tweak adjustment on this car as it does not utilize front and rear pivots on the flex plates. We use precision machined spacer plates under the front of flex plates and all of the flex plates are matched sets to eliminate the need for tweak screws or any tweaking for that matter. We took the difficulty out of 1/12th. There are many things that can make a car work well or work poorly, I assure you that having tweak screws would not fix the problem your friend is having. There is going to be an issue in the setup somewhere. If you like, have him give a call to the shop and i can get him taken care of.
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 04-15-2010, 12:18 AM   #145
Tech Master
 
KWT-NITRO's Avatar
R/C Tech Elite Subscriber
 
Join Date: Oct 2008
Location: Kuwait
Posts: 1,616
Trader Rating: 9 (100%+)
Default

Hey Jason,

do you have to use a mini servo for the copperhead 12?? will a normal size servo fit?? if yes, am thinking of a Savox servo, one is 5KGs and 0.048s and the other is 10KGs and 0.07s, what do you think is better ??

cheers

Ali
__________________
Team Kuwait, Team Terribles, www.rccck.org
Kuwait National Champion
FEMCA Truggy Finalist & FEMCA Buggy Semi-Finalist
Thanks to all my sponsors: Modelix/Ultimate Racing, AKA Racing, AVID Racing, Stick-it1 Racing and HES
KWT-NITRO is offline   Reply With Quote
Old 04-15-2010, 04:31 AM   #146
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,829
Trader Rating: 13 (100%+)
Default

We do use mini servos. I like the futaba 9602
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 04-15-2010, 08:00 PM   #147
H I
Tech Master
 
H I's Avatar
 
Join Date: May 2006
Location: Sydney,Australia
Posts: 1,877
Trader Rating: 18 (100%+)
Default

I知 half way though putting Copperhead 12 together. This thing is soooo easy to build. I知 very happy with it so far. I知 not sure what to do with $1000 worth spare parts from DB12RR. Is it possible to use old flex plate pivot hosing used on new kit? I assume front end and diff assembly are identical apart from color?
H I is offline   Reply With Quote
Old 04-15-2010, 08:13 PM   #148
Tech Master
 
HarryLeach's Avatar
 
Join Date: Feb 2009
Location: Hampton, VA, USA
Posts: 1,596
Send a message via AIM to HarryLeach
Default

Quote:
Originally Posted by H I View Post
I知 half way though putting Copperhead 12 together. This thing is soooo easy to build. I知 very happy with it so far. I知 not sure what to do with $1000 worth spare parts from DB12RR. Is it possible to use old flex plate pivot hosing used on new kit? I assume front end and diff assembly are identical apart from color?
I can't say for certain since I didn't have a DB12RR, but I believe the major differences between the 12RR and Copperhead are the main chassis, lower pod plate and flex links.
__________________
Privateer racing lots of stuff.
Remember kids, racing isn't fair!
HarryLeach is offline   Reply With Quote
Old 04-16-2010, 01:06 AM   #149
Tech Champion
 
Join Date: Nov 2001
Location: Hawaii, USA
Posts: 7,179
Default

That's a lot of spare parts...like 5 complete cars worth!
InspGadgt is offline   Reply With Quote
Old 04-16-2010, 01:51 AM   #150
H I
Tech Master
 
H I's Avatar
 
Join Date: May 2006
Location: Sydney,Australia
Posts: 1,877
Trader Rating: 18 (100%+)
Default

Quote:
Originally Posted by InspGadgt View Post
That's a lot of spare parts...like 5 complete cars worth!
3 1/2 spare cars on top of parts as well
You should see my friends spare. He got almost twice as much.
Us two put together and we got more than 10 BMI 12th scale cars!
We don't have hobby shop carries BMI in Australia so $500-600 parts order is normal for us. And thanks to new kits my bank account is next to zero
H I 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 05:34 PM.


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