R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-23-2007, 02:07 PM   #1681
Tech Fanatic
 
Join Date: Jun 2005
Posts: 900
Default

Can I get some information of centre springs and shock oils, please?

If I switch to blue (softer than gold) spring, do I drop to 30wt oil? And, if I try the red (harder than gold) spring, do I use 40wt? When would I switch centre springs, and what do they do for handling?

Oils - do you switch from 35wt oil when using a gold spring? If so, what is the effect? If I ran 30wt oil instead of 35wt, what would happen?

Hope someone who's tried it all can let me know. Thanks in advance.
SlowerOne is offline   Reply With Quote
Old 09-23-2007, 02:09 PM   #1682
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,826
Trader Rating: 13 (100%+)
Default

Will do.

It was cool today. People were lining up around the track to watch it run. At first people thought it was just a TC. Once we started laying down some laps, then the questions came.
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 09-23-2007, 02:14 PM   #1683
Tech Master
 
Join Date: Sep 2005
Location: NYC
Posts: 1,202
Trader Rating: 65 (100%+)
Send a message via AIM to joey
Default

from the sounds of it i might want a Db10R

i cant wait to run my DB12R again..
__________________
=Joe Wright=
joey is offline   Reply With Quote
Old 09-23-2007, 02:18 PM   #1684
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,826
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by SlowerOne View Post
Can I get some information of centre springs and shock oils, please?

If I switch to blue (softer than gold) spring, do I drop to 30wt oil? And, if I try the red (harder than gold) spring, do I use 40wt? When would I switch centre springs, and what do they do for handling?

Oils - do you switch from 35wt oil when using a gold spring? If so, what is the effect? If I ran 30wt oil instead of 35wt, what would happen?

Hope someone who's tried it all can let me know. Thanks in advance.
I have tested all of the 3 springs you mention. What i find is that the softer the center spring, the more the car can roll.in low bite i like to run a softer center spring. The heavier the spring,the more the front frees up. When the bite comes up,the softer spring makes the car over rotate. This adjustment works together with flex plate thickness. If the car is pushing,i usually will want to use a thicker flex plate or go to a slightly softer center spring. I usually only go back and forth between 35wt. oil and 40 wt. oil. As a rule of thumb i always start with 35. If the track is bumpy i go to 40 wt. to give a little more pack to keep the bottom of the car from bottoming out. There isnt a huge difference in feel between the 35 and 40 wt. The 40 just makes the car a little smoother. A little lazy sometimes but its a tradeoff. Bottom out or take the slightly lazy feel?
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 09-23-2007, 02:22 PM   #1685
Tech Fanatic
 
Join Date: Jun 2005
Posts: 900
Default

Thanks Adrian.
SlowerOne is offline   Reply With Quote
Old 09-23-2007, 03:54 PM   #1686
Tech Master
 
Kropy's Avatar
 
Join Date: Nov 2003
Location: In a van down by the river
Posts: 1,763
Trader Rating: 12 (100%+)
Send a message via AIM to Kropy
Default

Quote:
Originally Posted by SlowerOne View Post
Thanks Adrian.
OH Snap.....LOL
__________________
Dale "Kropy" Kropaczewski
Kolors by Kropy
Postman, Save a spot on the stand for me
Kropy is offline   Reply With Quote
Old 09-23-2007, 04:16 PM   #1687
Tech Addict
 
GreaseMonkey's Avatar
 
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 552
Trader Rating: 4 (100%+)
Default

Ran my DB12R for the first time today. It seemed I was plague with one problem after another although not with the car itself. First heat the car had a lot a steering. Then about 15 laps in it had very poor steering but still drivable. 5 laps later, my batteries died. I figured it was a bad pack so I put it aside. I pulled the car off and foundthe centre shock had blown the inside out and had no oil in it ( My IRS shock won't assemble so I borrowed an AE micro shock for the day). Next heat my batteries unsoldered. Same with the next heat (both at 20 laps in). Final qualifier and in my frustration I had charged and installed the pack that had dumped on me in the first qualifier. 20 laps later, my batteries dump. At this point I'm obviously qualfied last. No big deal. Today is mostly a testing day for wednesday night which is the main 12th night.

Anyway, the main comes around and I'm doing ok. I'm on a 43 laps pace which is what I had set for myself so I'm pretty happy and the car is driving amazing apart from being a little slow due to being undergeared. 32 laps in, my batteries dump on me.

All in all a pretty average day of racing. The car was amazing though. My fastest lap was about .4 off TQ's fastest lap and I mostly attribute that to a slow motor.
__________________
I'm not a grown man playing with toys. I'm a hobbyist.
GreaseMonkey is offline   Reply With Quote
Old 09-23-2007, 04:38 PM   #1688
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,826
Trader Rating: 13 (100%+)
Default

The best way i have found to build the shock is like this:

Fill the body to the middle of the threads.

Insert the piston and let is sink all the way to the bottom of the body as far as it can go,

put the foam,spacer,and O ring in and slowly push them in with a small allen wrench until they seat.

now you want to remove all the oil from the top area of the O ring with a Q tip or paper towel and make sure you get all the oil from the O ring.

Now with the piston still at the bottom of the body, slowly screw the cap on until it is tight. Every time the piston starts to rebound, Stop and slowly push it back in. Once the cap is just about tight is when you want the piston to start to rebound. Fully tighten and then you can pull the shock shaft out.

This is the way i always build my shock and it eliminates all of the air and eliminates most of the rebound. I want about 1/4 inch of rebound and that is it. There will be no lock up anywhere in the travel.
__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 09-23-2007, 04:47 PM   #1689
Tech Addict
 
GreaseMonkey's Avatar
 
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 552
Trader Rating: 4 (100%+)
Default

My shock was built right. It just blew that little star shaped retainer out of the end. Actually it did it twice but the second time was about 5 minutes before the second heat. I just grabbed another micro shock I had floating around but had no idea what oil was in it. I knew it was thinner than 30 weight but I didn't have enough time to change the oil. With that shock the car felt like it had less steering. For the next qualifier I rebuilt the second shock and it was good for the rest of the day.
__________________
I'm not a grown man playing with toys. I'm a hobbyist.
GreaseMonkey is offline   Reply With Quote
Old 09-23-2007, 05:27 PM   #1690
Tech Elite
 
Mr. Shookie's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2004
Location: The Wilderness
Posts: 4,713
Trader Rating: 9 (100%+)
Send a message via AIM to Mr. Shookie Send a message via MSN to Mr. Shookie
Default

Quote:
Originally Posted by protc3 View Post
I had to wake up for a race this morning. i dont function well on 3 or 4 hours sleep. Still won though
Is it still a win if Adrian is the only one racing you.........DUH!!!!!!!!!!!!!!!!!

-Shookie <><
__________________
All who love the LORD JESUS I praise with you.1 Cor 10:31
Team HOLY Rollers (Team Manager)
The Church is a Hospital for Sinners not a Museum for Saints.
RcTech Feedback <>< RC Tech Subcriber #92
Mr. Shookie is offline   Reply With Quote
Old 09-23-2007, 05:29 PM   #1691
Tech Lord
 
protc3's Avatar
 
Join Date: Jun 2003
Location: Spring Hill,Florida
Posts: 10,826
Trader Rating: 13 (100%+)
Default

__________________
Jason Breiner
BMI Racing
Team Associated
J Concepts
protc3 is offline   Reply With Quote
Old 09-23-2007, 06:09 PM   #1692
Tech Fanatic
 
ChestyV32's Avatar
 
Join Date: Jul 2006
Posts: 897
Trader Rating: 32 (100%+)
Default

One more day
__________________
SXT Tire Additive
www.SuperiorHobbies.com
ChestyV32 is offline   Reply With Quote
Old 09-23-2007, 06:20 PM   #1693
Tech Master
 
Join Date: Jan 2004
Location: Wisconsin
Posts: 1,575
Trader Rating: 17 (100%+)
Send a message via AIM to Kave
Default

When can we expect a DBSedan?
Kave is offline   Reply With Quote
Old 09-23-2007, 06:37 PM   #1694
Tech Elite
 
tallyrc's Avatar
 
Join Date: Mar 2003
Location: palm city, fl
Posts: 2,594
Trader Rating: 12 (100%+)
Default

can't wait to see the pics of the 10th scale..
__________________
WWW.STORMERHOBBIES.COM helping keep pan cars alive!

Turns out not where, but who your with that really matters... DMB
tallyrc is offline   Reply With Quote
Old 09-23-2007, 07:01 PM   #1695
Tech Addict
 
RichChang's Avatar
 
Join Date: Jan 2002
Location: Ann Arbor, MI
Posts: 587
Default

Jason --- ran the car today with a 10.5 - what a blast! I didn't get any practice because I didn't finish getting the car ready until 5 minutes before the 1st qualifier. However, the car is really really good. It is very consistent and each run I got faster after making some adjustments each round. The corner speed is really impressive and it is really easy to drive (no butt clenching when trying to drive it faster). It definitely brings the two worlds of T-bar and link cars together.

The traction at CEFX was very high and I had some traction rolling issues so that made me a bit tentative to push it very hard. However, I am pretty sure most of that is because I was running my tires too big. I am pretty sure I could have dropped at least a couple more 1/10ths if it wasn't for that.

Anyways, all I need is some more practice/track time to get the car adjusted for my driving style and then it will be time to strap in the 5.5.

btw: I ended up taking the IRS castor blocks off after the 1st qualifier and went to the stock 10 deg castor blocks.

Great car guys!

1armed1 - cool! Maybe I'll head out there. CEFX is going to be low with turn-out anyways since a lot of folks will be at the IIC.

-Rich
RichChang is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
NEW IN BOX BMI DB12R bigb11 R/C Items: For Sale/Trade 47 10-09-2008 04:36 PM
-BMI DB12R- joey R/C Items: For Sale/Trade 11 05-18-2008 09:25 PM
BMI DB12R wallstreet R/C Items: For Sale/Trade 17 02-15-2008 05:04 PM
BMI DB12R D-Bizzle R/C Items: For Sale/Trade 2 12-21-2007 03:48 PM
WTB BMI DB12R chris moore R/C Items: Wanted to Buy 8 06-29-2007 06:25 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 03:53 AM.


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