Go Back  R/C Tech Forums > General Forums > Electric On-Road
Team Titan ARC R10 190mm EP Touring Car > Team Titan ARC R10 190mm EP Touring Car
Like Tree5Likes

Team Titan ARC R10 190mm EP Touring Car

Reply

Old 02-10-2014, 04:58 PM
  #886  
Tech Elite
iTrader: (29)
 
nikos2002's Avatar
 
Join Date: Sep 2002
Location: any where I can race!
Posts: 4,736
Trader Rating: 29 (100%+)
Default

ARC was still looking at the thread and asked me to post this in answer to Govert's question:

"Basically if you use shorter bell crank and less shim (more backward) , you will have more ackerman angle.
use longer bell crank and more shim (more forward) , you will have less ackerman angle."
nikos2002 is offline  
Reply With Quote
Old 02-10-2014, 04:59 PM
  #887  
Tech Elite
iTrader: (29)
 
nikos2002's Avatar
 
Join Date: Sep 2002
Location: any where I can race!
Posts: 4,736
Trader Rating: 29 (100%+)
Default

Originally Posted by skypilot View Post
just installed the floating motor mount, now my pinion does fit, the motor doesn't move far enough forward, and even it did, the pinion still hits the inside motor mount support.

I know a lot of people are using them so I'm assuming I did something wrong..

pics of your install please
What gearing are you trying to run (spur/pinion)?
nikos2002 is offline  
Reply With Quote
Old 02-10-2014, 05:05 PM
  #888  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,525
Trader Rating: 14 (100%+)
Default

figured it out, took off the new upright support and went back to the stock one.
skypilot is offline  
Reply With Quote
Old 02-10-2014, 05:05 PM
  #889  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,525
Trader Rating: 14 (100%+)
Default

Originally Posted by nikos2002 View Post
What gearing are you trying to run (spur/pinion)?
its 96/50
skypilot is offline  
Reply With Quote
Old 02-10-2014, 08:18 PM
  #890  
Tech Master
iTrader: (6)
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,157
Trader Rating: 6 (100%+)
Default

Congrats Sean with the early success car. TQ and a win leaving the competition in the dust scratching their heads. I told you from the get go that you would love the car.

Thanks for the heads up about the DCJ axles. I just check all three of my r10s and all six axles were crossed. My first two sets are almost a year old and my newest set is about a month old. I too thought it was funky that my new set chattered at full lock. Gives me a good reason to rebuild/lube the axles.
trigger is offline  
Reply With Quote
Old 02-10-2014, 10:03 PM
  #891  
Tech Elite
iTrader: (78)
 
Josh-n-ya's Avatar
 
Join Date: May 2011
Location: Alameda, CA
Posts: 2,344
Trader Rating: 78 (100%+)
Default

Originally Posted by Sean Williams View Post
Make Sure that if and when you do buy the ARC double Jointed shafts, you check the pin positions, make sure you fully dismantle the joints and grease them accordingly before running them. While reassembling the shafts assembly make sure that the pins are on the same axis. Out of the box or package the pins are not on the same axis which will causes binding.
Yeah, you are right. I had some DJ CVD's in my box I just looked at. Ive never noticed any chattering while on the car though. I will try when it stops raining.
Josh-n-ya is offline  
Reply With Quote
Old 02-10-2014, 10:37 PM
  #892  
Tech Champion
iTrader: (9)
 
Join Date: Sep 2001
Location: Mongville
Posts: 6,982
Trader Rating: 9 (100%+)
Default

Originally Posted by skypilot View Post
figured it out, took off the new upright support and went back to the stock one.
Be wary doung this, you will have no support for the top deck, you can run like this, but in a crash you risk damaging the top deck, and the handling will be inconsistent.
Besercoe is offline  
Reply With Quote
Old 02-11-2014, 01:48 AM
  #893  
Tech Regular
 
Join Date: Jul 2007
Location: The Netherlands
Posts: 266
Default

Originally Posted by nikos2002 View Post
ARC was still looking at the thread and asked me to post this in answer to Govert's question:

"Basically if you use shorter bell crank and less shim (more backward) , you will have more ackerman angle.
use longer bell crank and more shim (more forward) , you will have less ackerman angle."
So basically, when I use standard bell crank (ARC-R101060) and just shim more and more, the ackermann would be less?

This means, the steering rods would be angled quite much. Is this correct and does this provide less ackermann?
In some cars, like TRF, the straighter the rods are positioned, the least of ackermann is provided. But if I get it right, the ARC shows opposite (like Xray always had/has).

Reminds me, what is the standard bell crank (steering arm) lenght? 18, 20 or maybe 22mm?

Last edited by Govert; 02-11-2014 at 05:21 AM.
Govert is offline  
Reply With Quote
Old 02-11-2014, 11:08 AM
  #894  
Tech Master
 
TheCoolCanFanMan's Avatar
 
Join Date: Apr 2004
Location: Watford
Posts: 1,738
Default

Originally Posted by Govert View Post
So basically, when I use standard bell crank (ARC-R101060) and just shim more and more, the ackermann would be less?

This means, the steering rods would be angled quite much. Is this correct and does this provide less ackermann?
In some cars, like TRF, the straighter the rods are positioned, the least of ackermann is provided. But if I get it right, the ARC shows opposite (like Xray always had/has).

Reminds me, what is the standard bell crank (steering arm) lenght? 18, 20 or maybe 22mm?
The stock bell crank is the plastic version which is 18mm, but an Aluminium one can be bought now. The 22mm is very good for a tight chicane
TheCoolCanFanMan is offline  
Reply With Quote
Old 02-11-2014, 11:47 AM
  #895  
Tech Regular
 
Join Date: Jul 2007
Location: The Netherlands
Posts: 266
Default

Originally Posted by TheCoolCanFanMan View Post
The stock bell crank is the plastic version which is 18mm, but an Aluminium one can be bought now. The 22mm is very good for a tight chicane
Thank you for confirming 18mm for std bell crank. So, now I'm confused....You say the 22mm is better for tight chicanes, so my conclusion is that 22mm bell crank increases ackermann in your situation. Right?

Let me put it this way; Is it right when I state that:

22mm bell crank combined with (let's say) 0mm shims is equal to 18mm bell crank combined with 4mm shims (makes 22mm total).

My main questions stays, what do I have to do to reduce ackermann?
Govert is offline  
Reply With Quote
Old 02-11-2014, 03:01 PM
  #896  
Tech Elite
 
sosidge's Avatar
 
Join Date: Dec 2001
Location: Bristol, UK
Posts: 3,881
Default

Longer cranks won't give exactly the same effect as more spacers.

The ackermann on this car works just like the ackermann on the other cars you mention. To have less ackermann (less difference in angle between the front wheels) use longer cranks or more spacers, to have more ackermann do the opposite.
sosidge is offline  
Reply With Quote
Old 02-11-2014, 03:54 PM
  #897  
Tech Regular
 
Join Date: Jul 2007
Location: The Netherlands
Posts: 266
Default

Originally Posted by sosidge View Post
Longer cranks won't give exactly the same effect as more spacers.

The ackermann on this car works just like the ackermann on the other cars you mention. To have less ackermann (less difference in angle between the front wheels) use longer cranks or more spacers, to have more ackermann do the opposite.
Thank you for clarifying sosidge. Now it's all clear. Will try this setting tomorrow...
Govert is offline  
Reply With Quote
Old 02-11-2014, 05:21 PM
  #898  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,525
Trader Rating: 14 (100%+)
Default

Originally Posted by Besercoe View Post
Be wary doung this, you will have no support for the top deck, you can run like this, but in a crash you risk damaging the top deck, and the handling will be inconsistent.
thanks, never thought of that..

as much as i hate to I guess I'll go small on spur..
skypilot is offline  
Reply With Quote
Old 02-11-2014, 06:32 PM
  #899  
Tech Elite
iTrader: (78)
 
Josh-n-ya's Avatar
 
Join Date: May 2011
Location: Alameda, CA
Posts: 2,344
Trader Rating: 78 (100%+)
Default

Originally Posted by skypilot View Post
thanks, never thought of that..

as much as i hate to I guess I'll go small on spur..
Smaller spurs and taller pinions work well with lower turn motors. Let say a 25.5 or 21.5.
Josh-n-ya is offline  
Reply With Quote
Old 02-11-2014, 07:50 PM
  #900  
Tech Champion
iTrader: (14)
 
skypilot's Avatar
 
Join Date: Mar 2007
Posts: 9,525
Trader Rating: 14 (100%+)
Default

Originally Posted by Josh-n-ya View Post
Smaller spurs and taller pinions work well with lower turn motors. Let say a 25.5 or 21.5.
yes, but that's the only to get to the desired ratio.

if I could get to 25.5, 21.5 or 17.5 ratio with a 106 spur I would. but I can't, so I don't.
skypilot is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service