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This is a place to share knowledge related to 1/12th scale racing. It is not to be used for conversations.

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Associated 12R6
https://www.teamassociated.com/cars_.../Factory_Team/ Jul 2017 release
DISCUSSION THREAD - Team Associated 12R6

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Old 04-22-2008, 12:41 AM
  #28501  
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Originally Posted by Scottrik View Post
Then again, after Sunday there's only Multi-variable Calculus between me and that math degree. Look out 8th grade math students...Mr. Smith is coming to a classroom near you. Fall '08 release date.
Originally Posted by Slapmaster6000 View Post
Kids! I've seen Scott's text books. Just one word...... "run!"
OMG I'm so glad I'm not in school any more. Congratulations Scott!
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Old 04-22-2008, 02:13 AM
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Thats not true I'm gonna school ya in mini!
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Old 04-22-2008, 09:04 AM
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About the diff rings being flat, I was thinking if I keep the rings in the same place in the diff all the time and get some nice smooth grooves worn in them wouldn't that take care of the flatness issue and increase the surface area so the diff is "grippier" . . .

Everyone at the track says, "Oh those are grooved pretty bad, you should switch sides/them out."

?

Originally Posted by InspGadgt View Post
I run as many diff balls as possible. Even if the diff ring does flex some of the pressure will still be distributed across all the balls, flexing or not. This does allow you to run less tension to get your desired diff setting. The one problem I have noticed though is that diff rings, being stamped, are rarely flat from inside to outside. A bit of sanding fixes that though.
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Old 04-22-2008, 09:30 AM
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Grooves in the diff rings aren't always all that bad but I always sand them off when I rebuild the diff. Sanding is the only way to get the rings flat (short of a machine shop).

I never run the inside and outside row of diff balls in the Kimbrough gears. It always seems to make my diff act all funny. I don't know if it's the extra drag of so many balls or that the inner balls turn slower than the outside balls. I just don't like both rows.

On a side note, I'm finding that the rollouts that Novak has on the site for 12th are a little "conservative". Ok, a lot conservative. So I've been working on a little spreadsheet to give a better starting point for 12th (and a GTB) based on what I was running at CEFX and a couple times at Grand Rapids. The chart is based on KV ratings so it might work with some of the other motors but I haven't tried many of them yet. I need to run a little more mod this year to update the mod side (I am the master of thermalling the speedo).

The sheet's just a starting point and you should check the temp but gear for LAPTIMES. Temp is just for safety. (the 21.5 rollout was just a curve fit I didn't run it)
Attached Files
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12th gearing.pdf (9.0 KB, 270 views)
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Old 04-22-2008, 11:23 AM
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Originally Posted by Notso View Post
Thats not true I'm gonna school ya in mini!
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Old 04-22-2008, 03:16 PM
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Hoo boy! I just learned to insert an image! Laugh all you want, but it's a big accomplishment for a computer illiterate like me

Since we were discussing balanced motor pods, here is a pic of the latest OD12 prototype with a weight centered pod

[IMG][/IMG]
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Old 04-22-2008, 03:19 PM
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Originally Posted by odpurple View Post
Hoo boy! I just learned to insert an image! Laugh all you want, but it's a big accomplishment for a computer illiterate like me

Since we were discussing balanced motor pods, here is a pic of the latest OD12 prototype with a weight centered pod

[IMG][/IMG]
One word... Beastly!!

That is one sick 12th.
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Old 04-22-2008, 03:24 PM
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!beautiful car! another great design by OD nice work man
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Old 04-22-2008, 06:27 PM
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Very nice work indeed. I always have a soft spot for t-bars.

What's the little pc board thingy in the shrink wrap? Is that one of the older Spheres? Which wind b/l motor and does the speedo get too hot without the heat sink. Only reason I ask this is I plan on torturing my old Sphere in a naked state with a 13.5. When I let the magic smoke out, I will replace it. And last but not least, how do you like that shock?

bb
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Old 04-22-2008, 07:46 PM
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I believe the little shrink wrap thingy is a MRT Transponder?
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Old 04-22-2008, 07:49 PM
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Originally Posted by Slapmaster6000 View Post
Very nice work indeed. I always have a soft spot for t-bars.

What's the little pc board thingy in the shrink wrap? Is that one of the older Spheres? Which wind b/l motor and does the speedo get too hot without the heat sink. Only reason I ask this is I plan on torturing my old Sphere in a naked state with a 13.5. When I let the magic smoke out, I will replace it. And last but not least, how do you like that shock?

bb
1. MRT PTX transponder, cloned shrink wrap version. It has my number in it plus 20 others I can switch to if I loan the car.
2. Sphere Competition 2007. They are still made in addition to the TC version.
3. That is a 17.5, I've run 13.5 and 10.5 with no problems. At Vegas last year we ran a 5.5 in mod with an older Sphere Comp with no problems.
4. The Cyclone shock is just the best one available now. It's a real shock with a bladder and all. The shaft is a little long, you can use it as is and sometimes run out of spring adjustment, or put a spacer under the piston.
The shock has a great feel to it, Josh Cyrul has even run them on the Scythe.

Magic Smoke!
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Old 04-22-2008, 09:40 PM
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Well since this is the 12th scale forum, I will ask the obvious then.... that xpt looks petite, easy to place and I guess the cloning feature could be useful (just read a little bit in that forum).... but is it sensitive to carbon fiber like the AMB counterparts? I know if I am on a loop track or bridge track, I may remount the PT so it will be picked up the best.

I don't even recognize the LRP speedos anymore once the heat sink is in place. I have a Sphere Comp as well, but it's stuck in the touring car. Just don't recall what it looked like.
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Old 04-22-2008, 10:25 PM
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From what I read the signal on the SPT is a bit stronger then the AMB one so it should be less susceptible to graphite. I have a couple on the way so I should know more in a couple weeks.
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Old 04-23-2008, 12:42 AM
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Originally Posted by Slapmaster6000 View Post
Well since this is the 12th scale forum, I will ask the obvious then.... that xpt looks petite, easy to place and I guess the cloning feature could be useful (just read a little bit in that forum).... but is it sensitive to carbon fiber like the AMB counterparts? I know if I am on a loop track or bridge track, I may remount the PT so it will be picked up the best.

I don't even recognize the LRP speedos anymore once the heat sink is in place. I have a Sphere Comp as well, but it's stuck in the touring car. Just don't recall what it looked like.
You pegged it, Brian. I have to mount my shrink wrapped PTXs on top of the servo to work with a bridge and can leave them on the chassis on a loop track. The original iPT has a stronger signal (I also have a few of those) and doesn't care where it is placed.

You guess the cloned number could be useful? Try never having to go check your car to see what the transponder number is. No matter how many classes I enter I can enter the same number and never have to move a transponder around

Your esc is in the touring car? What is that? I don't recognize their existence. Take it out! Put it in the 1/12th. Hopefully the 1/12th won't reject the transplant
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Old 04-23-2008, 01:03 AM
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Originally Posted by RCSteve93 View Post
One word... Beastly!!

That is one sick 12th.
Originally Posted by Benedict View Post
!beautiful car! another great design by OD nice work man
Thanks guys,
Benedict, please post some pics of your new car when you can, it's a beauty
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