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Old 06-01-2007, 07:05 AM   #2641
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Originally Posted by Fastforward
I received my TC5 from Tower Hobbies Reno location yesterday. I spent 6 hours builing last night and I have some questions about the shocks. I will use this car on carpet with foam tires. I used both the large and small blue foam pieces above the shock diaphram as the kit instructions called for. This gave me a LOT of rebound, more that I have ever seen with any shock before. When I look at Juho's set up sheet on the Associated site it indicates that he did not use rebound foam. It also says 25% rebound. Since there are no foam tire set ups on the Associated site I am asking for help.

So here are my questions:
1. Does 25% rebound mean that the shock rebounds 25% of the travel?
2. Should I use rebound foam for foam tire carpet application?
3. What effect does rebound have anyway? I would think it is just like adding spring rate.

Thanks for your help.

Big Bad Bob
Bob,

For the most part the team guys are not running much rebound in the shocks. 25% rebound does mean the shock rebounds 25% of its travel when pressed in. I only use the small foam in mine and it has around 25% or so.

As for the effect of rebound I am not 100% sure so I'll let someone who does answer that for sure. I would assume like you that it assist in adding spring rate.

EA
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Old 06-01-2007, 07:10 AM   #2642
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Thats for 2 arms. Caster blocks and hubs are in pairs as well.

You can use pistons from the TC3/4. Thats what all the team guys were using at the Reedy race.....#2's.

EA

awesome. good to see someone selling spares the right way.
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Old 06-01-2007, 07:26 AM   #2643
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Just a question regarding the AE team driver's setups from the RROC, why was no-one using sway bars on the setups?

Thanks in advance for the info.

- Leonard.
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Old 06-01-2007, 09:06 AM   #2644
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Originally Posted by DirtyDog3375
Just a question regarding the AE team driver's setups from the RROC, why was no-one using sway bars on the setups?

Thanks in advance for the info.

- Leonard.

I was suprised at this too!! But at the same time if made me very happy since I can't stand driving a car with sway bars.
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Old 06-01-2007, 09:12 AM   #2645
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Originally Posted by ROBORAT
highwayman: dont ask, just get one already!


haha... maybe i'll seriously consider it when the spool arrives...
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Old 06-01-2007, 10:20 AM   #2646
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Quote:
Originally Posted by Fastforward
So here are my questions:
1. Does 25% rebound mean that the shock rebounds 25% of the travel?
2. Should I use rebound foam for foam tire carpet application?
3. What effect does rebound have anyway? I would think it is just like adding spring rate.
1. Yes, you are correct.
2. With thick oil and a small piston hole the piston speed is very, very slow. The rebound foam helps to "spring" the shaft out of the shock in this situation. This is why most of the rubber tire setups (#2-40 wt) don't use the foam insert. The piston speed is quite quick as opposed to most carpet setups (#3-60 wt) so the foam is necessary to get the correct feel on the track.
3. To quote a smart man, "Let the spring do the springing". You are correct, adding the foam does create a spring force.
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Old 06-01-2007, 10:21 AM   #2647
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Quote:
Originally Posted by DirtyDog3375
Just a question regarding the AE team driver's setups from the RROC, why was no-one using sway bars on the setups?

Thanks in advance for the info.

- Leonard.
I tested with both sway bars and no sway bars and felt the car was more consistent without them on there. We tried them, just didn't prefer the feel of them.
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Old 06-01-2007, 12:17 PM   #2648
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I'm having trouble getting the outdrives to go onto the diff. I already pre-compressed the spring like in the directions, but it seems like it is too short to reach the locknut inside the plastic piece. I know im probably sounding like a total noob, but can someone please help me?
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Old 06-01-2007, 12:30 PM   #2649
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Originally Posted by K_Spec_RC
I'm having trouble getting the outdrives to go onto the diff. I already pre-compressed the spring like in the directions, but it seems like it is too short to reach the locknut inside the plastic piece. I know im probably sounding like a total noob, but can someone please help me?
You have to push the nut deeper than flush in the plastic retainer. If you don't you lose 2 or 3 mm of legnth.
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Old 06-01-2007, 12:32 PM   #2650
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Quote:
Originally Posted by Fastforward
You have to push the nut deeper than flush in the plastic retainer. If you don't you lose 2 or 3 mm of legnth.
Makes sense, I'll be trying that. Thanks.
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Old 06-01-2007, 12:32 PM   #2651
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I'm having the same problem. It's as if the thrust bolt is not long enough.
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Old 06-01-2007, 12:32 PM   #2652
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Originally Posted by mrrcguy
I'm having the same problem. It's as if the thrust bolt is not long enough.
Push the nut deeper into the plastic retainer untill it bottoms out. That is deeper than flush. That should help.
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Old 06-01-2007, 01:28 PM   #2653
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Default Gearing

Some of you may have noticed that part of the team used 64 pitch and some used 48 pitch. Most of this is due to the fact that team drivers didn't have 64 pitch pinions. There has been no concrete evidence that either is better with the car, however I could theorize that the 48 pitch would be stronger just due to the larger teeth. Bottom line...you don't need to go crazy with either 48 or 64 pitch...just use what you're comfortable with.
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Old 06-01-2007, 01:55 PM   #2654
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Default Diff nut

Quote:
Originally Posted by mrrcguy
I'm having the same problem. It's as if the thrust bolt is not long enough.
Put the screw thru the plastic piece.Thread the nut onto it and pull it down to the bottom of the plastic piece.Works great. Do this outside the outdrives of course.
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Old 06-01-2007, 02:20 PM   #2655
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Originally Posted by 51
Some of you may have noticed that part of the team used 64 pitch and some used 48 pitch. Most of this is due to the fact that team drivers didn't have 64 pitch pinions. There has been no concrete evidence that either is better with the car, however I could theorize that the 48 pitch would be stronger just due to the larger teeth. Bottom line...you don't need to go crazy with either 48 or 64 pitch...just use what you're comfortable with.

Thanks Brent,

I am looking forward to building the car this weekend


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