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Old 03-29-2009, 09:23 PM   #646
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Just picked up a pair of 009s. Can't wait for them to get here
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Old 03-30-2009, 05:54 PM   #647
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Originally Posted by Adam? View Post
That's an easy generalization to make, but it's wrong.

Foam seems easy if you're just throwing them on the car and running it once. It's got way more grip and feels better than the best rubber car. However, when you start to compete, you realize even with all your grip, other guys are putting 4 laps on you. There's a lot of little tricks in foam to be fast, maybe even more than rubber. The work required to keep it there is what's driving people back to rubber tires.

A 13.5 foam car will do significantly faster laps than a 6 cell mod rubber car. I think that's part of the reason mod isn't as popular in the states. Here's an example from IIC 2008. (13.5 foam | mod rubber)
True, but racing in the US seems to be more biased towards small indoor carpet tracks where foams are used, where as in Europe the racing tends to be at permanent outdoor tracks.
The amsller the track, the less of an advantage a Mod has.

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2) Why do they call them EU and US versions, and not asphault and carpet editions?
Presumably marketing for their two biggest markets

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Old 04-02-2009, 08:12 PM   #648
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What 17.5 motor is good for this car?
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Old 04-02-2009, 08:19 PM   #649
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Ive trie the novak and the hacker I seem to like to hacker a litte better. Ive heard the trinity duo is good too though ive never tried it.
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Old 04-02-2009, 10:04 PM   #650
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Hey Guys just built my new T209 rubber spec. ,This was an easy build for sure , My question is ,what size pinion gear to use with this 48 pitch 84 tooth spur gear that came in the kit?.I will be using a 13.5 in it . thanks
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Old 04-03-2009, 08:41 AM   #651
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Question:

Both of my 009s just arrived in the mail, and I see that the rear differentail comes pre-assembled. Being kind of a tech head, and like knowing how each piece of the car goes together, should I tear it down and rebuild it? Or toss it right into the build? What do you guys suggest?

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Old 04-03-2009, 08:55 AM   #652
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On mine, I popped them open to make sure there was enough grease on the diff balls. I didn't look at the thrust bearings because I didn't have the proper tool to get access to them. I put everything back together and after a few laps readjusted the diff and haven't looked back since.
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Old 04-03-2009, 08:55 AM   #653
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Quote:
Originally Posted by Cpt.America View Post
Question:

Both of my 009s just arrived in the mail, and I see that the rear differentail comes pre-assembled. Being kind of a tech head, and like knowing how each piece of the car goes together, should I tear it down and rebuild it? Or toss it right into the build? What do you guys suggest?

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Just run them. Go easy the first few laps to break them in, then adjust them. They'll last quite a while before needing to be re-built.
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Old 04-03-2009, 09:03 AM   #654
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Quote:
Originally Posted by Cpt.America View Post
Question:

Both of my 009s just arrived in the mail, and I see that the rear differentail comes pre-assembled. Being kind of a tech head, and like knowing how each piece of the car goes together, should I tear it down and rebuild it? Or toss it right into the build? What do you guys suggest?

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I have run mine both straight out of the box and after my own rebuild. They're quite good straight out of the box, and as someone else mentioned, you cannot access the thrust assembly without a specialized tool (a pair of C-Clip expanders/compressors). Be sure to adjust the diff patiently and frequently by running it a few times on the track. I tend to run my rear diff fairly loose and it stays smooth once properly seated and adjusted.
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Old 04-03-2009, 09:39 AM   #655
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Quote:
Originally Posted by J.Filipow View Post
you cannot access the thrust assembly without a specialized tool (a pair of C-Clip expanders/compressors).
So what do people tend to do? Does the thrust assembly just last forever then? (I know what the thrust assembly is, as I have built many diffs in my cars, but I admit I don't know what thrusts do)

Anymore information out there on why a "special" tool is required?
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Old 04-03-2009, 09:42 AM   #656
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The thrust won't last forever, but it should last you a good amount of time if you break in and adjust your diff properly.

Xray diffs are some of the nicest and longest lasting around so don't feel like you're going to have to go digging into your diff all the time.

I do recommend getting some kind of c clip expander like J mentioned though... you'll eventually have to use it if you want to rebuild you diff completely!
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Old 04-03-2009, 09:45 AM   #657
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Or just buy a new assemble diff and throw out the old one... If you are lazy like me....
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Old 04-03-2009, 09:58 AM   #658
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Or just buy a new assemble diff and throw out the old one... If you are lazy like me....

I guess it would depend on how much the tool is. I have NO problem spending hour after hour tinkering and re-building things on my RC cars, locked away in a room rocking out to some music

Anybody have a link to this "tool"??? Are directions for rebuilding the thrust in the assembly book? (haven't opened mine yet)
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Old 04-03-2009, 10:05 AM   #659
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http://www.sears.com/shc/s/p_10153_1...ap+ring+pliers

Something like that, just make sure the tips are small enough to fit in the clip. You can probably find a cheaper set at walmart or something.
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Old 04-03-2009, 12:05 PM   #660
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Another question for you guys. being out of TC racing for the better part of 6 years, and now making the jump right into 17.5 brushless, what about all my old pinion gears of the past? I keep reading people talking about using 40 tooth pinions and such, which is HUGE comparred to what I am used to, back in the brushed days.

Considering the stock 009 spur, a redline 17.5 brushless, where would be a middle ground starting point for a pinion for outdoor/rubber/ashpault?
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