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O.S. 21TM - Working on the Revo!

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Old 06-24-2007, 01:44 AM
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RCar
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Default O.S. 21TM - Working on the Revo!

One thing that always amazes me about Traxxas is their dedication to a careful design. Every time I want to change something on my Revo, and I have to take it apart, I always discover that the person(s) who designed this truck really put some thought into it.

I’m not even going to mention the Revo’s suspension design, or the easy start system, (things that no other company has) because those have been discussed many times before. I want to concentrate on the little things which make a modelers life easier. How easy it is to work on your Revo?

Turns out, it’s a piece of cake! Let’s take the arms for example. I replaced them all on my Revo 3.3 with RPM arms. I had no idea what I was doing, yet I completed the task in less than an hour. Not too many screws to screw around with, simple logic, and voila!



Yesterday I had to replace the stock engine, with an O.S. 21TM. Now here’s a task I thought. It seems though that Traxxas and O.S. engineers left me with no room for error. The new engine fits exactly where the stock one was, it’s only four screws, and I didn’t even have to mess around with the throttle linkage, because apparently Traxxas engineers came up with a way to control the carburetor without screwing the throttle linkage on it.





There are plenty of other examples like changing the travel rockers, or the shock absorbers, installing the tekno wing mount, replacing the easy start wires, converting to single steering servo. All very carefully designed to prevent human error and make my working experience on the Revo 3.3 pleasant.



oh yeah, don't even ask me about the pipe Since I had to fix it, I thought "what the hell"
Old 06-24-2007, 02:06 AM
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PiccoLow
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Default RE: O.S. 21TM - Working on the Revo!

That's not a bad lil home made trick there with the pipe fix. Good looking truck, let us know how you like the .21tm
Old 07-02-2007, 11:36 AM
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cady
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Default RE: O.S. 21TM - Working on the Revo!

Nice truck and please give us an update on the engine
Old 07-02-2007, 11:41 AM
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Default RE: O.S. 21TM - Working on the Revo!

Did the .21 just drop in, or did you need a bb conversion of some sort? j/w
Old 07-02-2007, 03:23 PM
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Default RE: O.S. 21TM - Working on the Revo!

The engine is fantastic! The Revo absolutely SCREAMS! I'm having a hard time keeping it on four wheels. I also installed the Traxxas Resonator pipe, which gives it even more low end power. So it's a pretty "torquie" truck

High end is not bad either. Definately faster than the stock TRX 3.3 engine. Everyone at the track is very impressed. I honestly didn't expect anything less from an O.S. engine. But hey, they've been making engines for 70 years now
Old 07-02-2007, 04:30 PM
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Default RE: O.S. 21TM - Working on the Revo!

You are losing performance with that pipe mod you have there. It takes longer for the gases to get out.
Old 07-02-2007, 05:52 PM
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cady
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Default RE: O.S. 21TM - Working on the Revo!

He installed the Resonator so I'm sure he still doesnt have that
Old 07-02-2007, 08:04 PM
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Default RE: O.S. 21TM - Working on the Revo!

I am assuming the OS .21TM is not offered in the states here as it's not on the OS website.
Old 07-02-2007, 08:14 PM
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Default RE: O.S. 21TM - Working on the Revo!

when did the .21 tm come out?
Old 07-02-2007, 08:24 PM
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Default RE: O.S. 21TM - Working on the Revo!

nice car and engine. tell us how the 21tm goes. im looking into one too[8D]
Old 07-02-2007, 09:14 PM
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Default RE: O.S. 21TM - Working on the Revo!


ORIGINAL: -EXTRA-

when did the .21 tm come out?
Note he is in Cyprus . You can get a O.S 21TM on ebay for at least 300, not worth it at all...not even worth 250.
Old 07-02-2007, 09:48 PM
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Default RE: O.S. 21TM - Working on the Revo!


ORIGINAL: RevoVega28


Note he is in Cyprus . You can get a O.S 21TM on ebay for at least 300, not worth it at all...not even worth 250.
Ya i was thinking about getting the O.S 21 until i saw how much more it was than the O.S 18
Old 07-02-2007, 11:10 PM
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Default RE: O.S. 21TM - Working on the Revo!

The black market prices for that thing are insane. I imagine it will still be around 225 to 250 when it comes out here though.
Old 07-03-2007, 12:16 AM
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Default RE: O.S. 21TM - Working on the Revo!

ORIGINAL: RevoVega28
Note he is in Cyprus . You can get a O.S 21TM on ebay for at least 300, not worth it at all...not even worth 250.
Dude, why do you keep saying that about this engine? Believe me, this engine is NOT expensive if you compare it with the prices over here. Whenever I tell someone that I bought this thing for 126CYP they go WOW thats cheap!!!

Maybe it's expensive there, but like I said, if it was any other engine brand, I wouldn't even bother bidding on it
Old 07-03-2007, 09:11 AM
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Default RE: O.S. 21TM - Working on the Revo!

ORIGINAL: RCar

ORIGINAL: RevoVega28
Note he is in Cyprus . You can get a O.S 21TM on ebay for at least 300, not worth it at all...not even worth 250.
Dude, why do you keep saying that about this engine? Believe me, this engine is NOT expensive if you compare it with the prices over here. Whenever I tell someone that I bought this thing for 126CYP they go WOW thats cheap!!!

Maybe it's expensive there, but like I said, if it was any other engine brand, I wouldn't even bother bidding on it
Well, too bad I don't live in Cyprus. It's going to start out a little high in the states then drop. Only way I would truely buy it if it has more low-end than my picco which I highl doubt but it could be. Get a video of it.
Old 07-03-2007, 09:23 AM
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Default RE: O.S. 21TM - Working on the Revo!

i want to see a .21 buggy engine in a revo, that would scream.
Old 07-03-2007, 09:31 AM
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Default RE: O.S. 21TM - Working on the Revo!

ORIGINAL: ttoks

i want to see a .21 buggy engine in a revo, that would scream.
Not would, they do! One locacl guy runs a modded VZ-B in his revo, perfect engine. It's the perfect racing engine, not too much torque like my Picco and awesome top-end. I kick myself every day for not getting a .21 Race engine.
Old 07-03-2007, 09:36 AM
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Default RE: O.S. 21TM - Working on the Revo!

hmm, i like RB's maybe the RB C6... nah stuff that nova 528 for me.
Old 07-03-2007, 09:41 AM
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Default RE: O.S. 21TM - Working on the Revo!

ORIGINAL: ttoks

hmm, i like RB's maybe the RB C6... nah stuff that nova 528 for me.
You say that now, it's stupid fast ina 8lb revo. Two older guys at my local races run nova n28xr's bump version....it's too much power to control. I would stick to a .21.
Old 07-03-2007, 10:17 AM
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Default RE: O.S. 21TM - Working on the Revo!

center diff, i would use it on the RB but it just sucks the life outa it, i like being able to wheelie when i want, but if i put the nova in there with million wt diff oil i bet it will still wheelie, might have a chat to freeze, he's running an EB modded 528 in his revo.
Old 07-03-2007, 10:27 AM
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Default RE: O.S. 21TM - Working on the Revo!

ORIGINAL: ttoks

center diff, i would use it on the RB but it just sucks the life outa it, i like being able to wheelie when i want, but if i put the nova in there with million wt diff oil i bet it will still wheelie, might have a chat to freeze, he's running an EB modded 528 in his revo.
Go to Mvbashers.org, he is the owner over there. Very good site!

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