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  1. #1
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    3.3 Break In Jato vs. Revo

    Okay I am a little confused. I bought a new Jato and ran through the breakin at lunch and after work.

    How does it make since that the break in procedure is identical to the revo?

    The revo has a 150CC tank and the Jato has a 75cc tank? They are both 3.3s.

    Does that mean the revo is getting broke in better or does that mean the Jato is not getting broke in enough.

    Please explain!

  2. #2
    RC Turnbuckle Jr.
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    not a big deal, just run 2 tanks(75cc) for each stage.
    Slash PE & Ja-two.

  3. #3
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    Quote Originally Posted by RC-Crazy
    not a big deal, just run 2 tanks(75cc) for each stage.
    Well its too late now. I already followed the breakin following what came in the box. I started thinking about it when I realized that I could get the breakin done so quickly. I just want to know others thoughts on this.

  4. #4
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    You know that makes a lot of sence how can you break the engine in the same way on two diffrent trucks with diffrent fuel tank sizes. that would mean that either the rove break in should be cut in half or the Jato break in should be doubled I wonder if Traxxas has come across this.
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  5. #5
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    Maybe it's a plot from Traxxas to make us use more fuel or maybe its the oil company's LOL
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  6. #6
    RC Turnbuckle Jr.
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    it realy doesn't matter to me... I have my owne break in method. if you ask 100 ppl. there's 100 diff way for engine break in.
    Slash PE & Ja-two.

  7. #7
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    maybe the gearing is different in the two puting a diff load on the engine. making one take longer than the other. probably not but oh well. but i doubt that traxxas could over look something like that.

  8. #8
    RC Turnbuckle Jr. Desert JATO's Avatar
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    Quote Originally Posted by OffRoadPede
    Okay I am a little confused. I bought a new Jato and ran through the breakin at lunch and after work.

    How does it make since that the break in procedure is identical to the revo?

    The revo has a 150CC tank and the Jato has a 75cc tank? They are both 3.3s.

    Does that mean the revo is getting broke in better or does that mean the Jato is not getting broke in enough.

    Please explain!
    you're talking logic here. like RC- Crazy explained it's not that big difference,
    if you just go with 4 tanks it's enough i guess.
    each manufacturer applied max precaution all around to secure any fall ups
    from being happened later.

  9. #9
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    I would still like someone that knows to explain why it is the same break in with half the nitro and identical motors/mills. I am interested in the explanation.

  10. #10
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    well i have a rustler and a revo with about the same amount of fuel on both...

    the rustler still runs stronger... i think the shorter break in is better for the engine life... imho...

    but there is one thing... the first tank on the rustler was idle
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  11. #11
    RC Turnbuckle Jr. Desert JATO's Avatar
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    Quote Originally Posted by OffRoadPede
    I would still like someone that knows to explain why it is the same break in with half the nitro and identical motors/mills. I am interested in the explanation.
    i don't know if this following comprehension should be applied here:
    the manual book of a New GMC Denali says that you have run for
    about 1000 Km at medium speed to break'n the engine at the same time
    this break'n mileage is the one requires for the small 4 cylinder chevy avio.

    2 different size motors with the same break'n procedure.

  12. #12
    Traxxas Employee Zinno's Avatar
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    In order to simplify procedures, we use the term "tanks" to indicate the amount of running required instead of "cc's", "ounces", or "minutes". This aspect is not an exact science. The key to the break in is the heat cycling we prescribe and the rpm ranges the engine sees (and when), not as much the exact amount of fuel used. It's therefore mostly irrelevant the difference in tank sizes between vehicles.

  13. #13
    RC Turnbuckle Jr.
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    and for me living in SA we work with ml... cc and ml is actually exactly the same thing... 125cc is 125ml...
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  14. #14
    RC Turnbuckle Jr.
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    Sorry to bring back an oldish thread guys but I have wounded the same thing and am still not sure. Like Zinno says the key to braking in his heat cycling and the rpm ranges. But having a tank twice as big would mean you would heat cycle it for much longer per tank than one with only a 75cc fuel tank.
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  15. #15
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    Well you are putting a different load on the engine with the trucks weight and trans. The Jato being lighter will burn fuel slower because you are pulling less weight. The trucks size and trans also plays a major role in break in. Its the same as putting a small engine in a big truck, it will burn fuel twice as fast than putting it in a smaller truck. Break in is exactly that, you are breaking that engine into the truck that it is in. Say you break that engine in on a Jato and you install it into a Revo. The performance of the engine will be alot different until you tune it to the Revo. So yes the specific truck it is in is most of the break in, not so much the fuel tank size. Also each model has its on specific factory tuned pipe which helps in the fuel saving. I have both Jato and Revo and my run times are very close from full to empty. With this said you are actually getting better break-in on the Jato because you have less strain on the engine components.
    Last edited by DavidSee2; 05-03-2009 at 02:48 AM.
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  16. #16
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    not just fuel tank differences the revo is like twice as heavy than the 4tec.......... That just completly throws off break in
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  17. #17
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    Correct. The size of the truck is major asset in the break-in. The 4-Tec engine should last longer before rebuild is needed. Of course the engine speed is way diff between the two. More strain less gain, Less strain more gain.
    Jato Dragon

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