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Losi xxx-4

Old 06-03-2004, 01:02 PM
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It changes the geometry in the rear end a little. To me it made the car feel a little more stable in the rougher stuff.
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Old 06-04-2004, 09:55 AM
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Thank you fro your help Jon
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Old 06-04-2004, 09:59 AM
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Not a problem. That's what I'm here for.
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Old 06-04-2004, 10:10 AM
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Hey jon,
I was wondering if you can help me with my batterries? I have all 3300's and for the numbers on them like the run seconds I know is the runtime discharge rate I know but the voltage what effect does it have if the voltage is high or low. And I have the MRC 969 superbrain charger and I cannot charge any higher than 4.5 amps is that ok? Because some people say charge it with 5 amps what difference does it make if I charge them at 4.5 or 5 amps?
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Old 06-04-2004, 10:20 AM
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Don't want to get this thread off topic. Send me a PM on this and I'll be happy to help.
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Old 06-24-2004, 10:21 PM
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Just picked up a XX-4 tonight on ebay... WHat are some of the differences in the xxx-4 besides the saddle pack?? what parts can be used from the xxx-4?? any info gearing too...

A Trinity Monster Stock pro is coming with it also, but we run mod for the xxx-4's, what do you think will be the best gearing to kinda keep up to the mods and not try to get lapped to badly?? 20/92 22/92?? WHAT IS GOOD!
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Old 06-24-2004, 11:55 PM
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The XX4 and XXX4 are two completely different cars. As far as I know, there's a few suspension parts that are the same but that's about it. The XX4 was a front motor mounted, double belt car with saddle packs and the xxx4 is a rear motor mounted single belt drive car with the cells down the right side of the car. As far as gearing a Monster to keep up with modified, not going to happen. There's a reason there's modified motors and stock motors. Two totally different classes. If you're running this car with others running mod, pick up a mod motor. You should be able to get a deacent machine wound modified for $40 or less. About what you'd spend on a good Monster stock.
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Old 06-25-2004, 04:51 AM
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The XX-4 actually has 3 belts. Word from people who have used both the XX-4 and XXX-4 is that the XXX-4 has more punch, probably due to its drivetrain being simple but the XX-4 handles better.

As for your motor choice, if you are used to mod you probably already know what to get. If not, I would just run a 19T motor. It should have good speed, nothing like a full blown 10T but you will feel comfortable with it till you get used to driving it. Main thing is be consistent. At the track i went to a field of mod trucks was beaten by a guy running a chameleon motor, the main thing was his setup was on target and he was consistent.

If you are interested in upgrading this vehicle to a more current design, check out www.4wdrc.com as they have the X-5 conversion coming out soon. This will convert your XX-4 to a single belt drive train.
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Old 06-25-2004, 08:39 AM
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I agree with almost everything that Jon & Cain said. The XX-4 uses 3 belts. It handles and jumps better than the XXX-4, but lacks the snap on acceleration because of the extra driveline mass.

I do think you'd be best with a mild mod motor, about a 14 X 2 to start, though a 19T wouldn't be bad. Start out by gearing any mod motor 8 teeth over the wind for a XX-4. The biggest spur you'll get in is the 86, and that requires removing some material from the chassis. The XX-4 uses standard buggy/truck spurs.

The X - 5 conversion kit will give you the same snap acceleration as a XXX-4 while retaining the handling/jumping ability of the XX-4.
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Old 06-25-2004, 09:38 AM
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ok, here is the buggy that i picked up

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5906072433

is this good, i thought so, cause of the monster stock and the esc
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Old 06-25-2004, 10:37 AM
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looks like you got the standard car with some upgrades on it and not the worlds edition. It may have the upgrades were it counts however.

If you haven't done so, you may want to consult with some XX-4 owners to see what extras you should pickup right away if you don't have good stock at your LHS.

If you go with a 19T, look into the Reedy Quad Mag. this motor has insane torque which will be good for XX-4. Honestly if you use that Monster I wouldn't be suprised if you have to really gear it low and may have some overheating issues with it.
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Old 06-25-2004, 12:42 PM
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Monster stocks are more of a touring car motor. They're more for top end. Off road in stock you need torque. Personally I'd never put a stock motor in a 4wd (I haven't run a stock motor in any car in more than I year. Just not my thing.) But I know a lot of stock guys like the Orion Core stocks for off road. It's power band is more on bottom end.
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Old 06-29-2004, 04:58 AM
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I agree. If you are going to use a stock motor, I would go with a more torque based one. the Reedy MVP if you put the big jim brushes on it makes great torque as well. I believe the Core can be tuned the same as the MVP with the narrow brushes trick.

I got a P2k2 that I am planning on giving a shot in my 4 wheeler. I think that getting more people into 4wd stock or a 19T class is good overall as more people in general will run 4wd, similar to how touring has taken off and has a large stock following.
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Old 06-29-2004, 10:40 AM
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Hey, I'm considering a XXX4 except it's the original, not the G+... Is there anything wrong with it besides the known? I'm planning to upgrade the the G+ arms all around and the Black Belt conversion... This would be my first 4wd, so please help me, I'm only interested in the XXX4 or the MRC SB Sport...?
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Old 06-29-2004, 10:46 AM
  #450  
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From what I've seen, I'd stay away from the MRC. Just didn't seem like a quality built car. If you get the original XXX4, I'd get the new shock towers and arms first. Mount the rear shocks behind the towers and flip the rear arms left to right, right to left. As you break the hinge pin mounts, I'd replace those with the aluminum ones.
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