Losi xxx-4

Old 07-14-2006, 09:31 AM
  #1036  
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The entire X5 car or the xx4 and xxx4 conversions can be bought at:

www.4wdrc.com

The car is pretty easy to build and the little hand fitting is easy. The manual is one of the best I have seen and is well layed out and leaves nothing to doubt. Their customer service is second to none too.
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Old 07-14-2006, 01:09 PM
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So sport10, I take it you choose the x-5 over the xx-4 and xxx-4? Have you had anything else to compare it to? The more I look at one the more I wish I had one :-D
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Old 07-15-2006, 01:25 PM
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Message to Doughty,

Thanks for the answer about the motor pinion.

Yesterday, I bought 15,16 and 17 teeth motor pinions. As you wrote, I've tried the 16 teeth. The car worked great : good acceleration et great top speed with good but tired 3700 battery packs

Two runs on the street... warm weather (about 25 c) and no thermal shutdow (without any fans). Useless to say that I'm quite satisfied.

I've got another question : I received others springs with the car but I don't know their rate. I've got front light green springs, rear red springs and rear dark red springs. Is there a chart from Losi or something else ?

Cheers.
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Old 07-15-2006, 01:48 PM
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What motors (turns and winds) are you guys running in your xxx-4 on what track surface? My friend wants to get a new armature (has a 12x2 now and it doesn't accelerate nearly fast enough) but wants advice from other people as to what to get. He's running on damp dirt, ok traction, not as good as clay, ofcourse.
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Old 07-15-2006, 10:39 PM
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Why is he not getting acceleration with a 12x2? Is the motor weak? Maybe batteries? Wheelspin? Drivetrain issues?

I was running a 14x2 in mine on a decent size track. using x-2000's on a low-med bite, dusty track I had all the acceleration I needed.
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Old 07-16-2006, 12:51 AM
  #1041  
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Ofcourse you had enough acceleration on a dusty track, you didn't have the grip to use more. Our track is as much is not more grip than asphalt because it's wet dirt so we can use all the acceleration we can get. Also, we have to clear giant jumps.

He's getting lots of acceleration, but he could use more. How much acceleration is needed is all a matter of grip and driver skill. If you've got the grip to use that acceleration, and the skill to go that fast, then you need more acceleration.

Sponsored touring car guys use 7turn motors, I'm sure that's far more than enough acceleration for most people, others are trying to find more because they can get the grip, including Novak who is making a 3.5turn brushless motor that is supposedly comparable to a 5.5 brushed. If you think 14 is fast imagine 5, lol.
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Old 07-16-2006, 01:01 AM
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I am running a 9 double, and it is probably too much motor for me, I would try a 10x2 or 11x2. Although the 9x2 is pretty comaprable speed and pull wise(running) as a Novak 6.5 with comparable batteries and tires.
HTH
Rod
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Old 07-16-2006, 08:23 AM
  #1043  
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HVAC25000,

My X5 started life as a XXX-4 G+. While it was a good buggy and was durable once you upgrade the front pivot brace to aluminum it was lacking in some areas namely the suspension and steering. So I upgraded it to an X5. Now my wheeler has twice as much steering and killer suspension to boot without loosing any of the xxx-4's good quaility. The X5 also it a much better jumper. The aerodynamics Xfactory designed into the body and wing work too. The more you push this car the better it drives. I have raced against xxx-4s,xx-4s,bj4s,and other x5s and this car can hold its own quite easily with the best of them.

A good all around choice for a motor is a 10x1 or 10x2. Checkout the Team Checkpoint 10x2. I have been very impressed with the Checkpoint mod motors. They are extremely fast and wear a long time before needing the comm cut and brushes replaced. Also, Losi Studs might help your friend get hooked up better in those conditions. I would use Silver front and Red on the rear. This should help gain some steering too.
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Old 07-16-2006, 03:18 PM
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Thanks for the info, guys. I'll probably steer him towards a 10x1 or maybe a 9x2.

Right now he has an Orion V2. Can a Checkpoint arm be put in that can and bell, or should he just get an Orion arm?

Were both running bowties at the moment. I'm running a 6.5r and have no traction issues, that I have noticed, but I do have a set of Losi studs so next time I'm down there I'll see if those work better.
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Old 07-16-2006, 04:36 PM
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Originally Posted by HVAC25000
Right now he has an Orion V2. Can a Checkpoint arm be put in that can and bell, or should he just get an Orion arm?

Yes, you can swap V2 arms and checkpoint arms with no problems.
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Old 07-16-2006, 07:02 PM
  #1046  
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You are totally right HVAC2500. You only need it if you can use it. I have raced Mod before in touring car. It's fast. But take a guess as to what most of the offroad motors are. 11-14 turn doubles. If he want's more, fine. But if he's not getting enough with a 12 turn for offroad, maybe a tire choice id something that should be looked at. Car setup for more acceleration.

I wasn't trying to state that he was not a good driver or anything. But just a blanket statement of I want more acceleration doesn't ask a whole lot. There are other factors to consider. That's why I asked what I did.
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Old 07-16-2006, 07:36 PM
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Well, good to know that Scott is absolutely useless when it comes to getting information. I'll be sure to block him right after this post. I like how he accused me of making the blanket statement of "I want more acceleration" but I NEVER made that statement. All I did was ask what motors people were running.

To everyone else that is capable of reading and comprehending English, Sport, Gator, YFZ, thanks again for the info!
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Old 07-16-2006, 08:11 PM
  #1048  
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The checkpoint arm will not fit in your friends can. You need to buy the complete motor. Go to towers site and read up on it. I really believe he will not need more than a 10x1 motor. Just make sure he gets the right pinion size for it. Should be around a 17 or 18 tooth. Also, make sure the belt is not too tight, there is no binding in the drivetrain, and the slipper is not set too loosely. The slipper on the XXX-4 is famous for loosing up especially after a rebuild. If all is right that car should accelerate like a rocket with a 10x1.
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Old 07-16-2006, 08:31 PM
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Hmm, different lengths.
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Old 07-16-2006, 08:46 PM
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Originally Posted by HVAC25000
(has a 12x2 now and it doesn't accelerate nearly fast enough)
By this comment, I thought this was part of what he was asking. You guys should read the PM I received from him. Very mature. Whatever.

Personally I ran a 14x2 in 4wd last year with very good results. I ran a 13x6 in 2wd with good results as well. The tracks I run on, these motors were very well suited. This year I have a GTB 5.5 for 4wd.

By the way, this last post was for everybody other than HVAC2500.
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