Losi xxx-4

Old 09-07-2010, 10:22 AM
  #2836  
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Originally Posted by desert truck 1
HELP, was searching this thread for an answer to a gearing problem...all I found was the same question with no answer.
Is it that you have to run the xxx-s spur moulded shape as a mod ...no slipper?

HELPPPPP?
yeah run the xxx-s spur, then run the smaller pulleys (41T the ones with the dot on them) front and rear, this means your internal ratio goes from 42/20 = 2.1 to 41/23 = 1.78 so with the 88 spur you can easily get to the ratios required for 17.5 racing and you also dont need to modify anything, u gain 3 teeth on the centre pulley, lose 1 on each diff so the tensioner can cope with the 1 tooth variance and running no slipper isnt a problem in 17.5 racing
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Old 09-07-2010, 02:15 PM
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I've been running the xxx-s spur for a while now and I haven't had any issues. Using the smaller pulley in front and aluminum outdrives all around. There isn't a lot of big jumps where I run but have heard the belt tension pulley can break sometimes on rough tracks when not running a slipper. Even so, not having to deal with that slipper is well worth the risk.
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Old 09-15-2010, 04:09 AM
  #2838  
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Default 1-way or another

Got around the gearing issues, thanks...now I am running a one-way in front...need to get some new outdrives for a one-way, any ideas where to purchase these?
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Old 09-15-2010, 07:38 AM
  #2839  
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Horizon , Losi Parts house , and your LHS .
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Old 11-25-2010, 01:01 PM
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I just received a Losi xxx4 and have been looking at putting a one way in it. When i look for one it shows a left side part number, and a right side part number. Are both of these needed? seams like I read somewhere that the xxx4 uses only the right side. Is this correct? (probably not) And where is the best place to buy one? I have been reading the Losi one is junk, is that true?

Also I have had it at the track a few times, and for some reason it keeps throwing the belt. I have had several people try and tension it, and for some reason keeps throwing it. Everyone that I have talked to that has a xxx4 says they haven't had this problem. I have pulled the entire drive train and checked all the bearings, ect... and have found no problems. I'm running a 10.5 motor in it.
Thanks for any help you can provide.
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Old 11-26-2010, 06:47 PM
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I'll try to help you...

First - forget the one way. You don't need it. the Losi one-way was originally designed for on-road and it just doesn't hold up to the rigors of off-road racing. Team drivers are running diffs in their cars. I have a one-way made by a british company that I fitted into the car that solved the durability issue. I still don't run it - way too much steering.

Second - are you using reverse in your buggy? If so, that is probably throwing the belt. It's not meant to go backwards. If not, make sure you have the right belt and it's not overly stretched out. You may just want to replace the belt if that's the case.
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Old 11-30-2010, 03:52 PM
  #2842  
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Default losi esc

could i ask for someone who is running a xxx4 g+ to post or send a pic to me of how they have there losi esc mounted in the vechile i cant really see a good way to mount it and the compaciter and i hate to run a diffrent esc any help would be cool thanks for looking
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Old 11-30-2010, 04:52 PM
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Originally Posted by tntchance
could i ask for someone who is running a xxx4 g+ to post or send a pic to me of how they have there losi esc mounted in the vechile i cant really see a good way to mount it and the compaciter and i hate to run a diffrent esc any help would be cool thanks for looking
Here you go... It actually fits really well - fan and all...







I love this car!
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Old 11-30-2010, 08:57 PM
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Awesome thanks for the help that is what one option was I came up with I just was not sure if servo tape would hold the cap good if I took a hard hit or bad jump thanks alot the pics really do help
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Old 11-30-2010, 09:40 PM
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Originally Posted by ChrisWolfson
Here you go... It actually fits really well - fan and all...







I love this car!
Car looking fresh Chris.

Have you ever tried the steering rack?

Last edited by LittleGoob93; 11-30-2010 at 10:51 PM.
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Old 11-30-2010, 10:20 PM
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Are they just worn out tyres on the rear of that ChrisWolfson or is that slicks your using?
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Old 12-01-2010, 01:08 PM
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Originally Posted by LittleGoob93
Car looking fresh Chris.

Have you ever tried the steering rack?
Funny you ask - I'm actually dremeling away on a chassis right now and have already fabricated the rack out of carbon fiber. I will be trying the rack very soon! I just have to finish the fabrication work and then bolt the components onto the new chassis.
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Old 12-01-2010, 01:10 PM
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Originally Posted by Drift_Buggy
Are they just worn out tyres on the rear of that ChrisWolfson or is that slicks your using?
Those tires are not worn out - we run slicks made from Pink Taper Pins at our track in western PA. www.mcculloughsrcracing.com. I usually run slicks on the front, but the tires on there now were used to tame down the steering a little bit. It worked very well, actually.
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Old 12-01-2010, 01:23 PM
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Originally Posted by Drift_Buggy
Are they just worn out tyres on the rear of that ChrisWolfson or is that slicks your using?
I take it you never raced on a hard packed clay track ?
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Old 12-03-2010, 04:10 PM
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Originally Posted by ChrisWolfson
Funny you ask - I'm actually dremeling away on a chassis right now and have already fabricated the rack out of carbon fiber. I will be trying the rack very soon! I just have to finish the fabrication work and then bolt the components onto the new chassis.
I actually like the steering rack a lot. I saw a big difference, I dont know if anyone else did but it felt a lot better with the rack.
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