Losi XXX-S

Old 03-10-2003, 09:16 PM
  #5671  
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Actually it's more like checking fr minute differences in shock pre-load..... my chassis is perfect!!
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Old 03-10-2003, 10:45 PM
  #5672  
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Default Super Slick Track Setup Needed

Well I am going to race at the slickest assphalt track in the universe on Sunday again and am looking for some help. I have tried diffs and get plenty of traction. WHen I try a one-way i am deffinetly faster but I just cant get the rear of the car to hook up enough, its just to loose, beyond the "loose is fast" idea. Last time out here was the one-way setup i used in the main:

all graphite car(not g+)

Front-

50 weight oil
high roll center
black springs!
2F mount with 0 carriers(stock)
stock shock and camber positions
sorex 32r

Rear-

50 weight
low roll center
white springs!
0R mount
1/2 degree carriers
stock shock and camber locations
sorex 32r

The front did start to push a bit when i used the blacks up front but the rear was still like driving on ice so its like the rear just wont stay planted on or off power. Any ideas on things to try would be appreciated.

Thanks, Blake.
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Old 03-11-2003, 04:32 AM
  #5673  
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man, you use black and white springs on asphalt I would only go that stiff on carpet. try blues in front silvers in rear
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Old 03-11-2003, 04:58 AM
  #5674  
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Blake- What pistons are you using. Just by looking at what you have posted I would go 10 lower on the oil (40wt) and go with the blue front and silver rear just to start out with. I would also take off the 1/2 degree hubs and stick with the stock one's.
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Old 03-11-2003, 05:12 AM
  #5675  
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I have the standard xxxs but with alloy drive shafts threaded short shocks ect. Is it worth upgrading to the G+ spec or should I sell it and buy a G+ kit. If I upgrade which bits will I need.
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Old 03-11-2003, 06:30 AM
  #5676  
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I have done both and I could not really tell a difference in performance,To make your "stock" close to a G plus you need the rear arms,offset rear hubs,yellow belt,Ti turnbuckles,bearings for the steering,rear shock tower,low roll center blocks on the front,hi roll blocks for the rear,graphite arms,hubs...It would be cheaper to buy the G plus.
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Old 03-11-2003, 08:28 AM
  #5677  
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Blakesrc, are those stiff or soft white springs on your car?
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Old 03-11-2003, 10:58 AM
  #5678  
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Blakes - try lowering the spring combination by about half!

On slick asphalt , I tend to run in the area of pink - red springs... You are waaay to stiff for anything slick.... not to mention the fact that if the whites are the 30 lb variety - you will never get the car to hook up.... unless you like the rear end beating the front to the corner!

Wilde
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Old 03-11-2003, 05:19 PM
  #5679  
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Thanks to all that have replied so far, here is a bit more info....

The whites I have on the rear are the softest ones available, I believe 7.6 lbs. And yes the blacks are the 25lb springs. I was attempting to get rid of steering but as i said I started to run into a loose and pushing situation. I am also using red 56 pistons in the front and orange (55's?) in the rear. The rear just wont hook up.

Blake
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Old 03-11-2003, 05:32 PM
  #5680  
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can you install a slipper clutch and the green belt from the new 4wd off road car into the XXX-S? I looking to add some durablility for my brushless motor. I just going to street bash, jumps, etc etc. Thanks
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Old 03-11-2003, 06:48 PM
  #5681  
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Blake, try matching your springs up a little closer. When the rear of the car is drastically softer than the front, it'll make it rotate a ton more. Try doing blue front, red rear maybe.
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Old 03-12-2003, 04:27 AM
  #5682  
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nightbreed- slipper yes, belt no...... it's a little longer to accomidate te longer wheel base.

on a side note..... WHY are you gonna jump a sedan???
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Old 03-12-2003, 08:01 AM
  #5683  
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Blakesrc, I did a similar thing when I was trying to set-up my XXX-S for the first time. I got as soft as orange on the back with purple fronts but instead of increasing rear traction it span out all the time. The Losi is good because it works well with the same rate sprigns front and back, I suggest either blues or silvers front and back.
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Old 03-12-2003, 05:30 PM
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Jeffc, LouisB etc..

I guess I will start with silver rears and blue fronts and see what happens. If the car is still extremely loose, should I try widening the wheelbase by moving the arm spacers or increasing front kickup etc? Any ideas are appreciated.


Blake
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Old 03-12-2003, 06:31 PM
  #5685  
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Default What have I done?

Well, I just took the front end of my XXX-S graphite apart & cleaned all the vearings, lubed everything, etc. After Iput it all together, I set the camber (-1), and set the ride height to about 3mm. Then I went to the back end.

I can't seem to get the ride height up where it should be. With the shock's screwed down all the way, I'm still under 3mm.

I'm pretty sureI have put something together wrong, but I don't know what.

Here is a pic:
The back end

.And another

Can anybody see what I've messed up? I've tried moving the shock end point around -- doesn't seem to help.

I'm measuring ride height in the back under the main part of the chassis, (under the last battery cell, basically).

thanks,
dave
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