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Old 03-18-2007, 07:56 PM   #1
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Default What weight oil in XXX-4 on rough track?

What weight shock oil in XXX-4 on rough track? i race at hotrod hobbies in Ca. and the track is rough because they have 1/8 buggys and truggys racing on it too, i have 30 waight shock oil and it seems way to stiff, i have the springs way out loosened and the car wont even bottom out from like 3-4 feet... what shock oil do u guys recomend on ough tracks???

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Old 03-18-2007, 08:04 PM   #2
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The only people that know the answer to such a vague question are the people that run there.
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Old 03-18-2007, 10:41 PM   #3
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The XXX-4 is not a very good buggy in the rough. You can make it do ok but it really never be really consistant. I ended up upgrading mine to an X-5 to get better rough track handling after fighting it for awhile. The X-5 uses the suspension of the XX-4 which is legendary for its rough track capability. The difference is night and day.
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Old 03-18-2007, 11:03 PM   #4
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I saw the thread title and first thing that came to mind was...

"change the shock oil? no, don't think that woudl do it. hmmm..... how about change the car to a XX4?"

Seriously I have never owned a XXX4... but it's known that they aren't too happy on rough stuff.

But... do you have limiters that are preventing it from bottoming? What pistons/springs? Mabye it has like #60 pistions??? Probably need more info to help...

My best advice is probably to check out the setups on Losi's site and try one from a rough track...
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Old 03-19-2007, 01:53 AM   #5
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You should look at changing the pistons and springs at the same time
front:
top of shock outside hole on tower, bottom inside hole on arm
black spring
30 wt. #5-6-6 piston
camber link bottom outer hole on tower (shortest)
-1.5 camber
#5 pivot
one-way
cvd's

rear:

top of shock inside hole on tower, bottom inside hole on arm
red spring
27.5 wt. #5-6-6 piston
camber linkoutside hole on tower outside hole on hub
-1.5 camber
-3 pivot (-3 degrees anti-squat)
diff (plastic outdrives w/saver rings)
dogbones

A good site to check out losibk2.com. I own a xxx4 and drive it everywhere.

Cheers
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Old 03-19-2007, 10:34 AM   #6
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agreed with others here. Guys I know who ran on a really rough track changed the pistons and went with 27.5 to 25 weight oil all around.
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Old 03-19-2007, 05:56 PM   #7
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Default Piston size spec

Drift Buggy,
You say #5-6-6. Is that a #55 piston (Orange) with 2 holes drilled out to a #56 drill-bit size? Is it that much different than a un-drilled #56 (Red) -- never tried drilling pistons before.
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Old 03-19-2007, 07:02 PM   #8
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You mean a #56 pistion with one hole drilled out to #55.

Yep, that's a 5-6-6...
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Old 03-22-2007, 10:17 PM   #9
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Quote:
Originally Posted by Drift_Buggy
You should look at changing the pistons and springs at the same time
front:
top of shock outside hole on tower, bottom inside hole on arm
black spring
30 wt. #5-6-6 piston
camber link bottom outer hole on tower (shortest)
-1.5 camber
#5 pivot
one-way
cvd's

rear:

top of shock inside hole on tower, bottom inside hole on arm
red spring
27.5 wt. #5-6-6 piston
camber linkoutside hole on tower outside hole on hub
-1.5 camber
-3 pivot (-3 degrees anti-squat)
diff (plastic outdrives w/saver rings)
dogbones

A good site to check out losibk2.com. I own a xxx4 and drive it everywhere.

Cheers

How do I switch from CVD's to bones in the rear? Which bones & axles do I need to get?
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Old 03-22-2007, 10:32 PM   #10
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Even if you put a rough track setup on it. The XXX4 is still going to be difficult to drive when the track gets rough.
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Old 03-23-2007, 07:58 AM   #11
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Don't think I need a rough setup for the indoor track, but I would like to know how to go about it anyway.
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