Go Back  R/C Tech Forums > General Forums > Electric On-Road
HELP!! XRAY Shock Shaft O Ring!! >

HELP!! XRAY Shock Shaft O Ring!!

HELP!! XRAY Shock Shaft O Ring!!

Reply

Old 12-21-2009, 06:55 PM
  #1  
Tech Master
Thread Starter
iTrader: (39)
 
gonzo416's Avatar
 
Join Date: Aug 2003
Posts: 1,938
Trader Rating: 39 (98%+)
Default HELP!! XRAY Shock Shaft O Ring!!

What does it mean on the XRAY Basic Rubber Tire Setup Sheet,? Not to use the shock shaft o ring? Which one is it? I have been trying to get 25% rebound and it is impossible.
gonzo416 is offline  
Reply With Quote
Old 12-21-2009, 07:52 PM
  #2  
Tech Master
iTrader: (94)
 
The Hawaiian's Avatar
 
Join Date: Apr 2006
Location: by a lake, FL
Posts: 1,810
Trader Rating: 94 (100%+)
Default

I think it means a o ring under the piston for less down travel...I could be wrong
The Hawaiian is offline  
Reply With Quote
Old 12-22-2009, 01:44 AM
  #3  
Tech Fanatic
iTrader: (2)
 
jammincrtjames's Avatar
 
Join Date: Mar 2007
Location: GA
Posts: 969
Trader Rating: 2 (100%+)
Default

Originally Posted by gonzo416 View Post
What does it mean on the XRAY Basic Rubber Tire Setup Sheet,? Not to use the shock shaft o ring? Which one is it? I have been trying to get 25% rebound and it is impossible.
Drill a hole in the shock cap. You will have 20 percent rebound and a very consistent shock.
jammincrtjames is offline  
Reply With Quote
Old 12-22-2009, 02:59 AM
  #4  
Tech Adept
 
Join Date: Jan 2009
Location: UK
Posts: 124
Default

Originally Posted by jammincrtjames View Post
Drill a hole in the shock cap. You will have 20 percent rebound and a very consistent shock.
how big a hole and where exactly isnt there a ball joint behind the cap cheers
Burney is offline  
Reply With Quote
Old 12-22-2009, 04:19 AM
  #5  
Tech Master
iTrader: (89)
 
trerc's Avatar
 
Join Date: Mar 2008
Location: Indiana
Posts: 1,821
Trader Rating: 89 (100%+)
Default

I drilled a 1mm hole in my cap just below the pivot ball at an angle that exits in the center of the cap. My shocks now have zero rebound and I think they're great.
trerc is offline  
Reply With Quote
Old 12-22-2009, 04:29 AM
  #6  
Tech Fanatic
iTrader: (2)
 
jammincrtjames's Avatar
 
Join Date: Mar 2007
Location: GA
Posts: 969
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by jammincrtjames
If you want to get a dead shock, where do you drill the hole?

- Directly through the shock cap straight up through the top
or
- On a 45 degree angle coming out of the top

Do you still bleed the shocks from the bottom until you have no rebound? Any help is appreciated

From another forum member...

i use the 2nd smallest drill bit included with a dremel set (not sure the size.. but i bet Google might know) and make about a hole at a 60 degree. i start a little under the mount point for the shock. the hole w/in the shock cavity almost everytime ends up dead center.

once you have this hole you wouldn't need to bleed the shocks. they are instantly dead and PERFECT!
jammincrtjames is offline  
Reply With Quote
Old 12-22-2009, 06:27 AM
  #7  
Tech Addict
 
Join Date: Dec 2004
Posts: 517
Default

With no rebound, car reacts too slow. You need to have fast rebound for better reaction.
ioxqq is offline  
Reply With Quote
Old 12-22-2009, 07:11 AM
  #8  
Tech Master
iTrader: (94)
 
The Hawaiian's Avatar
 
Join Date: Apr 2006
Location: by a lake, FL
Posts: 1,810
Trader Rating: 94 (100%+)
Default

I use the bottom cap to bleed the shock till I get the desired rebound...works great.
The Hawaiian is offline  
Reply With Quote
Old 12-22-2009, 08:19 AM
  #9  
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,943
Default

You don't need to drill anything, just follow the instruction manual and it turns up fine every time.

Make sure you don't damage the shock shaft when you screw in the bottom ball cup.
niznai is offline  
Reply With Quote
Old 12-22-2009, 08:26 AM
  #10  
Tech Master
iTrader: (3)
 
Danny-b23's Avatar
 
Join Date: Feb 2009
Location: Saskatoon, SK, Canada
Posts: 1,346
Trader Rating: 3 (100%+)
Default

Originally Posted by ioxqq View Post
With no rebound, car reacts too slow. You need to have fast rebound for better reaction.
It makes more sense to me to tune the suspension feel by use of the springs rather then the amount of air in the shock bladder.
Danny-b23 is offline  
Reply With Quote
Old 12-22-2009, 08:28 AM
  #11  
Tech Master
iTrader: (89)
 
trerc's Avatar
 
Join Date: Mar 2008
Location: Indiana
Posts: 1,821
Trader Rating: 89 (100%+)
Default

Originally Posted by Danny-b23 View Post
It makes more sense to me to tune the suspension feel by use of the springs rather then the amount of air in the shock bladder.
I agree.
trerc is offline  
Reply With Quote
Old 12-22-2009, 09:51 AM
  #12  
Tech Addict
 
Join Date: Dec 2004
Posts: 517
Default

Don't get me wrong I don't mean build with air inside. I mean rebound is good for rc car. I have tested it in many times. Rebound is necessary.
ioxqq is offline  
Reply With Quote
Old 12-22-2009, 09:57 AM
  #13  
Tech Addict
iTrader: (15)
 
gacjr0's Avatar
 
Join Date: Dec 2002
Posts: 737
Trader Rating: 15 (100%+)
Default

Originally Posted by gonzo416 View Post
What does it mean on the XRAY Basic Rubber Tire Setup Sheet,? Not to use the shock shaft o ring? Which one is it? I have been trying to get 25% rebound and it is impossible.
Shock bleeding is an art. It takes practice.
Maybe build some shocks without the intention of putting them on the car right away. Bleed the just for the practice of getting batches that match.

Niznai said it right, I forgot how to bleed these shocks until I reread the instructions, then it was cake.
gacjr0 is offline  
Reply With Quote
Old 12-22-2009, 10:25 AM
  #14  
Tech Elite
 
niznai's Avatar
 
Join Date: Feb 2009
Location: All over the place
Posts: 2,943
Default

Originally Posted by gacjr0 View Post
Shock bleeding is an art. It takes practice.
Maybe build some shocks without the intention of putting them on the car right away. Bleed the just for the practice of getting batches that match.

Niznai said it right, I forgot how to bleed these shocks until I reread the instructions, then it was cake.

The Xray shocks are some of the best things there are in R/C today, and I really don't think one can improve much on them. You just need to trust their instructions and that they know what they're talking about and you'll see they know their stuff.

Art is when you write poetry, not when doing shocks. The Xray manual demonstrates that myths about the need to have a good command of black art in setting/tunning your car are dispelled as soon as a proper explanation is given. Leave art/magic for people who can not explain what they're doing (more often than not because they can't understand themselves). Or for those who write poetry.
niznai is offline  
Reply With Quote
Old 12-22-2009, 10:31 AM
  #15  
Super Moderator
iTrader: (52)
 
Cpt.America's Avatar
 
Join Date: Mar 2009
Location: Washington State
Posts: 11,083
Trader Rating: 52 (100%+)
Default

Originally Posted by Danny-b23 View Post
It makes more sense to me to tune the suspension feel by use of the springs rather then the amount of air in the shock bladder.
Rebound isn't tuned with how much air is in the shock bladder, its how much oil is inside the shock body. There is a big difference between having damper rebound, and simply going up to the next stiffer setting in your springs, either by the spring itself, or shock position.
Cpt.America is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service