CAN-AM (BRP) Discussions about CAN-AM ATVs.

Got a question on Castor for the Pro's.....TBR, HSD you out there???

Thread Tools
 
Search this Thread
 
Old Mar 12, 2003 | 11:22 PM
  #1  
jetjock16's Avatar
Thread Starter
|
Pro Rider
Joined: Oct 2001
Posts: 373
Likes: 1
Default Got a question on Castor for the Pro's.....TBR, HSD you out there???

im settin up my front end and doing test rides the last couple days trying to get it just the way i like it. Im working with just the ASR uppers right now, i may end up going with a full set up TBR's if these dont work out.........
Anyway... my question is im getting in there gettin some pretty exact angles and heres what ive found:

Stock there was a few degrees of positive camber AT FULL DROOP continueing to ZERO and into negative camber at full compression.... as we all know the steering is a bit twitchy but ive come to be used to it.

Now ive tried adding a few degrees at full droop showing about 6-7 degrees, but still at full compression it is at 0-1 degree negative...... . test ride is a good mix of being more stable, less twitchy

Next, wanting to avoid zero or negative camber at any point in the suspension:

i went to about 8-9 degrees of pos. castor at full droop, at full comp is about 1-2 degrees positive:
handing?.... this thing likes to go straight, i would be comfortable at 80mph with no hands... Really getting a workout trying to take a course with alot of turns, takes alot of muscle to turn this thing.

Sooo.. whats the right answer from the pro's, ive seen HSD post that you would want to avoid zero or negative castor at any suspension setting, now that ive acheived this, at normal squat it is a bissnatch to turn threw the tight course, She likes to go straight....

Is it acceptalbe for the castor to go to zero-1 degree negative at full compression?

any advice is great here guys as im just playing around with an anglefinder and then takin her out for a test ride.
Jetjock16
 
Reply
Old Mar 13, 2003 | 09:37 AM
  #2  
HillbillyDS's Avatar
Range Rover
Joined: Jan 2003
Posts: 170
Likes: 0
Default Got a question on Castor for the Pro's.....TBR, HSD you out there???

I ran into the same perdicament while tuning my ASR uppers & all I can say is toss aside all your andle measuring tools & judge it by feel. I found my sweet spot to be around 4 or 4 1/2 turns out if I recall correctly. Don't get caught up with the numbers because everybody's preference & riding style / terrain will be different. Adjust them in 1/2 turn increments & ride!
 
Reply
Old Mar 13, 2003 | 10:11 AM
  #3  
Jetjock16atWork's Avatar
Range Rover
Joined: Mar 2003
Posts: 195
Likes: 0
Default Got a question on Castor for the Pro's.....TBR, HSD you out there???

Hillbilly, you mean about 4 turns out on both sides (of 1 aarm) or just on the forward adjustment, 4 more than the rear, (this is the castor adjustment point) ive found that about 4 turns more on the forward adjustement is about 8 degrees at droop to 1 degree at compression, If you mean 4 turns out on the forward and rearword, than that is not much of an increase over stock, youd be running like 2-3 at droop and well past zero to plus 3-4 degrees of pos castor at full compression(basically the same as stock).
 
Reply
Old Mar 13, 2003 | 11:03 AM
  #4  
DSRide's Avatar
Trailblazer
Joined: Apr 2002
Posts: 94
Likes: 0
Default Got a question on Castor for the Pro's.....TBR, HSD you out there???

You should be happy with 7-8. I have my DS at 9 for desert racing. You can allways call TBR if you have any ?.
 
Reply
Old Mar 13, 2003 | 01:35 PM
  #5  
HillbillyDS's Avatar
Range Rover
Joined: Jan 2003
Posts: 170
Likes: 0
Default Got a question on Castor for the Pro's.....TBR, HSD you out there???

I was talking about 4 additional turns on the forward adjustment, I usually run anywhere from 3 1/2 to 4 1/2 depending on terrain & stability needed. Keep in mind I also run a steering damper so I can get away with a little less positive castor. Actually, I like to run it just slightly twitchy so my turning effort is reduced while I can dial most of it out with the damper when needed on the trail. Hope this helps!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
EIF
Chinese Quads
1
Apr 20, 2017 07:15 PM
shimanok2
Buying an ATV
94
Jan 29, 2016 07:37 PM
Ahtatu
General Chat
9
Sep 28, 2015 12:14 PM
2many2ride
Honda
7
Sep 27, 2015 04:35 AM
Quadzilla Heritage
Classifieds, Garage Sale & Swap Shop
0
Sep 25, 2015 01:39 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 10:58 AM.