Xray T4 '13

Reply

Old 02-08-2013, 06:34 AM
  #2686  
Tech Adept
iTrader: (3)
 
bucknuts's Avatar
 
Join Date: May 2006
Location: Columbus, OH
Posts: 213
Trader Rating: 3 (100%+)
Default

Originally Posted by Huskerfan1212 View Post
Front camber1
Toe out 1
r/h 5.5
Rc high and long

Rear cambet 1.5
Toe in 2
R/h 5
Rc high and short links
More rear Toe! Stock is 3 deg. Try going with the thicker shim, I think the kit includes 3 different thicknesses? silver (2deg), black(3deg), gold(3.5-4deg)
bucknuts is offline  
Reply With Quote
Old 02-08-2013, 09:54 AM
  #2687  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Originally Posted by Adam B View Post
Corey, did you cut the stock upper deck, or the thin one? Assuming you cut the stock one, would using the 1.6mm top deck give you the same or close to the same result?
He told me they cut the stock one, and that using the 1.6mm might be too much for indoor carpet.
Adam B is offline  
Reply With Quote
Old 02-08-2013, 09:57 AM
  #2688  
Tech Master
iTrader: (19)
 
Meradin's Avatar
 
Join Date: Mar 2011
Posts: 1,299
Trader Rating: 19 (100%+)
Default

I know the setup were posted for mod racing, I am wondering how much of these setups and changed will help in 17.5?

What kinda setup changes are needed for a slower class or are they pretty universal?
Meradin is offline  
Reply With Quote
Old 02-08-2013, 09:59 AM
  #2689  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Originally Posted by Huskerfan1212 View Post
Adding the +.75 to the rear raising the roll center. Will that give more rear grip? Looking for more rear grip less steering.
I am confused with what Skiddins said about this. Wouldn't the +75 roll centers (short ones), lower the center of gravity in the rear and give more rear grip?
Adam B is offline  
Reply With Quote
Old 02-08-2013, 10:05 AM
  #2690  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Originally Posted by Mera'din View Post
I know the setup were posted for mod racing, I am wondering how much of these setups and changed will help in 17.5?

What kinda setup changes are needed for a slower class or are they pretty universal?
my car is basically the mod set up he posted back in October and it is pretty good. That set up was with basically all box stock parts, as tuning parts were not available yet. If you go off his 13.5 setting and running 17.5, you should be ok. The MOD setup will probably give you way too much steering at the slower speeds. But this depends on where you race and grip levels also. The 2 main tracks I go to have a ton of grip. I heard the grip at the Birds wasn't as high as some of my friends expected. Another issue is the setups are based on Andrews driving style, so to make them work, you may have to adjust for that also.
Adam B is offline  
Reply With Quote
Old 02-08-2013, 01:30 PM
  #2691  
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,820
Default

Originally Posted by Adam B View Post
I am confused with what Skiddins said about this. Wouldn't the +75 roll centers (short ones), lower the center of gravity in the rear and give more rear grip?

Raising the rear roll centre blocks at the wishbone lowers the roll centre.

If you lower the upper link on the inside that also raises the roll centre

Neither affects the CoG, (that's down the ride height and weight distribution etc.) just where the car will try to roll around it.

Skiddins
Skiddins is offline  
Reply With Quote
Old 02-08-2013, 01:43 PM
  #2692  
Tech Regular
 
Join Date: Apr 2009
Posts: 282
Default

Originally Posted by Skiddins View Post
Raising the rear roll centre blocks at the wishbone lowers the roll centre.

If you lower the upper link on the inside that also raises the roll centre

Neither affects the CoG, (that's down the ride height and weight distribution etc.) just where the car will try to roll around it.

Skiddins
Skiddins,
Putting the +.75 wishbone mounts on the rear would raise the roll centre
FLAT OUT is offline  
Reply With Quote
Old 02-08-2013, 03:21 PM
  #2693  
Tech Fanatic
iTrader: (22)
 
Bigz84's Avatar
 
Join Date: Dec 2010
Posts: 860
Trader Rating: 22 (100%+)
Default

Originally Posted by FLAT OUT View Post
Skiddins,
Putting the +.75 wishbone mounts on the rear would raise the roll centre
correct....

also what skiddins said about lowering the upper links is correct...it would raise roll center....

now I thought this was to take away traction? Lowering rc gives you more traction, right?
Bigz84 is offline  
Reply With Quote
Old 02-08-2013, 03:44 PM
  #2694  
Tech Apprentice
 
Join Date: Jun 2012
Posts: 98
Default

How about rebound in the shocks? Some none?
Huskerfan1212 is offline  
Reply With Quote
Old 02-08-2013, 03:47 PM
  #2695  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Originally Posted by Huskerfan1212 View Post
How about rebound in the shocks? Some none?
Usually none to 10%
Adam B is offline  
Reply With Quote
Old 02-08-2013, 05:18 PM
  #2696  
Tech Master
iTrader: (6)
 
Join Date: Jun 2004
Location: SoCal
Posts: 1,175
Trader Rating: 6 (100%+)
Default

Anytime you raise the hinge pins, it takes away traction on that end(less ability to roll). If you lower the hinge pins you gain traction on that end(more ability to roll)
trigger is offline  
Reply With Quote
Old 02-08-2013, 05:33 PM
  #2697  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Originally Posted by trigger View Post
Anytime you raise the hinge pins, it takes away traction on that end(less ability to roll). If you lower the hinge pins you gain traction on that end(more ability to roll)
I stand corrected, I have studied the set up book a little more tonight. Good to know because tomorrow night both cars are being rebuilt.
Adam B is offline  
Reply With Quote
Old 02-09-2013, 06:32 AM
  #2698  
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

I notice on the xray set up sheets there is mention of an optional motor mount. Anybody know anything about this?
Adam B is offline  
Reply With Quote
Old 02-09-2013, 09:24 AM
  #2699  
Tech Master
iTrader: (3)
 
Xpress's Avatar
 
Join Date: Nov 2001
Location: Dirt sucks!
Posts: 1,631
Trader Rating: 3 (100%+)
Default

Originally Posted by Adam B View Post
I notice on the xray set up sheets there is mention of an optional motor mount. Anybody know anything about this?
I believe the motor mount is "Y" shaped and connects to the bottom of both sides of the layshaft mount.
Xpress is offline  
Reply With Quote
Old 02-09-2013, 10:42 AM
  #2700  
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,820
Default

Originally Posted by FLAT OUT View Post
Skiddins,
Putting the +.75 wishbone mounts on the rear would raise the roll centre
Oop's correct, I got it right originally, before it was questioned.


....Then I had a blonde moment during typing my response
Skiddins is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service