Go Back  R/C Tech Forums > General Forums > Electric On-Road
Weight Distribution - How to do perfectly? >

Weight Distribution - How to do perfectly?

Weight Distribution - How to do perfectly?

Reply

Old 04-12-2004, 06:36 PM
  #76  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default Re: wedge adjustment

Originally posted by morpwr
it does not matter at all what the spring rates are in the front and rear as long as you adjust them equally
It matters alot on full scale cars where the springs in the front might be twice the rate of the rear. With our late model the front springs are 500# and the rears are 225#. in that case if I adjusted the front the same as the rear I raise my front ride height when I adjust wedge. The same adjustment on a twice as heavy spring makes twice the adjustment. So the fronts need to be turned half as much as the rear. On a Touring car the spring split is minimal so the split isnt noticed. But if there was a 15# in the front and a 30# in the rear you couldnt make the same adjustment.
Speedie is offline  
Reply With Quote
Old 04-12-2004, 06:46 PM
  #77  
Tech Apprentice
 
Join Date: Mar 2004
Location: buffalo ny
Posts: 72
Default wedge

as i was crew chief and engine builder for an open wheel modified it should not change your ride height going even turns in and out on opposite corners.modifieds dont even run the same springs on all for corners as many oval cars dont.why your car does that i dont know but it shouldnt as all you are doing is making the light springs carry more weight and the heavy ones less.
morpwr is offline  
Reply With Quote
Old 04-12-2004, 06:50 PM
  #78  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default

The heavier weight springs are doing twice the work as the lighter springs. Making the same adjustments to the front as the rear makes twice the adjustment in the front as you are doing in the rear.
Speedie is offline  
Reply With Quote
Old 04-12-2004, 06:55 PM
  #79  
Tech Apprentice
 
Join Date: Mar 2004
Location: buffalo ny
Posts: 72
Default wedge

i always adjust the springs evenly in and out and never had ride height change,like i said i dont know why yours does .so i guess we will have to agree to disagree on this one and everyone can take both our opinions for what they are worth.
morpwr is offline  
Reply With Quote
Old 04-12-2004, 06:57 PM
  #80  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default

I guess. I learned that from Joe Garrison from GRT race cars and I have verified it on the scales.
Speedie is offline  
Reply With Quote
Old 04-12-2004, 07:02 PM
  #81  
Tech Apprentice
 
Join Date: Mar 2004
Location: buffalo ny
Posts: 72
Default wedge

i llearned from a local track record holder myself(ie oldtimer),i dont know who your guy is but im not from out that way.you may do something different in your setting up your car than i did as we used longacre scales also.but not important as long as the end result is the same.
morpwr is offline  
Reply With Quote
Old 04-12-2004, 07:16 PM
  #82  
Tech Elite
iTrader: (1)
 
JusBox's Avatar
 
Join Date: Sep 2003
Location: Central VA
Posts: 2,170
Trader Rating: 1 (100%+)
Default

Originally posted by AzNDRAGster
The bigger the spur gear you get, the more the motor is moved to one side shifting the weight.
depends on the car. on an xray it lower the COG
JusBox is offline  
Reply With Quote
Old 04-12-2004, 07:44 PM
  #83  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default

Thats a good point I never thought of that.
Speedie is offline  
Reply With Quote
Old 04-12-2004, 09:46 PM
  #84  
Tech Master
 
Tek Nickal's Avatar
 
Join Date: Jan 2004
Location: Earth
Posts: 1,301
Default

So used to shaft driven cars.
Tek Nickal is offline  
Reply With Quote
Old 04-12-2004, 10:15 PM
  #85  
Tech Initiate
 
Join Date: Mar 2004
Posts: 26
Default

Interesting. But did you calibrate the scales before hand? The problem with this kind of system is that are all four scales have the same reading.
GFXmania is offline  
Reply With Quote
Old 04-12-2004, 10:21 PM
  #86  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default

That 4 scale system he has the picture of has leveler device built in to it.
Speedie is offline  
Reply With Quote
Old 04-13-2004, 12:07 AM
  #87  
Tech Initiate
 
Join Date: Mar 2004
Posts: 26
Default

Oh, I see.

Thanks, Speedie.
GFXmania is offline  
Reply With Quote
Old 04-13-2004, 01:44 AM
  #88  
Tech Master
 
Speedie's Avatar
 
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844
Default

I would still level the board and check the scale surfaces themselves with a small level.
Speedie is offline  
Reply With Quote
Old 04-13-2004, 01:02 PM
  #89  
Tech Master
 
Tek Nickal's Avatar
 
Join Date: Jan 2004
Location: Earth
Posts: 1,301
Default

What you could do is buy 2 small levels and attach it to the horizontal and vertical sides of the board.
Tek Nickal is offline  
Reply With Quote
Old 04-13-2004, 01:51 PM
  #90  
Tech Addict
iTrader: (15)
 
Join Date: Apr 2004
Posts: 676
Trader Rating: 15 (100%+)
Default

speedy phat is right on the issue of heavier spring will over power the opp. corner when it is a lower rate..except most late models or modifieds like ellis or harris have fine thread weight jacks in front and rears are usually coarse thread.. any time you crank a turn in the right front it will lower the ride on the left rear..
AARON YOUNG is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service