Ladder Bar preload

Old 06-04-2009, 01:19 PM
  #1  
CamBirdRacing
Senior Member
DYNO OPERATOR
Thread Starter
 
Join Date: Feb 2009
Posts: 510
Default Ladder Bar preload

If I have to much preload in my right ladder bar, will it drive my car to the left?
CamBirdRacing is offline  
Old 06-04-2009, 01:22 PM
  #2  
itsabird
Senior Member
RACING JUNKIE
 
Join Date: Dec 2007
Location: ohio
Posts: 816
Default

yep.
itsabird is offline  
Old 06-04-2009, 02:20 PM
  #3  
BillyShope
Member
CRAFTSMAN
 
Join Date: Jul 2007
Location: Orlando
Posts: 58
Default

Yep, again. But, to expand on that, the car can also veer to the left when you don't have enough preload.

Yeah, that's confusing, but, if you have little or no right rear preload, the left front can pop up in the air on launch, causing transient loading of the right rear and a veering to the left. Some racers will even preload the left rear to eliminate this effect. The result is that they have a car which does, indeed, launch straight, but they're paying for it in decreased performance as that transient loading disappears and the driveshaft torque unloads the right rear.

The best answer, of course, is to have a car which retains equal rear tire loading both before and during the launch. My site has some suggestions on how this can be achieved.
http://www.racetec.cc/shope
BillyShope is offline  
Old 06-05-2009, 03:09 AM
  #4  
CamBirdRacing
Senior Member
DYNO OPERATOR
Thread Starter
 
Join Date: Feb 2009
Posts: 510
Default

I was kind of in a hurry to get it done and had no testing before the last race. I might have put an extra flat into it. I am using the CE ladder link bars. I doesn't pull hard to the left, just kind of drives that way. Not hard to straighten out. Thanks for the replies.
CamBirdRacing is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -