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-   -   Effects of weight removal (https://classracer.com/classforum/showthread.php?t=29537)

Jeff Lee 11-09-2010 02:30 PM
Re: Effects of weight removal
 
Quote:
Originally Posted by Adger Smith (Post 221035)
Jeff,
I think one of the reasons my car doesn't like the wheelie bars is the extra 15 lbs of unsprung weight they hang out on the rearend. That has to cause unwanted issues with shock and spring control. I proved my point by raising the bars and not even letting them touch the ground.I can see your improvement with the less spring weight.
Wade,
Good idea about extra springs.
One of the reasons I had those AJE bars on the car. Very light. But now illegal.

Dick Butler 11-09-2010 03:12 PM
Re: Effects of weight removal
 
Guys, Softer rear springs dont just lower the rear end they allow more travel on separation depending on Shock adjustments. Same with front. More compression at rest more length and push on leaving.
60 ft with 52front 48 rear can work by 4 link length and angle adjustments too. Try the lay out of the bars and use that as a map to work through the positions and record what the car likes....You can have TOO much down force which slows also.

Alan Warman 11-10-2010 11:08 PM
Re: Effects of weight removal
 
I would like to think everyone for all the info, I will put it to good use. Also another problem I am having is to much anti squat, mine is at 142%. Would the car work better if I lower it to 100 or 120%. The car is a 85Olds G-Body with a 307 Olds motor no HP or TQ.

Mark Yacavone 11-11-2010 12:12 AM
Re: Effects of weight removal
 
Quote:
Originally Posted by Alan Warman (Post 220679)
Well, the season is over and time to make some changes to the car. I run J/SA and my minimum weight is 3170 lbs, but my car weighs 3225 lbs with me in it and no ballast. The weight distribution is 57% front and 43% back, not that good but it could be worst. The good news is that I can remove 105 lbs off the car with 85 lbs coming off forward of the front spindles. The bad news is that it will cost about $1500 dollars or $15.00 dollars a pound. What I would like to know is, will you see any improvement in your sixty foot or ET by changing the weight distribution. Lets say going to 54% front and 46% rear.
Question, Alan
Looks like those cars will make K or L. Why not go there, if you're worried about not enough weight on the rear axle?


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