100lb rule of thumb
 

Is the old "rule of thumb" of 100lbs to a .1 still close. I have used the "Wallace Racing" type of calculators, but was looking for someone with actual testing. I know there are many variables, but so were there years ago. My application is approximately 3400# low hp auto SS. Looking at moving up class by comparing weight for class and difference in indexes.

Ed

Re: 100lb rule of thumb
 

You need to try it. My car will pick .010 for removing 125 #. 3170 to 3045.

Re: 100lb rule of thumb
 

The Wallace Racing formula is dead on for my car. 100# = .1 seconds I way off.

Jim Caughlin
SS 6019

Re: 100lb rule of thumb
 

My car is .0019 for each pound. Not kidding.

Re: 100lb rule of thumb
 

My 12 second car picks up .30 with a 225LBS removal. My BBC S/G car picked up .08 with a 100LBS removal.
Your mileage may vary...............

Re: 100lb rule of thumb
 

Depends if this weight is rotating weight, or dead weight on the body.

Re: 100lb rule of thumb
 

130 lbs = .012 and 1 mph in a 3rd generation camaro

Re: 100lb rule of thumb
 

Thanks everyone for your responses....

Re: 100lb rule of thumb
 

According to T-Ped on last night's broadcast from Pomona, every 10 lbs is worth a tenth!! If I could quit eating Taco Bell, I'd be 1.20 under in no time.

Re: 100lb rule of thumb
 

That was close for my old Jr Stocker. Depends on HP levels. I think Tony should do some research, instead of quoting 40 year beliefs. My car, 100 = 6 hundredths, in decent air, seven in like 4000' + DA. 50lbs is a pretty consistant 3 hundredths any time..