Weight Placement

njk53 · 02-20-2009, 08:29 PM

If you have to add weight to a race car, where is the best place to mount it. I get conflicting opinions. I have heard over the axle is the best place, I've heard that closest to the rear bumper, and I heard another opinion to put it on the right side over the axle. Which is the right way to do it?

Also is there any publications that deal with stock/super stock chassis set up? Thanks.

Joe DeMarzo · 02-20-2009, 10:21 PM

Coil or leaf spring???

njk53 · 02-21-2009, 11:52 AM

Car is a 71 Chevelle Wagon with coil springs.

Philip Saran · 02-21-2009, 02:00 PM

For a stocker you can mount a weight box (max 100 lbs loaded)
over the right rear corner, must be bolted to frame with 1/2" bolts.

Any other added weight must be bolted or welded in place.

Tom Goldman · 02-21-2009, 02:37 PM

The right rear corner is always the best place to start with permanent weight...... ..I always put the removable weight closest to the rear axle in the middle of the trunk, and use it only to correct for the scales . .....This way it does not significantly upset the corner weights or the chassis reaction ....Permantly mounted weight can have a significant effect on the chassis reaction and vehicle reaction times . .....Too far back and too high on an otherwise good hooking car ,can really pick up the reaction times and turn a good car into a pain in the butt to find a spot on the tree. ...[see my avatar!]
........Tom

mannymen · 02-21-2009, 08:04 PM

Call Gary Wisecarver or Mike P MPR for the correct weight placement. Besides the right rear and above the axle try the passenger location (underneath the car) and in front of the right rear tire if you can.

Joe DeMarzo · 02-21-2009, 09:28 PM

I agree with Tom, well said. Leaf springs seperate the rear to push down on the rear hosuing and coil springs squat to push down of the rear. Over the rear housing for leaf sping and in front of the coil spring to benefit from the weight pushing down on the coil springs.

02-20-2009, 08:29 PM	#1
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Weight Placement If you have to add weight to a race car, where is the best place to mount it. I get conflicting opinions. I have heard over the axle is the best place, I've heard that closest to the rear bumper, and I heard another opinion to put it on the right side over the axle. Which is the right way to do it? Also is there any publications that deal with stock/super stock chassis set up? Thanks. __________________ Nelson Kowal Stock 345

02-20-2009, 10:21 PM	#2
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Weight Placement Coil or leaf spring??? __________________ Joe DeMarzo 1317 STK

02-21-2009, 11:52 AM	#3
njk53 Senior Member Join Date: Jul 2007 Location: East China, MI Posts: 504 Likes: 0 Liked 0 Times in 0 Posts	Re: Weight Placement Car is a 71 Chevelle Wagon with coil springs. __________________ Nelson Kowal Stock 345

02-21-2009, 02:00 PM	#4
Philip Saran Senior Member Join Date: Oct 2006 Location: Parker, CO. Posts: 728 Likes: 165 Liked 14 Times in 11 Posts	Re: Weight Placement For a stocker you can mount a weight box (max 100 lbs loaded) over the right rear corner, must be bolted to frame with 1/2" bolts. Any other added weight must be bolted or welded in place. __________________ Phil Saran Parker, Colorado

02-21-2009, 02:37 PM	#5
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,477 Likes: 892 Liked 883 Times in 237 Posts	Re: Weight Placement The right rear corner is always the best place to start with permanent weight...... ..I always put the removable weight closest to the rear axle in the middle of the trunk, and use it only to correct for the scales . .....This way it does not significantly upset the corner weights or the chassis reaction ....Permantly mounted weight can have a significant effect on the chassis reaction and vehicle reaction times . .....Too far back and too high on an otherwise good hooking car ,can really pick up the reaction times and turn a good car into a pain in the butt to find a spot on the tree. ...[see my avatar!] ........Tom __________________ Tom Goldman 1500 SG , 1506 STK

02-21-2009, 08:04 PM	#6
mannymen Senior Member Join Date: Apr 2003 Posts: 728 Likes: 5 Liked 13 Times in 7 Posts	Re: Weight Placement Call Gary Wisecarver or Mike P MPR for the correct weight placement. Besides the right rear and above the axle try the passenger location (underneath the car) and in front of the right rear tire if you can. __________________ N/A

02-21-2009, 09:28 PM	#7
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Weight Placement I agree with Tom, well said. Leaf springs seperate the rear to push down on the rear hosuing and coil springs squat to push down of the rear. Over the rear housing for leaf sping and in front of the coil spring to benefit from the weight pushing down on the coil springs. __________________ Joe DeMarzo 1317 STK