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Old 02-01-2012, 06:28 AM   #1
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I've been told that leaf springs limit performance on the strip. What are the "cons" of leaf springs on the drag strip? I thought that traction bars eliminated axle wrap and resulting wheel hop. What are the alternatives?

I have seen this info and it makes sense. However, I am not smart enough to apply it.
http://www.wallaceracing.com/leafspringtraction.htm

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Old 02-01-2012, 06:28 AM   #2
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I've been told that leaf springs limit performance on the strip. What are the "cons" of leaf springs on the drag strip? I thought that traction bars eliminated axle wrap and resulting wheel hop. What are the alternatives?

I have seen this info and it makes sense. However, I am not smart enough to apply it.
http://www.wallaceracing.com/leafspringtraction.htm
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Old 02-01-2012, 06:34 AM   #3
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Traction bars help limit leaf spring wrap-up. There are two types for our trucks, the Lakewood style slapper bars and the Caltrac link style. I have the Lakewoods and they do help a lot, but I wasn't happy with the way they felt on the highway. I have a set of Caltracs but haven't put them on yet. I need to get that done before racing season starts.

The later Rams with coil springs have a better rear suspension.
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Old 02-01-2012, 06:39 AM   #4
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THX Dave,

I have "Moes" traction bars but I am being told that leaf springs limit what I can get to the ground. The link in the above post does make sense but, is that THE answer that will overcome any negatives resulting from having leaf springs?
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Old 02-01-2012, 06:47 AM   #5
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The suspension bushings have an effect as well.
Quote:
Whether you're running leaf or coil springs, deflection is your enemy. In order for your suspension to work to its potential, urethane bushings are a must in the rear suspension. Energy Suspensions and PST (Performance Suspension Technology) both offer this type of bushing, or check out Global West’s Del-A-Lum bushings that greatly minimize deflection. Just remember: The more you eliminate deflection, the more accurately your suspension will work.
http://www.chevyhiperformance....ion_times/index.html
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Old 02-01-2012, 07:12 AM   #6
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A little reading on the subject.

http://www.carcraft.com/techar...raction/viewall.html

http://www.hotrodsandhemis.com/Traction.html

http://www.hotrod.com/techarti...t_strip_suspensions/
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Old 02-09-2012, 05:11 AM   #7
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IMO we could have it a lot worst. Our trucks have a frame which helps a lot with twist. Our springs are relatively long and suffer axle wrap but that can be control nicely with Caltrac system and takes very little effort to dial in. I've been using Caltracs for a couple of years on the street with no ill side effects. I use spray lubricate on the joints. Removing the sway bar is said to work well on our trucks. The rear spring load can be adjusted with different lenght shackles if needed. 50/50 rear and 90/10 shocks transfer wieght well. I use Timbren/Aeon bump stops to control the rear axle movement along with the caltracs and a DTT for traction. I air down my tires and feel that I have very consistant traction that I can further adjust as I need to. I think our trucks do us pretty well. I still plan to move my battery to the rear but generally I just keep track of what I add or remove but not overly driven toward optimizing wieght. Some of the old school tricks also included using the weaker six cylinder front springs for added transfer and strapping the right rear axle to reduce lift. Using proper tires and a driving style that promotes traction rather then spining tires and I feel our old trucks do us proud. And then if all else fails load up the ballast box until she sticks. Good luck..
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