Burnouts 101: Heat Your Tires Without Beating Your Parts
(More articles on the Tech, Tests & Installs page HERE)

Burnouts. We love doing them, but do we know how to do them properly? In a recent issue of National Dragster, David Reher had a great column entitled "Are Burnouts Abusing Your Engine?" I thought his article was so important that I referenced it here earlier this year as a must-read.

On a separate occasion, I had a conversation at The PRI Show with Milodon about a new oil pump they came out with because racers were breaking regular oil pumps on the burnout due to excessive shake.

I’ve long suspected that racers way over-do it on the burnout, but seeing David Reher’s article in National Dragster and my conversation at PRI gave me an idea for a more inclusive article about how excessive and/or improper burnout technique can be killing parts.

When I started racing the Dodge in 1995 it was a small-tire car with a leaf-spring suspension, and it needed a long burnout. That became a habit which remained even after upgrading to a ladder-bar suspension and much bigger tires, changes that would make it work better without needing such long, overkill burnouts. But like they say, old habits die hard, but I was about to change mine.

The first part of my burnout epiphany came one night in 2003 at Island Dragway, when my line-locks failed on my burnout during 1st Round. The tires barely spun; the Dodge lurched forward with hardly any smoke. I thought I was dead; as I approached the starting line I kept thinking that I was going to spin, that I’ll never run the number, and to be ready to keep my foot in it at the stripe. Instead, the Dodge dead-hooked and went quicker and faster.

Carl Robinson, Motorsports Manager/Race Wheel Product Manager for Mickey Thompson Performance Tires & Wheels states, “In general, and in specific to the M/T products, a minimal burnout is required to maximize performance. To be more specific, the elapsed time of the burnout while being minimal must be appropriate to the conditions. The hotter the track temp, the shorter the burnout. Excessive burnout will cause a melting of the tread compound at the shoulders, increase the potential for "slip" and decrease tire life.

So racers, you probably don’t need to kill your tires on the burnout. Try keeping it short and sweet. This will result in longer tire life, and potentially lower staging temps as well. Those of you who know me know that I easily get 350 passes out of a set of Mickey Thompson 31 x 10.5Ws, because I'm not killing them on the burnout.

The second part of my "burnout awakening" came a few years ago when I was racing the Dodge regularly in Super Pro, where most of my opponents were dragsters.

I realized that dragsters don’t use line-locks for their burnouts; they roll through the water and just stab the throttle in high gear to get the rears spinning. The car doesn’t sit there stationary; it moves forward immediately and the driver is out of the throttle pretty quickly.

When I realized this, I questioned my own burnout technique and decided to try it the dragster way. No line-lock, no shifting the transmission during the burnout, just rolling through the water, stopping the car, then stabbing the gas in high gear to get the tires spinning and feathering off the throttle to keep the RPMs down. It worked great and I’ve been doing it this way ever since.

Watch the video to see what I'm talking about; look at how quickly I'm in and out of the burnout:

This is pretty much the way transmission and converter companies suggest doing burnouts. According to JC Beattie Jr. of ATI Performance Products, “Start out your burnout in the highest gear that you are able to spin the tires easily and not create too much extra heat in your converter. With our Challenger that is 2nd to 3rd gear. Why make an extra shift if it’s not needed? Driving out of the burnout is important for all of your driveline. The chirp is bad but sometimes hard to avoid especially on well prepped tracks. Driving out will help with that."

This same general idea is stated in the instruction sheet that ATI supplies with their converters:

1) Spin tires slowly in water to get them wet while avoiding soaking the wheel wells.

2) Pull to the front edge of the water using Low to High for Powerglide, Low to 2nd to High for Turbo 400, Ford C-4 and C-6, and 2nd to High only for Torqueflite and Turbo 350. For high performance vehicles, do high gear burn-outs only to save 1 to 2 shifts per burnout.

3) When the tires are hot enough, release the line lock and power the car out of the water 5 to 10 feet and lift. Avoid hook-up that will scuff the tires.

4) Stage immediately! Dry burn outs reduce traction and consistency. If you don’t believe this, pay attention to your first dry leave behind the line. It will hook solid every time. Small amounts of water left on the tires will dry completely from the tire heat long before the green comes on.

I realize that not all race cars are the same and some do need a longer burnout than others, but what if you want to try this style of burnout? How do you incorporate these changes into your routine? Take the advice of Mickey Thompson’s Carl Robinson: “Take a common sense approach. Every race vehicle is unique. Experiment when it doesn't count – "test and tune" nights were designed for it. Once you learn what the vehicle requires, operate on the minimal side. The ultimate goal is to correlate both the "operating range" of the tire and the "tire inflation range" with the ambient conditions.

Sources:
ATI Performance Products,
www.atiracing.com.
Mickey Thompson Performance Tires & Wheels,
www.mickeythompsontires.com


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