Ask Away with Jeff Smith: How to do a Performance Front End Alignment

We have but a single Ask Away tech column this month. We blame an overindulgence of turkey, stuffing, and football on the part of Mr. Smith.

Anyhow, our lone tech question is actually a very good one. G.W. asks:

"I have a ‘61 Comet wagon with Mustang II type front suspension with rack and pinion steering that has replaced the stock OE shock tower suspension and steering box. The car is primarily for street use but it will also see occasional drag strip use. My question lies in the front end alignment specs. Should we align to stock ‘61 Comet alignment specs or would other settings be more desirable? I know that some drag racers like extra caster for top end stability as well as a little negative camber."

Jeff says that alignment is just part of the equation. A total package of good tires, suspension parts, and a quality alignment are what add up to a balanced package for the street. 

As for the alignment specs G.W. asked about, the factory Mustang II alignment recommendations are not ideal for improved handling or high-speed stability. Jeff further explains the concept of bump steer and how it affects handling, and cautions that fixating on getting zero bumpsteer is not necessary for a street-driven car. If the car handles well and doesn't try to rip the steering wheel out of your hands when you hit a bump, then the amount of bumpsteer is acceptable.

Finally, Jeff provides some starting points for setting a more performance-oriented front end alignment, and recommends finding a shop that is knows how to do one. Some alignment shops won't touch a car unless they can align it to stock specifications.

Read all about it at our OnAllCylinders blog.