Shop Press

Shop Press is the news and idea hub for everything related to working on cars and trucks, focusing on repair, technology, and wrenching lifestyle.

From the creative minds at:

FEATURE STORY

Hot Off the Press

Before selling a vehicle, make sure to remove personal data (VIDEO)

Description Smartphones, laptops and computers are normally cleared of all data before selling or discarding to protect personal information. Modern vehicles store all kind of information in their infotainment systems and that means they should be treated with the...

Dust Cap Tool Explained (VIDEO)

Description How many times have you seen a hub dust cap with ugly dents from a sloppy installation? A dust cap tool is handy for installations on customer vehicles. It helps to prevent damage while securely driving the cap into place.

Why a magnetic drain plug is a worthwhile upgrade (VIDEO)

Description Do your customers know the benefits of magnetic oil drain plugs? Swap out their standard drain plugs to help protect against unnecessary engine damage. Magnetic drain plugs are especially helpful for vehicles with long oil change intervals, as well as many...

Brake booster valve – ASE practice questions (VIDEO)

Description A customer states the brake pedal falls slightly when the brakes are applied while starting the engine. Technician A says that a faulty brake booster check valve may be to blame. Technician B says this can be caused by a leaking brake booster diaphragm....

The final days (and cars) of AMC

In the last days of AMC, two employees brought a video camera into the Kenosha, Wisconsin plant to document the end of an era. Billy and Danny take a thorough tour of the old AMC buildings and production line, which was producing its last L-body Plymouth Horizons and...

What is a core charge?

The article title is a question I asked when I was a young counterman, and most of you oldtimer mechanics and parts people of course know the story: the core charge is a way to be sure the smoked part makes its way back to the parts counter. A core charge is a deposit...

How do you inspect a serpentine belt for wear?

Performing a visual inspection of a car part is usually the first step in assessing its condition. In the case of the serpentine belt, any sign of physical damage to the belt means the belt should be replaced, and may indicate the need to more closely inspect the...

Does your shop handle performance work?

by | Oct 25, 2022

If you turn wrenches for a living, odds are good you’ve either hopped up your own ride at some point or had someone ask you to hotrod theirs. (Or maybe you’ve done it virtually.) The work is often fun and rewarding on a Saturday afternoon. But in the shop? There are a few things to think about to make performance work of any type profitable for you and satisfying for your customers.

Who is planning the work?

Aftermarket performance parts can cover a lot of use cases. It is totally possible to spend a bundle of money and buy a package of parts that makes a car worse to drive. It is just as possible to have a very modest budget and use thoughtfully chosen parts and get outsized returns. (Here’s a beautiful example of that in action.)

Engine in engine bay on hotrod

“Make it loud and shiny.” Photo by Mike Apice.

Performance goals need to be discussed. “A little more bottom end grunt” costs a lot less than “I want to break into the single-digit club.” Choosing the parts and discussing options takes time. Customers should, in my opinion, expect to pay for that consultation.

Now on the upside, some folks are happy to pay up and take your recommendations. (It’s also OK to not know what parts will yield desired results and say as much, and let the customer do their own researching, but I might say if you aren’t comfortable making recommendations, you might not be the best shop to perform the work.) There are plenty of packages from aftermarket companies for specified vehicles that will deliver an advertised level of performance, and those can work in your favor and free you from lengthy performance conversations.

How much does the work cost?

Installs on aftermarket equipment can differ from regular book times. Sometimes the work is straightforward and you can use the labor guide, but not always. In those scenarios, it might make sense to let your customers know you revert to straight time. Customers should be aware that fabrication and non-standard automotive work can require more time than more conventional work, and that time may not be easily quoted upfront as it is with a more pedestrian repair.

An engine sits in the bay of a muscle car.

If your customer has to ask how much it costs or what the warranty is, they probably aren’t going to love the answers. Photo by Mike Apice.

What is the warranty?

Performance parts often encourage an enthusiastic driver to hammer the car even harder, and as any hot-rodder can tell you, any rig is only as good as the weakest part. Most aftermarket performance goodies don’t have a warranty for good reason. Happily, most people looking for a little more giddy-up know and expect this. In my estimation, except for cases of gross installation errors, you probably don’t need to offer a warranty on parts or labor.

Is this too risky?

Performance work can put you and your shop in peril of running afoul of emissions or other laws. Pulling cats or defeating emissions controls isn’t the wink-wink, nudge-nudge affair it was years ago. Even if the vehicle owner is the one doing things like this, it wouldn’t surprise me in the future if shops become responsible for reporting missing equipment. Think of how it looks if you’re plumbing up a couple Flowmasters or Cherry Bombs on a vehicle where the owner clamped in straight pipe where the catalytic converter used to be.

Also, do you know what you don’t know? Are you familiar with the quality of the parts? Are you able to absorb the cost of accidental damage to a vehicle with a value that may be higher than the average commuter car? This isn’t meant to scare you off the work, but just cause you to assess the situation fully. Tread carefully!

An engine under the hood of a modern car

Modifying vehicles that are exempt from emissions laws (or predated them) is a vastly different kettle of fish from working on modern vehicles that are subject to restrictions. Photo by Mike Apice.

What’s the scope?

Installing bolt-in cat-back exhaust systems or wheel-and-tire packages is straightforward. It’s often great money on cars that are clean and easy to work on. Installs like this are a good way to make a customer happy. However, something a bit more nuanced, like porting a set of cylinder heads or tuning a fresh build can go sideways if things don’t go exactly right and you don’t hit your target of XYZ horsepower figure or if there are a lot of cooks in the kitchen.

Many customers can’t or won’t comprehend that playing general contractor and hiring many people to do many things is often a fool’s errand. And unfortunately, some shops fail to realize it, too. Make sure customers know what to expect and limit their expectations if you’re not the only wrench on the job.

Where is this car going to live?

Often, these projects move to the back of the line because of poor parts availability and better-paying “normal” jobs coming into the shop. Can you afford to tie up a bay (or worse, a lift and a bay)? Do you have extra room for parts and a car in some state of disassembly? Can you afford the time and space an “incompatible parts” situation can yield?

Three deuces sit atop a SBC.

Tuning three deuces might be right in the fat part of your shop’s bat, so to speak. Or perhaps this would be a nightmare. It makes sense to know if tuning is something you can take on before someone asks. Photo by Mike Apice.

Does the car need to be tuned?

With light bolt-on power-adders, “canned” tunes from popular speed part manufacturers are adequate. Similarly, older vehicles with gross adjustments of carburetor and ignition can be tuned pretty well with some road time. But after more serious modifications, or on modern performance platforms like an LS or a turbocharged fuel-injected lump, tuning the car to extract maximum power will likely be a necessity for your customer. Have a plan to farm that work out if an engine/wheel dyno isn’t a tool you own.

Conclusion

If your shop is a standard repair facility working primarily on daily drivers, really heavy performance work should probably be left to a shop specializing in it. That said, some lower-risk, lower-reward performance installations can be a good way to capitalize on customer preference and build a relationship with your shop’s patrons that moves service from “necessary expenditure” into “discretionary purchase.” Though there are some pitfalls, I’ve generally been pretty pleased with this type of work and the people who pay to have it performed, so long as they have reasonable expectations that we arrive at together.

Have you had success or failure with this type of work at your shop? Let us know about it in the comments section below!

The articles and other content contained on this site may contain links to third party websites. By clicking them, you consent to Dorman’s Website Use Agreement.

Related Articles

Shop Press Comment Policy

Participation in this forum is subject to Dorman’s Website Terms & Conditions. Please read our Comment Policy before commenting.

Subscribe
Notify of
guest
1 Comment
Newest
Oldest Most Voted
Inline feedback
View all comments

Get Articles In Your Inbox

Subscribe to receive a monthly email summary of our latest Shop Press stories.

Shop Press

I agree to the above privacy statement and T&Cs

Thanks! You're now subscribed.