Racing Rules! Racing Engine Rule Issues For 2015 -

Racing Rules! Racing Engine Rule Issues For 2015

If you’re looking to become a performance engine builder with customers driving in various racing associations, keeping up with rules changes from the numerous organizations can be a challenge.


If you’re looking to become a performance engine builder with customers driving in various racing associations, keeping up with rules changes from the numerous organizations can be a challenge.

Josh Tennis, head technician at GPM Race Engines in Eagle Rock, MO, said speaking from his experience, it’s up to the shop to investigate engine-related rule updates.

“We haven’t seen communication between customers, sanctioning bodies and engine builders to be very good, unless you have an exceptional communicator for a customer or you as the engine builder do all the leg work,” Tennis said.

And that can be tricky, especially if you are working at a shop like GPM, which builds engines for just about anything under the checkered flag.

“We build engines for local bracket racing, circle track (late- model, modified, factory stock, mini stock, etc.), pulling trucks, and even single cylinder go-cart circle track,” Tennis said, noting that no customers have mentioned any changes in rules.

For some racing associations with numerous classes, issuing updates to all engine builders and race teams is unlikely. However, technology from the Internet has helped.

Chris Blum with the Sports Car Club of America, recommends racers and engine builders refer often to the association’s website – – for the latest rules and news updates.

“As far as SCCA Club Racing goes, there have not been any big changes to the engine prep rules, but the rule books are updated on a Septemberly basis,” he said.

Blum said the SCCA oversees 26 different classes, ranging from stock engines to highly built engines, and all have their own specific set of rules they must follow.


Unwritten Rules

And though it’s uncommon for racing associations to send notices to the engine builders on upcoming rule changes, each year, something somewhere is bound to get an update. However, some feel those little changes can, at times, end up creating more issues down the road.

“Unfortunately, most rules are not written by a committee of knowledgeable people familiar with all aspects of what the rules cover,” Tennis explained. “In the interest of ‘keeping costs down,’ innovation is stifled, and it actually makes costs go up when special parts have to be developed to be rules compliant, giving racers willing to spend the money an advantage. And you can’t blame the developers for making the parts; that is simple economics.”

There are some in the racing community that feel while the sanctioning bodies seem to want to keep everything fair, there needs to be more effort by the association to make the rules simple, easy to enforce and cost-effective to follow and leave no avenue for enterprising individuals to circumvent them.

Tennis offered suggestions to make racing rulebooks simpler, easier to follow and cheaper for the racer and the track.

  • Making stock rocker arms or stock replacement required. This will keep spring pressures down, in turn camshaft events less radical, as well as reduced rpm. Therefore, the rotating assembly can be of less expensive components.
  • Mandating hard tires of narrower width. With the harder compound and the narrower width, traction is limited so car setup and driver skill plays a bigger role than all out horsepower. This can be more cost-effective for the racer in both engine and tires.
  • Having a lottery where all competitors racing for a championship willfully subject their vehicle to a thorough tech inspection at least once during the season, with at least three officials conducting the inspection. Ideally, officials could comb over one or two cars at every event with the aim to inspect 80% of competing cars during the season.


Cost Concerns

Over the years, racer concerns with engine rules and increasing costs have driven more and more racing environments to consider spec or crate engine classes, but that doesn’t mean that these engines are any different from the problems listed above.

“The highly controlled environment of a crate or spec class seems attractive since tech will be so much easier, but that doesn’t seem to be the case,” Tennis said. “If anything, they can be far worse for the racer’s bottom line and lots more trouble for the track. Fraudulent seal bolts hiding illegal engines, spec engines with inflated component costs or even racers purchasing multiple crate engines in order to find the best one of the bunch,” he said.

However, many racing organizations realize that in order to keep and grow racers, they need to address this affordability factor for current and new teams.

United States Racing Association (USRA), based in Webster City, IA, acknowledged that with change comes cost and it wants to make as few changes as possible.

According to USRA, there are some grey areas that still need to be covered. The association recommends drivers and crewmembers read the current year’s rules.

Some recent changes include, in the Modified division, USRA added in a concept engine that will get a 50# weight break. In the USRA Stock Car division, a new Holley Ultra HP carburetor will be allowed to compete with the updated the rules.

Rules for these and other components are on the USRA website at

The International Motor Contest Association (IMCA), organized in 1915, the oldest active automobile racing sanctioning body in the U.S., says its mission is to provide affordable, entertaining and competitive auto racing as a sanctioning body.

IMCA entered into an agreement with RaceSaver to develop a national rules system and help promote the group’s sprint class division. Through the agreement, RaceSaver founder French Grimes allows IMCA long-term use of RaceSaver rules for its weekly, regional series and special events.

IMCA, in return, provides administration, support and promotion of new sanctions for the sprint car class that will be known as RaceSaver, a division of IMCA.

According to IMCA, all aspects of RaceSaver pertaining to rules, record keeping, cylinder heads, engine cert hard cards, engine sealing and tech officials will remain unchanged and under control of Grimes.

IMCA vice president of operations Brett Root also addressed rules updates for 2015, noting they were mostly clarifications to the rules from 2014.

For instance, a fuel shut-off is now recommended for the Modifieds, Stocks, Hobbies and SportMods, and one Edelbrock aluminum intake option, part no. 2176, will be legal for use with the Chrysler option in the Stocks, Hobbies and SportMods.

Also, Hobby Stocks can’t use surge tanks or cooling lines, and cap screw connecting rods will now be allowed for use by Southern SportMod drivers competing with the claim engine option.

For more on the partnership and IMCA, visit


Building Relations

Tennis said while everything isn’t all doom and gloom, many racers will choose to run an open engine over a crate strictly out of principle. And, some sanctioning bodies are now realizing that the crates need to have tech emphasis as well, due to widely publicized cheating.

“All of these factors just means that our duty as engine builders is that much more important,” Tennis said. “The engine builder needs to make sure that they are capitalizing on everything that they can.”

In a historic, proactive vote at its 2014 annual meeting, the track operators of the WISSOTA Promoters Association – – voted to allow new engine options for its racers to provide them with lower-cost options in 2015. In a cooperative effort with the region’s engine builders, the track promoters – who make all race car rules in WISSOTA – installed new rules that allow specific “WISSOTA Concept Engines” to be used by competitors in nearly all V8 engine divisions in 2015 (not Super Stocks).

In a letter signed by the owners of 27 engine shops within the region, the builders said, “A variety of WISSOTA country engine shops volunteered to finance, assemble and test locally built concept engines to show you as promoters, and your racers, that we can produce a lower-cost yet still very reliable racing engine that will compete with those currently allowed in WISSOTA’s rules.”

According to WISSOTA’s promoters, the engine builders group provided a variety of convincing reasons for installing the new engine rules, including:

  • Local builders provide better service for the racers.
  • Locally built engines can be quickly repaired and put back into cars to keep them in action at your tracks; crate engines cannot.
  • Locally built engines can be freshened each off-season rather than being discarded for a new one, which is common for crate engines.
  • Local builders can produce these lower cost engines.
  • Local builders explained they support many of WISSOTA racers and many of its tracks through sponsorships.

Racers may also choose to continue running their existing engines, which will be completely acceptable under the rules as they have been in the past. “That’s part of the beauty of this program,” said builder Kevin Schuelke of Sturdy Engines. “No one has to make any change at all if they like their current engine and their current builder. But, if someone is interested in making a change, or if someone new is coming into the sport, there are now lower cost, locally built engines for them.”

Information on these engines can be found on the WISSOTA website.

“We believe the local builders are a vital part of our racing community and we want to see them succeed and continue to be a valuable resource for our racers,” said Terry Voeltz, WISSOTA’s executive director.

Clearly there’s a need for communication with a customer you’re rebuilding a racing engine for. Checking he appropriate racing association’s website for rules and rule changes will be a great place to start.

You May Also Like

Ball Joint Inspection

It’s important to remember not to miss a worn joint. If a ball joint fails, the driver loses control of the vehicle.

Don’t miss a worn joint!

Detecting and measuring wear in a ball joint is critical to ensuring the safety of a vehicle. 

Types of Ball Joints

A ball joint is made up of a housing, ball stud, bearings, end cover and Belleville washer or spring. A Belleville washer is a conical-shaped spring designed to be loaded in the axial direction. The joint is attached to a control arm by pressing or riveting the joint into the arm. If the joint is pressed into the arm, it will require a special tool to remove the old joint and install the new one. 

Ignition System Do’s and Don’ts

Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.

BMW N54 Cooling System Problems

Let’s take a closer look at this water pump, how to replace it efficiently and what other components should be replaced along with it.

BMW Dual Clutch Transmissions

BMW uses a wet clutch with separate inboard and outboard sections for the two sub-transmissions.

Brake Pad Edge Codes – What Can They Tell You?

The “Edge Code” can tell you information about a brake pad’s friction material.

Other Posts

A Closer Look At Key Programming

When it comes to key programming, there are different levels of security access depending on the year, make and model of the vehicle.

Steering Angle Sensor Service

Ninety percent of the time when a steering angle sensor code is active, it means the sensor needs to be calibrated.

Belt Service For Hybrid and Stop/Start Systems

Knowing how to “force start” a hybrid vehicle can be helpful if you are trying to diagnose a noise problem that involves the accessory belt drive system.

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.