Hoping to see a quarter of a mile in 6 seconds, Raul Lopez Jr. and his father run Infinite Performance Racing and recently built a twin-turbocharged Gen III 5.0L Coyote engine for the 1992 Foxbody Mustang hatchback. Go and see for yourself!

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Raul Lopez Sr. entered the industry and worked in engines in the 1990s. At that time, he would spend time with a friend who had an engine shop called Infinite Performance. Unfortunately, the friend passed away not long ago, but the old Raul became obsessed with the engine manufacturing business and decided to continue where his friend left.

In 2003, he opened Infinite Performance Racing in a new store space, keeping the same store name in memory of his friend. Today, Raul Sr. and his son Raul Lopez Jr. run the store together.

"My father let me enter the field of cars and engines," said Raul Lopez Jr. "My father is an engine manufacturer, and since I graduated from high school, I have worked with him for more than 10 years."

Infinite Performance Racing is located in Miami, Florida and focuses on Coyote, LS and LT engine work, but most of them are geared towards Coyote.

"Most of the work we do is Coyote engines, such as 5.0L, 4.6L Cobras, Terminators and similar things-mod engines," Lopez said.

The shop area is 2,200 square feet. The father and son completed all engine assembly in-house, but used MPR racing engines for machine work to ensure that everything was in line with expectations.

"We do a lot of street cars and some rail cars," he said. "We also do manufacturing work. We do everything a little bit. We strive to be a one-stop shop."

One of the engines recently completed by the shop was privately built for Raul Jr.'s 1992 Foxbody Mustang Hatchback. This is a Gen III 5.0L Coyote engine with mirrored twin turbo.

"I have a Gen III Coyote engine, which is the engine we are most exposed to right now," he said. "Since the third generation of Mustangs came out, everyone has been fascinated by them. We are now doing a lot of work. Anyone with Gen I or Gen II will return to the dealer to get Gen III."

The 5.0L Coyote in Raul Jr.’s Foxbody was sleeved and machined in MPR and assembled in Infinite Performance Racing. The rotating components of the engine have original cranks, I-beam rods and diamond pistons.

"We used Frankenstein cylinder heads, they were CNC machined and transplanted," Lopez said. "The engine also has a MMR billet ICX intake manifold. It is a water-cooled manifold with 16 injectors. It has stock camshafts from the third generation, but it runs the full Ferrea valve train. ."

For the turbocharger, Lopez said he used Precision twin 76/75mm mirrored turbochargers. The engine uses approximately 35-40 pounds. Supercharged, capable of producing 1,800-2,000 horsepower on M1 alcohol fuel.

"This car is now undergoing final touches," he said. "We are wiring it up, and it will run on FuelTech 600. Once the car and engine are wired correctly, we will start testing."

The '92 Foxbody Mustang has a 25.5 roll cage and runs on Weld wheels with X275 tires. It is set for a 1/4 mile drag racing, equipped with a 3-speed Rosler gearbox, and the engine is tuned by Karel Tuning.

"Our goal is 6 seconds," Lopez said. "We have entered 7s many times."

Hope that Little Lauer achieves his goal!

This week the engine was sponsored by PennGrade Motor Oil, Elring – Das Original and Scat Crankshafts. If you have an engine you want to highlight in this series, please send an email to [email protected] Engine Builder editor Greg Jones

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