5,000 HP Twin-Turbo 526 cid Hemi Engine - Engine Builder Magazine

5,000 HP Twin-Turbo 526 cid Hemi Engine

Nicknamed King of the Jungle II, this Trans Am is a Pro275 drag car built by Cory Clemens of Clemens Motorsports Unlimited LLC. The King of the Jungle features a roaring, 5,000 horsepower, twin-turbo, 526 cid Hemi engine from Brad Anderson Enterprises. Check it out!

Engine of the Week is presented by

There were more than a few cool-looking engine bays at the 2022 Builder’s Brawl this past summer, but none in our opinion topped that of Cory Clemens of Clemens Motorsports Unlimited LLC. His Pro275 drag car, nicknamed King of the Jungle II, is a Trans Am featuring a gray, black, gold and burgundy red paint job, and his engine bay houses a massive, twin-turbo, 526 cubic inch Hemi engine. It stood out, even amongst a crowd of other super-clean, super stout drag cars, so we had to know more about the engine and the builder/driver behind it.

As it turned out, Cory started building this car when he was just 16 years old. His family owns and operates Clemens Motorsports Unlimited LLC out of Osage Beach, MO. The shop has been around for over 30 years, doing everything from running professorial race teams to working on major marketing projects for performance businesses.

“All my life you could find me at the drag strip,” Cory Clemens says. “Whether that was watching my dad race his Pro Mod, to making laps in my high school car, or even helping out on some of the pro teams. I’ve driven everything from Jr. Dragsters to Pro Street cars and even Super Comp dragsters, and I don’t plan on stopping there.”

The 2022 Builder’s Brawl was held at World Wide Technology Raceway

Cory has aspirations of one day driving a Top Fuel dragster. His Pro275 Trans Am is a good stepping stone for sure. The car he had at the Builder’s Brawl was a four-year build.

“We debuted this car at PRI in 2019,” Clemens told us. “It’s a Pro275 car that we built for LDR (Limited Drag Radial), but we ended up getting bumped up. Currently, we’re doing more No Prep and No Time racing and that kind of thing.

“Pretty much anything you see on the car, I did it. It was a four-year project I did in high school. It involved a lot of tin work and bar bending. I learned how to weld and really got good at that. At our shop, I do a lot of roll cages for guys. I do a lot of sheet metal work and just help anywhere I can for customers. We also do some parts sales. I wired, plumbed and welded the car. If it was done, I did it. That’s what I love to do.”

The 526 cid Hemi engine features a billet Brad Anderson Enterprises block and cylinder heads, as well as a Bryant crankshaft, CP connecting rods, an LSM camshaft, Manton pushrods, Manton rockers, a Hogan’s sheet metal intake, custom valve covers, a Peterson oiling system, and twin 88mm Garrett turbos with TiAL wastegates.

“It’s got the best of the best that we could put in it,” Clemens says. “It’s billet everything. We did everything we could do to get an edge.”

Of course, helping the Hemi gain an edge are those sizable Garrett twin turbos, as well as ComSYNC EFI. According to Cory, he usually pumps about 50-lbs. of boost through them and starts a run somewhere in the 7-10-lb. range, depending on the track and application. All of that equates to a billet Hemi capable of making around 4,800-5,000 horsepower.

When Cory runs something like a Duck X Production race, he says the team shoots for a 3.80-4.00 pass. However, his expectations were a little different, he says, with the No Prep stuff.

“Here at Builder’s Brawl, we’re hoping to run 4.50-4.80,” he noted. “That’s what we’re kind of shooting for as our goal for the weekend. We’d be happy with that because this is one of our first No Prep races. If we can get anything under a 5.00 flat we’d be really stoked.”

This Pro275 Trans Am and its twin-turbo Hemi engine are definitely a killer combo, and we look forward to seeing many, many more years of Cory in the driver’s seat. Needless to say, we’re glad we stopped and found out a little bit more about Cory Clemens and his drag car. More photos below…

Engine of the Week is sponsored by PennGrade Motor OilElring – Das Original and Engine & Performance Warehouse Inc./NPW Companies. If you have an engine you’d like to highlight in this series, please email Engine Builder Editor Greg Jones at [email protected].

You May Also Like

Twin-Turbo 6.4L Gen III Hemi Engine

After rebuilding his ‘Lil Red Express truck for the past two years following a collision during the Midwest Drags, Rick Russell got back to drag-and-drive competition at Sick Week 2024. This time, ‘Lil Red Express featured a twin-turbo 6.4L Gen III Hemi engine!

Lil Red Express

Unfortunately, drag racing doesn’t always end in a clean A to B pass. There are many scenarios in which a car doesn’t make it down the track. Sadly, for Rick Russell and his ‘Lil Red Express truck, two years ago during the Summit Midwest Drags at Dragway 42 in West Salem, OH, Rick left the line and immediately had water under the rear tires, causing the truck to make a hard right into the near-side wall, resulting in a completely crumpled front end.

All-Billet K24 2.2L Honda Engine

We’ve known JBR Engines owner Jose Bello for a few years, and well before that, we knew his shop was one of the premier shops in the Honda and import engine scene. During a recent visit, we got to see an all-billet Honda K24 2.2L engine coming together for a customer looking to improve upon his 5.86-second quarter mile time!

872 cid Reher Morrison Pro Mod Nitrous Engine

A car like this 1966 Corvette featuring an 872 cid Reher Morrison Pro Mod nitrous engine is trying to kill itself every minute it’s running. But, a lot of this drag-and-drive racing is about loving the car you’re working on and feeling it’s a cool hot rod. John Ens and Dave Schroeder certainly have a cool hot rod, even if it’s a bit different! Check it out!

540 cid Supercharged Big Block Chevy Engine

Born without arms, Matt Stutzman, aka the Armless Archer, has excelled at competitive archery. Now, he’s turning his focus to another passion – drag racing. Looking to go 200 mph in the 1/8th mile, Matt runs a Top Sportsman drag car with a supercharged big block Chevy engine. Check it out!

Turbocharged Toyota 2JZ Engine

Damon Elff’s Toyota Supra, which features a turbocharged 2JZ engine, will send you backwards as it revs up. This 2JZ is wicked, and we caught up with Damon at Sick Week this year to get the full scoop on the build.

Other Posts

Turbocharged 414 cid L8T Engine in a Honda S2000

As we’ve mentioned in other Sick Week interviews, there aren’t tons of import cars at the annual drag-and-drive event in Florida, so when we see something like RC Flint’s Honda S2000, we take notice. Upon further investigation, RC opted to forgo the 4-cylinder for a 414 cid L8T engine, and we got the full scoop

L8T engine
Wagler CX Billet 6.7L Cummins Engine

The Cummins engine is a powerhouse in the diesel world, but even the mighty Cummins can be improved upon. And who better to do it than Jeremy Wagler and Wagler Competition Products. The shop’s new Wagler CX billet engine is based on the 6.7L, but utilizes some different attributes for big power and performance.

Wagler CX billet Cummins engine
Dodge 2500 with a Turbocharged 6.7L Cummins Engine

Tim Krueger’s current pride and joy is a 2004 Dodge 2500, a truck with a turbocharged and nitrous-boosted 6.7L Cummins engine that has been fine-tuned at Tim’s shop, TK Truck Performance. Check it out!

6.7L Cummins engine
FFRE’s Gen 3 Stage 3 Ford Coyote Engine

If you don’t already know, Fast Forward Race Engines has been making a name for itself in the Ford Coyote engine market. The New Port Richey, FL-based shop does engine and machine work on a few different platforms, but they specialize in the Coyote stuff, and thanks to that speciality, the shop has been a

Ford Coyote engine