3.0 Limited Pro Class 5.9L Cummins - Engine Builder Magazine

3.0 Limited Pro Class 5.9L Cummins

With the dream to one day compete at the same truck and tractor pull events he saw as a kid, Jeremy Wenger of Twisted Piston set out to achieve that goal. The shop went all out on a 3.0 Limited Pro class 5.9L Cummins build. Find out why it earned them Rookie of the Year in OSTPA in 2019.

Diesel of the Week is presented by

As a kid, Jeremy Wenger would attend truck and tractor pulling events and dream to one day be able to compete with a truck all his own. Growing up in a family that owned a construction company, Jeremy was well on his way to accomplishing that dream.

Working in construction, Jeremy quickly got plenty of experience running and fixing heavy-duty equipment. From there, he attended UTI in Phoenix and earned certifications in their diesel program and Cummins program, graduating in 2010. He spent a few years working at a Cummins dealership in Northfield, OH before ultimately beginning the endeavor of starting his own diesel shop, Twisted Piston in 2013, located in Dalton, OH.

Jeremy and his son

“We do anything from three-quarter ton pickup trucks through Class 8 over-the-road trucks,” Wenger says. “We work on the whole thing – bumper to bumper – but we do a lot of engine work and engine building from your stock street rebuilds through performance builds.”

Twisted Piston has eight employees – five techs and three office staff – who help to manage the 4,500-sq.-ft. shop. While Cummins engines are a personal favorite of Jeremy’s, Twisted Piston doesn’t discriminate against any diesel that comes in the doors.

“We do a pretty good mix of all three – Cummins, Powerstroke and Duramax – when it comes to the pickup truck side,” Wenger says.

However, when it finally came time to make his dream of owning a pulling truck a reality, Jeremy of course found a Cummins powerplant to do the job.

“We have a 3.0 Limited Pro diesel pulling truck that’s been all built in-house,” he says. “Our pulling truck was assembled last year, so last season was the first season on that particular motor and chassis configuration. It’s a 5.9L common rail platform. The chassis is a ‘95 Dodge chassis, so those don’t exactly go together. In order to do the common rail, which is an electronic motor, I actually built the engine harness in-house so we could communicate to that computer for that engine and tune it, data log it and make that work in that chassis.”

As with any bucket list item, you try and push in a direction to achieve your goals, and when Jeremy came across the ‘95 Dodge 2500 in New York 7 years ago, he knew he had to have it.

“I picked up this truck with about 250,000 miles on it,” he says. “It was a completely streetable, normal, ‘95 Dodge 2500 with an automatic trans in it and a 12-valve engine. I think I drove it about five miles and then the motor came out of it.

“From there, it was a multi-year process of deciding what direction we were going to go with it. Whether we were going to go all the way to the 3.0 class or build it for a work truck and things just progressed and developed and we took some time to accumulate parts over the years. Eventually, we decided to go the whole way and go to the Limited Pro class.”

To get the build started, Twisted Piston called on Industrial Injection for much of the bottom end and the fuel system for the truck. It has two Industrial Injection 12mm CP3 pumps and their injectors as well. It’s got a Gorilla girdle to keep everything in place in the bottom end. Twisted Piston also used an Industrial Injection cylinder head with upgraded pushrods, heavier valve springs and bigger valves, and a Hamilton camshaft.

“The only thing original on that build is the 5.9L block, which was bored out, and the 5.9L crank is original,” he says. “It’s got Diamond pistons and Carrillo rods. It’s all tuned with EFI Live through that harness that we built in-house and we worked with Starlight Diesel on the tuning side of it.

“For the Limited Pro class, you can run one single turbocharger with a 3.0˝ inlet. That’s the specification for that class. That’s kind of the limiting factor and how they control the power and keep things the same inside of the class.”

To top off the 3.0 class Cummins, Jeremy relied on oil that he’s been using since day one of opening Twisted Piston, and that was AMSOIL.

“This engine has been running AMSOIL ever since it was put together and we’re an authorized AMSOIL dealer and use it religiously on our big builds like that,” Wenger says. “I’ve been using AMSOIL since I started the shop in 2013. We’ve been very happy with their oil.”

Last year, once the 5.9L Cummins was fully assembled, Jeremy went to Pine Hill Auto in Carrollton, OH to run it on their engine dyno and get it tuned and dialed in.

“We made solid horsepower out of it for a 3.0 platform engine,” he says. “We made over 1,400 horsepower.”

In their first year of pulling competition within the Ohio State Tractor Puller Association (OSTPA), Twisted Piston’s 5.9L Cummins and ‘95 Dodge earned them Rookie of the Year in the Limited Pro class for OSTPA. The shop hasn’t put together a final schedule for the 2020 season yet, but Jeremy says they plan to either pull OSTPA again or USA East – or maybe a combination of the two.

Diesel of the Week is sponsored by AMSOIL.

If you have an engine you would like to highlight in this series, please email Engine Builder magazine’s Editor, Greg Jones at [email protected].

You May Also Like

5.9L Stock-Appearing Turbo Cummins Engine

Austin Tate of Tater Built Turbochargers has a drag truck equipped with a stock-appearing turbo that boosts his truck’s 5.9L Cummins engine to some remarkable times. Find out what’s in this diesel engine build.

5.9L Cummins engine

Austin Tate’s passion for diesel engines began when a close friend first introduced him to the 24-valve Cummins. This sparked a switch in interest from the Duramax platform to Cummins, and he quickly traded his way up to a first-gen Cummins. Despite limited resources and money at the time, he managed to extract significant horsepower by turning up the pump, adjusting the timing, and making other small tweaks to the engine.

6.7L Compound-Turbo Cummins Engine

Ross Dunagan and his team at Flyin Diesel Performance recently finished a compound-turbo 6.7L Cummins build that was more than three years in the making. Customer Erik Santana wanted to go all out, so they did, and the result was worth the wait!

6.7L Cummins engine
Twin-Turbocharged 6.6L Duramax Engine

Enrique Gonzalez, owner of The Diesel Shop Inc., has pushed the boundaries of what’s possible with a Duramax engine, earning him recognition in the Duramax world and greater diesel motorsports community. Check out his twin-turbo 6.6L Duramax engine!

Duramax truck
Triple-Turbo 5.9L Super Stock Cummins Engine

Jayden Litman is a 16 year old out to prove she has what it takes to compete with the men of the Super Stock pulling class. Helping her beat the boys is a truck named Somethin to Prove and a triple-turbo 5.9L billet Cummins engine built by Scheid Diesel.

Super Stock Cummins engine
Light Pro Stock 540 cid Small Block John Deere Engine

Maybe it was the level of detailing and polish? Maybe it was the giant turbo? Maybe it was the size and green color? Maybe it was just because this is an awesome Light Pro Stock 540 cid small block John Deere engine, so we stopped to find out more about the build done by VG Motorsports!

Other Posts
AMSOIL 0W-8 100% Synthetic Hybrid Motor Oil

This new 0W-8 viscosity is engineered for applications calling for the JASO GLV-1 specification.

AMSOIL hybrid oil
Alex Null’s 6.4L Ford Powerstroke Engine

During our trip to Dallas this year, we spent a day in Weatherford and visited Alex Null and Summit Diesel. We were treated to the details of Alex’s own 6.4L Ford Powerstroke engine build he is finishing up for a race application. It’s our Diesel of the Week brought to you by AMSOIL INC. Related

6.4L Ford Powerstroke
Choate Engineering Performance to Lead Webinar on the Cummins Engine

Cass Choate of Choate Engineering Performance is returning to PERA to talk about the Cummins diesel engine. He will take advantage of his vast experience to delve into its problems and what his shop has learned about fixing them. Related Articles – OptoSurf GmbH Becomes Part of The Mahr Group – Audi Announces Former Ferrari

Chris Patterson Shows Us Around Unrivaled Diesel

Chris Patterson has become one of our favorite diesel engine builders and competitors out there over the last few years. He tells it like it is and doesn’t hold back, and he’s also a pretty good guy who recently gave us some time to check out his Weatherford, TX-based diesel shop called Unrivaled Diesel, where

Unrivaled Diesel