Compound Turbo 6.7L Cummins Engine

Compound Turbo 6.7L Cummins Engine

Diesel of the Week is offered by

It is no doubt that sled-pulling demands a reasonably powerful engine below the hood of any opposition truck – propelling a ~55,000-lb. fat transfer sled across a dust-packed monitor is no straightforward job. For that explanation, competitors just take a whole lot of time wonderful-tuning their truck and engine setups to generate the most powerful and efficient combination.

The 6.7L Cummins is a mainstay in the diesel pulling world, most of all for its trustworthiness and simplicity for producing electrical power. Many guys at the top of the totem pole boast a Cummins, albeit with different configurations of factors, bolt-ons, and device work. Chris Patterson was one of the guys we spoke with past yr at UCC – his triple-turbo 6.7L Cummins engine really amazed us.

Lately, Michael Brown attained out to us about a equivalent create, which was also spec’d out by Chris at Unmatched Diesel. “Chris and I assembled it with each other and he was a big aid in this establish,” Michael Brown claims.

Positioned in Dixon, TN, just 40 miles west of Nashville, Brown is a mechanic for the United States Postal Company and functions on semi-trucks. Exterior of his day work, he will work on Cummins trucks out of his compact property-shop. For the past 5 several years or so, he’s been associated in diesel competitiveness, each competing himself and building competitors engines for consumers.

Last calendar year was his very first time competing at King of the Avenue, and this calendar year he’s hoping to up the ante at the event and other competitions with this new create. The 6.7L at the moment sits underneath the hood of an ’07 5.9L truck, which he takes advantage of for pulling, but can however be road driven far too.

“It’s a Hamilton Competitors 6.7L block that continue to has coolant by means of it, the pistons are bored .020″ more than, it has D&J regular billet rods and software steel wrist pins, a Beans Device 14mm girdle, and a Hamilton camshaft, tappets, rockers, and pushrods,” Brown suggests.”

The motor also options a D&J Stage 3 cylinder head, with a D&J Phase 3 billet intake manifold, oversized super alloy consumption and exhaust valves, thread-in smooth plugs in the head, titanium valve spring retainers, and weighty-duty more-big consumption seats. This Cummins performance cylinder head will get the consumption circulation up to 300 cfm (stock is 165).

On the fuel aspect, the engine has two Exergy 14mm CP3 pumps and Flux General performance 400{49e09b23eae7466ccc7574c19ebb3019301c9a11d2999feff81a3526451546a5} competition hybrid injectors. There is also two AirDog 5G raise pumps.

Air is supplied to the motor via a compound turbo procedure, comprised of a 498 environment and a 76mm manifold, both of those from Tater Created. Both of those are ball-bearing units, with a one wastegate to hot pipe.

“We run a bit of nitrous on it too,” he states. “It’s acquired a Nitrous Categorical Maximizer 5 with three minimal solenoids, and a single bigger.”

The current setup has not been dyno’d since very last 12 months, but at that time, Brown’s Cummins created 1,510 horsepower. It only experienced one particular gas pump at the time, and Brown options on installing larger turbos in the near foreseeable future which will unquestionably up the power even a lot more.

Diesel of the 7 days is sponsored by AMSOIL. If you have an engine you’d like to spotlight in this sequence, make sure you email Engine Builder Editor Greg Jones at [email protected]

6.7L Turbocharged Cummins Engine – Engine Builder Magazine

6.7L Turbocharged Cummins Engine – Engine Builder Magazine

Diesel of the Week is presented by

Jessie Harris’ 1975 Chevy C10 has been handed down for generations. His grandfather procured it new in ’75, ahead of offering it to Jessie’s father in ’78, and then Jessie got his fingers on it in the ’90s the moment he got his license.

Practically 50 several years afterwards and that exact same C10 has long gone by way of really a couple of variations. In truth, the two-wheel-travel Chevy just lately acquired Swiftest Diesel honors at Ill 7 days 2023. The equipment was one particular of only a several diesels at the celebration and proved to be a stunner on the drag strip. It is been known to go away the line with 50-psi of enhance on faucet and pull the entrance wheels off the ground in route to 1.1-second 60-foot moments.

Just before Unwell 7 days, Harris’ truck could be noticed at Rocky Mountain Race Week and Very hot Rod Drag 7 days on many situations. He’s been racing the Cummins-run truck considering that 2015, but just before that, the truck was functioning gasoline, e85 or alcohol. Its diesel existence commenced with a 5.9L P-pumped 24v Cummins that Harris experienced taken off from his tow truck and dropped into the Chevy. Now, it offers a turbocharged 6.7L Cummins that turns heads anywhere it goes.

The engine is constructed close to a stock block and has a stock crankshaft, Carillo rods, and Arias pistons. The head was accomplished by Wagler Competitiveness Merchandise and has a Financial institutions consumption on it, and the camshaft is a Hamilton 188/220. It also has inventory rocker arms.

“For the turbo setup we went with a single turbocharger, an S484/96 with a DPS Turbonator VGT housing,” Harris suggests. “The fuel procedure is S&S Diesel Motorsports, it’s their 400{49e09b23eae7466ccc7574c19ebb3019301c9a11d2999feff81a3526451546a5} more than injectors and 14mm race pump. The rest of the gasoline system is Aeromotive.

“I bought the intercooler from True Road Effectiveness in Florida. I desired a significant core, and most people today didn’t want to speak about it, but they could do it. The front address is a Wagler device and it’s capable of driving 4 pumps, while I’m driving one gasoline pump and 1 dry-sump oil pump. Not lots of people today do dry sump on diesels, but my oil pan clearance pressured me to, and I don’t regret it.”

As Harris carries on to improve and alter his engine set up, the tune from his EFI Live also will get modified. For a prolonged time, he was generating just around 900 horsepower, but Harris believes that range was turned up to close to 1,200-hp through Sick Week.

The target for Sick Week was to get underneath 8.70 – sadly that did not come about, but Harris characteristics that to turning up the motor too quickly. The engine tune is ideal where by is requirements to be, but Harris has far more work to do on the chassis to pull every little thing collectively. The top intention will be do get the truck over the 1,500-horsepower barrier.

Diesel of the Week is sponsored by AMSOIL. If you have an motor you’d like to emphasize in this sequence, please email Engine Builder Editor Greg Jones at [email protected]