Compound Turbo 6.7L Cummins Engine
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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]
