![]() ![]() We do have a secondary pump to help feed it, System, so the same injectors and the same high-pressure oil pump that comes inĪll 7.3s, we have on this engine. Need to add a dry sump oil system to the engine.ħ.3 with this type of injection system,” he says. Everything else in the engine is pretty much stock, except Gray did Plate they modified, some big 7/16ths pushrods, and COMP Cams beehive valve Gray also runs an ATI dampner up front, a flex It’s huge if we can get a few hundred rpms additional out of it.”Īn 85mm Garrett turbo to the engine. Tallest tire Mickey Thompson makes to try and get as much gear ratio as Some long tube headers for the engine, which has definitely seemed to open up Which definitely helps a lot in our drag setup. Get more power in the cylinder and then bring the power range up in the rpms, “We really have made some leaps and bounds that allow us to It’s been a lot of my time and money trying to develop new pieces inside of thisĮngine,” Gray says. Time, but that hasn’t slowed down Gray’s Diesel Performance. It doesn’t just empty itself like you want it to and takes a long That’s one reason why I think our 7.3 lives.”Īccording to Gray, is the injector. “We did this stuff to try to show the engine’s capabilities, and Iįeel it improves the reliability of the engine, because there’s more even powerĪcross all eight cylinders instead of just the middle four cylinders trying to Intake and individual runner nitrous system, which is the first of its kind,” Upgraded parts such as the dampner and the flex plate. Hypermax rods and a forged crank in the stock, cast block, which is half filled. Shop felt a certain upgrade would make an improvement. Today, we also have someīillet Diamond pistons with my bowl design in the engine.Ĭompared to some of the guys we’re racing against with all billet engines –īillet blocks, billet heads, billet cranks, etc.” Hypermax rods and Diamond pistonsīeen one of upgrading parts and aspects of the engine as needed or where the Piston rings from Mahle and a top fuel bore size. Right now, we’re running a top fuel 4.188˝ bore. “We justįlat out overcame the power potential or power capability of the stock pistons.Īfter we started cracking the pistons, we did switch bore size. Was flawless, so it wasn’t anything to do with the tune,” Gray says. Fortunately, they were able to find that issue before a failure occurred. When Gray’s Diesel Performance managed to get the 7.3 up and over 1,500 horsepower, the shop did start to have a problem with the pistons cracking from the piston pin to the second ring. Was 6.39 in the 1/8th and 9.09 in the quarter, and we’re running 4.92 now in We wanted to beat the record and thought we could beat the record. The truck and engine just slowly progressed into what it is now. To build the engine right off the bat because it had been sitting for five orġ0 years. Used truck slowly progressed into a fast, four-wheel drive, street truck. Got a used truck so I could afford the house payment,” he says. There’s only been a couple of people whoĬame into his life when he wanted to buy a house, but needed some extra money While performance work isn’t the majority of what Gray’s Diesel Performance does, the shop does lay claim to owning the world’s fastest 7.3L Powerstroke, and the second fastest Powerstroke of any displacement.Ĭrank, running 4.92 at 144.24 mph in the 1/8th mile,” Gray says. I’m definitely not a jack ofĪll, master of none. I like to be the best at everything I do. “We kind of pick and choose what we want to do on the Dodge shop and moved in August 2015.”įL-based shop focuses mostly on light-duty repair and service, but does do someĬhevy diesel,” he says. shop, and then we switched over to renting a 10,000 sq.-ft. ![]() “We opened Gray’s Diesel Performance in August 2012. “When I was done with racing, I was looking for a career, so I went into the diesel field,” Gray says. ![]() His passion for this industry only escalated from there. Into Mustangs, four-wheel drives, doing frame swaps and changing transmissions. Kind of tinkering got him into working on engines. Professional rider, Brian would often have to do work on his own bike, and that Racer, Brian Gray was introduced to the wonders of speed at a young age. ![]()
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