Eric Merchant's Compound Turbo LML Duramax - Engine Builder Magazine

2022-11-03 15:32:16 By : Ms. Nancy Fu

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Popular Posts Could Engine Oil Soon Contain No Oil? Turbocharged 396 cid LSX Engine Steve Morris' 'All the Freedom' 555 cid Big Block Chevy Engine 632 Big Block Chevy Nitrous Engine Compound Turbo 6.0L Powerstroke-Swapped R35 GT-R Connect with us advertise with us

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Add Your Listing Edit Your Listing By Category Engine Components A/N Fittings/AdaptorsAir Induction SystemsBatteriesBearings (camshaft)Bearings (engine sleeve type)Bearings (main rear main)Bearings (Rod)Belt Tensioner/IdlersBrass FittingsBushingsCam CapsCamshaft Belt DrivesCamshaft KitsCamshaft SealsCamshaft Thrust Plate and PartsCamshaftsCarburetorsChain KitsClampsComplete EnginesConnecting RodsConnecting Rods Nuts BoltsCrankshaft ConversionsCrankshaft KitsCrankshaft Oil SlingersCrankshaft Pulley SleevesCrankshaft Repair SleevesCrankshaft SealsCrankshaftsCylinder Head ComponentsCylinder Heads New: Aluminum BareCylinder Heads New: Aluminum CompleteCylinder Heads New: Cast Iron BareCylinder Heads New: Cast Iron CompleteCylinder Heads Reman: Aluminum BareCylinder Heads Reman: Aluminum CompleteCylinder Heads Reman: Cast Iron BareCylinder Heads Reman: Cast Iron CompleteCylinder Liners (sleeves)Diesel InjectorsDipstick Adapters (Chevy Ford)Dowel PinsEFI ComponentsEngine BlocksEngine Blocks - RemanufacturedEngine KitsEngine Management Systems/ECUsEngine MountsExhaust ComponentsExhaust Components: Complete SystemsExhaust Components: Custom ExhaustsExhaust Components: Leak DetectionExhaust Components: ManifoldsExhaust Components: Tube NotchingExhaust Components: Tube SwagingExhaust Components: Tube/Frame Bending MachinesFilters - AirFilters - FuelFilters - OilFlywheel (ring) GearsFlywheel AssembliesFuel Injection - ElectronicFuel Injection - MechanicalFuel PumpsFuel System ComponentsGasket CementGasketsGear DrivesGovernorsHarmonic Balancer Repair SleevesHarmonic Balancers/DampersHead Bolts/StudsHex ShaftsHydraulic Lash AdjustersIgnition ComponentsInjector TubesInjectors - DieselInjectors - Gasoline DirectInjectors - IndirectIntake ManifoldsIPR ValvesKeysLockwashersMain Caps (4-bolt)Manifold StudsNitrous Oxide Systems, ComponentsNitrous Valves and PlatesNuts and BoltsOil CoolersOil Filter AdaptersOil PansOil Pressure SpringsOil Pump KitsOil Pump ScreensOil Pump ShaftsOil Pump Timing CoversOil PumpsOiling Systems; Dry SumpOverhead Camshaft Repair SleevesPiston Pin BushingsPiston Pin Lock RingsPiston PinsPiston RingsPistonsPlugs - ExpansionPlugs - MagneticPlugs - Oil DrainPlugs - StandardPush RodsRadiator/Oil FansRering KitsRestoration Engine PartsRocker Arm Rebuilding ComponentsRocker Assemblies and KitsRocker Stud GirdlesSealsSerpentine BeltsShimsShort BlocksSpark PlugsSpringsSuperchargers, componentsSwitchesTappetsThread RepairThrust WashersTiming Belt/Chain TensionerTiming Belts/ChainsTiming Chains, Gears, SprocketsTiming ComponentsTiming CoversTransmission AdaptorsTurbochargers, componentsValve CoversValve Guide LinersValve GuidesValve KeysValve Lifter BallsValve LiftersValve Locks and SealsValve Seat InsertsValve Spring InsertsValve Spring RetainersValve SpringsValve Stem Oil SealsValve Train PartsValvesWater PumpsWater Tubes Engine Equipment & Preparation Adhesive DispensingAir Flow BenchesAir Handling SystemsBalance Shaft Elimination KitBalance Shaft Line Boring EquipmentBalancing AccessoriesBalancing EquipmentBelt SanderBench GrinderBlock Pressure Testing EquipmentBoring Bar InsertsBoring Bar Tool BitsBoring Machines/Connecting RodBoring Machines/CylinderBoring Machines/LineBoring Stand (For Portable Boring Machines)Brass FittingsBroachBushing Bearing & Seal Driver SetsCAD/CAM SoftwareCam Bearing Installation ToolCamshaft Degree Wheel (Digital)Camshaft GrindersCap & Rod GrinderCBN Inserts - NewCBN Inserts - ResurfacedCleaning Specialized EngineCNC Machining CentersCNC Retrofit KitsCompressed Air EquipmentConnecting Rod GaugesCoolant Filter MachinesCore Shift TesterCrack Repair EquipmentCranesCrankshaft Balance WeightsCrankshaft FurnaceCrankshaft GrindersCrankshaft Journal Weld KitsCrankshaft PolisherCrankshaft Polishing BeltsCrankshaft StraightenerCylinder Head Adapter PlatesCylinder Head Assembly/Disassembly Equip.Cylinder Head Chamfering ToolCylinder Head GaugeCylinder Head HoldersCylinder Head PolishingCylinder Head PortingCylinder Head Pressure TesterCylinder Head StraighteningCylinder Hone StopsCylinder Porting ToolsCylinder Sleeve PressDemagnetizersDiamond DressersDiesel Injector Hole Repair ToolsDiesel Injector Sleeve Installation ToolDowel PullersDye Penetrant InspectionDynamometersEngine Adaptor PlatesEngine Cycle AnalyzerExhaust Leak DetectionFeeler GaugesFlexible Honing Tools/Brush HonesFlywheel GrinderFuel Injection Cleaning ServicesGrinder Head StraighteningGrinding CoolantsGrinding WheelsHardness TestersHead/Block Crack Repair KitsHead/Block Resurfacing (Belt/Sanders)Head/Block Resurfacing (Milling)Heat Tabs Temperature SticksHolding FixturesHone Stop FixtureHoning JigsHoning Machines Wrist PinHoning Machines/CylinderHoning Machines/LineHoning Machines/RodHoning Machines/Valve GuideHoning PlatesHoning StonesIgnition System TestersIn-Process Gauges(Cam and Crank Grinders)Inspection GaugesLeak Down TesterLeveling DeviceMagnetic Particle Inspection Crack DetectionMicropolishing EquipmentOHC Line Boring ToolsOil Leak DetectionPCD Inserts - NewPin Fitting & Rod Reconditioning/TestingPin PressPin RemovalPiston KnurlerPiston Ring CompressorsPre-Cup Machining ToolsPush Rod Guide PlatesReplacement Chuck for Valve FacersRocker Arm GrinderRod AlignmentRod Bolt ProtectorsRod FurnaceRod VisesRun-In StandsStandsStud PullersTapsTest EquipmentThickness GaugeThread GaugesThread Repair & Replacement KitTorque PlatesUltrasonic Test EquipmentVacuum TesterValve Grinding BenchValve Guide & Seat Driver SetValve Guide & Seat MachineValve Guide Boring FixtureValve Guide HoneValve Guide KnurlingValve Guide PilotValve Guide ReamerValve Guide ToolValve Refacer (Cutter)Valve Refacer (Grinder)Valve Refacer WheelsValve Seat CuttersValve Seat InserterValve Seat PullersValve Seat ResurfacerValve Seat Runout GaugeValve Seat Tool GrinderValve Seat WheelsValve Spring CompressorValve Spring TestersValve Stem GrinderValve Stem Height MeasuringValve Stem PolisherWater Tube PullerWet Flow Bench Conversions Supplies & Service Chemicals & SolventsCore Cleaning & ProcessingCranes & HoistsHand ToolsLubricantsPressesServicesShippingStorage Racks & BenchesWelding

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Eric Merchant of Merchant Automotive was another valiant UCC competitor who opted to run a single truck this year. Under the hood of his GMC is a compound turbo LML Duramax. Check it out!

Diesel of the Week is presented by

When it comes to the 2022 Ultimate Callout Challenge, you have to give credit where credit is due. Of course, we’re talking about the competition’s new rule that competitors were allowed to compete with two trucks. Despite that rule change, a few diesel shops decided to keep it old school. In fact, five competitors opted to put together single trucks that survived all three of the weekend’s events – drag racing, a dyno pull and sled pulling. Of those, Chris Patterson saw the best overall finish of the group with a fourth place.

Eric Merchant was another single-truck competitor, and although he placed towards the bottom of the competition, his LML Duramax-powered GMC earned him a second-place finish in the sled pull on the final day of the event.

Merchant has spent nearly 30 years in the automotive industry, with the last 18 being dedicated specifically to the diesel market. He first began doing brake and alignment work in a small shop in 1993, which then led to a 10-year career at a GM dealership where he progressively rose the ranks. In the early 2000s, he bought a Duramax truck and quickly became known as a diesel guy.

Merchant Automotive was founded in 2004 and built from the ground up. Now, 18 years later, it’s the largest Duramax parts supplier, manufacturer, and service center in the world. All the while, Merchant has been fine tuning his competition truck he bought in 2002 nicknamed “Ol Blue.”

“We don’t really have the hardware to compete with the guys at the top level, and that’s okay,” Merchant admitted. “We just haven’t put the same level of commitment into as them and we’re usually just sled pulling all summer.”

Nonetheless, Merchant’s Duramax is pretty impressive and certainly nothing to sneeze at. The engine is built around an LML block, with LBZ-based heads, an internally balanced Callies crankshaft, Wagler rods, Diamond pistons, and a Wagler alternate-fire camshaft. The fuel system is full S&S.

“We’ve got 350% injectors and there’s two 14mm pumps,” he says. “On the control side we have a Bosch Motorsport ECU. We’re still running the Allison transmission with it and that has it’s own challenges, and it’s probably more headache than it’s worth. But the PCS controller seems to help that quite a bit.”

As for the turbo setup, Merchant has run the same setup for the last few years and has seen success despite using “old” hardware. A 104mm atmospheric turbo compresses and force-feeds the air into a smaller BorgWarner 76XSE on the manifold side.

“It’s nothing exotic and they’re heavy wheels, but they’ve been keeping alive for years,” he says.

Without nitrous, Merchant says that truck has produced around 1,800-hp on an engine dyno, but currently sits around 1,500-1,600 hp with the current setup. Unfortunately, on dyno day, Merchant sheered all of the engine’s converter bolts and wasn’t able to make a full pass. The result was 1,270.8 hp.

The team with Eric at UCC worked to get the truck ready for the sled pull, where they expect to shine, and shine they did! Merchant was able to perform up to his standards on Sunday’s sled pull event, where he earned himself a second-place finish with a pull of 297 ft.

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

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Diesel of the Week:  Mechanically Injected Triple-Turbo DX460 Engine

Diesel of the Week:  Twin-Turbo LB7 Duramax Engine

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