Popular Posts Blown 414 cid Small Block Chevy Engine Twin-Turbo 427 cid LS Next Engine Single Turbo 6.0L Powerstroke Engine Turbocharged 6.4L Cummins Engine Blown 540 cid Hemi Engine Connect with us advertise with us

Blown 414 cid Small Block Chevy Engine

Twin-Turbo 427 cid LS Next Engine

Single Turbo 6.0L Powerstroke Engine

Popular Posts Blown 414 cid Small Block Chevy Engine Twin-Turbo 427 cid LS Next Engine Single Turbo 6.0L Powerstroke Engine Turbocharged 6.4L Cummins Engine Blown 540 cid Hemi Engine Connect with us advertise with us

Blown 414 cid Small Block Chevy Engine

Twin-Turbo 427 cid LS Next Engine

Single Turbo 6.0L Powerstroke Engine

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; 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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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Whether you’re a professional engine builder, machinist or manufacturer, or an automotive enthusiast who likes engines, racing and fast vehicles, Engine Builder offers content aimed at you. Our print magazine offers in-depth tech features on everything you need to know about engine building and its different markets, while our newsletter options keep you up-to-date on the latest news and products, tech info and personalities in the industry. But, you only get all of that if you subscribe. Subscribe now to receive Engine Builder magazine in print and/or digital each month, and our Engine Builder newsletter, Engine of the Week newsletter or Diesel of the Week newsletter directly in your inbox each week. You’ll be covered in horsepower in no time!

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Why is technology so interesting? For me, it’s because it always changes. No matter what it is, and no matter how good we make something, we always strive to make it better. There’s also proven technology that comes from testing, but more importantly, real-world use and abuse – an example of which is connecting rods. 

I don’t know that connecting rods endure any more or less abuse than any other engine component, but it’s certainly in a different way. A brief look into the forces that play on a connecting rod made me feel more like I was entering advanced scientific mathematics than learning about engine components, but I know enough to understand that it’s all about science and math, so I wasn’t surprised.

Rather than trying to make sense of that, I thought it easier to get the viewpoint of those who make their living on technology and get a glimpse into the latest aspects of connecting rod design. The first leg of my quest for information led me to CP-Carrillo. 

Carrillo Industries, known for their high-performance connecting rods since their founding in 1963, was acquired by CP Pistons in 2008, and have been known as CP Carrillo since. Their rich racing history and their name is a familiar one to engine builders.

Christoph Wachmann gave me a run-down on their connecting rod development. Their most recent advances in connecting rod technology for drag racing are new, high-strength aluminum alloys, heat treatments and process routes. For various steel connecting rod applications, high-strength steel alloys, heat treatments and lightweight designs are among the most recent new developments. “And last but not least are new design approaches for optimization of the system as a piston-connecting rod assembly,” Wachmann added.

Historically, the most common failures they see are related to a faulty bolt/assembly process resulting in insufficient bolt clamp load. They also see beam failure through increased peak cylinder pressure events, the result of knocking or timing issues.

When engineering technology for new rods, they start with a design and their testing routine includes finite element simulation, pulsing tests and engine tests, repeated over and over again as needed. “Pulse testing can give very good feedback on potential structural issues,” Wachmann says. “Engine testing is still needed for verification of any potential dynamic issues and the wear of contact faces and bearings.”

The biggest challenge of connecting rod design, explained Wachmann, is finding the best compromise of light weight, durability and system performance with the piston and crankshaft assembly, and trying to find that compromise within the limited available space.

The design of connecting rods encompasses a number of factors including weight and strength. Wachmann noted that stiffness in certain areas is very important to prevent big-end ovalization and bearing wear, and their dynamic behavior (resonance frequencies) is also critical, making these important design aspects.

Wachmann said the most demanding performance segments they work with are Sprint Cars, Micro Sprint Cars and NHRA Top Fuel. A good majority of the feedback they receive that affects connecting rod design is centered around the available space within an engine that is affected by other components such as counterweights, oil jets and piston crowns.

“To stand out to engine builders, CP-Carrillo focuses on immaculate quality, repeatable durability and light weight,” Wachmann says.

What I learned from Wachmann gave me a good understanding of the world of connecting rod development, far more than complex mathematical formulas would have done, and I also had another leg of the journey to come.

I was able to get some insight on the subject from Trip Manley of Manley Performance Products. A name that is synonymous to the racing industry, Manley Performance was originally founded in 1966 by Hank Manley. Their first couple decades of business were marked by relationships with customers such as Don Garlits, Bo Laws, Joe Mondello, Bill Jenkins, and “Jungle Jim” Liberman.

Trip explained that manufacturing has been an area of heavy focus for them, and manufacturing process improvements have been huge including dynamic milling. Over the years, they have attributed incorrect fastener installation and spun bearings to the cause of the majority of connecting rod failures. 

Manley Performance relies on feedback from their customers in order to build on a research and development plan for connecting rods. “We listen and learn from our hard-charging customer base who are pushing the limits of these engines and components,” Trip says.

Testing connecting rod designs is a multi-faceted operation at Manley Performance. “Finite Element Analysis (FEA) is certainly useful, but the key to FEA is to make certain all the input data and parameters are accurate,” Trip says. I asked if dyno testing was beneficial or if there was a common practice they used, and Trip explained that the testing process could vary depending on the rod itself and what its application was.

“This is not a ‘one shoe fits all’ process,” he says. “Previous experience and designs absolutely are useful and knowing the critical areas of high stress. Dyno testing is helpful, but ultimately the track is where true performance is measured.”

Although not a new material, Manley utilizes 300M alloy steel in its connecting rods when a 15-20% increase in strength is necessary, but builders need to keep the weight down, citing that weight and strength are two key factors of a connecting rod, but reliability is ultimately the most important.

The 300M alloy steel is produced using a process called vacuum arc remelting (VAR). In simple terms, it produces a very high-quality metal. When metal is melted in an open furnace, gasses are dissolved into the liquid. This creates impurities in the metal and can affect the strength. When VAR is used, the metal is melted in a vacuum and under this vacuum the gasses escape from the liquid metal, preventing impurities and resulting in an incredibly strong material. It’s an expensive process, of course, but worth it when the application demands it.

Manley Performance offers connecting rods for all facets of the industry and says no single facet presents a bigger challenge, other than those that have space or clearance restraints to overcome.

“To stand out to engine builders, we focus on the proper strength-to-weight ratio, jewel-like machining, tight tolerances, and ultimately reliability,” Trip says. “Customers know they can count on Manley connecting rods.”

As in many aspects of the industry, engine builders and companies such as Manley and CP-Carrillo work together to develop products that perform. It looks like the human side just might be the most important part of developing connecting rod technology.  EB

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