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Car Maintenance

How to Tell if Your Wheel Bearing is Bad The key word above is “listen.” Though you may be able to jack-up your vehicle and check the wheel for movement and play, noise will typically be your first (and best) indicator that you’ve got a wheel bearing on its way out. Real Simple, Wheel, Bad, Noise, Vehicle, Movement, Tech, Real Simple Magazine

Real Simple Magazine

How to Tell if Your Wheel Bearing is Bad The key word above is “listen.” Though you may be able to jack-up your vehicle and check the wheel for movement and play, noise will typically be your first (and best) indicator that you’ve got a wheel bearing on its way out.

Summit Racing

Summit Racing

There’s a ton of material here to consider so let’s just dive right in. We’ve included gear ratio charts for the 4L60E, 4L80E, 6L80E and even the 8L80E transmissions for comparison purposes. There are multiple advantages to the transmissions with additional gear ratios. New Chevy, Chevy Nova, Fifth Gear, Ls Swap, Gear 2, Ls Engine, Six Speed, Electric Car, Ecu

There’s a ton of material here to consider so let’s just dive right in. We’ve included gear ratio charts for the 4L60E, 4L80E, 6L80E and even the 8L80E transmissions for comparison purposes. There are multiple advantages to the transmissions with additional gear ratios.

Summit Racing

Summit Racing

Over their lengthy production run, some later engines in the LS family tree got what is known as “two-corner” cooling, while earlier motors often used “four-corner” cooling—the distinction refers to the quantity and location of the steam vent ports on the LS cylinder heads. Summit Racing, Four Corners, Cylinder Head, Family Tree, Converter, Engineering, Motors, Steam

Over their lengthy production run, some later engines in the LS family tree got what is known as “two-corner” cooling, while earlier motors often used “four-corner” cooling—the distinction refers to the quantity and location of the steam vent ports on the LS cylinder heads.

Summit Racing

Summit Racing

How Gasoline is Rated in the US Before we get into the details, let’s cover some basics. Gasoline in the U.S. is rated by combining the Research octane number (which is almost always higher) with the Motor octane number (which is lower) and averaging them-which is what you see on the gas pump as (R+M) / 2 = Anti-Knock Index (AKI). Interestingly, European fuels are rated by their Research octane numbers only, which is a critical distinction that our friends who drive Porches should keep in mind. Jeff Smith, Gas Pumps, Guidelines, Flex, Averaging, Porches, Numbers, Lower, European

How Gasoline is Rated in the US Before we get into the details, let’s cover some basics. Gasoline in the U.S. is rated by combining the Research octane number (which is almost always higher) with the Motor octane number (which is lower) and averaging them-which is what you see on the gas pump as (R+M) / 2 = Anti-Knock Index (AKI). Interestingly, European fuels are rated by their Research octane numbers only, which is a critical distinction that our friends who drive Porches should keep in mind.

Summit Racing

Summit Racing

Today, torquing certain fasteners (particularly connecting rod bolts/nuts) is far different than it once was. The level of sophistication has increased (dramatically) from simply using a torque wrench, tightening to a specified number, and calling it a day. Now we have specifications for fastener torque angle or bolt stretch. Automotive Mechanic, Torque Wrench, Cool Tools, Fasteners, Gauges, Leather Watch, Rod, Measurements, Nuts

Automotive Mechanic

Today, torquing certain fasteners (particularly connecting rod bolts/nuts) is far different than it once was. The level of sophistication has increased (dramatically) from simply using a torque wrench, tightening to a specified number, and calling it a day. Now we have specifications for fastener torque angle or bolt stretch.

Summit Racing

Summit Racing

For anyone building an engine in a small town, the pain of finding all of the little pieces necessary to assemble the thing can be considerable—and we’re not talking about bearings, lifters, timing chains, gaskets, or anything like that. We’re talking about those small, mundane (yet nonetheless vitally important!) parts you need to finish the build. Flywheel, Oil Filter, Spark Plug, Small Towns, Parts, Building, Chains

For anyone building an engine in a small town, the pain of finding all of the little pieces necessary to assemble the thing can be considerable—and we’re not talking about bearings, lifters, timing chains, gaskets, or anything like that. We’re talking about those small, mundane (yet nonetheless vitally important!) parts you need to finish the build.

Summit Racing

Summit Racing

Call it blind faith, but a lot of us have been installing new oil pumps right out of the box without giving them a detailed inspection. Most of the time, pumps are installed right out of the box without consequence. They have a good track record of reliable performance. However, the most seasoned engine builders will tell you there are no unimportant parts. All parts warrant close inspection and massaging before installation. Automotive Repair, Car Mechanic, Ford Racing Engines, Race Engines, Auto Body Repair, Car Repair Service, Ls Motor, Ford 351

Automotive Repair

Ford Racing Engines

Auto Body Repair

Car Repair Service

Call it blind faith, but a lot of us have been installing new oil pumps right out of the box without giving them a detailed inspection. Most of the time, pumps are installed right out of the box without consequence. They have a good track record of reliable performance. However, the most seasoned engine builders will tell you there are no unimportant parts. All parts warrant close inspection and massaging before installation.

Summit Racing

Summit Racing

Pity the poor pushrod. The loads it must encounter are sizable. How sizable? Consider one of the writer’s engines—a simple 565 cubic inch, pump gas big block Chevy. It’s equipped with a set of 1-5/8 inch diameter PAC valve springs (PAC-1224-16). They’re installed with a seat pressure of 250 pounds while the open pressure is 810 pounds. Factor in a rocker arm ratio of 1.7:1 and you’ll find each pushrod in this engine must endure 1,377 pounds of pressure to open a valve. Chevy Motors, Rocker, Automotive, Pumps, Big, Horsepower, Endure, Poor

Pity the poor pushrod. The loads it must encounter are sizable. How sizable? Consider one of the writer’s engines—a simple 565 cubic inch, pump gas big block Chevy. It’s equipped with a set of 1-5/8 inch diameter PAC valve springs (PAC-1224-16). They’re installed with a seat pressure of 250 pounds while the open pressure is 810 pounds. Factor in a rocker arm ratio of 1.7:1 and you’ll find each pushrod in this engine must endure 1,377 pounds of pressure to open a valve.

Summit Racing

Summit Racing

Ever heard of “free gap” in a piston ring? It’s a valuable spec to know before assembling your engine, and can tell you a lot about the operating environment inside your motor later on. The piston ringleaders over at Total Seal Piston Rings made a quick, three-minute video that’ll explain what piston ring free gap is, how to measure it, and what to look for during engine disassembly. Piston Ring, Pistons, Gap, Canning, Video, Rings, Heard, Engine

Ever heard of “free gap” in a piston ring? It’s a valuable spec to know before assembling your engine, and can tell you a lot about the operating environment inside your motor later on. The piston ringleaders over at Total Seal Piston Rings made a quick, three-minute video that’ll explain what piston ring free gap is, how to measure it, and what to look for during engine disassembly.

Summit Racing

Summit Racing

Pity the poor pushrod. The loads it must encounter are sizable. How sizable? Consider one of the writer’s engines—a simple 565 cubic inch, pump gas big block Chevy. It’s equipped with a set of 1-5/8 inch diameter PAC valve springs (PAC-1224-16). They’re installed with a seat pressure of 250 pounds while the open pressure is 810 pounds. Factor in a rocker arm ratio of 1.7:1 and you’ll find each pushrod in this engine must endure 1,377 pounds of pressure to open a valve.

Pity the poor pushrod. The loads it must encounter are sizable. How sizable? Consider one of the writer’s engines—a simple 565 cubic inch, pump gas big block Chevy. It’s equipped with a set of 1-5/8 inch diameter PAC valve springs (PAC-1224-16). They’re installed with a seat pressure of 250 pounds while the open pressure is 810 pounds. Factor in a rocker arm ratio of 1.7:1 and you’ll find each pushrod in this engine must endure 1,377 pounds of pressure to open a valve.

Summit Racing

Summit Racing

Lockup torque converters became popular in the 1980s to meet federal fuel economy standards, but they are also beneficial in performance applications. When a torque converter clutch is engaged, it creates a near direct-drive effect and slippage becomes virtually non-existent, regardless of rated stall speed. Torque Converter, Fuel Economy, Stall, Engaged, 1980s, Speed, Performance, Federal

Torque Converter

Lockup torque converters became popular in the 1980s to meet federal fuel economy standards, but they are also beneficial in performance applications. When a torque converter clutch is engaged, it creates a near direct-drive effect and slippage becomes virtually non-existent, regardless of rated stall speed.

Summit Racing

Summit Racing

Recently, we ran a story on 24 Overlooked Engine Building Tips. And before that, we put together a list of 12 Things to Make Your Vehicle Easier to Work On. Now, we’ve got a list of a dozen high performance tech tips many of you can use. While a few of these are Chevy-specific, the rest can be used on plenty of other vehicles and engines, whether it’s for the street, track, or off-road. 12 Gauge Wire, Hose Clamps, Classic Chevy Trucks, Steering Column, Rat Rod, Auto Repair, Corvette

Classic Chevy Trucks

Steering Column

Recently, we ran a story on 24 Overlooked Engine Building Tips. And before that, we put together a list of 12 Things to Make Your Vehicle Easier to Work On. Now, we’ve got a list of a dozen high performance tech tips many of you can use. While a few of these are Chevy-specific, the rest can be used on plenty of other vehicles and engines, whether it’s for the street, track, or off-road.

Summit Racing

Summit Racing

How to Check Torque Wrench Calibration at Home For something like an 18 inch wrench such as the older torque wrench shown in the accompanying photos, measure back from the square drive to the center of the handle (15 inches from the square drive in our example) and mark the handle. This is a reference number. Write it down. Car Life Hacks, Torque Wrenches, Truck Repair, Small Engine, Write It Down, Repair And Maintenance, Tools And Equipment, Melting Metal, Antenna

Torque Wrenches

Repair And Maintenance

Tools And Equipment

How to Check Torque Wrench Calibration at Home For something like an 18 inch wrench such as the older torque wrench shown in the accompanying photos, measure back from the square drive to the center of the handle (15 inches from the square drive in our example) and mark the handle. This is a reference number. Write it down.

Summit Racing

Summit Racing

As part of your car care routine, you’ll want to track down the source of any leaks and make the appropriate repairs. That’s why we put together an infographic to get you headed in the right direction. It’ll help you identify the cause of that stain on your garage floor, or that wet spot in the driveway. And maybe, just maybe, you’ll have that mystery leak fixed before a minor headache turns into a major problem. INFOGRAPHIC BY GEORGE COMBS. Car Care Checklist, Car Care Tips, Wet Spot, Radiator Hose, Oil Pan, Brake Fluid

Car Care Checklist

As part of your car care routine, you’ll want to track down the source of any leaks and make the appropriate repairs. That’s why we put together an infographic to get you headed in the right direction. It’ll help you identify the cause of that stain on your garage floor, or that wet spot in the driveway. And maybe, just maybe, you’ll have that mystery leak fixed before a minor headache turns into a major problem. INFOGRAPHIC BY GEORGE COMBS.

Summit Racing

Summit Racing

One of the most tedious, time-consuming steps in any automotive paint and body project is the initial prep of the car, truck, or SUV’s body surface to inspect the underlying metal. Summit Racing’s Surface Restorer makes a difficult task much faster and easier. This lightweight, handheld body prep tool makes short work of rust, paint buildup, primer, and whatever else has attached itself to your vehicle’s body. Prep Tools, Automotive Paint, Garage Shop, How To Make Shorts, Restoration, Rust Paint, Surface, Inspect

Automotive Paint

How To Make Shorts

One of the most tedious, time-consuming steps in any automotive paint and body project is the initial prep of the car, truck, or SUV’s body surface to inspect the underlying metal. Summit Racing’s Surface Restorer makes a difficult task much faster and easier. This lightweight, handheld body prep tool makes short work of rust, paint buildup, primer, and whatever else has attached itself to your vehicle’s body.

Summit Racing

Summit Racing

Even though it’s a GM LS world, the Gen 1 small block Chevy remains a popular choice for many builders. We’re going to show you how to build a 422 cubic inch stroker small block that makes 700-plus horsepower that even an LS guy will respect. Even better, the majority of the parts are off-the-shelf items. Belt Drive, Powersports, Lube, Pulley, Chevy

Even though it’s a GM LS world, the Gen 1 small block Chevy remains a popular choice for many builders. We’re going to show you how to build a 422 cubic inch stroker small block that makes 700-plus horsepower that even an LS guy will respect. Even better, the majority of the parts are off-the-shelf items.

Summit Racing

Summit Racing

If the rotating assembly is the heart and soul of your engine, then the camshaft is the brain. The camshaft controls the movement of the entire valvetrain, telling the valves when to open and close and allowing your engine to breathe properly. Write My Paper, Best Stocks, Glossary, Stock Market, Terms, Finance, Breathe

If the rotating assembly is the heart and soul of your engine, then the camshaft is the brain. The camshaft controls the movement of the entire valvetrain, telling the valves when to open and close and allowing your engine to breathe properly.

Summit Racing

Summit Racing

18 Ignition Wire Assembly & Routing Tips Multimeter, Simple Tasks, Valve Cover, Science Projects, Ignite

Science Projects

18 Ignition Wire Assembly & Routing Tips

Summit Racing

Summit Racing

Piston design has evolved over the years, and thanks to the folks from MAHLE Motorsports we’re able to sort through many of the options and much of the technology (and it most certainly doesn’t apply to MAHLE pistons exclusively either). There’s something here for everyone. Power Pack, Technology, Options, Design

Piston design has evolved over the years, and thanks to the folks from MAHLE Motorsports we’re able to sort through many of the options and much of the technology (and it most certainly doesn’t apply to MAHLE pistons exclusively either). There’s something here for everyone.

Summit Racing

Summit Racing

Precision-manufactured by the pioneers in exhaust performance, Borla ProXS mufflers feature proven, high performance technology that is surprisingly affordable. These silencers are manufactured from rust-resistant, aircraft-quality T-304 stainless steel. They'll deliver more power, improved fuel economy, prolonged engine life, and a street-commanding growl that conveys performance. Borla ProXS mufflers are available in a variety of inlet and outlet size/quantity/location configurations. Pipe Repair, Bend Tube, Driving Habits, Performance Exhaust, High Performance, Buick Century, Pontiac Grand Prix, Chevrolet Impala

Performance Exhaust

High Performance

Pontiac Grand Prix

Chevrolet Impala

Precision-manufactured by the pioneers in exhaust performance, Borla ProXS mufflers feature proven, high performance technology that is surprisingly affordable. These silencers are manufactured from rust-resistant, aircraft-quality T-304 stainless steel. They'll deliver more power, improved fuel economy, prolonged engine life, and a street-commanding growl that conveys performance. Borla ProXS mufflers are available in a variety of inlet and outlet size/quantity/location configurations.

Summit Racing

Summit Racing

There are thousands of different pistons available from Summit Racing. They come from just about every piston manufacturer in the business and they fit every price range and almost every conceivable application. So which piston do you pick? Micro Welding, Automotive News, Hand Guns, Price Range, Culture

Automotive News

There are thousands of different pistons available from Summit Racing. They come from just about every piston manufacturer in the business and they fit every price range and almost every conceivable application. So which piston do you pick?

Summit Racing

Summit Racing

Aftermarket exhaust system options can be overwhelming. Learn about the different types of exhaust systems and tips on how to choose the right one for your vehicle. Selections include cat-back exhausts, header-back exhausts, dual exhausts, and single exhausts. Choose The Right, Are You The One, Porsche 912, Exhausted, Summit, Header, Chosen, Dual

Choose The Right

Are You The One

Aftermarket exhaust system options can be overwhelming. Learn about the different types of exhaust systems and tips on how to choose the right one for your vehicle. Selections include cat-back exhausts, header-back exhausts, dual exhausts, and single exhausts.

Summit Racing

Summit Racing

Wander through the pits at any drag race or examine enough cars at shows, and sooner or later you’ll find beat-up AN fittings. Some will have a few nicks and bruises. Others may have even greater damage. There’s good reason for that: those AN fittings are made of aluminum—a material that’s softer and more delicate than steel. Magnetic Knife Strip, Drag Race, Wander, Greater, Damaged, Proper, Prevention, Aluminum

Magnetic Knife Strip

Wander through the pits at any drag race or examine enough cars at shows, and sooner or later you’ll find beat-up AN fittings. Some will have a few nicks and bruises. Others may have even greater damage. There’s good reason for that: those AN fittings are made of aluminum—a material that’s softer and more delicate than steel.

Summit Racing

Summit Racing

Tire tread wear comes in many forms. The wear pattern on your tires may be normal or it could be the result of an underlying issue. For example, you may be over-inflating your tires or your tire pr… Automotive Tires, Automotive Carpet, Automotive Detailing, Engine Repair, Automotive Furniture

Automotive Tires

Automotive Carpet

Automotive Detailing

Automotive Furniture

Tire tread wear comes in many forms. The wear pattern on your tires may be normal or it could be the result of an underlying issue. For example, you may be over-inflating your tires or your tire pr…

In simpler times, carburetors relied on mechanical fuel pumps, and EFI engines required high-pressure electric pumps. Things aren’t so simple anymore because times have definitely changed. Even the… Fuel Injection, High Pressure, Dyson Vacuum, Mechanic, Vacuum Cleaner, Electric, Simple

In simpler times, carburetors relied on mechanical fuel pumps, and EFI engines required high-pressure electric pumps. Things aren’t so simple anymore because times have definitely changed. Even the…