Tech Articles

Tech Articles

Truck Cam Swap Testing to Add Low-End Torque

The LS engine remains the darling of the performance world, but does that mean all LS owners are looking for the same thing when it comes time for upgrades? Obviously […]

Tech Articles

Ask Away! with Jeff Smith: Matching Fuel Pumps, Lines & Injectors for Max Power

I need help understanding EFI high pressure fuel systems. I have researched all over but the answer eludes me. What determines line size? I’m trying to build a Whipple Supercharged […]

Tech Articles

Installing a Hotchkis Sport Suspension Kit on a 1981 Chevy Camaro

In the high-performance world, nothing ever remains stock. That makes it difficult for aftermarket companies to design parts and kits that are true, easy bolt-ons for every car—where literally nothing […]

Tech Articles

Old vs. New: Comparing Vintage and Modern Intake Manifold Design

Intake manifold technology has progressed by leaps and bounds over the years. (Or, has it?) Additionally, there are many more players in the intake manifold business than we saw years […]

Tech / Tech Articles

Turbo Clash: Ebay vs. Summit Racing Turbo

Turbos rule! If you are a turbo guy (or gal), there has never been a better time to be an enthusiast. Just look around…turbos are everywhere and on everything. Not […]

Tech Articles

Mailbag: Explaining Valve Overlap for Camshafts

Q: What is valve overlap? … A: Overlap is when the intake and exhaust valves are open at the same time. It is expressed in degrees of crankshaft rotation. Not […]

Tech Articles

Ask Away! with Jeff Smith: Tuning an Edelbrock 1406 Carb to Cure Fat-Running ’72 Jeep CJ-5

I have a 1972 Jeep CJ-5 with a 3.73:1 gear and 33-inch M/T tires. The engine is an AMC 360 rebuilt with 8.75:1 compression, stock heads, and a COMP Thumper […]

automotive fittings - photo by Hot Rod
Tech Articles

AN Fittings Torque Chart for Automotive Plumbing

AN stands for Army-Navy. The size specifications were established by the U.S. military during World War II and were originally used in the aerospace industry. AN fittings use a 37-degree […]

Tech Articles

Improving Hook with Sway Bars on Drag Cars

In the past, we’ve taken a look at the forces at work when a vehicle is accelerating. To recap: “…as each cylinder in the engine fires, the pistons (and consequently […]

Tech Articles

Piston Ring Compressors: Different Strokes for Different Folks

When installing pistons, the first step is to wipe the cylinder bores with a clean, lint-free towel, and apply a small amount of conventional (non-synthetic) oil to the walls. It’s […]