Tech Articles

Tech Articles

Ask Away! with Jeff Smith: The Science Behind Low-Compression Engines

I’ve seen a couple of posts where the discussion is about how much compression to run and still use a supercharger. There were lots of ideas kicked around but it […]

Tech Articles

The Easy Way to Make 820+ HP in a 4.8L Junkyard Pull

Never before have so many enjoyed so much for so little. Take a look around. We are smack dab in the middle of the second major Muscle Car era, and […]

Tech Articles

Ask Away! with Jeff Smith: Troubleshooting Valve Train on Small Block Chevy 355

I have a 355 c.i.d. small-block Chevy with a big cam, decent compression, and production iron heads. The cam is an Isky 268/272 at 0.050 with 0.640-inch lift. It has […]

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4 Engine Assembly Tips for Maximizing Cam Bearing Performance

For many years, nearly all automotive camshaft bearings were manufactured with a babbitt-metal lining. Babbitt metal is a soft metal comprised mostly of tin (86 percent for Ford Motor Co. […]

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Ask Away! with Jeff Smith: Fixing Spongy Brake Pedal Feel After Transmission Swap

I have a brake bleeding question. We installed a Wilwood four-wheel disc brake system in my ’68 Nova about 15 years ago, and for a couple of years of driving […]

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Dyno Test: 120+ HP Gains and No Low-End Loss with Cam Swap on 6.2L LS Engine

Why were we so excited about swapping cams on the all-aluminum L92? Many reasons. The first was that we had previously run the Summit Stage 4 Pro LS cam (SUM-8711) […]

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Ask Away! with Jeff Smith: How 2618 vs. 4032 Alloys Affect Forged Piston Noise

I am building an LSA supercharged 6.2L motor. I would prefer to run a 4032 forged piston with a 12cc dish to create the proper compression ratio. I recently watched […]

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Dyno Test: Adding 120 HP with Cam Swap in Turbo LS 5.3L

LS engines respond well to cam swaps. It’s probably the #1 upgrade for any LS, because the gains can be dramatic. The reason is that the LS engine family, from […]

Tech Articles

Ask Away! with Jeff Smith: A Brief History of the Airflow-Restricting Chevy 305

How did Chevrolet build the 305 cubic inch small-block? Is it a mash-up of 283 and 350 parts? Or is it just slightly larger than a 302 Chevy engine? — […]

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Clash of the Turbo Titans: Summit vs. eBay Turbos

Turbos rule. If you’re 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 […]