Monday Mailbag: How Connecting Rod Length Relates to Supercharger Performance
You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re prepping an engine for optimal supercharger performance. A.C. Barranquitas, PR Q: I have a 1977 Chevy Nova. It is primarily for drag racing, though I do run it on the street occasionally. I want to build a 383 small block
Real-World Powerplants: Christopher Howard’s Mopar 390 Stroker
Editor’s Note: Real-World Powerplants is a recurring series that profiles engines and engine builds by everyday high performance enthusiasts—hot rod hobbyists with DIY work ethics and real-world budgets. Mopar’s 318 small-block engine is the ultimate sleeper engine. One of the most common Mopar V8s of all-time, the 318 is reliable, affordable, and readily available. Since most 318s
Yard Machine: Restoring a 1968 Cub Cadet with Help from Summit Racing
[portfolio_slideshow id=30874] Muscle cars, monster trucks, and motorcycles get all the glory, but sometimes the coolest cruisers are hiding in plain sight. And by that, we mean in your garage, or storage shed, or under a blue tarp in the back yard. We’re talkin’ lawn tractors—like this 1968 International Harvester Cub Cadet Model 72. For
Starting Line: Installing a Summit Racing Protorque Starter on a Ford F-150
[portfolio_slideshow id=30852] Gear reduction mini starters are common in the hot rod world, where high compression engines need all the help they can get to light off. Those of us with 4x4s can also benefit from gear reduction mini starters–even if we are not running 15:1 compression and race fuel. To illustrate, we recently added
Video: How to Troubleshoot Starter Problems
Diagnosing starter problems is tricky. Watch this Summit Racing Quick Flicks video to learn about some common causes for automotive starter problems, including wiring, solenoids, and starter engagement. Check it out.
Mailbag: Troubleshooting Fuel Level Gauge Problems
You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re helping to diagnose some fuel level and oil pressure gauge troubles. W.K. Lucama, NC Q: I own a 1950 Ford F-1 pickup with Flathead V8 engine. I have changed the truck over to a 12-volt electrical system, and put a
Video: Sneak Preview of Denny Terzich’s 1,500-Horse ’55 Chevy
The goal is simple: Create a modern version of a 1955 Chevrolet. The road to achieving that goal? Well, that’s been anything but simple. In fact, car builder and ProRides owner Denny Terzich says his team has done well over 100 modifications (and counting) to this radical ’55 Chevy, which he’s nicknamed Project X-BOX. But
Ask Away with Jeff Smith: How Do Relays Work?
I want to install an electric fan in my ‘67 Mustang and I’ve been told that I have to use a relay to wire it properly. I hate to admit this, but I really don’t understand how relays work and why I need one. I know that I can’t just hook the fans to a
Banging Gears: 24 Tried & True Clutch Tips
Banging gears with a manual transmission is fun—if your clutch is up to the abuse, that is. When it’s time to replace or upgrade your clutch, these two dozen tried and true clutch, pressure plate, and flywheel tech tips and tricks will come in mighty handy. Here’s the collection: Play Ball If your car
Super M.D.: Quick Guide to Diagnosing Roots Supercharger Issues
What screams “horsepower” more than a Roots-style supercharger poking out of a hood? Blowers produce big power gains, offer excellent throttle response with little or no lag, and newer models even deliver decent fuel economy. And oh yeah—they look killer, too. The fact that most superchargers are virtually maintenance-free? Well, that’s an added bonus to




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