Month: December

Mailbag: Close Ratio vs. Wide Ratio Transmissions & More

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we cover the difference between close ratio and wide ratio transmissions and provide casting numbers for GM differential carriers. R.C. Elmore, AL Q: I have a couple questions regarding driveline performance: First, I have seen the terms “close ratio”

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How it Works: Blow-Off Valves

The guys over a Power AutoMedia have launched a new site dedicated strictly to diesels and diesel owners. The site, named Diesel Army, includes tech, diesel features, diesel-related news, and a section called “How it Works.” In the first installment of How it Works, Diesel Army covers the ins and outs of blow-off valves. The

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Detroit Locker: History, Anatomy & FAQs About the Toughest Differential in Town

[portfolio_slideshow id=26782] Back in the day, if you needed the toughest, most-capable differential on the street, you ran a Detroit Locker.  When you want the same kind of differential today, the choice is still a Detroit Locker. It’s the most durable and dependable locking differential available. The Detroit Locker is an automatic locking differential that

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Buyer’s Guide: Our 10 Favorite Cragar SS Wheels

Cragar SS wheels are classics. They’ve been around as long as the American muscle car itself, and the forward-thinking designers at Cragar have continued to roll out new flavors of the venerable SS over the past 50-plus years. Whether you’re into American muscle, classic street rods, or trucks, there is a set of Cragar SS wheels

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Video: Steve Kinser Gears Up For Final Championship Run

The man who may be the most-dominant driver in all of motorsports is preparing for one final championship run. Steve Kinser, the 20-time champion of the World of Outlaws STP Sprint Car Series, announced earlier this month that the 2014 racing season will be his last. Kinser won the first-ever championship in the World of

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Basic Maintenance Series: 9 Ways to Prepare for Winter Driving

Editor’s Note: This guest post is courtesy of the Car Care Council, which is dedicated to educating vehicle owners about the benefits of regular vehicle maintenance through its “Be Car Care Aware” program. If you live in a cold weather climate, chances are your hot rod or muscle car is already tucked snugly away for the winter.

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Fuel Injection Pioneer Stu Hilborn Passes Away

The name Hilborn is synonymous with fuel injection. Hilborn-style fuel injection systems have been around since the 1940s when Stuart Hilborn developed his first homemade fuel injection system. He proved the system’s merits on the dry lakes, where he became the first hot rodder to break the 150 mile-per-hour barrier. Stuart Hilborn passed away yesterday at the age of 96. The legend

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Mailbag: Rebuilding a Chrysler 318 for Maximum Torque

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re rebuilding a small block Mopar to produce maximum low-end torque: Q: I am restoring a Dodge M37 military truck. I’m replacing the original 230-cubic-inch straight six with a Chrysler 318 V8 and an NP435 4-speed manual transmission. The

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