Active Fuel Management (AFM) is a trademarked General Motors technology that improves gas mileage by shutting down half of the cylinders under light-load conditions to reduce fuel consumption. It is also known as Displacement on Demand (DoD) or cylinder deactivation. How Does AFM Affect Performance? AFM is good for gas mileage and can be 5-7 percent
Jason Line, a three-time NHRA Pro Stock champion, unveiled a freshly restored and rare 1970 Buick Gran Sport 455 convertible at the Muscle Car and Corvette Nationals in Rosemont, IL earlier this month. He bought the car on eBay about four years ago and put it through a major restoration via the automotive magicians at
YOKOSUKA, Japan — The 2017 Operation Appreciation tour is off and running as the team visits military installations in Japan for the first time. Summit Racing Equipment and Armed Forces Entertainment have banded together once again to bring a bit of home to those on post by sending a roster of Motorsports champions to meet
Turbochargers are becoming a go-to power adder, and not just for imports. Chevy and Ford currently have turbocharged engines in their lineup, and even the new Jeep Wrangler is expected to get a turbo’d four-cylinder. Want to know how a turbocharger works? Here’s a good 101. Since turbochargers are becoming more common, upgrading turbo systems
They looked a little weird—a little funny. The dozen B-body Mopars Chrysler unleashed in 1964 for Factory Experimental drag racing had an odd-looking profile. Both the front and rear wheels had been moved forward significantly—up 15 inches in the rear and up 10 inches in the front to where the front tires were right on
A parking lot is a parking lot—unless it’s the Summit Racing parking lot. On any given day or time, the lot outside a Summit Racing store can turn into an impromptu mini car show, depending on who’s stopped by the store. On Wednesday, we often share a notable parking lot find—another benefit of being powered by
Earlier this month, Chevy pulled the wraps off its new Corvette ZR1. (You can read more about it here.) But what if you want the wind-in-your-hair pleasure of a convertible? Well, Chevy’s got you covered with a soft-top version of its tire-blistering halo car. Unveiled this week, just prior to the LA Auto Show, the
Motorsports legend Walter “Bud” Moore Jr.—a champion car owner and crew chief inducted into the NASCAR Hall of Fame in 2011—died this week. He was 92. Better known as Bud Moore, Moore was the oldest living Hall of Fame member. He was the crew chief for Buck Baker when they won the NASCAR premier series
LAS VEGAS, NV — Automotive performance companies like to use the annual SEMA Show in Las Vegas to unveil their latest products. We caught up with Mike Kovacs from Edelbrock during the show to see what the company has up its sleeves for 2018. Turns out those sleeves are pretty big, because Kovacs had a lot to tell
You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re discussing removal of emissions controls on, and rebuilding a carburetor for, an ’85 Monte Carlo SS. Q: Two questions: I have a stock 1985 Monte Carlo SS with a 305. I have
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