Mailbag: Troubleshooting Drivetrain Vibration

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we explore possible causes for drivetrain vibration: R.M. Sandusky, OH Q: I have a vibration problem with my 1979 Chevy Caprice two-door. I replaced the 305 engine with a 355 that has a mild street cam, a Holley 750 with

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Autorama Releases Summit Racing Show Car Series Schedule

The 2014 Summit Racing Show Car Series schedule is now available. The Summit Racing Show Car Series is the place to see custom cars, trucks, motorcycles, hot rods, race vehicles, antique cars, and other vehicles at indoor shows from Houston, TX to Calgary, Canada. This year’s series includes an International Show Car Association (ISCA)-sanctioned competition.

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1965 Corvette Wins 2013 OPTIMA Ultimate Street Car Title

The 6th Annual OPTIMA®  Ultimate Street Car Invitational, presented by Royal Purple Synthetic Oil and K&N Filters, successfully hosted a full field of 58 participants driving the world’s best street vehicles, in front of the largest spectator crowd the event has ever seen. A day full of amazing vehicle performances, impressive lap times, and surprising finishes

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RZR XP 4 1000 – The Ultimate Experience for Four

If two is a party, and three is a crowd, then four must be a rocking good time and the Polaris RZR XP 4 1000 is a concert on wheels. Polaris took the 107-horsepower engine they placed in the RZR XP 1000, extended the frame, added two more seats, and only added 217 pounds. The

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Mailbag: Selecting the Right Header Primary Size

Q: I have built up a 1970 Monte Carlo with a 350. I want to run the car at the track, so I’m thinking I need to scrap my 1 5/8-inch primary headers for something bigger to help the engine make some extra top-end power. However, I don’t want them to be too free-breathing–I want to

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Photo Gallery: Cars are the Stars of SEMA 2013

[portfolio_slideshow id=25460] LAS VEGAS, NV. — For all the celebrity appearances and highly anticipated product releases, there’s no doubt that the cars are really the stars here. We did some more star-gazing yesterday and snapped hundreds of additional photos. Take a peek at our latest gallery above and look for a mega-huge SEMA wrap-up gallery later on.

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General Motors Unveils Three Stingray Concepts at SEMA

[portfolio_slideshow id=25191] LAS VEGAS, NV. — General Motors and its largest brand, Chevrolet, brought another big lineup of concept cars to SEMA 2013, including nine sports car variants. Headlining the group was a trio of 2014 Corvette Stingray concept cars. Stingray Concept Vehicles Stingray Atlantic Concept Designed with cruising in mind, the Stingray Atlantic convertible concept features

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