Tech

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 troubleshooting a Pontiac Trans Am Tuned Port Injection engine that’s experiencing both idle and off-idle stumbling. Q: I have a 1988 Pontiac Trans Am GTA with the 350 engine. I installed an

I have a small-block, four-speed ’71 Camaro that I race in autocross. How much horsepower do the following items use on a small-block at 6,000 rpm? Even a guesstimate would be great. Thanks. Flex fan – 18-inch diameter Alternator Water pump Power steering pump Exhaust 2 1/2-inch exhaust tubing with Flowmasters TKO 600 transmission G.L. I have

Editor’s Note: Mike Mavrigian must do nothing but build engines and write stories about them. We have visions of his shop, Birchwood Automotive, set deep in the woods with Mavrigian keeping little forest creatures for friends. His latest engine build is a 427—well, it’s a hybrid of sorts that blends the best of the Gen

Ignition systems have come a long way since the early days of the automobile. From early points-style setups to modern coil-on-plug configurations, the ignition system has evolved. There are five primary types of ignition systems. Each has advantages and disadvantages. We turned to our friends at Autolite to explain what each ignition system type brings

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 troubleshooting an engine that’s running too hot. Q: I have a 1955 Chevy two-door sedan. I have switched engines in the car a number of times, and it currently has a 327

  I have a ’64 El Camino that has been converted to front discs using 1970 Chevelle parts. I was told that I should change the master cylinder as well, so I bought a dual reservoir power brake master thinking that would be better, even though my car does not have the power brake booster.

Since the GM LS is such a popular engine series, LS-compatible parts are common and easy to find. Which means, if you’re using 1992-97 LT1-style heads on your engine, you may find more spring options if you look for valve springs designed for the LS. Those different spring types however, are not compatible. Fortunately, the

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 two-chamber vs. three-chamber mufflers, and which produces the loudest exhaust notes. Q: I have a 1989 Ford Mustang GT. The car has some upgrades like underdrive pulleys, ignition and coil, and

  I am making plans for an LS-swapped Chevelle with all kinds of cool parts, so I’m building the car in my head. I’ve seen lots of people use that Corvette factory fuel pressure regulator and fuel filter in their cars and I got to wondering why I should place the regulator up front near

Editor’s Note: Author Jeff Behuniak is with Canton Racing Products, a company that specializes in manufacturing oiling and cooling products for racing applications, including oil pans. … A lot of people assume that an oil pan is just an oil pan. The assumption is that it holds oil and that’s it. That simple and cheap is