Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re answering some important questions about swapping gears. E.B . • Lake Ronkonkonia, NY Q: I have a 1987 Pontiac Trans Am with a 305 TPI engine, a TH-700R-4 transmission, and 2.73 rear axle gears. I want to upgrade to 3.42
[portfolio_slideshow id=19010] It’s no big secret that big horsepower means increased heat. But high performance engines, like other internal combustion powerplants, aren’t really all that efficient. Roughly one-half of the total heat energy produced by an engine is not put to work, but simply transferred back to the cooling system. If your cooling system—especially your
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re answering questions about timing for small block Chevy engines. W.H . • Temple, TX Q: Which way do you turn the distributor on a small block Chevy to advance the timing? We’re having a family debate—I say one way,
In the automotive plumbing world, there a few different ways to measure thread size on fittings and hoses. The most popular thread measurements are AN and NPT. What’s the difference between the two? How does an AN thread convert to a “plain English” fractional value? How do the two measurements relate to one another? Those
[portfolio_slideshow id=18712] Modern V6 Mustangs (2011-2013) are 150 pounds lighter than their V8 counterparts, making them more agile than the heavier V8 models which have 15 percent more moving engine parts. In standard trim, these 3.7-liter V6-powered six-speeds are equipped with a clutch that transmits 300 horsepower and 280 foot-pounds of torque. But what if you upgraded
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re taming an old race engine for street use. R.F . • Morgan, GA Q: I plan to install the stroker motor from my former race car into my recently purchased 1970 Camaro. The engine is a 4-bolt main, GM
Holley four-barrel carburetors are probably the most common high performance fuel mixing devices on the planet. Given the sheer numbers of carburetors made since the 1950s, you know they work. If there is a fly in the Holley ointment, it’s setting up the idle. Since Holleys are so easy to adjust, it’s also easy to
If you’re making custom modifications to your suspension, it may require you to use different shocks than the ones that came stock from the factory. Watch this short video and learn how to find the compressed and extended length measurements that will help you select a set of shocks that fit perfectly.
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. Driving less doesn’t have to be your reaction to rising gas prices, according to the Car Care Council. While consumers can’t control the
Not unlike tire sizing for quads and side by sides, wheel sizing is simple if you know what all the numbers mean. Thanks to the gang at ITP Tires, you’ll never again have to wonder what you’re looking at when sizing wheels for your powersports machine. All of those numbers mean something you should know. The
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