Small parts have a big impact on engine performance. For example, a good set of lifters will deliver consistent valve timing and maximum power with good oil control. To achieve these benefits, however, you need to make sure you follow the proper lifter installation procedure. The topic is important enough that Summit Racing created an entire
Q: I have a 455-cubic-inch Pontiac with a pair of cylinder heads from a 400. The compression ratio is estimated at 9.3:1. The engine was completely rebuilt by a professional engine shop with forged pistons and crank, good valve job, roller tip rockers, double valve springs, etc. Here are some of the components I have: Holley
Think your job involves a lot of stress? It likely pales in comparison to the job of a cylinder head fastener. With peak combustion pressures in excess of 1,500 psi in a high performance engine, the stretching and loading forces on your head bolts are incredible. That’s why you must make sure your head fasteners are in
While SFI specifications are the thing by which most auto racing safety equipment is measured, your helmet is a different animal. Helmets are rated by the Snell Memorial Foundation, and in most instances, a helmet’s Snell specification will dictate whether it is suitable for a particular racing application, or allowed by a motorsports sanctioning body.
NORWALK, OH — We feel a little bad saying and thinking it, but it doesn’t make it less true: Classic American muscle cars are amazing to look at, but not always fun to drive. We’ve been spoiled by 50-ish years of technological advancement in suspension and steering performance, creature comforts like air conditioning, audio quality while blasting
So far, our All About Stall series has focused on engine setup and its effect on torque converter stall speed selection. We’ve covered the importance of things like camshaft selection, engine operating rpm, and even exhaust backpressure. Another key part of the equation, according to ACC Performance president and CEO Nelson Gill, is vehicle setup. Vehicle weight, gear
The kids are out of school and racing season is in full swing. Whether you’re RVing across the country, trailering boats or off-road vehicles to your natural playground of choice, or hauling your race car to and from the track, towing season has officially arrived. It seems obvious enough, but effective side view mirrors are
Q: I have a 1993 5.0L Mustang LX that I have modified over the last year. I’d like to know what you think about the changes I have made, and if there is anything else you recommend. Please keep in mind that the car will remain naturally aspirated — no blowers or nitrous. It will basically be a
We won’t say fires are common at the race track, but they do happen. A few of us have already witnessed motorsports fires this year, so we’ve decided to revisit the topic of onboard fire suppression systems. Is an onboard suppression system an added expense? Yes. Can you really afford NOT to have one in your car? That’s
[portfolio_slideshow id=54237] How much horsepower does it make? How much torque does it put out? These are usually the first questions enthusiasts ask when it comes to buying parts for his/her street machine or race car. The reality is, however, that many of the parts we need for these cars don’t offer any improvement in horsepower
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