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Forged Crankshaft Small
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There is no doubt that supercharging is one of the best ways to build reliable good horsepower from a street engine. Done the right way you can add 300 horsepower to the engine in your muscle car; while having the dependability to drive it everyday.
Having almost done away with parasitic loss; the efficiency has gone up about 30%; allowing the supercharger to generate more power. We all love horsepower in our hot rods, we love to go faster any way that we can.
If you match up the engine build to the supercharger, and take in to consideration what your trying to do with the car; you may end up with the perfect car for you. A supercharger is one of the greatest things on earth for a muscle car.
You need to match up the camshaft, and heads along with a few other things, such as the right compression ratio of pistons in the about 9:1 range, and forged rather then cast. Make sure that the bottom end of the engine is strong; use a four bolt main block.
Street supercharging can provide you with years of great driving enjoyment. You should always use a forged steel crankshaft when building a supercharged engine. Make sure that you buy carburetors that are specially built for a supercharger engine.
When supercharging a V8 engine; you don't need to push major boost to develop the power. About 7.5 - 9 pounds will work for the street with most street superchargers. This should develop all the power that you need, while still being able to use pump gas.
If your going to use a fuel injection rather then carburetors, you will need to match the fuel injectors to your camshaft and heads. It's imperative that they spray just the right amount of fuel; or you could lose some of the power that your trying so hard to build.
Also when street supercharging timing is of the utmost importance to building power. The camshaft that you buy should come with a cam card; this car will tell you what the optimum timing is for that camshaft, if you do everything just right your car will be a beast of the street.
Rather you use a carburetor, or fuel injection you should make 100% sure that your air to fuel ratios are set correctly. The aim of setting these is to get the fuel mixture as lean as possible, without burning your pistons; this is the optimum setting for making mass power from your engine.
Make sure that your supercharger drive speed is over driven, or under driven right for your application. Obviously if your trying to generate power, you should over drive the supercharger. I usually recommend 8 - 10% for street engines.
This means that the supercharger would spin 8 - 10% faster then the crankshaft speed of the engine. You should talk to the person who's building your engine to figure out what you want though. Always consult with a high performance engine builder when you install a street supercharger.
This is just a few tips; it's not meant to make a you an authority on superchargers. If they are installed wrong; the damage to your engine will be massive, do yourself a favor, and read up on it a bit before your attempt to install a street supercharger.
Their is noting hard about it, all you have to do is pay attention, and make sure that it's done right. Make sure that you spend a lot of time when you install the distributor; an intake back fire can ruin your engine if the pop off valve malfunctions.
Take all of these things in to consideration when you build your engine, and everything should go fine. This is far from everything; but it's enough to get the job done. Take your time to build it right, and your street supercharger should do everything your want it to.
I've been in the automotive business for about 20 or 25 years, I have worked in all facets of the industry, from parts to restoration, all different makes and models, I just want to keep people interested in the old cars because it's where my heart is.
Collector Car Market Report: 1969 Chevrolet Camaro Z28
The 1969 Chevrolet Camaro Z28 market has softened significantly in the last 12-18 months. The global recession is being felt in the collector car market. A few years ago a 1969 Camaro Z28, any Camaro really, looked to be a rocketship investment, regularly reaching six-figure bids. Now, good to great examples can be had for between $40-$60k.
That said, first generation Camaros have a lot going for them that will always keep them desireable. For one, they are handsome machines, well-proportioned with aggressive muscle car bodywork sure to turns heads.
Then there's the legendary Chevy small block V8 rumble. From ChevyHiPerformance.com, "The 302 Z28 engine is the smallest V-8 ever installed in a Camaro to date. It is also the only engine available new in any '67-69 Z28. Based on a 4.00-inch bore and a 3.00-inch stroke, the little engine made lots of power above 5,000 rpm and very little below. This engine's 290hp rating was very underrated. In stock trim, actual power was in the mid-300hp range. These engines were designed specifically to compete in SCCA road racing and came with a huge resume of hardcore race parts: a Holley 800-cfm carburetor, big-runner aluminum intake manifold, 2.02 heads, a high-lift mechanical camshaft (0.485-inch lift), 11:1 compression, full-floating wrist pins, a forged crankshaft, and more. Because the engine did not produce much torque and had such high rpm capability beyond 7,000 rpm, 302 Z28s were only offered with four-speed transmission and were not available with air conditioning. Chevrolet also sold several cross-ram-intake setups (two staggered four-barrel Holley carburetors) and special race camshafts for the early Z28s that helped the 302 gain even more high-rpm power. With some modifications these engines would easily produce power well above 400 horses (at very high rpm)."
To keep your car burning rubber now and into the future, aftermarket, NOS, and factory-authorized reproduction parts are plentiful. The first generation Camaro is probably one of the easiest cars to keep on the road out there.
Perhaps the most important thing to look out for when shopping is rust, which can be hiding just about anywhere. Don't assume the owner has been vigilant. Dig deep to prove it for yourself.
Besides that, make sure the car is original and not a clone, unless you want a clone, which can save you thousands of dollars for 90% of the fun. Also, these are not refined luxury automobiles and will always squeak and rattle.
Whether you're a die-hard Camaro disciple or just want a great muscle car, first generation Camaros are easy to fix, to restore to original or to customize to your heart's content.
About the Author
A lifelong car enthusiast, Chris Lydiksen founded CarPictures.com, in 1998 to create an online archive that contains at least one picture of every car ever produced in the history of this planet. Chris also follows the collector car market closely, and launched CarAuctionWatch.com to help collectors and enthusiasts see what their dream cars are running for.
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