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Understanding Manifolds

Basically, there are tons of aftermarket car parts you can buy in the market and great number of these items are intentionally made to increase the engine power. One part that a lot of car enthusiasts want to replace is the intake manifold but with so many varieties in the market, making a decision has become difficult. As a matter of fact, it is fairly easy to buy the wrong one and make you feel you have wasted your money.

In the next lines, you are going to learn about the important points to remember which will help you avoid mistakes from happening.

It is without a doubt easy to replace intake manifold with a new one and it can benefit the car in a couple of ways. First of all, majority of the factory intakes are manufactured using heavy cast iron and thus, replacing stock intake with aluminum aftermarket part will surely strip off a lot of weight from your engine. Not just that, you can also choose your intake depending on the power, RPM range of engine, displacement and also, the weight, ratio, rear end. You will be able to improve the car’s performance when all these things combined.

The intake manifolds may be divided in 2 categories either single plane or dual plane, depending on how it is designed. In single plane intake manifold, this has open plenum which enables four barrels of the carburetor to feed the cylinders. Dual plane as the name implies has a split plenum that is separated by a divider wall and allows every side of carburetor to feed four cylinders. As a general rule, the dual plane intakes create better and improved low RPM torque but it is sacrificing upper RPM horsepower. When talking about the single plane intake however, it’s the vice versa of dual plane for it’s more effective on high RPM but not on torque or at minimum moving peak torque to higher RPM.

Generally speaking, if your car’s engine has a mild compression and stock camshaft or if your car has automatic transmission, stock torque converter and low gear ratio, then going for a dual plane intake will be a smart choice. On the other hand, if you have a car that has 4.88 gears, high compression, big roller camshaft and loose converter, then you’d do better investing with a single plane manifold.

Remember that all manifolds when it is installed in the car is a nice upgrade and will do wonderful things but, you must make sure that it is the perfect fit for your engine otherwise, it will be hardly noticeable to see the benefits that it can provide.
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