General Info about Manifolds
Literally, there are thousands of aftermarket car parts that can be bought in the market coupled with huge number of these items made intentionally to further increase the engine power. And the intake manifold is one of the parts that car enthusiasts would want to upgrade but what stops them is the variety it has in the market. As a matter of fact, it is fairly easy to buy the wrong one and make you feel you have wasted your money.
In order to prevent this from happening, then be sure that you take into consideration the points discussed in the next lines.
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. By considering to replace your car’s stock intake with an aluminum aftermarket part, it will help a lot in shedding weight from the engine for most of the stock intakes are made with heavy cast iron. 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.
Intake manifolds can be divided into two categories and it is either single plane or dual plane, which largely depend on how it’s designed. In single plane intake manifold, it has open plenum which allows four barrels of 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.
Basically, if the engine of your car has mild compression and stock camshaft or if your car has an automatic transmission, stock torque converter and low gear ratio, dual plane intake is going to 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.
All manifolds when installed in your car as an upgrade will surely do awesome things but, you have to ensure that it is the right fit for your car’s engine to fully maximize its benefits.