Sunday, January 16, 2011

N/A vs BOOST

You see in almost every blog or forum about the question, weather to boost or keep it all motor. So I thought its my turn to talk about what I think of the N/A vs Boost conflict. To help name some pros and cons of both setups, and to maybe help you in your decision of weather to keep it all motor, or put boost to it. I'll start out with the naturally-aspirated end. Probably the main reason for most people to stay n/a is cost. The average car guy might not be able to get the funds needed to not only pay for the motor, but also pay for the boost setup, weather its turbo, procharger, or supercharger. So to just have to pay for the motor being either rebuilt or getting a motor built, would be much cheaper then boost. Another pro to n/a is instant power, no need to wait for boost to kick in to get your peak power. Its all there when you need it, mainly low to med range torque an even high end torque for n/a motors. The weight is also a factor of any car. With no boost setup, you save the weight from all the added material that you would need for boost. An the extra weight of the boost setup is over the wurst part for racing, the front end. Also when building a naturally-aspirated motor, there's no need for a more expensive boost friendly cam, or blow through carburetor, if you stay carburetor that is. Now the pros of the boosted side of things. The three main attractions for any boost setup is the amount of power you can make, an when out of boost, its like running on a low compression n/a car. Till the boost does kick in of course. The third is how easy it is to maintain a boost setup, weather its turbo, procharger, or supercharger. The first of three is the amount of power. You could make the same power using a smaller displacment motor with boost, as a larger all motor engine. That could save you costs from having to go to the larger motor setup. The second is that when your out of boost its like driving an all motor car. Until boost does hit then you better hold on. So your basically driving you car around like its n/a, with low compression. That's when you get the fuel sipping motor, with a lot of power, which is one thing I think every car guy wants. An the third is maintenance of your engine with the boost setup of your choice. I will say that a turbo setup will cost more to not only build, but to maintain. But never the less any boost setup will be more to maintain then a naturally-aspirated motor. With any supercharger or procharger system you just put the pulley with the set psi you want to run, an tune the motor to that boost setting. Knowing that you will always have the same boost an know that the tune is good for that boost setting. Not saying that a turbo is bad for boosting a motor, you just have more to worry about when installing and maintaining the system. All in all, weather to stay naturally-aspirated or boost your car is up to you. You gotta go with the setup that nets you the best performance for your car, an best for you event, weather its autocross, drag, drift, time attack, ect.

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