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Message: <blockquote data-quote="evo5755" data-source="post: 3473258" data-attributes="member: 1644">Very intereting topic again...hehehe..As human nature, everyone wants to go faster. Everyone wants to mod their car so that they can be faster. And of course BOT is the fastest and easiest way to achieve impressive results. From my opinion, NA car should be left it to be NA. BOT to the engine is not a good idea. If want to make it faster, do it the NA way, by increasing the combustion power at atmospheric pressure. Engine Designers with engine engineers does so much extensive work of R&D for the engine. In fact each and every part of the car has gone through R&D and also material study. I know this because i have been dealing with Japanese engineers for car parts which is not the engine, and yet there are so many R&D and considerations and test. When NA engine was designed, it was designed in such a way that the load and the temperature was designed under normal combustion using atmospheric pressure, which we call NA engine. Once you add on turbo, its a design and it addded alot of stress and the greatest enemy HEAT. What you can see the difference on NA and Turbo is injector size, metal gasket, piston, conrod, exhaust, management system, oil squirter and bla bla bla..."Maybe" you will change all the component to make it being able to withstand the boost pressure and heat. i can conclude that most of the BOT people i have seen would not change all of the components. Surely there will be somthing missing ingredient due to lack of parts or fund. What you cant see is the material that was designed for turbo engine is different from NA. They are meant to receive stress and heat. The water cooling system in the engine block, the block thickness, material property, oil pan, engine oil squirter and so on.If you throw in a turbo, there are will be definitely something will be wrong here and there. you try to change everything you can, but no matter what it is still designed by the car engineer to achieve the NA spec. i have seen many people doing BOT. Some have very high horsepower very fast no doubt. But, realiability is not there. Engine overheat, some hoses melt and so on...So my opinion is, for an NA car, it should be left as what it is. Just my 2 cents</blockquote>

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