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Boost doesn't kill motors, Horse power does. 10 pounds of boost from a 14g turbo off a DSM, and a 73mm turbo would be worlds apart.
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'89 Mustang Gt 5.0 HO
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Horsepower doesn't kill anything because it's nothing but a math equation of Torque X RPM /5252 thats it. It's a measurememt of power and not the power itself. Torque is the real action and boost increases Cylinder pressure dramaticly and that places a lot more pressure on everything. With a turbo as the engine speed goes up the turbo speed follows suit and cyl pressure gets extremly high and thats when blocks flex, gaskets blow and blocks split and the more cyl pressure the more torque but often times the parts don't hold up to the pressuse created in the the cylinder and things go bad.
One reason that a lot of these Dyno Queen twin Turbo 2.0 four bangers lay down 750 hp is that they spin the rollers on the dyno without actually having to push a car and once they get the rollers moving they spin those things up to 11,000 rpm and it makes big numbers. In the real world where it has to actaully has to push a car through the wind and from a dead stop it turns out to be a differant story when that dyno queen can't bust into the 11's. Horsepower doesn't mean Crapola. The only thing it does is give people and idea of power. Torque moves the car and cubic inches and cyl pressure create torque. Excessive cyl pressure, excessive heat and excessive rpm is what kills engines.
Last edited by Portmaster; 02-18-2009 at 10:56 AM.
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