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hp from exhaust ?

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Old 01-28-2003, 02:38 PM
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Default hp from exhaust ?

when a exhaust manuf. claims say 10%hp gain from exhaust does this mean a gain of hp at the flywheel or from the prop shaft ?
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Old 01-28-2003, 02:55 PM
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it means they are full of it!
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Old 01-28-2003, 02:56 PM
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YUP
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Old 01-28-2003, 03:11 PM
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It means that stock manifolds flow crap, and 10% better than crap is still crap. Save the money and buy headers.
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Old 01-28-2003, 06:00 PM
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Don't even waste your money on headers...unless you are changing heads, intakes, carbs and cams at the same time. I learned that valuable lesson. Headers might give you a mile or two per hour for the $3000 to $4,000 you spend per motor. Unless you are ramming a lot more fuel and air into the top of the motor, you don't need to push it out the back any faster. It just doesn't payoff. Once you add the other items however, headers are a necesity.
 
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Old 01-28-2003, 07:29 PM
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Well put Curt!!!
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Old 01-28-2003, 07:38 PM
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Exactly the advice I was given , but a set of Stainless marine manifolds couldn't hurt !!
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Old 01-28-2003, 08:01 PM
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1 mph was'nt worth it but the sound and looks were
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Old 01-28-2003, 08:03 PM
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Louder is better.
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Old 01-28-2003, 08:09 PM
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Loud pipes save lives!
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