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SportTrac Discussion
Engine & Drivetrain
Zabteck trottlebody
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<blockquote data-quote="EddieS&#039;04" data-source="post: 758086" data-attributes="member: 61136"><p>Keith, the more exhaust and the faster you can relieve it from the engine, means a the more of a fresh air fuel mix the cylinder will pull in on the next stroke. So there is gain. As far as pulling in more air. There is gain also up to the point of how much air with fuel the charge stroke can pull in. There is no wasted air in the cylinder. It will only pull in what it is capable of. In most cases the factory intake and exhaust doesnt use the full capability of the engines displacment.</p><p></p><p>The other side of this is forced induction. Supercharge or tubocharge, where you force a higher fuel air charge into the cylinder.</p><p></p><p>You wont make a super truck from intake and exhaust change by it self. But it does help.</p></blockquote><p></p>
[QUOTE="EddieS'04, post: 758086, member: 61136"] Keith, the more exhaust and the faster you can relieve it from the engine, means a the more of a fresh air fuel mix the cylinder will pull in on the next stroke. So there is gain. As far as pulling in more air. There is gain also up to the point of how much air with fuel the charge stroke can pull in. There is no wasted air in the cylinder. It will only pull in what it is capable of. In most cases the factory intake and exhaust doesnt use the full capability of the engines displacment. The other side of this is forced induction. Supercharge or tubocharge, where you force a higher fuel air charge into the cylinder. You wont make a super truck from intake and exhaust change by it self. But it does help. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Zabteck trottlebody
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