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SportTrac Discussion
Engine & Drivetrain
Final effective gear ratio.
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<blockquote data-quote="Richard L" data-source="post: 1030333" data-attributes="member: 52972"><p>A direct drive (pulley drive) blower will continue to build boost, and increase with engine RPM. Typically this is controlled by the crank/blower pulley size ratios.</p><p></p><p></p><p></p><p>You cannot prevent the blower from creating boost except with a blow-off valve that limits the maximum boost pressure. I would suggest looking for a WOT (wide open throttle) boost control that only allows boost pressure when you have the throttle wide open.</p><p></p><p></p><p></p><p>I am more familiar with Turbocharges but I would assume that there are similar options for blowers.</p><p></p><p></p><p></p><p>Like Todd Z said, you need to understand the math to get the boost to kick in at specific engine RPMs when you want it and not kick in when you don't need it.</p><p></p><p></p><p></p><p>...Rich</p></blockquote><p></p>
[QUOTE="Richard L, post: 1030333, member: 52972"] A direct drive (pulley drive) blower will continue to build boost, and increase with engine RPM. Typically this is controlled by the crank/blower pulley size ratios. You cannot prevent the blower from creating boost except with a blow-off valve that limits the maximum boost pressure. I would suggest looking for a WOT (wide open throttle) boost control that only allows boost pressure when you have the throttle wide open. I am more familiar with Turbocharges but I would assume that there are similar options for blowers. Like Todd Z said, you need to understand the math to get the boost to kick in at specific engine RPMs when you want it and not kick in when you don't need it. ...Rich [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Final effective gear ratio.
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