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Old 01-02-2014, 05:27 PM   #5
dan0617
 
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Drives: 2011 Inferno Orange SS Convertible
Join Date: Apr 2012
Location: Tyrone, PA
Posts: 640
Quote:
Originally Posted by kj217 View Post
i didn't use check valves coz its always vacuum right behind TB in positive displacement blower setups (e.g. magna, whipple,, etc),, boost only show up right under the roots/screws,, eventhough it might get pressurized instantly upon closed throttle right after boost/wot,,
i just thought ventilation will always flow in one direction,,
was i wrong?
I'm not sure on the PD blowers and which ports. I do know even if it is vac only, there is no vac at WOT. The only one that will have any pull at WOT is the one going to the air cleaner and that is a small line and not a hard pull, to evac the entire crankcase when at WOT on boost.
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2011 SS IOM Vert. ECS Vortech 13+ psi, Water/Meth, ID850’s, ZL1 pump with MSD Voltage Booster, 2800 stall, LT headers, Drag radials, Drag alignment, Cradle Bushings. A million other supporting mods. Tuned by Ted.
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