06/08/07

Do have an article on the correct installation of a pan-evac system (angle of pipe in headers)in a drag race application? Bill Shade Calgary, Alberta

Sorry, no article but it's pretty simple. Install the pipes at as close to a 45 degree angle as possible aiming the part that goes inside the collector rearward. The end that goes in the collector is cut at an angle. Turn this so that the open part of the cut is facing rearwards. This makes a negative pressure zone and helps draw out the gases from the engine.

Hope this helps.

Jay Roeder

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