From fenfam at sc.rr.com Sun Jan 29 18:10:13 2012 From: fenfam at sc.rr.com (Ben Fenner) Date: Sun, 29 Jan 2012 19:10:13 -0500 Subject: High Port to Low Port Swap, Cams In-Reply-To: <47D3E976B421C14A85FBE932457E63D30B4D95DF@ascfsmail.ascnt.edu> References: <47D3E976B421C14A85FBE932457E63D30B4D95DF@ascfsmail.ascnt.edu> Message-ID: <4F25DFE5.2030101@sc.rr.com> The intake cam on the high port is an upgrade, and is an extremely simple swap. Nothing else has to be done to compensate or make it work. No sensors, no nothing. Just make sure you keep the mechanical timing correct and tighten down the cam caps slowly, carefully, and only a little bit on each cam cap at a time to make sure the cam does not snap on you. Here's more info on cam lifts. http://www.sr20-forum.com/information-library/42891-cam-lift-duration-comparison-thread.html And here's actual measurements and pictures I've done on a low port cam versus a high port cam. http://www.sr20-forum.com/turbo/12333-nissan-cam-comparison-w10-w11-owners-look-3.html#post252251 -Ben Fenner 1994 Black SE-R (turbo) Kloth, Gerald wrote: > Anyone of you smart folks have anything to add? > > Grover