High Port to Low Port Swap, Cams

Ben Fenner fenfam at sc.rr.com
Sun Jan 29 18:10:13 CST 2012


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


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