Guest Pete Z Racing Posted March 21, 2006 Share Posted March 21, 2006 Zer's I get this question on a regular basis "how much can I safely port my head?" Below are pictures of a P-90 head that I cut to help answer the question. Have a great day! Pete Adrenalin is 100+M.P.H. 100 feet before a 90 degree turn! 366 H.P. 418 Torque 6cyl @ 14 P.S.I. 90 Octane <http://www.cardomain.com/ride/2116389> Quote Link to comment Share on other sites More sharing options...
Drax240z Posted March 21, 2006 Share Posted March 21, 2006 Nice pete, don't suppose you have any port closeups that you could throw a tape measure in for some measureable scale? Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted March 21, 2006 Share Posted March 21, 2006 What about the area under the valve, since that is where most of the improvement is usually found in airflow? Quote Link to comment Share on other sites More sharing options...
73ZCAR Posted March 21, 2006 Share Posted March 21, 2006 Great pics Pete. As the Dr. stated pics from around the valves in the "bowl" areas could be very helpful also. thanks, Mike. Quote Link to comment Share on other sites More sharing options...
TheNeedForZ Posted March 22, 2006 Share Posted March 22, 2006 Great effort! Would like to see more pics! Quote Link to comment Share on other sites More sharing options...
Mack Posted March 22, 2006 Share Posted March 22, 2006 Nice pics, reminds me of this thread. P90 head porting realizations. now that we have a look at how thick the walls are, AND a cross ssectional of the length of the runner, now we can get some real porting done ....... Quote Link to comment Share on other sites More sharing options...
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