Thumper Posted October 17, 2005 Share Posted October 17, 2005 I'm thinking about turboing an n/a 280zx. I have a p90a head and a p79 head. I will use the p90a head because of the exhaust ports. I have a p79 (F) cam and a P90a ( cam. I have read that the p79 cam has more lift and duration. I also know that too much duration on a turbo is bad. So my question is the p79 cam better than the p90a cam for 12psi 8.7:1 comp ratio engine. Thanks Cam specs can be found here. http://www.atlanticz.ca/zclub/techtips/cam/index.htm Quote Link to comment Share on other sites More sharing options...
spork Posted October 17, 2005 Share Posted October 17, 2005 If that p90a head hasn't been converted to solid lifters, you're going to want to use the correct cam that came with it. It has different ramps on each lobe to work correctly with the hydraulic lifters. Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 18, 2005 Share Posted October 18, 2005 I also know that too much duration on a turbo is bad. Cam specs can be found here. http://www.atlanticz.ca/zclub/techtips/cam/index.htm Duration is good, close lober centers and overlap are bad. I run the A cam, more intake lift. Out of your 2 options I would run the P79 cam. Quote Link to comment Share on other sites More sharing options...
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