nategdizzle Posted September 8, 2006 Share Posted September 8, 2006 do i need new springs if i swap my n42 cam for a p90? my n42 cam got a couple of small dings on the lobes somehow so i think i better change it out for as cheap as i can Quote Link to comment Share on other sites More sharing options...
zeiss150 Posted September 8, 2006 Share Posted September 8, 2006 I believe that the stock springs will be fine but you need to have the rockers and cam re-surfaced! If you don't the they will wear eachother out in no time flat. good luck! Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 10, 2006 Share Posted September 10, 2006 I believe that the stock springs will be fine but you need to have the rockers and cam re-surfaced! If you don't the they will wear eachother out in no time flat. good luck! This has not been my experience. Here is a thread with people expressing all sides of the argument: http://forums.hybridz.org/showthread.php?t=108404 Quote Link to comment Share on other sites More sharing options...
JMortensen Posted September 10, 2006 Share Posted September 10, 2006 One thing you might look out for is the timing on the P90 cam. I think they're 4 degrees advanced IIRC, which means you'll run out of cam at about 5000 rpm. You can advance the cam with the holes in the cam sprocket. You might consider having one or the other reground. Quote Link to comment Share on other sites More sharing options...
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