Dilligas Posted January 1, 2009 Share Posted January 1, 2009 I'm building a motor for my '77 280. F54 block w/flat top pistons, a P79 or N47 head (any pros and cons on the head would be great), 60mm tb with a matched bore N47 intake, .490 280 duration cam, headers and a Palnet rail. Now, upon searching I have found out that my stock injectors won't support the setup nor will the stock ecu. Correct? I also found that 280zx turbo injectors are 260cc. Will an oring style low impedence injector from injectors4u with the same flow rate sufice? I read "LineC" sticky on injectors but is there a formula if you don't know your end horsepower and does compression figure in as well? Quote Link to comment Share on other sites More sharing options...
woldson Posted January 1, 2009 Share Posted January 1, 2009 I'm thinking they will support it. N47 will greatly increase your cr. The cam will perform better with the n47, if I'm correct, due to the higher cr. Get a wide band o2 sensor for tuning. Without a standalone ecu you will need to play a bit. Quote Link to comment Share on other sites More sharing options...
Dilligas Posted January 1, 2009 Author Share Posted January 1, 2009 thanks for the input. I need to "do time" in the engine management forum to figure out which one to go with and tuning procedures. Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 11, 2009 Share Posted January 11, 2009 Six 260cc/min injectors will flow plenty for that setup Quote Link to comment Share on other sites More sharing options...
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