TwinTurbo.NET: Nissan 300ZX forum - the cc's were same for the old and new style injectors
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Subject the cc's were same for the old and new style injectors
     
Posted by Chickan on April 26, 2012 at 7:59 PM
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In Reply To Ok guys. 90-92 injectors vs 93 and up. posted by bpm333s on April 26, 2012 at 06:44 PM
     
Message but the connector is different. Old style injector connectors are square corners and uses a metal [ bracket to hold the connector on to the injector. New style have rounded corners and use a push release, similar to the coil pack connectors.

Old style tend to fail more, though the cause is debated (ethanol in fuel, always +12v, etc.)

If you are replacing all of them, it is worth going to the new style, though you will need a new fuel rail, or an adapter. Search in classifieds, they are often for sale.

As for injector size, for a TT the stock is 370cc. Roughly 1cc = 1hp max, so it is common to upgrade to 555cc or similar sized injectors for a normal build. If you go with larger injectors, you need to have the ECU reprogrammed for them, or else your car will not run.

     
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