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Message: [QUOTE="superpsd, post: 1395910, member: 15821"] A hybrid will inject more fuel per given stroke as said above than an A code with the 6.0mm plunger. So take a 175cc A code a larger nozzle say 200%. Then take a 250cc hybrid with 200% nozzle. Both injectors are going to actuate faster due to the reduced restriction. Now on a derated tune that's only calling for a maximum PW to dump say no more than 140cc of fuel. The A code now stroking faster has to stroke much further to inject its 140cc vs the hybrid which of course does not have to stroke that far. The pressure drop above the IP is going to be much less due to the limited shorter stroke. The only downfall to a hybrid is a reduced hydraulic ratio but can be compensated for in the tuning. The hybrids got a bad rap it seems in the past for being Smokey hybrids but I'm willing to bet a lot of those injectors were fine but we're lacking proper tuning to make them perform. The biggest hurdle with hybrids is they cost more up front and tuning is more critical to maintain drivability and smoke control. If I had another 7.3 I would love to take my AA codes and turn them into some hybrids using the larger BI code P&B spill port welded. And retain the B code nozzle springs to improve atomization for a daily driven road warrior. Also if one had unlimited pockets experimenting with custom P&Be would be fun something maybe in the middle like a 6.5mm plunger. Would likely be a waste of time and machining however. [/QUOTE]

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