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Power Strokes
7.3 Aftermarket
injector builders???
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[QUOTE="TARM, post: 1066445, member: 578"] Actually with tuning the size of the injector is gauged more on its top end potential than how low it can be tuned down. Remember these are all computer controlled setups. If a injector can be tuned to only use enough fuel to idle without haze or smoke then you could have it setup to supply no more than stock or hell even under that (just think how little fuel is going thru the injectors at idle) power levels. So really what you want to consider is going forward how much power do you plan to want to make say a couple years down the line ( of course you could always send them back in to be given larger nozzles and more fuel capacity as an option as well). After years around these performance 7.3 I have come to the conclusion that there really only needs to be 2 injector sizes outside of the all out performance 400% nozzles. So lets call these street injectors ( yes I know a number of people run 400% on daily drivers but that is certainly not the norm and comes with a number of compromises that unless you "need" them its not worth it. Street Injectors: A code 160cc 30% nozzle Hybrid 300-350cc 200% nozzle That is it. The 200% these days with the tuning improved vastly over the last 5 yrs are basically as tame as stock when it comes to idle, cruising, towing and daily driver stuff but at the same time can release dragons breath to the tune of upper mid 600 HP if you have everything to support it. The 30% are the perfect injector for the guy that does not want to have to put in a fuel system, a mid to high vol HPOP, etc.. I will say that IMO all these trucks once that are into the 150K mile should have the valve springs replaced as the stocks are quite weak at this point and you are basically at a min increased Tq and cylinder pressures a good deal. Valves kissing the piston face is not a good thing. But other than some modes that should be done even 100% stock power levels those 30% injectors are not going to require all sorts of upgrades. Unless you keep that stock turbo properly wastegated so its not seeing mid 20+ psi boost, even stock injectors with a hot tune can and will eat that turbo for a snack. So honestly that is one area I would plan an upgrade, with the cheapest over all being a 38r, as long as that is where you plan to stop. [/QUOTE]
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