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SAC00 hopefully the LB7's savior

THEFERMANATOR

FRANKENBURBAN
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Anybody who owns an LB7 knows about the injectors reputation. Many may have heard about the SAC nozzles that many have been switching to with excellent results. Until now though the smallest size you could get was 45 overs which required a retune, well not anymore. S&S in the next couple of weeks will be shipping out there all new SAC00 nozzles. They use the SAC nozzle design(the style used on LLY+) vs the stock VCO which seals 1 hole instead of 7 like stock. This has proven to be a much more robust/reliable design. And now with the SAC00, no retune is required. They have been designed and engineered to match stock flow, but do it with the SAC nozzle design. They're even CARB certified and legal in all 50 states.

And for those that don't know, VCO stands for valve covering orifice. This is where the pintle valve that seals the injector off seals off the actual injector orifices. This design was commonly used on injectors with actual injector pumps with a single orifice, but this is a hortible design for an injector with multiple orifices in a common rail system because the valve has to seal all the orifices together at the same time. If even 1 doesn't seal, you get a stream pf high pressure diesel pouring in the whole time its running. With a sac design, the injector orifices all tie into a small pocket, and then there is only 1 sealing point for the small pocket. This means there is only 1 sealing point in a tapered seat vs 7 sealing points where they have to seal against a flat face. This means you have a much more robust design with fewer failure points.
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Exciting news! Especially since it seems my project LB7 has had the injectors go bad just sitting. :/ Are they competitive cost wise?
 
They're a bit more money than stockers, but appear to be less than 45 overs coming in under $2500 for a set. Hopefully the price will come down after the new wears off like the price of 45 over sacs did.
 
And they're showing up for sale now online. These injectors COULD make the LB7's injectors better than the newer models. Bosch fixxed basically everything in the LB7's except for the nozzles simply because the VCO design couldn't be improved upon, but the SAC nozzles take care of this. LLY/LBZ/&LMM routinely suffer from high return rates from worn ball seats, but the LB7's have hardened and chromed ball seats that don't seem to fail in that manner. This new nozzle really could change the game for LB7's.

 
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