"Remanufactured" injectors are marketing flim-flam.
The OE injectors used in the LT5 cannot be disassembled and remanufactured. They can be ultrasonically cleaned, tested hydraulically and electrically then put into a large pool of injectors from which eight primaries and eight secondaries are selected according to their flow rates, but that falls way short of what the automotive industry defines as "remanufactured". A minimum remanufacturing means disassembly, inspection, worn/damaged parts replace then reassembly.
Based on 20+ years of experience with RC Engineering injectors in the LT5 in the '95 I used to own, as well as in other engines in various project cars I owned or still own, I think RC's product is the better choice. Their durability is outstanding. Their flow spreads are typically 1% to 1.5% over a set of 16.
Some prefer Accel, but I have no experience with them. In fact, back around 1997, when the late Jim Van Dorn and I were fooling with aftermarket injectors for 500-hp LT5s, Accel wasn't even selling aftermarket injectors. Based on our testing, we settled on RC Engineering.
If I still owned a ZR-1 and was needing a set of injectors, that's where I'd go for them.
> On 12Jul 2018, at 7:08 AM, Robert Conway <[log in to unmask]> wrote:
> Years ago, my '91 was stumbling under WOT. Removed all injectors and sent them off to be "cleaned". Car seemed better temporarily but problem recurred. Bit the bullet and ordered all new injectors and impact was noticeable. Based on this, would recommend new. Not sure what remanufactured entails but, considering the labor involved, would go with new. By the way, when you have the plenum off, replace the coils and secondary vacuum lines if this has never been done. Doesn't cost much and will be money well spent.
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