Does anyone know the actual physical differences between 57 and 58 injectors? I know 58s flow about 20% more. Is it just the tip that is different? How do 58s compare to flowed 57s? I read on another site that one guy preferred flowed 57s. Was wonder the pros and cons.
Thanks
58 vs 57 injectors
Discussion in 'Trucks [ Eighteen Wheelers ]' started by DL550CAT, Oct 19, 2018.
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Oxbow Thanks this.
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Difference of flow is the tip. When comparing a 57/10R0957/10R8501/211-3023 vs a 58/10R0958/10R8502/211-3024 the body group is same(includes plunger) 140-9827, same 154-6006 tappet group, same 170-5234 control valve group, same return spring 225-8492, same o-rings, etc. The difference is the nozzles. 57 uses 117-0484 nozzle group and 58 uses a 117-1149 nozzle group. If you break down each nozzle they use same dowels, main body, VOP spacers, stops, springs, and case. Only difference is tips, 57 uses a 235-2905 and 58 uses a 222-6662.
This being said, a flowed 57 tip (enlarged orfices and possible ground pintle) can flow the same or more than a stock 58. Possible advantage of a flowed set of 57's would be a set of injectors that all flow the same for a smoother more balanced engine.Oxbow, SAR, snowman_w900 and 3 others Thank this. -
Kw Owners Club and Oxbow Thank this.
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I want to put 58s in my 04 mbn,no other mods except
Flash to a different ecm file.Will this work alrite ? -
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