Stock injectors are about 305 cc/min, or 29lb/min. I am in the process of changing out a bunch of things on my BT and I am going to run a new set of 30lb/min (315cc/min) with the new type III design tip. When I had the BT dyno'd at Miller two years ago, it was running a touch on the lean side so I opted for slightly larger injectors when it came time to replacing them.
My friend ran the new type III design injectors (and 19lb/min instead of 17 lb/min) in his E31 and noticed slightly better power but much better fuel economy. I think the new design makes a big difference - I'm looking forward to seeing if there is one when I get the BT on the road again in the spring.
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The (mechanical) Kids:
1991 E31 850i
1992 E32 750il CSI
1991 E32 B12 5.0, #259
1995 E34 B10 3.0 Allrad, #52
1991 E34 B10 3.5, #396
1991 E34 B10 Biturbo, #177
1993 E34 525i /w aftermarket turbo
1992 E34 M5 3.6
1997 E39 528i
2000 E39 540i Touring
1992 Mercedes 600sel
1993 Mercedes s600 Lorinser
2003 VW Jetta TDI (dd)
2002 Ford Excursion 7.3L Turbodiesel
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