Some years ago, I did some tuning on my CAT engine, with a lot of injection shop help, and one improvement was a different IP with a more aggressive cam = higher injection rate, which was developed for lower emissions. Am I clueless for thinking that Bosch/M-B did the same for the same result?

I understand that same hp = same flow, just at lower RPM so probably same lift and definately the same 5.5mm elements. Timing device is the same too, so I'm also wondering if the timing is the same in the cam grind.

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Gone to the dark side

- Jeff