Problem with rev, d24tic..

[tyrzo]

Hello!

I have a small issue, or maybe I should say speculation about my d24tic.
When im revving it above 2~2,5k rpm it goes slow down to the idle until it passes down under 2k again.

The injectionpump is adjusted so it should put in more diesel, so it smokes a little bit. But the thing is that almost every other d24 that also has their pump modified like mine and even more but don't have this rpm struggle like i have

Does anybody have an idea of something that needs to be fixed/renovated or is it invidually up to every d24 of how much extra fuel they can take?

Oh, and so no one misunderstands I want the car to roll coal.


Best regards,