Mercedes injector Nozzels with shimmed injectors & d8a

[CJ_Derv]

I've heard from a few sources that the Merc IDI nozzles aren't a perfect match for the Comet V precups our engines use... People have used them and have found the precups crack quicker... Remember that Mercedes used their own design precups, so I wouldnt be surprised if they specified their own design... Bosch don't release any of the OEM specifications which is why its so difficult half the time..

There's other nozzles which are more suited IMHO... Although injector nozzles on IDI engines are not really as important... 200+Hp has been made on OEM nozzles at OEM pressures...

Would i be correct in saying DVS' would be a better modification rather than nozzles