I know 617A is a diferent animal , with piston lubrification, special valves, etc...The question is that here government rules are very complex about engine changes. Other hand i do not want to change datacard engine . My idea is basicly instal a garret or kkk and stay with M RSF pump only increasing about 20 or 30% IP delivery. That will give me the little extra powe i need without high EGRs troubles as at high speeds and high offroad rpms moisture is going to be poor .

Troubles?

If they have a problem with changing engines, why wouldn't they have a problem with adding a turbo too?

Anyways...

A little power (10-20%) won't significantly hurt the lifespan. The turbo engines only have 40% more power and if you've read the SAE paper you know what troubles MB had just to get that.

What they want to see is if the engine has correct number stamped on the block . They really dont know if its a turbo engine or not.

Thanks