Engine overhaul, maybe more

[massier1993]

Good evening,

Just got myself a 85' Coupe Quattro non-turbo, it's at 205k on the clock, so I'd like to give the engine a good going over. Now I've been researching how much power you can get from these motors (still unsure on the answer). But I've been looking into big valves, cams, manifolds and intake, and maybe forging for adding a turbo later! I'm abit unsure what I'm wanting at the moment!

So my questions are;

If I go and stay Naturally aspirated, what is the highest, but safest HP achievable, and can someone list the modifications and where to go...

If I fully forge and turbo to 350-400HP, who is the best person/company to go to for this, and what sort of final cost is it? I'm used to turboing Honda engines so no idea on Audi costs.