You need around 380RWKW to get a 20 to get scrappy in second. I know as I have one. Now getting a 1.8tonne wagon to dothat take money, I know Ive done it. I did teh research. I built a motor that will take the punishment.
You will need:
Turbos, N1, GrpA or better
Big afms
Big cooler
Oil cooler
Big radiator
N1 oil and water pumps
Forged pistons
Forged rods
Cams
Cam gears
Injectors (i did the rail too)
Big pumps
Computer
Then you have the labour.
Oh, and the big clutch.
I did the exhaust manifolds whicle I was at it, and the head, because I wanted it done right.
There you go, add that up.