Originally Posted by
G2RSR
ZVH 2.0, Head flows 143 cfm @ 10
, and no im not giving the port sizes sorry
and for the combustion chamber, you need the right shape pistons.
estimate 500 @ 25 psi with the right turbo, but the 4x4 turbo @ the min as a ported compressor housing
Not sure if I believe you. A standard Zetec doesn't flow anywhere near your 143 cfm @ 10"
45mm intake valve, maybe some creative welding and raising the inlet port - I might think it could be true. But this would be a very $$$$$ cylinder head.
A very custom high duration camshaft would also be required to get the rpm well above 7500 rpm to make anywhere close to 260 HP at 8 psi.
Even so, this would be a record breaking, very high rpm ZVH, and very,very expensive.