water injection to overcome high compression ratio

[sunnysidebb]

Hi all,

Been trying to find a way of running more than 6 psi boost on a standard Porsche 964 engine without using lower CR pistons, which is not going to happen.
I take it water injection tuned to the ecu would allow more boost hence more power.
The engine will be going into a split VW camper.
The figures are:
3.6 flat 6 engine standard.
Motec Wide band fully sequential ECU.
TCP supercharger, with 10 psi boost or more??? if not it will be standard 6psi.
Water to air IC
Sports exhaust with no cats.
Power wanted more than 400 hp if I can get around the compression Ratio.
Frank.