For my next project i want to build an engine for my rst, a local guy reckons he can make 1.8 zvhs for penuts which would be ok if my current one popd and i needed a replacement but i would like to go to a 2ltr zvh instead, thing is apart from the extra torque youd get having lookd into them 2ltr zvhs dont seem that impressive.

For example a 2zvh seems to be make around the 240 bhp mark which would be good but thats at like 17psi but a 1.6 cvh if running sweet can make simular bhp at just a few more psi more.

I dont see how they are suposably 180bhp at realy low boost and only 40bhp more for an extra 12psi.

Can someone explain these engines to me a bit better ther pros and cons.

Thanks Paul.