can someone clue me in on a "turbo 90a" i kno nothing about it and theres this z around me and he says he has a turbo90a motor and it runs 13 psi with a intercooler but i might buy this car and i have the slightest idea what anyhtign about that engine is pleeeeeeeeease help

thanks

also the hp 1/4 times anythign i can use thank you for your time

Hi Johnny,

I think the owner is referring to a P90A head , it is a turbo head for the early 280zx's (1981-1982).

Go to the cylinder head page on this site:

Datsun Z garage

Further reading here:

Datsun Workshop