Today i was driving normal speed at 100kmh and a viper passed me so i pushed it in 4 th gear and try to see if i could keep up , i knew i couldnt but i had to try . Then i got to around 160 kmh and i strated loosing power like it reached its limit or something and then the motor died and a HUGE cloud of white smoke was coming out the back . I started the car again big cloud again . So i called the towing , had CAA , while i was waiting for the tow i checked the engine the breather spited oil on the hood a little and it seems like im loosing coolant around the water pump but everything is brand new not even rebuild ? i dont get it . Can it be my water pump or its a crankcase issue ?
What can it be ill have to go back to my freinds place to check compression but im sure its fine .
Oh sorry its a 78 280Z with a rebuild L28 with flat top pistons and MSA camshaft .