hi all please can you help, I started my 300 zx fair lady drove down the road and park up and noticed water pouring out from under car drivers side, I have since topped it back up and drove back and water has no sign if leaking again please any surgestions.

Was the puddle near the front or middle of engine bay

it was around middle of engine bay.

Well if you can't see any leaks from around the radiator or anything at the front, it may be a case of jacking the car up to have a better look

Check turbo water feed pipe, when mine split it only leaked once the engine was switched off

as silly as it sounds, i had this but could not find any location of a leak, turned out after heavy rain, it was holding on top of the plastic engine shield.

Check turbo water feed pipe, when mine split it only leaked once the engine was switched off

 

I've got that exact problem at the moment. Doesn't leak while driving, only after the engine is off and the turbo timer has run down