The Heater Core is behind the dashboard and is very difficult to replace. The entire dashboard must be removed to facillitate repair. There is another web page which I have that details the dash removal procedure. As soon as I can I will submit the procedure to this website.
yes
how to wire a 1984 300z fuel injector
Automatic Transmission fluid
aproximatly 15 to 20mpg, a little less then the n/a engine.
1003
pump and motor are up under front clip on passenger side
That engine has an EFI (Electronic Fuel Injection) system. There is no adjustment.
First look at the manufacturing date on the rear of the driver's door; example 7/87 you need that to follow the motor swap. Turbo Before 4/87 1984-1986 Turbo After 5/87 1987-1989 Turbo NoN-Turbo Before 3/87 1984-1987 Non Turbo NoN-Turbo After 4/87 1987-1989 Non Turbo
Yes you can, however it is only a minimal difference in performance and is very costly! I used to own a non turbo 1984 2+2, and it was a less than 10% add'l horsepower.
Yes it will
This questions has MANY answers! It depends on the horsepower gains you prefer, vehicle use, the amount of money you want to spend. In stock trim a 1984-87 300zx has a T-3 Garrett turbo, while the 1988-89 came with (I think) a T-25 or T-28 turbo. Alot of people in the "Z" community upsize to a hybrid or a T3/T4 turbo. The benefit primarily is it maintains the stock bolt pattern, but more importantly it allows higher boost due to the larger T-4 compression side of the turbo. It has the low rpm spool capability of the T-3 but higher boost aspect of T-4 turbo. Beyond this may require custom manifold fabrication and mounting bracket to except a larger turbo. I have seen Z31 Series 300zx (1984-1989),making close to 500hp on similar T3/T4 upgraded turbo. Call any reputable turbo shop, they should be able to convert you stock turbo to upgrade form.
Don't know but if anyone knows where the flasher unit is located on a 1980 nissan 280zx, i'm interested..