1975 fuel rail

[ennisdavis]

How many of you guys have replaced the fuel rail with either new design or stock?

[Captain Obvious]

I believe it's around 127 or so.

[AZDatsun]

I would fix the rust first just saying if you try to start your car in it’s current state it might shake apart 

Edited September 26, 2021 by AZDatsun

[ennisdavis]

Working on it all at the same time. If I didnt it would never get done. At night I can work on the mechanical so I dont wizz off the neighbors with a grinder. If you guys have done the fuel fuel rail replacement, post some pics, I would like to see them.

Edited September 26, 2021 by ennisdavis

[Reptoid Overlords]

This is the best picture my cheap-o phone can produce.  But It's Z Car Depo's Fuel Injection Rail Kit with Regulator:

https://zcardepot.com/collections/fuel-injection/products/fuel-injection-rail-kit-with-regulator-efi-280z-280zx#

My car is a 1980 ZX like dutchzcarguy's car, which means I had to install the fuel pressure regulator remotely in the engine bay.

The S30 can have the fuel pressure regulator installed in tandem to the rear of the fuel rail as pictured in the link above. 

The fuel rail will accommodate stock injectors or 14.5mm "o-ring" type injectors from newer Ford or Chevrolet vehicles, but as far as I have read, the stock ECM/ECU will not run the 14.5mm injectors properly.

https://zcardepot.com/collections/fuel-injection/products/fuel-injector-14mm-o-ring-19-new-efi#

I am running their FAST EFI kit on a mildly built higher compression flat top L28, with the 14.5mm injectors and it works perfectly fine for what I want out of it.  It's pretty much plug and play.

https://zcardepot.com/collections/fuel-injection/products/fuel-injection-retrofit-kit-fast-efi-280z-280zx#

 

 

 

Edited September 26, 2021 by Reptoid Overlords

[Zed Head]

In 1978 Nissan went to a one piece rail.  Not the three piece with the hose connections that your 75 has.  That's worth it, for an easy switch, if you can find one.  A ZX rail is also one piece but the cold start valve will need some work to get connected.

Many people get an aluminum rail because it seems to help with the hot start problem.

[siteunseen]

Here's what I did for about $50.

The end of the job...

 

 

[siteunseen]

2 hours ago, Zed Head said:

Many people get an aluminum rail because it seems to help with the hot start problem.

That's absolutely true. My fuel rail is cool to the touch. I consider it an open system. I used a '78 fpr with one in and one out. It constantly flows fuel.