I was wondering how you other guys doing this swap like Tilley had the 3.5 fuel rail converted to return-style? That's one part of the swap I hadn't given much thought to until now...

Also what happens with the fuel filter? Same? Should I change for 1995-1996 300zx filter?

 

Do you need a return style fuel system? If not, I say keep the returnless...

 

Well I'm running the 1995 ECU so I don't think I can run a returnless...

 

Why would the ECU care?

 

Ah I see...

I know what your thoughts are on the return vs returnless, but I did some research and it seems the maintenance would be more complicated/expensive on a Returnless...

 

Explain .

 

I'll try to find that article again and get back to you.

 

Difficulty is in the eye of the beholder. Returnless is every bit as simple as return and more productive.

 

So let me get this straight. On a return system, the rail sees whatever pressure the pump runs at right? But on a returnless system, the pressure the rail sees is already regulated? Using a DE-K FPR (opposed to using an aftermarket) would not work on a returnless system correct?

 

On a return system the FPR dead ends the feed pressure like a Dam at the end of a river. On a returnless system the fuel is pre-regulated like a spilloff Dam somewhere in the middle of a river.

 

And even by 2001 it was still return-style, right? God, nissan changed a hell of alot of things for 2002... So the returnless 02's do have a FPR. You mentionned that the 02's are still at 3.0 BAR, just like the 95. So why couldn't we use: 3.5 rail, De-K injectors, and 3.5 FPR, no need for an aftermarket?

 

The 3.5 FPR is somewhere in the tank... I will post some pics tomorrow of how I connected the DE-K FPR to the 3.5 rail.

 

Thanks man. I remember Tilley mentioning he was running lean after he posted his 233whp/230wtq figure. I guess a SAFC won't hurt either when this is done, they're so cheap.

 

Any pics yet?