That's the best option

 

You are correct, if you observe the fuel pressure drop during power pulls then it is an indicator that the system is running out of fuel pump. The engine is consuming more fuel than the pump can flow to hold pressure constant at xx psi. This holds true for both conventional and returnless type fuel systems, considering everything is working normal with no leaks, fuel pump, fpr and filters are in good order.
Fuel systems are easy to setup, let me know if you need help

 

Thanks for the offer!

Can I run new feed and return lines using the stock fuel tank, or will I need to switch over to a fuel cell. At some point I will switch to a fuel cell, but the total cost is estimated at ~$2K, and that is very low on the totem pole right now.

 

350Z's and G's have this problem when making big power. they go to return system after about ~400-450hp

 

is there a DIY for converting to a return fuel system?

 

this is new info to me....subscribing. I'm going FI soon also and would prob. be good information to have when i run into the same issue. Is it really as easy as running a hardline? I assume you need some sort of FPR?

 

There is a little bit more involved than just running a hardline--you need to figure out how to hook the hardline up to both the fuel tank and fuel rail. More than likely I will run steel-braided lines; -8AN for feed line and -6AN for return line. There is a third line, a purge line, and I am not sure what that is for yet...

Yes, you need to disable/remove the OEM FPR, which is located inside the fuel tank itself, and use an aftermarket FPR. I bought an AEM FPR over a year ago and it is sitting in my garage awaiting to be installed.

 

the rsx uses a returnless system, i just installed ITB's on a rsx and converted it to a return type, if the s2000 fuel pump & pickup assembly is like the rxs it is not bad to do, i ran new -6an braded for supply and a standard fuel line for return, because this car was NA that was more than enough fuel, you could upgrade the fuel pump to a 255hp and maybe modify the intank fpr to get you more fuel before converting it, that would be worth a shot.

 

^ does the rsx have drive by wire? if so then who makes the itbs for it? custom?


sorry for going off topic.

 

No it does not.