Not enough fuel

[Rez Turbo]

I am currently tuning my car and can't seem to get enough fuel. The highest I can get is a 780 on the scan master. The air/fuel ratio doesnt seem to increase when I bump up the fuel psi, it doesnt increase when I turn up the MAF translator setting, it doesnt increase when I change the WOT setting in the chip. My fuel system is a walbro in tank pump with a hot wire kit and 60 lbs inj. current fuel psi is 44 lbs vac. line off. This issue is at WOT only, driving around town everything is fine. Any help would be greatly appricated.

Also on a unrelated topic do the GN1 valve covers fit without any interference issues in a stock engine compartment.

 

[Slow91z]

Either out of pump or possibly have a restriction in the fuel system.

My GN1 valve covers rubbed on the heat shield for the AC box...Removed the shield and all is well.

 

[Rez Turbo]

Thanks. I will check for restrictions in the line first.

 

[87GN_70GS]

Put a guage on it where you can monitor fuel pressure at WOT. If the pump is not keeping up, you will notice that fuel pressure no longer will track 1:1 with increasing boost.

 

[1quick6]

Put a guage on it where you can monitor fuel pressure at WOT. If the pump is not keeping up, you will notice that fuel pressure no longer will track 1:1 with increasing boost.

x2. It sounds like the pump can't provide the necessary volume.

 

[Roger]

I use an electric pressure gauge in the cabin - great for troubleshooting.