I've been trying to tune my car as of late. I've been using Data master to log some pass. Everything looks good up till 5700. The 02's start falling bad. I have a Inline NOS pump, but still have a stock intank. I just bought a walbro 255 high volume intank pump inhopes that this will cure the problem. The question I have is should I leave the inline pump in or should I remove it. I was told that it is a restriction when I step up the the 255lph. My current set is a 383, 42#svo, T-Trim w/aftercooler,11#'s of boost.I will also be adding a 75 shot for extra cooling effect . But will not run the nitrous until I get the fuel problem Corrected.


Any help or suggestions would be great.
Thanks GS355

 

I would ditch the inline and install the new Walbro intank pump. I would also run -8 or -10 AN braided stainless steel fuel line in place of the factory feed line.

 

I would probably stick a twin intank setup and get rid of you inline pump. I made 705 rwhp with this setup.

 

Thanks Guys


Keep the suggestions coming
GS355

 

could you tell us more about the twin intank pump setup that you have..................I also have a stock intank pump and the in-line pump that cam with my procharger and I dont realy like this setup.........because my stock fuel pump has 98,000 miles on it and I dont want it to crap out one day when Im making boost....

thanks