Car in question-02 SS A4 with Cartech X package.
Been running the stock pump with a TNT 75 shot and progressive controller with no problems.Have a Kenne bell boost a pump now and upgraded 8 gauge wire from battery.We are going to run the 100 jets,then possibly 150's by the end of the season.Car runs 11.4's NA so far,probly 11.0's soon NA.
So the question is what pump has worked good for the board members? I have no problem modifying the fuel pump encloser

Thanks

 

Nobody upgrades there fuel system

 

I cut a hole in my trunk, and installed a Walbro 340. It was a snap.

I dyno'd 533 and had no problems at all.

 

have the walbro 340 on both cars.no problem here.seeing 62psi on fuel gauge.hit the 150shot drops to only around 52psi.

 

Thanks guy's I'm hoping to battle the pressure loss with the boost a pump.