Moonshine

What size jectors? That pump should (assuming its not malfunctioning) be more than enough..

scooter3

I am running 39 pound injectors and a single GT pump. It was never brought to my attention before so I am not sure why now. It could be malfunctioning as far as I know, but I don't have any way of knowing that. Car runs great and it has never stumbled. I guess I need to ask my tuner a few more questions.

01GT4.6

The 39's should be sufficient. Is your tuner the one that also setup the fuel system?

scooter3

By set up do you mean install? If so then no. He only tunes. They had a guy at the shop that did most of the work, but I also helped. Since it was the GT pump we had to drill the basket and make a few other modifications. He no longer works there, but up til now there has been no issues and that has been almost 25,000 miles later.

01GT4.6

Sorry, I haven't been around much in the past couple years (you probably don't even know me). I thought this may have been a new setup. With it being a single pump, it couldn't hurt to put a BAP on it, especially if you plan on making more power later. I wish I could have given you a solid answer, at least you have some good questions now. I would check all the fuel lines, make sure there are no kinks, make sure the fuel filter is good and go from there.

scooter3

It's all good man. I have read many of your posts and you have much more knowledge then I so I always look for that. Like I mentioned before my tuner would rather put in a bigger fuel pump them a BAP due to some sort of spike the BAP makes when you hit WOT. Again I don't know that much about this stuff so I have to rely on what he is telling me. He has not steered me wrong yet. My car was on the dyno for almost 3 hours and he did not charge me a dime, so he is a good guy. I changed the fuel filter about 20,000 miles ago, but nothing wrong with putting a new one in. Thanks for all the help!

Moonshine

I've heard of guys running well over 400rw with those termi injectors. I would suggest 42's, however your set up *should* see above 400.

Stupid question but have you changed your fuel filter recently? Not sure it would starve you but it might be worth looking at the little things first.

Edit:

Just read that its been 20k since the last one....might wanna try a new filter.

Gt04

If you wire a bap to run full time instead of kicking in at wot you can avoid those spikes and keep your current fuel setup.

dwtjr3

OP, How much boost do you see?

We have the exact same setup

Only difference is i have N/A cams and a auto and I hit 11lbs on the dyno

dwtjr3

This^ I did this and the fuel curve and FPDC was pretty consistent each pull.