swarthyfellow

What is the most power you can make with the stock fuel system?

WhiteFoxGT

300-325whp I'd say...

I doubt the stock MAF will go anywhere near that or higher...

silver91gt

my friend is making 380rwhp on his 02 GT, with a focus fuel pump which isnt really better than stock, and 42# injectors.

WhiteFoxGT

And that is far from stock (he needs to have a MAF tuned to go with it), which defeats the whole point of this thread lmfao

silver91gt

stock fuel system doesnt consist of a mass air meter.
fuel system is fuel pump/lines/rails/injectors.

ChucksBullitt

well technically it does consist of the MAF. It measures the air coming in to send a signal to the fuel gods of how much dino juice to pump in to make the burn happen.

2000AZ5.0GT

fuel system? 300rwhp if you do nothing to it.

stock STYLE fuel system (staying returnless) you can get to around 550rwhp safely, possibly more if you go sumped

but around 550rwhp I would say you NEED to upgrade to a complete return style system.

cliffyk

You don't need a new MAF (unless it's pegging) to run larger injectors; setting the high and low injector slope scalars to match the injector capacity is the proper way of doing it.

Also, larger "calibrated" MAFs are a kludge (all they do is lie to the PCM about the amount of air) that can really screw up the PCM's load calculations and everything else that depends on load numbers.

The proper way to use a larger MAF is to program the new units transfer function into your tune. They (calibrated MAFs) are a left-over from the days when ECU couldn't be reprogammed and you had to trick it...

WhiteFoxGT

That's nice, but he said STOCK

Not professionally tuned, calibrated, etc...

Unless the TS has subliminal messages I'm not getting...

It was a simple question about stock capabilities, and people come in talkin about pumps, injectors, MAFs... It just makes me laugh sometimes..

cliffyk

I was responding to the message posted by ChucksBullitt, not the TS...