spyder348

stock injectors and 55 psi fuel they said so ill go with that. pay attn. to the wideband and go from there.

ehall

You may as well just buy a 3bar FPR. Either gut the cat out of the exhaust or get a full 3" exhaust, and you could probably do with a new wastegate, if yours is the original.
Lastly, and most important, the other equipment is useless if it's not correct for the chip.
I can't stress that enough. Good chip with wrong injectors and boost levels and you will find this to be a very expensive bargain.

spyder348

Have an LR adjustable FPR on the way i got for 69 bux. That should allow me to get to 55 psi ill try the stock injectors. Either weld in a straight pipe to delete the cat or find a good deal on 3 inch system. The chips i know are programmed for that turbo 55 psi stock injectors 3 inch exhaust barn door afm. the ? is just how much boost can i turn to until the wideband starts going lean

V2Rocket

anyone have a link to that thread a few months ago where someone homemade a 3 or 4 inch exhaust with generic parts ordered from magnaflow or something

ehall

The stock injectors are 36. You can't get to 55 without 55# injectors.

spyder348

well i was told stock injectors which yes maybe 36 but they said stock injectors with 55 psi of fuel and the fpr and fuel pump are what fuel pressure depends on. right?

ehall

at max duty cycle, 36# injectors put out 36#'s. Sure there will be plenty of fuel available to them, but they will then be able to put out 36#'s a tad more easily...no more.

Rogue_Ant

Dude, seriously, just get a turbo cat-back. The turbo muffler is straight through, and DFastest951 made nearly 500rwhp through it. I'm sure you could get one for dirt from a member (hell, I threw away my stock exhaust).


-Rogue

Rogue_Ant

The stock injectors are ~36lb/hr @ 2.5bar (36.25psi).
At a static pressure of 55psi, the stock injectors will flow ~44lb/hr.


-Rogue

TurboTommy

Even with the high fuel pressures yielding you 44lbs/hr; you still might come up short for 350 hp. Also, the stock fuel pump loses flow potential drastically with high fuel pressures, so that it might even be the shortfall.
Thirdly, high fuel pressures, along with high duty cycles, puts alot of stress on the injectors, causing possible failure.
Botton line is, you should really get bigger injectors for your power goals.

V2Rocket

i plan to. i just asked that question for the benefit of the OP.