If i up the psi or lower the psi , which will keep more fuel to the injectors?

 

the higher the fuel pressure the more fuel will spray out of the injector at said duty cycle.

 

Oh this is gonna go well. Curiosity... why are you asking this question?

 

When my boost kicks *** at around 5400 and i take it to 6700-7200 is breaks up , my thought is because there is to much air not enough fuel so i upped the fuel psi and it seems happer. but the motor idels lower and wants to shut off.

 

Now its doing the same thing breaking up only in first with the upped psi, and the car seems not to hit boost as hard. still wants to shut at off ideal ??

i need helps. but other then that it runs smooth and strong.

 

GET IT TUNED !!!

 

I guess

 

Get an FMU and jack up that fuel pressure!

 

the car has 880cc injectors and a 255lp pump , with aeromotive regulator, when i lower the fuel psi real low the car runs way smoother, but when i up it it runs better only when in high boost, its backwards i guess a tune is the only real cure.

and the car seems to run better with the vacuum line off the regulator also. but the fmu would just hold the fuel back more right for that case i would just crank the regulator to 95+psi or as high as it will go , but the higher i place the psi the car wants to shut off at idle and leaving 1st gear

 

Get it tuned.

 

FAIL !

 

it's not just pressure, it's also volume, is your fuel pump capable of providing enough volume for your setup? what about the injectors? are they running at 100 percent duty cycle already? if they are you need injectors capable of handling a larger volume of fuel. pressure won't help if the rest of the system can't deliver enough fuel. Fuel pressure and fuel volume are directly connected, you have to look at both at the same time

 

Just keep driving the car without gettin it tuned, sounds like that will help with your issues ... Hahaha is this dude serious? As stated alright... GET THE CAR TUNED .... Der Der

 

Lol

 

just a matter of time