fuel cut qeustions - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s13dan · 09-09-2004, 11:30 PM

OK here is my problem... i have a manual boost controller and i have run 10psi of boost without a problem, anything higher than that and i think im hitting fuel cut.. i have full 3inch exhaust greddy BOV but all stock fuel system... so is it that im getting to much air and not enough fuel? (the car sputters and acts like its dying i HATE it) if so how can i elimnate the problem, with just a fuel pump or just injectors or both? eventually i will have a Z32 Maf and 550cc and a SAFC but not yet. thanx
-S13Dan

dct223 · 09-09-2004, 11:44 PM

I think u need to upgrade ur maf once u start boosting after a certain point... not sure though =P

nrg · 09-10-2004, 03:36 AM

You're not hitting fuel cut. Your Stock fuel pump isnt giving out good PSI.
You need a walbro 255LPH HP pump and Z32 fuel filter.

09-09-2004, 11:30 PM	#1
s13dan Zilvia FREAK! Join Date: Aug 2003 Location: Springfield, Mo Posts: 1,519 Trader Rating: (2) Feedback Score: 2 reviews	fuel cut qeustions OK here is my problem... i have a manual boost controller and i have run 10psi of boost without a problem, anything higher than that and i think im hitting fuel cut.. i have full 3inch exhaust greddy BOV but all stock fuel system... so is it that im getting to much air and not enough fuel? (the car sputters and acts like its dying i HATE it) if so how can i elimnate the problem, with just a fuel pump or just injectors or both? eventually i will have a Z32 Maf and 550cc and a SAFC but not yet. thanx -S13Dan __________________ 89 240sx hatch #933-the hot rod 91 240sx coupe #131,603-the daily

09-09-2004, 11:44 PM	#2
dct223 Nissanaholic! Join Date: Nov 2003 Location: hella NORCAL! Age: 39 Posts: 1,664 Trader Rating: (4) Feedback Score: 4 reviews	I think u need to upgrade ur maf once u start boosting after a certain point... not sure though =P __________________ Sfourteen

09-10-2004, 03:36 AM	#3
nrg Zilvia FREAK! Join Date: Mar 2004 Location: CA Age: 40 Posts: 1,571 Trader Rating: (1) Feedback Score: 1 reviews	You're not hitting fuel cut. Your Stock fuel pump isnt giving out good PSI. You need a walbro 255LPH HP pump and Z32 fuel filter. __________________ driftingisgay.com