95_Z-28_runner

i was wondering if you needed to run a bigger injector with the grandalli 255LPH fuel pump. beacuse my car boggs under an RPM load and does not have the same throttle responce. and i have the stock injectors in it. and it has a 1996 LT1 from a Corvette. does anyone know about having this issue?

boostedlt1

iTrader: (2)

stock injectors will be fine. why are you putting in a 255 pump? you don't need that either

95_Z-28_runner

i just put that in there beacuse it was cheaper then stock when i got it. i wonder if i need to replace the fuel pressure regulator?

RamAir95TA

iTrader: (2)

No, nothing needs to be changed, as long as everything else is in good shape.

95_Z-28_runner

i just dont know y it boggs under a load i did a complete tune up with wires,cap,rotor,E3 plugs,fuel filter,fuel pump, thats y i cant figure that out. then after you put ur foot in the car it smooths out. the vette motor only has 95k miles. it has slp headers magnaflow exaust, jet MAP sensor and Moroso intake. the bogging under a load its very iritating lol. t

RamAir95TA

iTrader: (2)

Your first mistake is wasting money on those horse **** E3 plugs!

I would check your fuel pressure first and foremost, whether you have a new pump or not.

95_Z-28_runner

ac delco i know lol ive used E3 on my other LT1 and have not had a problem. do u might think its a fuel pressure regulator beacuse when i turn the car off it wont start for .15sec.

96lt1m6

iTrader: (31)

Too many times we have seen people throw parts at their car without properly diagnosing the actual problem. This generally eliminates the aggravation!

95_Z-28_runner

well i dont throw parts at my cars i do full services on anything i buy. Im thinking the Fuel Pressure Regulator is the Problem. i thank everyone for there posts i like to always get different sugestions.

defaultexistence

iTrader: (11)

Just do a pressure test... And that will tell u if the fuel system is working properly or not... What did u gap those over rated plugs at? And describe "bogging" because a stock lt1 motor under load isnt a power monster to begin with ... Are you comparing it to something? Also lot of people know their **** here so be open minded and listen when u ask questions not argumentative FTMFW

defaultexistence

iTrader: (11)

BTW, no u don't change to bigger injectors simply because u put in a stronger pump... And if u do it'll run shittier

95_Z-28_runner

Wat spark plug would ya say is the best ac delco? And i think Ur rite it's probable how the lt1 is under a load.

95chevyz28

Ngk tr55

defaultexistence

iTrader: (11)

^^^^or even autolite's gapped properly or a lil under,not saying their best.. But u would never know a difference... Only ur pocket book would..