redlinec

iTrader: (1)

i have a 98 ls1 with a 10 psi vortech system aftercooled and 42 # injecters. ok now this is whats going on any were above 3000 rpms it will start to cut out it will like change every time like 3500 or 4000? but if i keep the gas to the floor it will start missing and spitting. if feels like i loose the boost but my boost gauge stays up? any help?

JMBLOWNWS6

iTrader: (17)

First off I would stop trying to go rev thru it. Your going to mess something up. Do you have a tune on the car or what vortech gave you? What is your fuel pressure? Do you have a wideband on the car? Have you checked the plugs? What kind of plug are you running? Need to post a little more bro for any of us to help you out

redlinec

iTrader: (1)

First off I would stop trying to go rev thru it. Your going to mess something up. Do you have a tune on the car or what vortech gave you? What is your fuel pressure? Do you have a wideband on the car? Have you checked the plugs? What kind of plug are you running? Need to post a little more bro for any of us to help you out



i have a tune not sure if its right ive done it on ls1edit, i dont no fuel pressure lol no wideband no i have not checked the plugs i think ill start there probely..

MavrikTA

iTrader: (27)

Ive been reading about valvefloat lately on boosted LS1's. Id venture to bet it is tired valvesprings.

JMBLOWNWS6

iTrader: (17)

Let us know what they look like. Could also be a fueling problem.

JD_Z28

iTrader: (19)

Check your plugs you might of fouled them. Look for oil on them.

redlinec

iTrader: (1)

ok ill do that and let you know thanks eveyone for your help!