detonation and no boost
10-01-2003, 10:10 PM
#1
0.0 BAR
Thread Starter
Join Date: Mar 2003
Posts: 0
detonation and no boost
i put my turbo on about two weeks ago and can't seem to get any boost above 2psi and i'm running really rich. i've checked my charge pipes for leaks but didn't find any. could the intake side of turbo be restricting airflow? i'm using a cut short ram intake and filter with reducers to fit the turbo. if the filter was dirty would that make this big of a differance? today when i turned my car off after it sat i heard like a popping sound coming from the engine, is that detonation? could that be because it's running too rich?
10-01-2003, 10:17 PM
#2
1.0 BAR
Join Date: May 2003
Posts: 346
Re:detonation and no boost
correct me if I'm wrong(somebody)...but I think detonation occurs when ur running too lean, running rich affects(in a bad way) performance...I've never had detonation so I couldn't tell you what it sounds like, but I think(??) it happens when your car is running...
10-02-2003, 10:20 AM
#5
1.0 BAR
Join Date: Sep 2003
Posts: 453
Re:detonation and no boost
It is your car cooling down, not detonation. Detonation only happens when the car is running. It is due to running lean, high compression, advanced timing, poor cooling, or some combination. Can't happen if the car is off.
10-02-2003, 01:02 PM
#7
0.0 BAR
Thread Starter
Join Date: Mar 2003
Posts: 0
Re:detonation and no boost
my set-up is:
d16y8
t-25 wastgate set at 8psi
dsm intercooler
probe bov
cartech adjustable fmu
walbro 255 fuel pump
btm
it doesn't sound like the normal pinging that happens when you turn the engine off, it's more like a loud crack every so often. just doesn't sound good.
do you think i should try and find a differant filter for it? i want to find a filter with a smaller ID so it will fit my 2 1/2 inch pipes and i can get rid of the 3 inch pipe going to the 2 1/2.
anybody have any suggestions on the no boost problem? i tried using a MBC and it doesn't change anything.
d16y8
t-25 wastgate set at 8psi
dsm intercooler
probe bov
cartech adjustable fmu
walbro 255 fuel pump
btm
it doesn't sound like the normal pinging that happens when you turn the engine off, it's more like a loud crack every so often. just doesn't sound good.
do you think i should try and find a differant filter for it? i want to find a filter with a smaller ID so it will fit my 2 1/2 inch pipes and i can get rid of the 3 inch pipe going to the 2 1/2.
anybody have any suggestions on the no boost problem? i tried using a MBC and it doesn't change anything.
10-02-2003, 08:28 PM
#9
0.5 BAR
Join Date: Jul 2003
Posts: 174
Re:detonation and no boost
hey guys i have the same engine as him and when my car is off i hear more than just the regular "ping" noise from exhaust, i hear a more like a "crack", comes from valve cover and engine area.. is it because the turbo makes the engine hotter thus making the metal heat up and contract more strongly
? it seriously sounds like a crack but nothings bad happened... knock on wood
? it seriously sounds like a crack but nothings bad happened... knock on wood
