Turbo boosting 2psi only, stumped.
#22
Have you verified base timing is set? My first guess would be same as sav. wastegate issues but you say you've tested them. You also say your wide-band is reading rich.
It would have to be a SERIOUS leak that would be madly noticeable without any real testing to lose that much boost. I drove home the other day with a cracked injector o-ring and a leaking coupler. I could easily hit 6 psi. Spool took a little longer but it would get there.
Make sure your base timing is setup correctly?
It would have to be a SERIOUS leak that would be madly noticeable without any real testing to lose that much boost. I drove home the other day with a cracked injector o-ring and a leaking coupler. I could easily hit 6 psi. Spool took a little longer but it would get there.
Make sure your base timing is setup correctly?
#23
Have you verified base timing is set? My first guess would be same as sav. wastegate issues but you say you've tested them. You also say your wide-band is reading rich.
It would have to be a SERIOUS leak that would be madly noticeable without any real testing to lose that much boost. I drove home the other day with a cracked injector o-ring and a leaking coupler. I could easily hit 6 psi. Spool took a little longer but it would get there.
Make sure your base timing is setup correctly?
It would have to be a SERIOUS leak that would be madly noticeable without any real testing to lose that much boost. I drove home the other day with a cracked injector o-ring and a leaking coupler. I could easily hit 6 psi. Spool took a little longer but it would get there.
Make sure your base timing is setup correctly?
#24
It's not that either, I had this problem before I even tore the car apart. Way back 2 months ago. Even so, the only thing I did was take the vband off, and once I saw how big those c clips were I put the vband back on. I've watched videos of it.
Someone asked me to see if the turbo spinned AFTER SHUT DOWN from idle. That's what I meant when I said 'turbo spins for a bit after idling for a minute'.
I set base timing about 2 weeks ago. Had to go so far as to pop the #1 cyl plug out and crank on the crank bolt till I got it at tdc so I could see the mark on the crank pulley. Couldn't see it before because it didn't have any white out on it.
Someone asked me to see if the turbo spinned AFTER SHUT DOWN from idle. That's what I meant when I said 'turbo spins for a bit after idling for a minute'.
I set base timing about 2 weeks ago. Had to go so far as to pop the #1 cyl plug out and crank on the crank bolt till I got it at tdc so I could see the mark on the crank pulley. Couldn't see it before because it didn't have any white out on it.
#25
Does your car run nicely with the wastegate open? As in it idles smooth and you could daily the **** out of it and flog on it? From the video it just doesn't seem right. boost or no boost. that's all.
#30
Yes there are better (much better) options out there, I know this. ****, I had a mspnp ready to go for my '96 when I had planned on turbo for it. This does not solve my problem though. My bandaid is not preventing the turbo from boosting past 2psi. I checked my piping (took it all out of the car, connected everything like it was in the car) and the piping is hold pressure. When I popped out the pvc plug I made, it popped. So it's holding pressure.
#33
I'm not detonating, I definitely know what that sounds like. I keep telling you guys, the thing that sounds like rocks in my video is my loose **** ****.
I have not taking apart the turbo, I did take a peek inside when I had everything else off the motor. I know there are parts of the wheels that hide inside the turbo that you can't see from the outside, but from what I could see they are fine.
On a note of my post above, I did forget to put my pipe in that I had made so I could hook up my IACV hose. I am leaking there. I sprayed some soapy water on it, and it shot it off the pipe, so a pretty significant leak. But my question (and I think I know the answer, Savington mentioned it) if it is leaking all the way at the throttle body, would the pressure be the same at the wastegate?
Also, I do appreciate all the help guys. I won't be able to post back in a few hours, work called me in to cover a minor shift.
I have not taking apart the turbo, I did take a peek inside when I had everything else off the motor. I know there are parts of the wheels that hide inside the turbo that you can't see from the outside, but from what I could see they are fine.
On a note of my post above, I did forget to put my pipe in that I had made so I could hook up my IACV hose. I am leaking there. I sprayed some soapy water on it, and it shot it off the pipe, so a pretty significant leak. But my question (and I think I know the answer, Savington mentioned it) if it is leaking all the way at the throttle body, would the pressure be the same at the wastegate?
Also, I do appreciate all the help guys. I won't be able to post back in a few hours, work called me in to cover a minor shift.
#36
Yeah I got a 1.5" pvc pipe plug, drilled a hole for a valve stem, capped one end and put that on another and used a bike pump to test pressure! Now I know what it is, I will attempt to fix it with some jb weld. Take out the brass hose barb, put some on the threads, and then some on the outside and hopefully it will hold.
If not, what do you guys use to to route your IASC valve to the intake?
If not, what do you guys use to to route your IASC valve to the intake?
#39
Everything back together, no boost leaks, double checked with hood off, soapy water sprayed around the connections. I did have one at the beginning, but fixed it. Turbo still only does 2psi.
Going to cut out my catalytic converter Tuesday and just put a straight pipe in the place for now, tie the after cat o2 sensor out of the way.
If that still doesn't solve my issue, what else could there be? Compared to my '96, there is no power, even with 2psi. It takes it forever to get to 40 mph in 2nd gear.
Going to cut out my catalytic converter Tuesday and just put a straight pipe in the place for now, tie the after cat o2 sensor out of the way.
If that still doesn't solve my issue, what else could there be? Compared to my '96, there is no power, even with 2psi. It takes it forever to get to 40 mph in 2nd gear.