One exhaust flowing is not a good sign.....stock exhaust or ?
Jmantx E92 Build Thread
- Thread starter Jmantx
- Start date
Yeah, stock exhaust. I'll drop the exhaust and see if I can see something in it or the downpipes.
My buddy blew what I assume to be his wastegate flapper out on his Franken turbos and you can hear it rattling around in the secondary cats pretty good and I think he told me makes max 2-3 psi of boost
I started the car this morning to see if it would smoke... And it sprayed oil. I think I might throw some Wuhan war whistles in it for now, go another couple thousand miles, then I should be able to buy some Pure 600s. I just have to keep reminding myself it's a daily, meaning I'm keeping it twin turbo and on 93(for the most part). Who knows, maybe the new Chinese turbos will work for a long time. Then again, with my luck they won't, but hey. What have I got to lose? Considering I do all my own work, I'm ok with changing turbos several times.
You want my stock twins that throw a 30ff ? They make 16psi fine it but I was targeting 19.5 and would then throw the code. I assume the waste gate(s) are shot. 80k on them. Free if you want. You could certainly 'limp' by on them for a few months before you buy quality twins. They just throw the code on a long gear pull on the highway when the dme saw boost so under target for so long. Around town you can go wot and they are fine I only would hit the underboost code on a 4th gear highway pull if I remember correctly.
For all I know they might still underboost and have issues at lower psi target. Off the car two years sitting in my garage. I was thinking of rebuilding them and then selling but I am way too busy. Maybe rebuild them and send?
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Thanks for the offer. I've got my old ones in pretty much the same shape, so I might just order the rebuild kit for them. I was just slightly concerned with welding the wastegate arm correctly, but I guess if it's not perfect I can adjust the actuator. My problem is that I sold my relocated inlets that came on the car, and now I need 1.75" inlets to use those turbos again.
So, I ordered a rebuild kit. I also pulled apart one of my old turbos to look at. It came apart pretty easily, but then again I've rebuilt a turbo before. The parts should come this week and I'll get them slapped in.
Update: I had ordered new vacuum lines and some Amazon solenoids. I figured I'd put them on and see if anything changed. Turns out, it wasn't Chinese turbos that had failed. It was Chinese solenoids. Unfortunately, the new solenoids won't hold boost either. On map 1, it's making 19-21 psi, which I know is rather dangerous. My exhaust is now working perfectly normal. I'm guessing the valve got stuck and the vacuum system wasn't strong enough to open it, since I had a vacuum leak. I'm going to put on my original solenoids, return the other ones, and order new ones from FCP.
TL;DR:
Turbos are fine, solenoids and vacuum lines were shot.
TL;DR:
Turbos are fine, solenoids and vacuum lines were shot.
Lol
I'm on a stock tmap sensor, running straight 93 in 100f ambient temps. Something tells me I'll be playing with ethanol soon. It spun the tires from a 60 roll past 80. Oh, and wider, stickier tires (I know, I've been saying that for a while).
Yeah not safe.Lol
Forgive my over zealous associate.
Lol
I'll just have to get a sensor and add some E85 with the right flash. Y'know, make my daily faster than my project car.
Well, yes and no. The daily still has a stock engine and transmission, functional AC, decent paint, and I could reasonably jump in and drive cross country. The project car doesn't have much time before it gets engine swapped, new interior, paint, lowering kit, etc. I wouldn't try to drive it cross country by any means.
I don't think I would take either of your cars cross country 
Just sayn
Fine, I'll go fuck off now
Just sayn
Fine, I'll go fuck off now
What can I say, I like adventures. Yeah, I need to get everything buttoned down on this car. The project car will be pretty reliable once it's finished.I don't think I would take either of your cars cross country
Just sayn
Fine, I'll go fuck off now
I’d find a N54 friend close by. Borrow their known good solenoids to verify that it’s bad solenoids and not turbos.
I threw my old solenoids that would make *some* boost back in, and still no boost. I realized I did not change one piece of vacuum line, so I'll change that and check. Random thought, is there a chance my vacuum pump has gone bad? I don't have a vacuum tester on hand, but I can get one if it's a possibility.
