16 PSI at 2500 RPM

[LoWang]

Where do I start.....

First, I did a Exhaust manifold on my exclipse. The week after we did the Head Gasket, After doing set head gasket I now have a engine light on which no shop around can check, and was boosting high at very low RPM. Also have smoke coming from Exhaust at WOT and from under hood. I was lead to believe that the smoke coming from exhaust was from either 1. Blown turbo, 2. oil burning in turbo, So i replaced with a 16g (Original was 14b)
The smoke from under hood is from Oil getting on top of exhaust so its burning off which I am also lead to believe is my Oil pan seal is leaking.

This weekend we did the turbo replace, AND WOW. 16 PSI at 2500 RPM, needless to say i let go of GAS real quick. Tried to go from a stop sign and went to 20 PSI and POP. My LICP of turbo Pops off. So i redid everything so I am running NA so i could get home.

My questions are......1. Why boosting at such low RPM. 2. why did LICP pop off and why is there oil in there also. 3.Could the oil burning thats getting on exhaust be from oil pan. 4. any clue why check engine light be on after HG change. 5. Really a Comment, But let me tell ya 16 PSI at 2500 was a real change I likes it but prob not right

Thank you for your time

 

[calreef18]

What mods do you have? Update your profile so we know what you are running, it could be your boost controller set too high, wastegate actuator, a lot of different things. As for the CEL, go get it scanned to see what the problem is.

 

[LoWang]

After doing set head gasket I now have a engine light on which no shop around can check

And nothing in profile cause I have no MODS

 

[Jetblack]

What do you mean you have no mods? If you have a 16g turbo then that's called a mod. A boost guage which reads 20 psi is called a mod, you know, anything that YOU added to the car.

 

[DSM007]

I think you dont have the wastegate line hooked up to your actuator maybe there...get a manuel boost controller on there(thats if you have one)and back the screw out all of the way(not until it falls out of course) to get it down to 9-10 lbs of boost.....it looks to be your valve cover gasket needs to be replaced,when you replace it torque those bolts very gently,almost less than a spark plug so you dont break the bolts....use no sealant on the gasket set except underneath the little half moon shaped plug that gets inserted on the left side of the head.

 

[Jetblack]

Definitely hand torque those bolts, I broke one off in the head and it took 3 tedious weeks to get that damn thing out, lesson well learned. And Hondabond gasket sealer is great for sealing those spots on the gasket. Who ever said Honda and Mitsu couldn't get along .

 

[siceclipse]

im going with wastegate line is not hooked up correctly.

 

[LoWang]

I will def look into the wastegate line, but for the Valve cover there are no looks. That was first thing I cleaned off and check still no oil. Like i sed was thinking it is oil pan because if sits right above exhaust and where it is on exhaust is right there

 

[calreef18]

Clean off the pan then and try to check for leaks, probably best to jack up the car or get it on ramps and look under while its running. Also, is smoke coming straight out of the muffler as well? As others have said, check the wastegate line, also try to hook up an air compressor to shoot air into that nipple to make sure your wastegate opens and isn't blocked or pegged somehow so it isn't able to open.

 

[laserspeeddemon]

1) When you are using a MBC or the stock solenoid, boosting is progressive. In the since that the spring in the actuator takes 8 pounds of pressure to fully compress it. However, at 6 psi the spring is partially compressed and spooling slows as the wastegate is partially open. The fact that you are getting such a surge at low RPMS means that the wastergate flapper is not opening at all. This tells me the wastegate is not doing its job.

2)The worm clamps from the factory aren't very good and aren't designed to hold higher boost levels. The oil in the intact tract is normal. There is a hose that leads from the passenger (left) side of the valve cover to the intake snorkel. This hose is designed to release and burn crank case pressure and as a side effect oil gets in the intake tract.

3) You have to be more specific. You say exhaust... Do you mean exhaust manifold, turbine housing of the turbo, 02 sensor housing, or downpipe? If its on the downpipe, where on the downpipe, is on the bend in front of the engine, under the engine, or further back near the transfer-case. It is possible that your transfer case is leaking on to the downpipe. Check at the U-joint where the driveshaft goes into the transfer case. IF there is a ring of oil on the underbody of the car here, then you need to get it taken care of PRONTO!

4)Limitless reasons for a CEL. Get a datalogger and check it.

5) Most people will kill for spool-up like that.

Try hooking up the vacuum line from the turbo outlet elbow directly to the wastegate, you should expiernce more boost lag and low boost levels 8-11 psi. And please tell me you have a boost gauge. If you still get higher levels of boost, then you might want to try exchanging wastegate actuators. If that doesn't work I suggest pulling the turbo to see if there are any obstructions preventing the flapper from opening or exhaust gases from going through it. Since you got it off, port the turbine housing and 02 housing and grind down the area behind the wastegate flapper so that the flapper can open more fully.