95 AWD
14b.

Here's a run down of what I've been doing over the past few days.

5K Stutterbox, and I can't build more than 3 psi of boost.

There are NO boost leaks, nada, zip. I've leak-tested to 15psi so far (Not a big enough compressor) and I have no boost leaks.

I just picked up a new EVO III Hotside (Borrowed) from a member here, and slapped it on, therefore the hotside is perfect.

The timing (mechanical) is off 1/2 a tooth, but not enough to cause this.

The exhaust manifold is a little bit wet at the head, however I don't see any smoke coming from it.

I'm completely baffled as to why I have no boost. The turbo has little up/down and no in/out play. It's Ian's 14b, however I do believe it was abused by the previous owner.

Help????

Try another wastegate.

-make sure the wastegate arm is on.
-make sure the flapper is not stuck open(wastegate stuck open)
-make sure the flapper is closing all the way.

Get a 50 Trim; that should take car of it!!!

Smart Ars Giz!!!

Can't build boost while driving, or just can't build much boost with the stutter box?

Wire the wastegate shut and pull the actuator line, to see if it's a boost control problem.

Can't build boost for both, only gets 3 psi max.

Sounds like wastegate is stuck open to me, had this happen before.

Ugh.. no. The wastegate is NOT stuck open. I wouldn't make that much of an elementary mistake.

Can't build boost while driving, stutterbox, stutterbox with antilag, nothing.

I've also pulled the boost reference line to the wg, does nothing.

I seen the crack in the Hotside. Defenately no boost worty!!!

Having said that Ryan and as much as it might hurt one proud; Wire the WG shut. That will for all eleminate any doubt.

Ghislain.

Its already shimmed shut.

Have you tried turning the turbo comp wheel by hand to see if it's freely spun?

Ryan, does the car have a cat? A badly clogged cat will let you idle well, but will give you little to no boost.

Everything worked fine before the turbo swap, the t-25 would build 14-16 psi all day long no problem.

Try dropping the down pipe and going for a test run, that should rule it out.

And yes, the turbo spins freely by hand, with very little play in any direction.

The only thing left to look at is the boost controller. If you have a manual one you might want to take it apart to have closer look.

Boost controller issues would only make it stay open longer/create MORE boost.

Like I said before wastegate is stuck open, flapper is not connected or broken.
Or the exhaust housing has a huge crack in it.

Try "not running a boost controller".

frack it. Punching out the cat tonight.

To recap for those just joining us.

-Only making 3 psi of boost.
-It's not because the wastegate is open, The thing is very very much closed.
-Wastegate acutator is not causing an issue
-No boost leaks
-No exhaust leaks.

I agree with Ghislain buy a 50 trim lol, got to get it going soon we got seafood to eat in Trenton

Yeah, well I'd like to get it going a lot sooner that that!

Turbo's shot, for sure. Punched out the cat, nothing. We free revved a bit and then WOT sutterbox and she built like 15psi!

We couldn't reproduce it.

So I'm confident it's the turbo.

Refund time.

No refund required. It was a free turbo.

so pull out one of the other ones in your basement and hook er up

Git er Dun,tell Kyle to get his butt on the site he could learn something on here lol

Wicked awesome turn of events. Put my turbo on his car, blows so much smoke we cant even see. So the s16g i bought last september for my car is pooched. So, now were two cars down and no turbos. Anyone have one for sale that doesnt suck balls?

Make sure it's not just a plugged oil return line!

It's not, new gasket in there.

Brian, thanks again for the offer, but I'm not looking for a 14b anymore.

Did you use RTV? Seriously, double check. If a glob of that blocks only half of the return line, the turbo will dump all sorts of oil. It would be a shame to waste a perfectly good 16g.

Is it possible that because the turbo sat in my basement all winter with little to no oil in it that the seals dried up? I really dont want to have to buy another turbo as this ones all purdy with powdercoat and porting.

No that won't happen.
The seals were either shot already, or the return is blocked.

If it's blown then you only need to replace or rebuild the center section anyways, keep the powder and porting.

Return line isn't blocked. The turbo is toast.

So I need one. Bad.

Is it possible that the turbo wasnt put back together properly when it was sent for powder coating? The compressor housing was taken off so that it could be coated. Is it possible that it was damaged or not re-assembled properly? I guess we'll have to recheck it tomorrow when we take it back off Ryan's car.

Yes it's possible.
The cold side could be missing the o-ring, but would be like a bad boost leak.
The hot side could have a messed up gate, but that was probably checked (obvious) before install.

I have found a known working 14b. I've been in this car, driven it, felt the turbo pull, so I know it works.

So, if all goes well, car is on the road tonight!

You flippy flopper. I thought you were 100% against 14b/16/18/20g?

You should have just bought the C16g from ebay.

Funny thing is I did! But can't afford the setup needed to run it. (Injectors, FMIC etc).

I'm going for a "stock" setup right now. The 14b is "stock" on a DSM.... just not this one.

If you drove a 5spd it would build boost

But for real, I'm keeping my fingers crossed that it works.

Off to get my turbo now. Will let you all know how it works out.

Just picked up a 4L Jug of Methyl Hydrate last night... if all goes well, time to DIAL IT IN!!

You're ahead of yourself Ryan, obviously your car doesn't have any boost fluid in the reservoir!