Real quick question on BOV during BLT

[MY1GDSM]

I am using the wastegate that came with the 16g. I didnt take it off of the t25.

My vacuum lines are like so.
*bottom line of BCS runs to j-pipe nipple And that line there is t'd off and that line that is t'd off goes to wastegate actuator
*top line of bcs goes to the intake

Oh I miss read what you said... .

I'd say best bet is post a clear good pic of the turbo and W/G actuator so we can get a better Idea what's going on... .I only see two possiblys if the turbo is indeed good... One you wastegate isn't holding W/g arm closed ot Two you Car has a Big enough boost leak that it can hold presure... IE some thing like your BOV leaking...

 

[razrman8]

I wish I could spike to 6

<a href="http://www.flickr.com/photos/50007640@N06/5324016053/" title="IMAG0271 by keenanwillis, on Flickr"><img src="http://farm6.static.flickr.com/5050/5324016053_247791a1a3.jpg" width="299" height="500" alt="IMAG0271" /></a>

 

[nek]

Why dont you eliminate the bcs and go from jpipe straight to wastegate.. That eliminates one more thing from the system and you really dont need it. Im sure you checked it but your wastegate flapper should be sealed tight. My wastegate is so sturdy that I cant open my flapper unless I really push hard.

As far as the bov leaking info I provided before, it was more clearing things up on my end, I dont know if its alright for the bov to leak under uicp cap off or not.... Im still under the impression that it should once the psi turns up.

As I said before, cap off your intake nipple, and go straight from wastegate to jpipe.
Bcs doesnt need capped off, just leave it plugged in (electronically).

 

[gofer]

Sounds like you've got a mess of things in your vacuum lines, do what nek said because the BCS is for use with the stock turbo system. Use this drawing as a guide to hook up ALL of your vacuum lines, ignore the bottom line coming off the bov going to the intercooler piping as its only used for specific applications.

Its also possible, if your running a catalytic converter, that you aren't building boost because its clogged and needs replaced. If you've got a catalytic converter, after doing what was suggest above, and the problem still isn't fixed then pull it and make sure it isn't bad.

You must be logged in to view this image or video.

 

[razrman8]

Why dont you eliminate the bcs and go from jpipe straight to wastegate.. That eliminates one more thing from the system and you really dont need it. Im sure you checked it but your wastegate flapper should be sealed tight. My wastegate is so sturdy that I cant open my flapper unless I really push hard.

As far as the bov leaking info I provided before, it was more clearing things up on my end, I dont know if its alright for the bov to leak under uicp cap off or not.... Im still under the impression that it should once the psi turns up.

As I said before, cap off your intake nipple, and go straight from wastegate to jpipe.
Bcs doesnt need capped off, just leave it plugged in (electronically).

Alright, I'll do that

Sounds like you've got a mess of things in your vacuum lines, do what nek said because the BCS is for use with the stock turbo system. Use this drawing as a guide to hook up ALL of your vacuum lines, ignore the bottom line coming off the bov going to the intercooler piping as its only used for specific applications.

Its also possible, if your running a catalytic converter, that you aren't building boost because its clogged and needs replaced. If you've got a catalytic converter, after doing what was suggest above, and the problem still isn't fixed then pull it and make sure it isn't bad.

You must be logged in to view this image or video.

I wondered the same thing about a clogged cat.. Only thing is everything is rusted. So I cant pull it. But it'd make sense. Not flowing enough.

Would running oped dp tell me anything

 

[MY1GDSM]

Would running oped dp tell me anything

Ya But, I would be carefull (easy on the right pedal) if that was your problem. since you have no Idea what your boost could be at... and would try everthing else that's been said first.

 

[rlacasse1]

Go check if you have exhaust flowing out our tail pipe freely. If you do, then your cat isn't an issue.

 

[razrman8]

Alright. Ill do that.
If any part of the cat that can even be partially clogged is a restriction

 

[rlacasse1]

You'll be able to tell if the cat is plugged to the point where it will really cause a major restriction. If you have exhaust that is pouring out the tail pipe and when you step on the gas the engine is responsive, then more than likely uour cat is not an issue.

I am honestly leaning toward a wastegate or vacuum issue on your car. More toward the wastegate.

 

[razrman8]

I can totally understand thinking that it is a wastegate problem.. But I honestly and 99% its not.. I have been convinced by you guys that it is.. but I am almost certain its not.. A clogged cat would explain why the t25 would spool 7psi. Smaller turbo faster spool

 

[rlacasse1]

If your cat was plugged, it would not let the engine rev. The exhuast would have nowhere to go and it would end up blowing back up through the intake. The car would have no power whatsoever due to it being plugged. I don't see the car being your problem.

 

[razrman8]

Well I guess thers only one way to know. Ill try the other stuff and this also ..

All I can do is try and use process of elimination

 

[gofer]

We were trying to figure out why a built DSM running a FP Red was only building 11psi by 7k and a clogged catalytic converter was the answer.

 

[razrman8]

We were trying to figure out why a built DSM running a FP Red was only building 11psi by 7k and a clogged catalytic converter was the answer.

Right, your convincing me. I feel a loss of power and acceleration all that good stuff

 

[donniekak]

We were trying to figure out why a built DSM running a FP Red was only building 11psi by 7k and a clogged catalytic converter was the answer.

A local guy was only making 2-3 psi no matter what turbo he ran, and boost leak test was fine. I told him to just try running an open downpipe, his boost shot up to normal.

 

[razrman8]

Well guys took it out for a ride with the open dp. AND SHE SPOOLED TO 10+psi!!! Its definitely clogged. I put my hand behind endpipe and wouldnt have thought so.. But I was proved wrong

 

[MY1GDSM]

I haven't ran a cat in so long, I would have never thought of that

Kinda Totaly OT but,not... Just wondering What kind of oil do you Run?

 

[razrman8]

10w-30

Why you ask sir?

 

[gofer]

Well guys took it out for a ride with the open dp. AND SHE SPOOLED TO 10+psi!!! Its definitely clogged. I put my hand behind endpipe and wouldnt have thought so.. But I was proved wrong

Next time I drive through Missouri I'll look you up so you can buy me a beer... I'm glad to hear you found the issue, its very frustrating sometimes when nothing seems to fix the problem.

Certain oils have detergents in them that supposedly clean out the catalyst, telling us 10w-30 doesn't help much its more specific to the brand.

 

[MY1GDSM]

I know it seems Kinda far fetched but... .

Regular gf-4 oils have limited amounts ZDDP because the EPA limited it in them to increase mandated life in Newer 3 way catalytic converter systems

Some of the "racing oils" that have high levels of ZDDP (the main anti-wear additive in oils) Hence the "off-road" Nature of them...

telling us 10w-30 doesn't help much its more specific to the brand.

Also This ^

 

[rlacasse1]

Hmm. Weird. So was the cat just partially blocked or what?

 

[razrman8]

Oh. I just use O'Reilly 10w30 oil. Nothing special. Do you guys recommend something else?

Not sure how clogged it is. I'd take it off but the bolt are rusted. I'm going to exhaust shop tomorow to see if they can make a 3inch cat back, I already have 3inch downpipe with test pipe

 

[MY1GDSM]

Their's pleanty of better oils out their... But that's a whole 'nother thread...

 

[razrman8]

Next time I drive through Missouri I'll look you up so you can buy me a beer... I'm glad to hear you found the issue, its very frustrating sometimes when nothing seems to fix the problem.

Certain oils have detergents in them that supposedly clean out the catalyst, telling us 10w-30 doesn't help much its more specific to the brand.

Ill take you up on that