recirculating bov = no boost

[legacy22]

So I somewhat stated this question before but related it to a header glow which isn't my issue. I am wondering why after recirculating my bov back to my intake between the maf and turbo that this would result in no boost "feel" My aftermarket gauge reads 10psi but feels n/a. Before recirculation it would hit 10psi and feel like boost with stalling and sputtering when cruising. I am in desperate need of help now as my dd broke a cam gear so I need to get this one going good now.

 

[Soccerguy136]

First of all, turbo cars do not have headers, they have manifolds.

Anyway, the car was sputtering and stalling without the bov recirculated most likely because that created a boost leak. It might have no "boost feel" because before, when you had a boost leak, the turbo was "actually" seeing much greater than 10psi, where as now that the leak is fixed, you are feeling an actual 10psi, which really isn't very much on a stock turbo and probably won't feel all that fast to some.

My suggestion would be to use a boost leak tester to find/fix any more leaks. Also, make sure you DO NOT have the aftermarket boost gauge line t-ed into the bov vacuum line.

Are there any other problems associated with the car besides it doesn't "feel fast"? Not trying to be rude or anything, just that everyone sees things differently and just because the car doesn't feel fast at 10psi doesn't mean there is something wrong with it.

 

[Shnizzle]

So I somewhat stated this question before but related it to a header glow which isn't my issue. I am wondering why after recirculating my bov back to my intake between the maf and turbo that this would result in no boost "feel" My aftermarket gauge reads 10psi but feels n/a. Before recirculation it would hit 10psi and feel like boost with stalling and sputtering when cruising. I am in desperate need of help now as my dd broke a cam gear so I need to get this one going good now.

Yup with these cars the first thing you have to look for is a boost leak. If you want more boost get a manual boost controller and turn it up just a little maybe 13-14 lbs

Keep your bov recirculated and don't get that controller until you are sure if no leaks. Getting some ngk spark plugs and gaping them couldn't hurt either!

 

[slickers111]

The BOV not being recirculated wont cause the car to sputter or stall while cruising. If you get on it, then let completely off the throttle, then it may bog. Or if you rev it in place, then it could stall. Ive always ran my car non recirculated and havent had any issues while driving.

You will want to check for leaks. Make sure all clamps are tight, wastegate rod is on, all vac lines are on and not cracked, and also look at the injectors. If theyre leaking from there, youll see some gas around them.

Have you tried taking the re-circ tube back off to pin point it, as that being whats causing the no boost feel?

 

[russ96gst]

Not always true, every car is different. Your car may seem to drive fine, but you ARE running pig rich when you shift. I did it for years, (until I learned better) as soon as I put it back on it was like night and day in it driveablity.

 

[slickers111]

After shifting, AFR would hit 12.3-12.7. Im not concerned with that.

 

[legacy22]

First of all, turbo cars do not have headers, they have manifolds.

Anyway, the car was sputtering and stalling without the bov recirculated most likely because that created a boost leak. It might have no "boost feel" because before, when you had a boost leak, the turbo was "actually" seeing much greater than 10psi, where as now that the leak is fixed, you are feeling an actual 10psi, which really isn't very much on a stock turbo and probably won't feel all that fast to some.

My suggestion would be to use a boost leak tester to find/fix any more leaks. Also, make sure you DO NOT have the aftermarket boost gauge line t-ed into the bov vacuum line.

Are there any other problems associated with the car besides it doesn't "feel fast"? Not trying to be rude or anything, just that everyone sees things differently and just because the car doesn't feel fast at 10psi doesn't mean there is something wrong with it.

Well as of right now it drives good, just doesn't feel boosty. Like my 2.2 Subaru feels faster. And according to my aftermarket boost gauge ran to the p port on the intake with nothing teed off from it before it was 10psi and its still 10psi. Feels completely powerless after recirculating. And the only other issue I have noticed since recirculating is it likes to idle at 2k after driving it. It idled fine if I shut it off and start it back up

 

[Turbowrx 32]

Might wanna take a look at the BOV itself to make sure its not stuck open? It could be a starting point. How old is the turbo possible crack in the wastegate flapper?