MSP Turkey: FACTS

[505zoom]

Okay, so you guys are getting a little bit of whoosh running the stock BPV with the new lines or not?

The stock msp setup has a lot of problems that are contributing to the surge. I have moved the valve to a better spot, upgraded it, took away the restrictive return, and improved the vacuum source. All this and I still have audible surge. It has gotten way better, but still there.

So it really should be no surprise to any of you running the stock BPV and injen that there is still surge. It will take a lot of changes to kill your turkeys.

 

[SoniCraze]

So you removed the return to the intake? and where did you move it to? i mean the from the intercooler to the bov? where did u tap that in.

hrm.........anyone with a 3" downpipe and a injen notice any dfference?

 

[Zray]

Someone mentioned that compressor surge is bad - exactly what parts does it damage, and if it's fixed, how much of a performance boost would be gained?

 

[Delivery_Guy]

You gain one grateful turbo.

 

[505zoom]

So you removed the return to the intake?

Yes

and where did you move it to?

To a shelf in my garage.

hrm.........anyone with a 3" downpipe and a injen notice any dfference?

Check out my sig 3" turbo-back

 

[SoniCraze]

from the pipe above the intercooler, it currently feeds to the bov. Did u change that location?

 

[505zoom]

You should not change that location. Just remove the hose from the return on the injen, and stick a plug where you took the hose off of. I already did awhile ago when I got the SSQV.

 

[SoniCraze]

hrm.....i think im confused. Are you talkin about the line that runs from the top of the motor to the CAI? I was refering to the line your BOV is on, well was on stock.

 

[505zoom]

No, hold on a minute...

 

[SoniCraze]

is richie rich your aim name? if so get on dawg.

 

[505zoom]

Okay this is kinda crude, but it might help ya out. I even used your pic. I am on the IM now.

 

[SoniCraze]

ya ok them we were on the same page. If i remove the BOV from the return and cap it off i stall when idle after runnin past 3k rpm. I was refering to enlarging the line comming off the I/C pipe. The first LEAVE THIS circle on the left.

If you enlarged that maybe that could help with gettin more air to the bov before backspinn. Also the angle that its at is kinda akwards. if pressure is coming back up the pipe to the i/c then it would have to take a little turn to make it to the bov...i dono maybe not..


Anyway ya, dont see a richie rich on aim.

 

[505zoom]

The only way to enlarge that would be to buy some hard pipes. I agree that it is an awkward angle for the air to travel.

It says you're sleeping on AIM... Try getting on and I'll hit you up.

 

[instylz]

Hey 505zoom would it be possible to create a full writeup with detailed pictures for what you did? I know its a lot to ask but if you had pictures to outline each step it would help out us less tech savy individuals. Great work man I'm sure this issue will be taken care of soon. At least we are in the right direction and progress has been made. Thanks

 

[Zray]

Once we've gotten the turkey eliminated and our turbos sounding like Little Beavis's I'd be happy to lend my technical drawing skills to help with the write-up of the how-to.

 

[CustomMSP]

I just got myself a 1g DSM BOV. I'll see if I can retrofit that to my car. Should be an interesting project.

 

[505zoom]

THAT DID IT!!!!!

I ran the stock BPV open vent, and the only problem was that it stalled from letting it drop to idle from even just above 1000rpm. So I recirculated the stock valve, and bingo, no stalling, NO TURKEY.

HAHA, I am soooo stoked right now, thank you guys so much for all the suggestions.

I'll work on a "How-to kill the turkey", but really all you guys running the stock setup with the injen have to do is get an HKS SSQV on a hardpipe and give it it's own line. Leave your stock valve alone and in place, the way I have it setup is exactly like the stock setup, vacuum lines and all.

 

[Zray]

Awesome =) video?

 

[Little Beavis]

Compressor surge sucks, but that is what it is. . .you need to get that thing screaming.

http://www.mazdamp3.com/vbb225/showthread.php?s=&threadid=32189&highlight=sound+of+music

That is a thread of clips of my car. I found that I had the turkey until I loosened the BOV WAY, WAY up and then gave it a signal straight off the manifold and nothing else. I know the Greddy Type S is sensitive to the vacuum input. I don't have a MSP, but a MP3 w/ turbo. . .and in the end, they're all the same.

505, your car sounds good (exhaust), but that is definitely compressor surge.

So, you are now running the aftermarket BOV with it vented and a dedicated vacuum line? Sounds like a plan. . .you HAVE to love that sound! Good save. . .it is all about providing the air with an easy exit! (Funny that you still use the stock, but it makes sense, very cool.)

And as for those saying: anyone with an MSP? You haters!

There is really no difference between what I have and what you have, except I don't have the damn turkey! But if you do as

 

[505zoom]

I posted this in my thread in the msp section, but there are a lot of others who are checkin out this one:

http://www.mazdamp3.com/members/505zoom/mov00533.mpg

I put the mic right next to the air filter to hear what is really going on, and you can hear a tiny bit of surge. It is not audible from inside the car, even with the windows down.

The major difference is in the partial throttle lifts with the clutch still engaged, the surge was massive with just the HKS but now it's completely gone.

I think this it folks, R.I.P. turkey.