People who have short route ic, come in!

[dub2gsx]

And how could it be the bov, did you read what i wrote, i said when i run vented it sounds great, so it must be the pipes.

I had a simular problem to yours but it was on a 1g bov. When I vented it was fine other than the crappy idle, but I didin't want to vent it. I thought it was everything else but the bov and tryed everything. Then I looked at the bov and noticed that i had accidently blocked off the vaccume hole on the seal with overlapped gasket. Fixed it and now its fine.

It could be something like that or the bov is just jammed. I don't think it's the pipe causing the surge at all. The surge happens when the bov isn't opening and the pressure just goes out the intake pipe and to the turbo causing it to stop too fast.

Brian

 

[mitsuclipsegsx]

Its deff NOT the bov, did it with my type S, vented it sounded great, sold for Brand new type rs same thing, vented great, hose no, so air is being blocked somehow even though it doesnt look like it?

 

[oldman]

Are you tapping the BOV line for the MBC?

 

[mitsuclipsegsx]

i have an ebc, guys its deff the bov,before i installed the fmic i had the hose and it was fine i am 100% no need to suggest bovs, its deff the hose!!

 

[oldman]

i have an ebc, guys its deff the bov!

What's the difference? Are you tapping the BOV line with the EBC?

before i installed the fmic i had the hose and it was fine i am 100% no need to suggest bovs, its deff the hose!!

I thought you just installed the short route uicp with the FMIC?

 

[mitsuclipsegsx]

i did its the sbr short one, i was just saying when i had the greddy one with the hose it was fine casue the hose match up perfectly. about the bov line i dont know what u mean. if you mean is their a line form ebc to bov, yes.

 

[oldman]

i did its the sbr short one, i was just saying when i had the greddy one with the hose it was fine casue the hose match up perfectly. about the bov line i dont know what u mean. if you mean is their a line form ebc to bov, yes.

The line going to the EBC from the BOV line is the pressure signal for the EBC. It's been known that using the BOV line as pressure source can cause issues similar to yours due to pressure bleed off by the boost controller. Try moving the pressure source to another location and leave the BOV line dedicated just for the BOV and see if the situation improves.

 

[daren_p]

Like oldman said, your BOV should have its own source, tape your ebc into your comp housing, lower ic pipe, etc. As for the flutter does it just happen at higher boost? If so have you tried adjusting the valve? You need to losen off the spring if its fluttering under high boost but seems to release under lower boost. If you've losened the screw as far as you can, take the lighter spring out (RS has 2 springs) to give you more adjustment range. You will then have to probably tighten it a few turns from the loosest setting. As for the bov working fine when vented & not when recirculated this doesn't necessary mean it the recirc hose as you have to remember that the setups aren't "exactly" the same in that when you have the bov recirculated you have a vacuum created on the topside of the valve because its attached to the turbo comp houseing via the recirc hose, on a vented setup this isn't an issue.

I have thought quite abit about BOV recirculate setups and how to get the best performance & I think it boils down to getting an HKS SSQV which works physically opposite to most other BOV's.

As for the recirculate hose I took 2 factory recirc hoses and cut them up to use for the curved ends then joined them with a chrome drain jpipe I got from my local hardware store that I just cut to length. A pic can be seen in my gallery.

 

[olmytsi]

Your return line is fine. Look into the bov itself. Either the vaccum line is not giving it enough signal or the bov needs adjustment. I recently switched to a dedicated line for the bov and it works alot better.

 

[mitsuclipsegsx]

I tried what you guys said.

1st pic that the line on bov goes straight to intake manifold(stock location) NOT T ed like it was.

2nd Pic

1, that line goes to the turbo comp
2, goes to side of WG, their is still nothing on the top, am i suppose to put a t in #1
3 shows how high the screw is.

I have been screwing around all day seems like low rpms it sounds normal and high rpms 15psi and above still flutters and i am trying this vented, then will try pipe.


thanks

 

[spectr019]

Well I use the XS front mount also, and I agree with one of the previous responses- I use the stock recirculating tube. I put it on regularly, but it had a really small and tight bend to fit, so what I ended up doing was reversing the tube (connect what used to be the end to the bov and connect it to the intake pipe). Also, I cut about an inch or a bit more off one of the ends so it isn't all scrunched up in there. (I'm also using the RS bov)

Ben

 

[mitsuclipsegsx]

for me the the stock recir is way short, problay casue i have fp intake.also that looks like a greddy uicp, not a short one?

 

[marcell6492002]

You have a hole in your vaccum line that hooks up to the BOV to the Intake. When I had a hole in mine, it made my BOV flutter also!

 

[mitsuclipsegsx]

nope,i checked