Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   Stillen BOV (http://www.the370z.com/forced-induction/89047-stillen-bov.html)

Alkatraz 05-09-2014 06:59 PM
Mmmmmmmm Aussie made goodness!

(Probably made in China actually but at least its an Aussie company :P)

BlkNismo 05-27-2014 06:02 PM
Any updated vids with the dual port at idle and running thru the gears?

future370zzz 05-27-2014 06:40 PM
^My tuner was not able to run a 50/50 vent to atmosphere with the Stillen SC and Turbosmart Kompact dual port. The venting created issues with the tune and driveability. It's set to fully re-circulate. No pshhhhhh sounds. :( Car runs great though.

EVOHUNTER, did you need to get your ECU re-tuned or did you just tinker with the knob on the top of the BPV until it was venting and idle was OK.

Doesn't the BPV suck in unfiltered air as well?

future370zzz 06-05-2014 01:39 PM
Quote:
Originally Posted by Kyle@STILLEN (Post 2801053)
I re-read my post and realized it wasn't very clear. Sorry for the confusion. What I should have said is that if the BOV isn't setup correctly, and you are traveling at low speed such as in a parking lot you might experience a stalling or stumbling. However, this is only if the BOV isn't properly setup.

With that being said, the great thing about the Turbosmart BOV is that it's a dual port. So if you're just cruising through the parking lot it's actually still recirculating. It only vents to atmosphere when there is sufficient pressure to open the valve further so that it reaches the next level.

Product | Kompact Dual Port Universal Fit | Turbosmart USA
For us guys still on full re-circ, any tips for how to set venting to atmosphere and re-circulation? Do you just go half way on the top of the bpv, rev the motor, and repeat until it idles OK, AFR are stable and no stalling?

At what RPM should the BPV vent to atmosphere?

At what PSI should the bpv vent to atmosphere? Should we

ART_Auto 06-05-2014 01:40 PM
Just a thought, could you not run a twin piston dump valve? That would stop the idle/stall issues and vent to atmosphere. Something like a r-spec type B or an HKS SSQV.

ANMVQ 06-05-2014 02:12 PM
I had mine installed the same time I did a handful of other things so I was getting retuned anyways, But I would think I same adjustment would be needed since this is pre-MAF location.

1slow370 06-05-2014 02:34 PM
Quote:
Originally Posted by future370zzz (Post 2836130)
^My tuner was not able to run a 50/50 vent to atmosphere with the Stillen SC and Turbosmart Kompact dual port. The venting created issues with the tune and driveability. It's set to fully re-circulate. No pshhhhhh sounds. :( Car runs great though.

EVOHUNTER, did you need to get your ECU re-tuned or did you just tinker with the knob on the top of the BPV until it was venting and idle was OK.

Doesn't the BPV suck in unfiltered air as well?
Did you check to make sure the air horn and bypass nipple were on the right sides of the valve? they could have sent it with them switched. the lower port should be the recirc and the upper port should be the vent. after that you may have to set the spring tension on the cap.

future370zzz 06-05-2014 02:42 PM
I did not check it out yet. My tuner installed everything for me. No garage and time to do the work.

Is it correctly setup from the posted at the top of the page? I can check the BPV and see if it matches. Didn't know that the BPV could be installed incorrectly or put together incorrectly by Turbosmart.

gussyturbo z 06-05-2014 06:17 PM
Quote:
Originally Posted by EVOHUNTER (Post 2799549)
I vented mine too, runs actually better now at idle, The weakest setting it would idle at 12.1-12.8, I set it in the middle. Runs really good. My car would go from 13.9 -14.8, kinda jump around, now it doesn't stray from 14.4 -14.8. It sounds really good under high load. Im happy with it! When the setting was to stiff, it would almost shutter the bypass valve, and almost surge back towards the blower, I could clearly hear it. I loosened mine up and that went away.
Hey I just vented mine out sounds awesome! I also have the same afr numbers. But I wonder if I'm loosing boost this way?

future370zzz 06-05-2014 06:28 PM
Quote:
Originally Posted by gussyturbo z (Post 2848164)
Hey I just vented mine out sounds awesome! I also have the same afr numbers. But I wonder if I'm loosing boost this way?
I wonder how it will affect the car during WOT runs, between quick shifts when the BPV opens and shuts. Hope it doesn't hurt the engine.

How is it set? Halfway?

gussyturbo z 06-05-2014 07:29 PM
Quote:
Originally Posted by future370zzz (Post 2848172)
I wonder how it will affect the car during WOT runs, between quick shifts when the BPV opens and shuts. Hope it doesn't hurt the engine.

How is it set? Halfway?
I tightn it all the way then I back it out a half. At about 7k rpm my afr was at 10.9. But I did notice at high boost and around 7500 rpm you could hear it. So how can that not be loosing boost? That's my question? If it's venting when your stepping on it then that would mean that your loosing right? Anybody chime in if you can! Guess I'm confused.

future370zzz 06-05-2014 07:40 PM
Quote:
Originally Posted by gussyturbo z (Post 2848229)
I tightn it all the way then I back it out a half. At about 7k rpm my afr was at 10.9. But I did notice at high boost and around 7500 rpm you could hear it. So how can that not be loosing boost? That's my question? If it's venting when your stepping on it then that would mean that your loosing right? Anybody chime in if you can! Guess I'm confused.
If you hear the air escaping from the BPV while you are on the throttle then it is definitely losing boost. It's only suppose to release pressure when you left off the gas and there is a backup of pressure.

ANMVQ 06-06-2014 08:46 AM
Yea for sure, I wasn't losing any with mine, 11 PSI right away and 12PSI upper RPMS.

ART_Auto 06-09-2014 03:10 PM
FYI.

I fitted a Spec R Type B twin piston blow off valve which is a straight swap for the Stillen supplied one. Works perfect, perfect idle and sounds great.

1slow370 06-09-2014 06:22 PM
a supercharger bypass vavle is usually open at idle and low load conditions as well when pressure in the manifold is a set amount lower than pressure in the pipe. so if you give it a fair amount of throttle the valve will shut and build boost until you you close the throttle and the pressure difference between the pipe and the manifold rises. By changing the spring or turning the cap you adjust at what pressure difference this happens at.


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