Setting Up The Turbosmart Dual Port BOV

[ncspeed21]

umm i get flutter, backfiring and popping!! time after time i tried setting it right but it just seems to not work. the backfiring will go away but seems to come back after i drive a couple miles

 

[Sphincter]

umm i get flutter, backfiring and popping!! time after time i tried setting it right but it just seems to not work. the backfiring will go away but seems to come back after i drive a couple miles

Maybe yours is set too tight, I get no flutter and no backfiring with mine.

 

[RichB]

umm i get flutter, backfiring and popping!! time after time i tried setting it right but it just seems to not work. the backfiring will go away but seems to come back after i drive a couple miles

If you have backfire and popping that means that you are set too loose. On partial throttle releases you will get flutter no matter what. The flutter should go away when you are shifting aggressively.

 

[Speed3ForMe]

I'm not too sure if I'm set too loose either but say im at 60 in 6th, I then downshift to 5th, which is around 3000RPM at 60mph if I remember correctly, and I WOT, I get hesitation before the car begins to go. Is this a BOV/BPV problem or maybe an intake problem?


Mods are,
Turbosmart Dual Port
CP-e Nano Intake
CP-e Turbo Inlet

If you have backfire and popping that means that you are set too loose. On partial throttle releases you will get flutter no matter what. The flutter should go away when you are shifting aggressively.

 

[Speed3ForMe]

Also, if set to max hard, do it mean that when shifting or getting off the throttle, the air won't recirculate?

And max softness means that air will recirculate easily?

I'm trying to understand what hardness and softness does for the valve.

 

[Sphincter]

I'm not too sure if I'm set too loose either but say im at 60 in 6th, I then downshift to 5th, which is around 3000RPM at 60mph if I remember correctly, and I WOT, I get hesitation before the car begins to go.

Ugh, I'm trying to get this as right as posible too. I had that bit of hesitation at first, but then I tightened the valve a little and it seems now that there is no hesitation, or at least it has been minimised. Maybe try that, see if it helps.

 

[ncspeed21]

haha why is this so haaard?
i have an cobb sri, cobb inlet and cp-e catted downpipe if that matters?

 

[Sphincter]

It's not hard at all. It makes it hard when you don't know where the sweet spot is. See when I first got the valve it seemed like it was adjusted pretty well, but then one day I tightened it up to see what the difference was and noticed a bit of hesitation between shifts went away.
I think what everyone is trying to do on here, is really to find that sweet spot for optimum performance. Any monkey can twist the top to "adjust" it, but how do you know when you have it just right? Plus it doesn't help that you can't notice the difference immediately, Turbosmart says it takes up to two weeks to 'fully' adjust.
I seen somewhere it says that with partial throtle release you should get a valve flutter. Is that true? Mine doesn't, so does that mean mine is set too soft? Either case I'm holding a healthy 16psi through the gears, hitting 17-18 in fifth. Any good suggestions?

 

[RichB]

If you get a hesitation I think that is a sign that you are set too loose. Try tightening it up.

it does take a while to get things adjusted correctly. I am noticing a difference in performance with the change of the seasons so you have to keep on top of it.

if you don't get flutter on partial throttle releases that is perfectly fine. i would still try and tighten it a little to get on the borderline of it starting though. i'd be worried that in WOT it would be releasing slightly too early, but thats just me.

 

[ncspeed21]

adjusted it harder( that sounds wrong lol) and it feels much better, flutter disappeared and no backfire!! well sometimes but not as bad.
thanks for the help