double barrel

I was wondering if i should be building postive boost pressure when i rev in neutral. Also if i reduce the backpressure in the exhaust will the secoundary ports open when they should PLS help?

SonicRaT

iTrader: (6)

If you have a turbo, you don't have any auxilary ports to worry about. Appleton isn't too far away from where I'm generally at (upper michigan). Anywho, generally you can get a little bit of positive boost if you rev/decel/rev really fast on the stock exhaust.

J-Rat

iTrader: (2)

Shoot, I could build about 5-7 psi on a free rev..

SonicRaT

iTrader: (6)

Stock exhaust with cats/etc? I could never get much more than 1-2, till it was opened up.

J-Rat

iTrader: (2)

Oh..Duh.. that wasnt on a stock exhaust.. My bad.

double barrel

I runnin 3inch with no cats

RETed

No, unless you're revving it pretty damn hard.
Turbos produce boost via engine load.
Since an engine revving in neutral has very little load, it will not produce that much boost.


-Ted

double barrel

would it be enough to here the bov sound

SonicRaT

iTrader: (6)

Depends on how tight the BOV is, I can get my BOV to sound on all of my turbo vehicles in idle. I've got a TurboXS RFL and a Greddy Type S. Neither are sprung very tight (just a hair before they start leaking)

powrdby13B

ya.. i find it to be difficult unless you lighten the flywheel... then your rpm's go down faster (and up...) and generally the more power you have the more you can hear it (duh... debating deleting that)

RETed

As SonicRat mentioned, it depends on how the BOV is adjusted.  If the BOV is tight, you will probably NOT hear it.  If it's loose, it should go off.  If the BOV has an adjustment screw, back it all the way out, and it should go off.


-Ted