I have one, and have it set to 10 sec. (I have a t04e, oil cooled only)

Do I need the TT? NO. I could just sit there for 10 more sec, or drive around the block one more time. I never boost all the way to my driveway, but I do use the volt meter and you know what, it's installed cleanly, with no clutter, and it works. So I use it.

PS: You NEED a blow-off valve to stop compressor surge... simple as that.
No you don't need one that whistles and makes all kinds of seizure-like noises, but you need some escape for back-pressure.

 

Compressor surge under load is way different than surge when nothing is driving the turbine.

 

no matter how much you try to be perfect you will always overlook something and admitting to mistakes is the first part to being humble. of course it was my fault but what wasn't was that i was doing a road test and was at the top end of 2nd gear when it did stick as i coasted in fron't of the owner of the car with the RPM limiter bouncing off the roof. my bad for not noticing, your bad for having useless electronics to risk your safety and your motor.

i already stated first thing in this thread that they are useless for coolant cooled turbos, not oil cooled only turbos.

 

yeah, I hear ya on that. I really don't think there is any NEED for a tt. I have an oil cooled turbo and I don't boost WOT into my drive...

exhaust heat drives the turbine.

 

So in a closed throttle situation when your fuel injectors are OFF and the engine is pumping vacuum there is enough exhaust heat and volume to maintain turbo RPM?

Feel free to pm me your response as I'm done shitting in this thread.

 

That's sig material! Quit shitting all over the forum!!

 

when are you 2 getting married?

 

You argue with everything he says, then put his quote in your signature?

 

there is pressure that gets trapped in the intake track.... thus the huge "SWOOOSH" noise that come out of the BOV. I have mine set pretty stiff, and the back pressure slams that BOV open with ease after a heavy throttle pull.

You motor is pulling a vast amount of air into the motor as the RPM increases, and the need for more air increases. When you suddenly "shut the door" on that, velocity doesn't just dissipate into a nice breeze in the wind.

I would rather that air go out to the atmosphere than to my compressor...

Pretty simple concept.
Are you really saying there is no adverse effect to running no BOV?

 

Why would you be stupid enough to drive with it enabled? Leaving it off until needed is pretty much common knowledge. They're fine where you dont get cooldown laps. Think autocross/strip/drift/etc. Better to let it idle off than not. Using them after street driving is worthless.

 

who brought up BOV's again? i ignored it because it wasn't relevant to the thread.

to answer your question i did say "1/4 mile guys don't run a BOV" didn't i? yes it does hurt the turbo. will it grenade it if you don't run one on a car built for speed that isn't driven daily? yes, it isn't good for the turbo but for performance you ALWAYS sacrifice reliability. i claimed the pros and cons, you only want to argue one side of the pros and cons.

 

my bad, guys... I'm so confused right now [dizzy]

We definitely should've left the BOV talk for another thread... I have no idea if where talking about TT or BOVs now!?