Safe tune boost levels

[bigBADbenny]

I believe it's fine for up to at least 20psi... Or mine is

[BlackSTI]

I believe it's fine for up to at least 20psi... Or mine is

Haha, Im glad you have tested and know

What psi do you peak at and have you had any issues?

[bigBADbenny]

Just going by a recent dyno run w/ boost also plotted.
Also via research here and elsewhere. My boost alarm does go off occasionally on the freeway mainly, it's set at 21psi but being a GTBoost gauge, it's probably too accurate .
Ill mention it to my tuner for sure.

[Newbie GT]

Just going by a recent dyno run w/ boost also plotted.
Also via research here and elsewhere. My boost alarm does go off occasionally on the freeway mainly, it's set at 21psi but being a GTBoost gauge, it's probably too accurate .
Ill mention it to my tuner for sure.

BBB didn't you say no more than 18psi on stock engine

[bigBADbenny]

Sure over 22 all the time is the disaster zone.
But the turbo has different response depending on gear, revs speed etc.
Given a choice I'd have that tuned out if possible but it's certainly not holding 21 everywhere all the time.
The gt boost gauge is known to be hyper accurate too perhaps more so than a romraider log.

[JamesR]

thanks for posting legitimate answers Benny.

i know Newbie GT asks a lot of questions, mostly repeated, some dumb, but we're not all guru's like 99% of people here apparently are...

[kiahatsiu]

The gt boost gauge is known to be hyper accurate too perhaps more so than a romraider log.

Whilst I might be no expert, surely the ECU's reading would be much more accurate than the reading of a gauge.

[bigBADbenny]

Of course, but the GTboost gauge auto calibrates itself vs atmospheric pressure on startup, plus it has even greater sensitivity according to the mfg.
info iirc via the GTboost gauge thread on nasioc or LGT.

[kiahatsiu]

Nothing to advance the topic, but I will google and school myself on that thing BBB.

[Newbie GT]

thanks for posting legitimate answers Benny.

i know Newbie GT asks a lot of questions, mostly repeated, some dumb, but we're not all guru's like 99% of people here apparently are...

I ask the questions no one wants too..

Not dumb mate

[KiDo_Tuning]

I believe it's fine for up to at least 20psi... Or mine is

No it is not, vacuum between air filter and the turbo inlet sucks the BOV piston open on the backside as pressure increases on the TMIC side

It wil lstill make manifold pressure but it starts bleeding open and once it closes again... you can end up with boost spikes as the turbo speed is no longer leaking air back into the intake

[kiahatsiu]

I ask the questions no one wants too..

You would have been a hit in biology class.

[Newbie GT]

I ask the questions no one wants too..

You would have been a hit in biology class.

Top student

[bigBADbenny]

It's about time I got to work on some (more) basic sticky's.
Well before Bruce forgets everything he's learned

Next will be Learning View: how what and why... The concise edition...

[bigBADbenny]

I believe it's fine for up to at least 20psi... Or mine is

No it is not, vacuum between air filter and the turbo inlet sucks the BOV piston open on the backside as pressure increases on the TMIC side

It wil lstill make manifold pressure but it starts bleeding open and once it closes again... you can end up with boost spikes as the turbo speed is no longer leaking air back into the intake

Ok:
is that an issue on the stock tune?

Is that otherwise capable of being resolved with a tune and or an upgraded bov?