ATP Turbo upgrade help

[StealBlueSho]

right, but the hole is only so big, there would be a limit on how much air can flow though that hole before it backs up and causes extra boost.

.... lol.... seems like something I have seen in a movie... on the internet....

 

[FiveLeeter918]

.... lol.... seems like something I have seen in a movie... on the internet....

spit on it you'll be fine

 

[Ryan Selcer]

See it's the responses like this and this


If it's not the information you need then don't respond to it like a **** or even better just ignore it.

Dude your being a crybaby.
You came in and spouted off info that was not asked for and in no way helpful to the question that was asked.
I kindly responded and let you know that it was not what i was looking for but thanks.
YOU decided to go cry about that and literally throw a tantrum through your next few responses.
As YOU just said except this makes alot more sense. If I didn't ask for the information, you should have just not offered it and cluttered the space.

 

[SM105K]

Ok, next dumb question... are our stock turbos capable of producing more boost than the wastegate can flow? and if so what kind of boost pressure would that be? obviously nobody is dumb enough to try this but I'm curious.

Lee could probably drop more technical knowledge about his.

I have seen stock turbos SHO's run 19+ psi with all the support mods. However at that boost level they are out of the compressor efficient zone. Mr. Banks would calls it "the turbo is out to lunch". That is why the GH Turbos or the APT Turbo upgrades are so good.

 

[Jordan_R]

Big mad

 

[SHOsbeforehoes]

On our turbos with impellers the size of a half dollar, definitely no way to exceed the wastegates. Larger turbos with no backpressure, sure you can boost creep as the last of backpressure can prevent the wastegates from doing their job and the turbos will overboost. But not the case here so carry on...

BOOST CREEP, i knew there was a name for it, just couldnt think of it. Only reason i wondered is because of the issues Cleetus McFarland had with Leroy when he put on the second turbo. Again wasn't sure if it was possible on our car but thought id ask.

 

[Ryan Selcer]

Lee could probably drop more technical knowledge about his.

I have seen stock turbos SHO's run 19+ psi with all the support mods. However at that boost level they are out of the compressor efficient zone. Mr. Banks would calls it "the turbo is out to lunch". That is why the GH Turbos or the APT Turbo upgrades are so good.

I was reading about this, it has to do with heat as well, most turbos over a certain psi have too much heat in them and that causes the efficiency to plummet

 

[Jordan_R]

@SM105K @High on Ethanol @FiveLeeter918 @Michigan-SHO

We eating good tonight. I've never seen the bait work so well.

 

[StealBlueSho]

spit on it you'll be fine

I’ve seen that one too!!!! Almost like you have a copy of my browser history!!

 

[FiveLeeter918]

Lee could probably drop more technical knowledge about his.

I have seen stock turbos SHO's run 19+ psi with all the support mods. However at that boost level they are out of the compressor efficient zone. Mr. Banks would calls it "the turbo is out to lunch". That is why the GH Turbos or the APT Turbo upgrades are so good.

Boost is like age, it's just a number that causes a little restriction in your life. Feeling awkward now?

 

[Jordan_R]

Boost is like age, it's just a number that causes a little restriction in your life. Feeling awkward now?

Thank lord my boost is more than 18. Dont need any trouble with the law

 

[SHOsbeforehoes]

@SM105K @High on Ethanol @FiveLeeter918 @Michigan-SHO

We eating good tonight. I've never seen the bait work so well.

The only reason you're using bait is because you blew your car up and now instead of driving all night just to not be able to race at the track you are spending all your free time on the forum.

 

[StealBlueSho]

I was reading about this, it has to do with heat as well, most turbos over a certain psi have too much heat in them and that causes the efficiency to plummet

Not just heat but rpms too... according to the tech specs these turbos are not supposed to spin over 200k rpms. Though the two tend to go hand in hand...

Matt Robinson at gearhead did a whole mapping on the stockers... they are pretty maxed out from the factory if you live in Denver...

 

[SM105K]

I was reading about this, it has to do with heat as well, most turbos over a certain psi have too much heat in them and that causes the efficiency to plummet

They also start cavitating.

 

[Jordan_R]

The only reason you're using bait is because you blew your car up and now instead of driving all night just to not be able to race at the track you are spending all your free time on the forum.

Forum is free and the car is expensive. What can I say lol

 

[Ryan Selcer]

They also start cavitating.

As in causing low pressure pockets that **** up the airflow? That'll cause it to wobble and come apart right?

 

[Ryan Selcer]

Not just heat but rpms too... according to the tech specs these turbos are not supposed to spin over 200k rpms. Though the two tend to go hand in hand...

Matt Robinson at gearhead did a whole mapping on the stockers... they are pretty maxed out from the factory if you live in Denver...

Well luis and lee say it looks like the wastegates are maxing out and dropping the boost. You think its just that they're maxed out with the pressure difference up here?

 

[SM105K]

As in causing low pressure pockets that **** up the airflow? That'll cause it to wobble and come apart right?

Low and High pressure pockets in the airflow from the compressor itself.

 

[FiveLeeter918]

As in causing low pressure pockets that **** up the airflow? That'll cause it to wobble and come apart right?

more so of a choke out, where the turbo is trying to consume more air than the filter/piping can allow. The air in the inlet goes super sonic and just stops flowing.

 

[Ryan Selcer]

Probably got a big ol boost leak somewhere you overlooked

Hmm, I guess I could try to look into it more. I put a vacuum on the wastegate lines and they were good. I do hear a whistling but it seemed to start after I had the airbox off this weekend for the Tranny flush, I thought I just didnt get it all the way back in in the front