ATP Turbo upgrade help

[SM105K]

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?

Lee said it isn't looking like a boost leak in the logs. You are probably in the same boat that I am. Brad says my turbos are probably worn out. They just dont make the sustained boost over the rpm that new ones do. Add the altitude in, and that is probably the bulk of your issue.

 

[Ryan Selcer]

Lee said it isn't looking like a boost leak in the logs. You are probably in the same boat that I am. Brad says my turbos are probably worn out. They just dont make the sustained boost over the rpm that new ones do. Add the altitude in, and that is probably the bulk of your issue.

I go up to 8k+ sometimes, is there anything I can look for that would tell me this. Lee has taken me through some testing and thus far thats what things look like. But I know the altitude can play alot of tricks
The turbos do have 116k on em

 

[SM105K]

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.

Exactly, think of overspinning a motorboat prop in water. There is a point you can spin the prop so fast, it will not move any water at all. Same thing with a turbo compressor and air.

 

[SHOsbeforehoes]

They also start cavitating.

I went to school for Motorcycle/Personal watercraft repair and had heard how detrimental cavitation can be to the impellers on jet skis/jetboats in the water. I find it really interesting to know, and it makes sense, that a turbo (spinning many thousands of times faster) can do this too.

 

[SM105K]

I went to school for Motorcycle/Personal watercraft repair and had heard how detrimental cavitation can be to the impellers on jet skis/jetboats in the water. I find it really interesting to know, and it makes sense, that a turbo (spinning many thousands of times faster) can do this too.

If you really want to learn some cool stuff. Watch this series. Mr. Banks crushed it.

 

[Jordan_R]

If you really want to learn some cool stuff. Watch this series. Mr. Banks crushed it.

I love that series. Super technical.

 

[SM105K]

I love that series. Super technical.

Yeah I thought I was well versed in turbo knowledge, I am learning a ton from that series in a technical sense.

However it makes me really wonder about how efficient the EPP intake really is being under the hood and not shielded.

 

[StealBlueSho]

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?

Well... I mean... Luis does this stuff for a living. So your options are...

A: Trust your tuner.
B: Get a different tuner hoping for different results.

I haven’t seen your datalogs (and I don’t want too at this point) to even guess at what is going on. If I had nickel of every time someone said “I’m dropping boost” then it would have cost me nothing to build my car....

If this whole post is because of this statement, then geeze.... if you question your tuner this much, maybe it’s time to try someone else?

 

[Ryan Selcer]

Well... I mean... Luis does this stuff for a living. So your options are...

A: Trust your tuner.
B: Get a different tuner hoping for different results.

I haven’t seen your datalogs (and I don’t want too at this point) to even guess at what is going on. If I had nickel of every time someone said “I’m dropping boost” then it would have cost me nothing to build my car....

If this whole post is because of this statement, then geeze.... if you question your tuner this much, maybe it’s time to try someone else?

Thats not at all whats going on so...

 

[StealBlueSho]

Thats not at all whats going on so...

Has Luis or Lee provided guidance on what to look for and where to trouble shoot?

 

[SM105K]

Has Luis or Lee provided guidance on what to look for and where to trouble shoot?

They have, pretty sure he has worn out turbos. The Denver altitude is not helping that matter either.

 

[Michigan-SHO]

They have, pretty sure he has worn out turbos. The Denver altitude is not helping that matter either.

Would you say it would be more beneficial for him to add upgraded turbos just to offset the difference in oxygen density up there? Such as ATP TURBOS (see how I brought this train wreck back on track haha).
Looking for an opinion, as a casual conversation not strictly facts.


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[stripSHO]

Ryan Selcer sure asks a lot of questions here for a wannabe know-it-all who’s deathly afraid of anyone trying to tell him something. Plus, “the internet is a lie” and he can’t comprehend a damn thing you put in front of him, so pointing to informational resources is pointless as it just offends him. If he actually had any grasp on turbo system design and application he wouldn’t be here begging for validation to some dumb question and lashing out like a bratty bitch to absolutely everyone.

What’s the factory wastegate spring for these cars... 3 psi? 4 psi? And 15 psi boost only takes what... 60% WGDC? Yet little Damien here spouts ignorance like “you can only boost to 2x wastegate pressure” and has the nerve to call everyone else ********!

 

[SM105K]

Would you say it would be more beneficial for him to add upgraded turbos just to offset the difference in oxygen density up there? Such as ATP TURBOS (see how I brought this train wreck back on track haha).
Looking for an opinion, as a casual conversation not strictly facts.


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Yes the upgraded turbos would be better for altitude. They can help tip the scale with the air density problem, by flowing more air. Also, this train wreck happens every so often, I am starting to enjoy them more and more.

 

[stripSHO]

Brad is amazing when it comes to pushing the limits

Sure is. Everyone fixated on Jordan’s bent rod when he broke, but the broken ring land was shrugged off. I smell pre-ignition...

 

[Michigan-SHO]

Yes the upgraded turbos would be better for altitude. They can help tip the scale with the air density problem, by flowing more air. Also, this train wreck happens every so often, I am starting to enjoy them more and more.

I was involved with your first one with Ryan. That was my first foray into keyboard warfare. It’s entertaining as ****. It makes a boring slow day at work much better.


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[stripSHO]

They also start cavitating.

You can’t cavitate air my dude

 

[SM105K]

You can’t cavitate air my dude

Would rarefied be the correct term?

 

[Ryan Selcer]

Ryan Selcer sure asks a lot of questions here for a wannabe know-it-all who’s deathly afraid of anyone trying to tell him something. Plus, “the internet is a lie” and he can’t comprehend a damn thing you put in front of him, so pointing to informational resources is pointless as it just offends him. If he actually had any grasp on turbo system design and application he wouldn’t be here begging for validation to some dumb question and lashing out like a bratty bitch to absolutely everyone.

What’s the factory wastegate spring for these cars... 3 psi? 4 psi? And 15 psi boost only takes what... 60% WGDC? Yet little Damien here spouts ignorance like “you can only boost to 2x wastegate pressure” and has the nerve to call everyone else ********!

Dude i literally ASKED that question. You are spouting nothing but nonsense I never said any of that youre making it up. Idk why you're so mad anyways, just cause you don't like being wrong for once in your life? Grow tf up little girl

 

[SM105K]

I was involved with your first one with Ryan. That was my first foray into keyboard warfare. It’s entertaining as ****. It makes a boring slow day at work much better.


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100% correct. My day has flown by.