ATP Turbo upgrade help

[Ryan Selcer]

As I said before, the 7psi spring is still used on ATP and GH Gen 3 turbos, both of which see 20+ psi so the 2x wastegate spring pressure rule doesn't apply here.

And I apologize for misusing the word lag, I was referring to part throttle lagging not wot spool time.

Ok, I see, thats part of why im asking because this specific stuff can't really be searched for. Id like to know how they are able to beat that rule other than just because of the size of the turbos and the pipes. Like I was telling you, I figure if im replacing the gates I might as well upgrade the springs for future mods. I understand how it will cause problems with tuning on the low end so for now I won't do it. But when I start tracking the car I very well might.

 

[Ryan Selcer]

Hi, it's me 20psi on 7psi springs. Well was. Boom boom

See man my problem was you trying to tell me what to do. I get that it was good natured and a but you expected me to just be like oh ok I can get 20psi with 7psi wastegate spring. That wasn't what I was looking for. I was just looking for responses to those two questions. And you came in here ASSUMING what I was looking for.

 

[StealBlueSho]

As I said before, the 7psi spring is still used on ATP and GH Gen 3 turbos, both of which see 20+ psi so the 2x wastegate spring pressure rule doesn't apply here.

And I apologize for misusing the word lag, I was referring to part throttle lagging not wot spool time.

Yup, you have to order the 7psi spring for the ATP’s. If you just order them, they come preset at 1bar. That is what ATP told me when I called them 18 months ago.

LMS secret sauce for the ATPs was asking for a 7psi spring as opposed to the default setup... and then they marketed it as “Custom ATP Turbos” ha!

 

[High on Ethanol]

Typically wastegates are used to regulate speed to an extent. But with the turbos being so small and internal, im not sure changing springs would affect anything beyond low to mid throttle tuning.


The wastegate duty cycle may help answer your questions about exceeding double spring boost

 

[Jordan_R]

See man my problem was you trying to tell me what to do. I get that it was good natured and a but you expected me to just be like oh ok I can get 20psi with 7psi wastegate spring. That wasn't what I was looking for. I was just looking for responses to those two questions. And you came in here ASSUMING what I was looking for.

I didn't tell you to do anything but you still wanna clown because I got plenty of time today

 

[Ryan Selcer]

Typically wastegates are used to regulate speed to an extent. But with the turbos being so small and internal, im not sure changing springs would affect anything beyond low to mid throttle tuning.

Thats the kind of info I was looking for. Thats why I got mad at you, if you don't actually wanna help then don't lol. But yes it appears due to the size of the turbos, the piping, and the internal wastegate, the spring is really pretty irrelevant in our setup, you need to just go with "stock" spring pressure

 

[Ryan Selcer]

I didn't tell you to do anything but you still wanna clown because I got plenty of time today

Well yoh assumed that just because of what you told me I'd be like "ok ill just go get the 7psi springs" I was looking for other information, not just whats best for this car

 

[High on Ethanol]

I didn't tell you to do anything but you still wanna clown because I got plenty of time today

Its hot AF, I ain't doing shit all day but finger banging the keyboard

 

[Jordan_R]

Its hot AF, I ain't doing shit all day but finger banging the keyboard

Why are you even responding that's not even what I asked

 

[Ryan Selcer]

Yeah so you assumed that because your tuner told you not to get heavier springs that I would just listen to that. I understand the tuning at the low end and thats why i still said thanks, but reguardless of anything else. Your reasons in no way shape or form answered whether a spring will cause lag or effect max boost. I broke it to you nicely and you wanted to cry over it. I still don't understand what I said that offended you so much

 

[SHOsbeforehoes]

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.

 

[SM105K]

Thats the kind of info I was looking for. Thats why I got mad at you, if you don't actually wanna help then don't lol. But yes it appears due to the size of the turbos, the piping, and the internal wastegate, the spring is really pretty irrelevant in our setup, you need to just go with "stock" spring pressure

You can stay with the stock spring weight. Most spring weight with a boost controller can be tripled.

 

[Ryan Selcer]

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.

The wastegates are a regulator for the turbo. There is no "flowing more than the wastegate can flow" it only opens up to release excess pressure on the system. So as soon as it opens it releases that pressure.

 

[Jordan_R]

Yeah so you assumed that because your tuner told you not to get heavier springs that I would just listen to that. I understand the tuning at the low end and thats why i still said thanks, but reguardless of anything else. Your reasons in no way shape or form answered whether a spring will cause lag or effect max boost. I broke it to you nicely and you wanted to cry over it. I still don't understand what I said that offended you so much

No. Please point out the assuming part or are you assuming I'm assuming? The logic is outstanding. Like Easton said your replying is abrasive as heck. You come off like a spoiled brat. People are trying to help you so quit running them off with condescending responses.

 

[Ryan Selcer]

No. Please point out the assuming part or are you assuming I'm assuming? The logic is outstanding. Like Easton said your replying is abrasive as heck. You come off like a spoiled brat. People are trying to help you so quit running them off with condescending responses.

How exactly were you trying to help me when you were supplying me with information that was not asked for?

 

[FiveLeeter918]

The wastegates are a regulator for the turbo. There is no "flowing more than the wastegate can flow" it only opens up to release excess pressure on the system. So as soon as it opens it releases that pressure.

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...

 

[Ryan Selcer]

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...

Sorry, I should have been specific in telling him I meant on our setup thanks for clarifying that

 

[SHOsbeforehoes]

The wastegates are a regulator for the turbo. There is no "flowing more than the wastegate can flow" it only opens up to release excess pressure on the system. So as soon as it opens it releases that pressure.

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.

 

[Jordan_R]

How exactly were you trying to help me when you were supplying me with information that was not asked for?

See it's the responses like this and this

Thanks Jordan but that doesn't in any way shape or form answer anything I asked

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

 

[Ryan Selcer]

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.

As Lee said, in our setup, the turbos are too small and the pipes too big to "overload" your wastegate