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Nissan 370Z Forum (http://www.the370z.com/)
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-   -   Fast Intentions Stage 2 TT build by MA-Motorsports. (http://www.the370z.com/forced-induction/126104-fast-intentions-stage-2-tt-build-ma-motorsports.html)

Spooler 07-13-2021 07:33 PM
Quote:
Originally Posted by redondoaveb (Post 4002413)
The FI Stage 1 turbos have a .86 AR turbine housing and the Stage (Seb) have a smaller .82 AR Turbine housing. I assume a larger turbine housing on the smaller Stage 1 turbos brings in more air but what is the benefit of going with a smaller housing on a larger turbo like on the Stage Seb turbos?
The AR is talking about the exhaust housing to intake housing size. T-2, T-3,T-4. T-6 are the housing sizes. That is the frame size of the turbo. Garret GT2860 is using a frame size of T-2. Garrett GT3076 is using a T-3 frame size. The frame size dictates how large the housing is itself. The larger the frame size, the larger the housing. You can run a larger housing with a tighter AR and get more power. That's the simple version.

redondoaveb 07-13-2021 07:47 PM
Quote:
Originally Posted by Spooler (Post 4002428)
The AR is talking about the exhaust housing to intake housing size. T-2, T-3,T-4. T-6 are the housing sizes. That is the frame size of the turbo. Garret GT2860 is using a frame size of T-2. Garrett GT3076 is using a T-3 frame size. The frame size dictates how large the housing is itself. The larger the frame size, the larger the housing. You can run a larger housing with a tighter AR and get more power. That's the simple version.
:icon14: I'm glad you didn't give me the complicated version :rofl2:

Spooler 07-13-2021 08:05 PM
Here is why the FI intercooler is having issues at high HP. Very similar problem. The end caps are tiny.

http://www.youtube.com/watch?v=jHUOzFu0wYY

Spooler 07-13-2021 08:26 PM
A good read. The math behind it.
https://www.garrettmotion.com/news/n...with-rob-dahm/

Spooler 07-13-2021 08:28 PM
More. In depth about AR selection.

https://www.garrettmotion.com/news/n...-turbo-system/

Elmo370z 07-13-2021 08:30 PM
Quote:
Originally Posted by Spooler (Post 4002425)
Whatever, I am not running pump gas unless I have to get home. That's it.
Lol fair enough

redondoaveb 07-13-2021 08:48 PM
Quote:
Originally Posted by Spooler (Post 4002449)
:icon14::gtfo2::rofl2:

Rusty 07-13-2021 09:43 PM
1 Attachment(s)
Quote:
Originally Posted by redondoaveb (Post 4002454)
:icon14::gtfo2::rofl2:
when he talks. Do you see tweety birds floating above your head?

Spooler 07-13-2021 09:56 PM
Quote:
Originally Posted by Rusty (Post 4002461)
when he talks. Do you see tweety birds floating above your head?
I know you get it.

BettyZ 07-13-2021 09:57 PM
Quote:
Originally Posted by redondoaveb (Post 4002454)
:icon14::gtfo2::rofl2:
moar intercooler multiplied by the square root of the earth's diametric circumsized radius minus the shaft = moar horsepowerz. Got it.

Rusty 07-13-2021 09:59 PM
Quote:
Originally Posted by Spooler (Post 4002466)
I know you get it.
I'm used to dealing with them on Very LARGE Engines. :icon14:

redondoaveb 07-13-2021 10:04 PM
Quote:
Originally Posted by BettyZ (Post 4002470)
moar intercooler multiplied by the square root of the earth's diametric circumsized radius minus the shaft = moar horsepowerz. Got it.
See, you explained it perfectly :tiphat: Why couldn't Spooler do that? He had to bring numbers into it. I ain't no gooder with numbers :rofl2:

Spooler 07-13-2021 10:06 PM
Go back and look at the video for a glimpse of the FI intercooler. I have no idea how my car will do but it should do well. How well, I don't know. If I was measuring boost pressure before and after the intercooler I would know what kind a pressure drop I am getting. At high boost I beat I am dropping 2 to 4 psi after the intercooler because of the end caps. That drop creates heat.

Spooler 07-13-2021 10:08 PM
One heck of a journey and I am still learning. If it was easy, everybody would do it.

redondoaveb 07-13-2021 10:09 PM
Quote:
Originally Posted by Spooler (Post 4002476)
Go back and look at the video for a glimpse of the FI intercooler. I have no idea how my car will do but it should do well. How well, I don't know. If I was measuring boost pressure before and after the intercooler I would know what kind a pressure drop I am getting. At high boost I beat I am dropping 2 to 4 psi after the intercooler because of the end caps. That drop creates heat.
Why did they not measure boost pressure before and after the intercooler?


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