FRS / BRZ Intake Manifold - Development Thread - FT-86SpeedFactory by Velox

[Captain Snooze]

Originally Posted by abraxis

If the grooves are just an aesthetic choice, can you ask the machinist to swap the radial machining on the outside for the interior vertical piping? I know you think it won't matter much, but my inner child's flow bench experience would feel more relieved to actually have a proper laminar orientation.

*raises hand*
Sorry,I don't understand your question.
You want the red arrow groves orientated like the black lines?

[Andrew025]

Originally Posted by Sammakko

3D print it... out of unobtanium?

I hear it's not very easy to obtain.

[abraxis]

Originally Posted by Captain Snooze

*raises hand*
Sorry,I don't understand your question.
You want the red arrow groves orientated like the black lines?
Attachment 111053

No, I want the outer concentric rings to replace the inner fluting. The airflow on the outside of the horn shouldn't worry anyone. Let me know if that's still confusing. I can see how you could read my post the other way, should have worded it better.

But since you bring it up, yeah, just swap the inner and outer patterns. That would look most logical to me. Air is actually moving a little horizontally on the outside of the horn. At the very least, it's an attention to detail thing.

[Calum]

Originally Posted by abraxis

No, I want the outer concentric rings to replace the inner fluting. The airflow on the outside of the horn shouldn't worry anyone. Let me know if that's still confusing. I can see how you could read my post the other way, should have worded it better.

But since you bring it up, yeah, just swap the inner and outer patterns. That would look most logical to me. Air is actually moving a little horizontally on the outside of the horn. At the very least, it's an attention to detail thing.

Why would concentric rings perpendicular to the flow path help reduce turbulence? (Serious)

[Captain Snooze]

Tooling patterns on an empty tube
Some grooves that can't be removed
Just an aesthetic feature I don't care
The wait is more than I want to bear
The power and the noise is all I say
It's not much I'm asking to keep it na
I want an intake, I want an intake,I want an intake, and I want it now
I want an intake, I want an intake,I want an intake, and I want it now

Apologies to Brian May and Queen

[ame="https://www.youtube.com/watch?v=hFDcoX7s6rE"]Queen - I Want It All (Official Video) - YouTube[/ame]

[spitfire481]

I wouldn't mind doing back to back dyno runs at 30psi with stock manifold vs this one. would be cool to see if i could make the same power with less boost.

[plucas]

Originally Posted by boredom.is.me

That's exactly what I said.

Yes I know. I was just confirming what you said

[abraxis]

Originally Posted by Calum

Why would concentric rings perpendicular to the flow path help reduce turbulence? (Serious)

That's how you create a boundary layer for laminar airflow. You want air to form little ball bearings for the rest of the volume to glide over. That's what golf ball dimples and shark skin do. Fluting wouldn't do that, in fact it would probably do more harm than good increasing turbulence. Generally speaking that is, and this application may or may not care at 1/10,000th".

[Captain Snooze]

Originally Posted by Tim Radley

Bellmouth is a pretty angry area of the intake system

.

[VerusEric]

Originally Posted by Tim Radley

How far away is this from having some dyno results now?

Bellmouth is a pretty angry area of the intake system with huge flow in both directions at high pressures.

Still waiting for the other 2 heights to show up for testing. I'd say 3 weeks minimum.

[Calum]

Originally Posted by NotEric6

Still waiting for the other 2 heights to show up for testing. I'd say 3 weeks minimum.

My ass is getting sore from sitting on the edge of my seat.

[IBill4You]

Dyno?

[Snake]

Originally Posted by IBill4You

Dyno?

He said 3 weeks, not 3 days...

[midnight23]

Originally Posted by Snake

He said 3 weeks, not 3 days...