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

[Nah]

Originally Posted by yo joshman

what intake system is this ? looks like a toned down version of the griffon center intake

GRMN 86 intake. Could be anotha name for griffon i'm not to sure...

[srscion]

I'm seriously working on something. I while it would help to have the engine if there is any engineering data available for the surrounding sheet metal of the engine bay or even the air box that would be helpful. I apologize if I disrupted anything in this discussion.

[Dr. BRZ]

Bump bump bump

[Dr. BRZ]

Originally Posted by AceHeader-MT

With the utmost respect to Velox and FT86SF we don't want to hijack this thread.

We're crossing the Pacific in a few weeks to make sure we actually have something. Prototypes have been in development for a few months now with an unnamed tuning shop

Please don't clutter this thread, we'll create one if/when we feel we have something worth talking about

Like everything else from ACE, it'll probably take longer then we expect...

Is it finished?!

[Dr. BRZ]

Originally Posted by Nah

Here you go Velox your next test...

Who is the creator of that manifold?!

[VerusEric]

Originally Posted by Dr. BRZ

Bump bump bump

We made a few variations to the intake manifold; with none of them performing better than factory throughout the power band. We either gained power in the mid-range and lost up top; or lost mid-range and gained up top. I personally believe the OEM manifold is designed quite well at this point and the longer I stared at it; the more it made sense why we could not improve upon it throughout the rev range.

Thanks,
Eric

[srscion]

I went a different direction and did a motor swap. A Toyota 2AZ-FE. (Scion tC motor)

[Lantanafrs2]

Beautiful job!

[JDKane527]

Originally Posted by VerusEric

We made a few variations to the intake manifold; with none of them performing better than factory throughout the power band. We either gained power in the mid-range and lost up top; or lost mid-range and gained up top. I personally believe the OEM manifold is designed quite well at this point and the longer I stared at it; the more it made sense why we could not improve upon it throughout the rev range.

Thanks,
Eric

Was the factory intake the plastic intake manifold or the aluminum intake manifold?

[johan]

Originally Posted by JDKane527

Was the factory intake the plastic intake manifold or the aluminum intake manifold?

Plastic, the aluminum one didn't exist when they were doing active development on this piece.

[VerusEric]

Originally Posted by JDKane527

Was the factory intake the plastic intake manifold or the aluminum intake manifold?

Plastic, although overall the plastic and the aluminum intake manifold externally appear very similar. I doubt there is much difference honestly.

We are not the first to attempt an intake manifold, and I know a few have tried after us. She is not simple. I'm not convinced that ITBs will generate a large improvement in the powerband either yet.

We even ran the OE manifold and our manifolds on a flow bench with various bell horns, runner lengths, and overall designs trying to figure out where our unit was not flowing as well with confusing results to say the least.

I hope someone figures out an improved unit in the end though. I'd like to learn where we went wrong for future projects. Again, my hats off to the OE engineers on this one.

Thanks,
Eric

[churchx]

VerusEric: my guess on where it went wrong:
1) it wasn't bottleneck like eg. filter part, where improvements are noticeable everywhere
2) it might have needed according ecu tune changes (like some long tube headers eg. ace's, that performed bad with stock & canned stage2 tunes for other headers)
3) maybe it's not just about shape, but also different inner surface finish?

[Lantanafrs2]

^ they tuned the shit out of it from what I recall. It was a nice looking design too.

[PulsarBeeerz]

The JUN IM made more power but it was above the oem valve train tolerance. So one company kinda did it??