custom stainless intake

[fc7even]

My custom stainless lobster back N/A intake

[RICE RACING]

very nice welding, great work.

[WankelsRevenge]

I would love one of these, but fiberglass wrapped to help keep intake temps down.

[fc7even]

I can sell you this one if your interested? All i have to do is weld the flange on yet. Its cut already just need to weld it on

[GySgtFrank]

I hate to point this out, as you've done so much nice work on it, but how do you intend to compensate for engine movement? Even with solid motor mounts there is a little bit of movement.

[fc7even]

Well once it bolts up to the throttle body itll sit there like the stock intake and i have a spring mount that will support it close to the maf. So should be no problem

[RETed]

Originally Posted by GySgtFrank

I hate to point this out, as you've done so much nice work on it, but how do you intend to compensate for engine movement? Even with solid motor mounts there is a little bit of movement.

+1

I'm sorry, but having that long, honkin' thing hanging off the TB is still mass dealing with vibration - i.e. physics.
Even if you "spring mount" the AFM, that's even more mass...

Also, stainless steel has this nasty habit of soaking heat.
That duct is hanging over the exhaust exit out of the engine.

There's a reason why Mazda designed it as a rubber flex unit.
If they didn't need have to worry about flex and vibration, a plastic unit would've been lighter and cheaper to install.

I agree that your welding skills are top-notch, but I question the practicality of this application?


-Ted

[fc7even]

If i was using the car more than just weekend cruising id be mor concerned about it. If it gets to hot ill ceramic coat it like i did all my intake manifolds

[Pete_89T2]

Originally Posted by RETed

+1

I'm sorry, but having that long, honkin' thing hanging off the TB is still mass dealing with vibration - i.e. physics.
Even if you "spring mount" the AFM, that's even more mass...

Also, stainless steel has this nasty habit of soaking heat.
That duct is hanging over the exhaust exit out of the engine.

There's a reason why Mazda designed it as a rubber flex unit.
If they didn't need have to worry about flex and vibration, a plastic unit would've been lighter and cheaper to install.

I agree that your welding skills are top-notch, but I question the practicality of this application?


-Ted

+2, agree with all that Ted & Gunny stated above. WRT the vibration issue, another thing to consider is that your design will effectively transfer engine vibes directly to the AFM, which most likely will cause your car to idle/run like crap. Reason being is the AFM uses a spring loaded opening (flapper door on S4, cone on S5) to measure airflow. Add vibes (or fail to effectively dampen vibes) to such a design and you can guess what happens to the accuracy of the airflow measurement - it will jitter. Since the AFM is the primary sensor used by the FC ECU to control fuel, measurement jitter is very likely to bugger up your idle/running performance.

[fc7even]

Meh we will see. Worth a try

[GySgtFrank]

Originally Posted by fc7even

Meh we will see. Worth a try

Give it a shot. It seems I've spent at least half my time redoing stuff that didn't quite work out the way I had envisioned on my own project. It didn't work, but it was always instructive.

[fc7even]

Heres a picture of it sittin by itself. Tacked the flange on today

[sen2two]

Seriously. Worrying about intake vibration? It's just an intake tube... I seen many FC's with zip tied flow meters and cobbled together eBay piping intakes.

Nice work man. I hate cutting stainless so i know some dedication went into this.

[fc7even]

^ haha thanks man. I completely agree. I know mazda took that into account when engineering the maf

[RETed]

Originally Posted by sen2two

Seriously. Worrying about intake vibration? It's just an intake tube...

You should go look up the term: "work hardening"
Vibration (to the AFM) is not what I would primarily worry about.
I would worry that it would crack...

Originally Posted by sen2two

I seen many FC's with zip tied flow meters and cobbled together eBay piping intakes.

Sure, FC owners are cheap and usually on the young (read: kids) side.
The car might run like shit, but most of these types of owners are just happy to drive down the road and back...
Sadly, having the car run at it's best is not something they can afford to do.
So, I don't see what your point is...?

Nice work man. I hate cutting stainless so i know some dedication went into this.

I even went to compliment his work too...
With this kinda skills, I would suggest looking at other, more better applications of such skills.
Exhaust headers would be an easy example.

As you have already pointed out, FC owners are cheap asses.
The OP mentioned possibly offering this type of product for sale?
Unless priced ridiculously low (like under $20), I doubt it would sell to maybe a select few who wants to own something different without flinching at the price tag.
We're just offering constructive criticism...


-Ted