home made spiral air intake - Page 3 - PeachParts Mercedes-Benz Forum

oldsinner111 · #31 10-20-2011, 08:23 AM

German Gods.It just some people on the forum believe that because its German its great.Look at failures with the 3.5 diesel,or the v8 with single row chain.Germans do make mistakes,I do all the time.

Mike D · #32 10-20-2011, 09:07 AM

Man oh man. THIS is much better than our usual, antifreeze, spark plugs, oil, R12-R134 kind of discussions!

MAG58 · #33 10-20-2011, 09:20 AM

Quote:

Originally Posted by oldsinner111

Its the wind off the pistons

oldsinner111 · #34 10-20-2011, 09:23 AM

They have 3 breathers on my engine two to draw air and one to exhaust.Engines are compressors.

JayRash · #35 10-20-2011, 12:36 PM

if the turbine thing is fitted flush with the main duct and the turbine doesnt turn as in it be fixed i suspect it will improve throttle response at low air speed ie when the throttle is first opened at low revs. since it will spin the air.
but as MAG noted swirling air means it requires energy and thus at high air flow speeds the energy lost in spinning the air over comes the actual gain in air speed and hence it will inevitably hurt flow rates. otherwise every car maker will use this device to better feed the engine.

i still say a fixed turbine will help flow at very low intake air speed since my w124 came fitted with one from factory.

RBYCC · #36 10-20-2011, 02:09 PM

Quote:

Originally Posted by oldsinner111

They have 3 breathers on my engine two to draw air and one to exhaust.Engines are compressors.

An engine is not as much a compressor, as it is a vacuum pump....
It cannot "compress" air beyond atmosphere...and only draws in as much air as it's volume allows.
Don't get confused with the compression stroke in the cycle...

That is why superchargers and turbochargers, which are compressors, are able to overcome atmosphere and push in more air then the volume of the normally aspirated engine can accept.
Simplistically the additional volume of air from boost is akin to increasing the displacement of a NA motor....

As far as your "breathers", if they do not have any internal valving, they will all act the same depending on the vacuum of the engine...

Once again being simplistic, the vacuum effect of a NA engine can be noticed at times when trying to remove your oil filler cap with the engine running....

oldsinner111 · #37 10-20-2011, 02:23 PM

sounds right.I have not messed with oil breathers yet on the S because of location.But I did change it on my SD and Toyota,to a ground vent tube.
Of course the SD has a little blow by at high RPMs.

whunter · #38 10-20-2011, 04:57 PM

Quote:

Originally Posted by MAG58

The fact that you guys are actually taking this whole thing seriously is disturbing. The thing is a block to the intake, and even putting the thing on the side doesn't actually do anything, you're still blocked by the fact the 100mm tube is the most the air will flow regardless of how many little turbine outcroppings you've got. With as many turns as the air flow still has to course through to get to the intake valve, I'd be really surprised if any of the tumble induced, or remaining in the air intake charge came from the little spinner-do-dad. Let's think about this for a quick second, the air sucked into the intake tract would not normally be swirling, lest you're in the wizard of oz or some other extenuating circumstance. Thus, physics says that air that isn't spinning wont want to spin, unless energy is put into the equation. You're adding no energy. This means that energy has to come from somewhere. Since I'm assuming you drive around with the hood closed, that rules out solar energy, and since you don't mention anything of a giant fireball in the intake tract, I'll rule out chemical/thermal energy. What's that leave us? The only energy drawing air in is the vacuum created by the piston going down in the cylinder, creating a vacuum. Aside from Helmholtz resonance and pressure fronts created in a vary narrow rpm range by the sudden closing of the valves, that's all you've got to deal with. Now to spend some of the energy you're now using to draw in the air to instead spin the air way up the intake tract where the vortex air probably wont even be spinning by the time it makes it to the intake valve, how can you plan to improve power with less available force to move the air into the cylinder?

Since we've already put electric superchargers to rest, and now vortex devices, here's a good popular mechanics link so we can put all the hair brained schemes out of the way:
Looking For A Miracle: We Test Automotive 'Fuel Savers' - Popular Mechanics

Quote:

Originally Posted by JUNAID786

you don't make sense, can you explain that a bit better?

Your lack of comprehension of basic laws of physics and science while sad, is readily curable.

In this case, you must acquire the education and knowledge to understand a clear simple answer.

We have tried valiantly to explain.
Fuel saving device - Wikipedia, the free encyclopedia

JUNAID786 · #39 10-21-2011, 03:45 AM

thank you oh valiant internet warrior for saving me from myself.

oldsinner111 · #40 10-21-2011, 08:14 AM

We know that ram Air,Cowl Induction,and now throttle body spacers work to make power.Has anyone tried a spacer?You know I will.

oldsinner111 · #41 10-21-2011, 09:11 AM

A throttle body spacer would do the same thing Junaid is trying to do.Or maybe I should rifle my cold air intake.

MAG58 · #42 10-21-2011, 09:18 AM

Quote:

Originally Posted by oldsinner111

A throttle body spacer would do the same thing Junaid is trying to do.Or maybe I should rifle my cold air intake.

In what fashion? Power wise or in theory?

I can see how throttle body spacers work on wet manifolds, but it's less useful on a dry manifolds.
Ram air works, but even then, the sportbikes today that are the mainstay of ram air have to get up to speeds far above highway speeds to see noticeable gains (the ram air horsepower is usually quoted at 120mph). Though I want to see someone just cut a big ol' hole in their hood and put a scoop up there. Please do it.

Cowl induction also works, but at the same time, I have no idea what kinds of gains you'd see or how fast you'd have to go to get a high pressure area at the base of the windshield that would be required for a power gain.

oldsinner111 · #43 10-21-2011, 09:46 AM

Hum scoop.Naw it would hurt areodynamics,unless a cowl?

jadewombat · #44 10-21-2011, 10:45 AM

Although this discussion could go on for several more pages and days, if this is so scientific why not get so acceleration tests here to see if it actually does anything? You got smartphones and dyno apps. down there in South Africa I assume?? If not, just get some 0-100km tests and weigh the car. Test it with the stock airbox, then this other contraption--heck, just try and wrap an oily rag over the AFM to see what happens.

oldsinner111 · #45 10-21-2011, 11:28 AM

I did that already,with stock airbox.However never occured to me that rifling the intake would speed the air thru it.
My cold air intake is less restrictive.Also my grille I removed triangle parts inside grille to get full airflow.
As always these cars need a lathe to make a TBS.
Oh stock aIR box was17.5 IN THE 1/4 MILE WITH COLD AIR 17.04 with added resistor 16.8