Streamliner nose air inlet

[Superfast Matt McCoy]

quick question...  can someone explain this:



I understand this is the air inlet on the E-Z-Hook streamline motorcycle, but what is the round steel tube in the middle?  Is that for a tow hook or is that the inlet?  and why the large open area behind?

Thanks

[Sumner]

quick question...  can someone explain this:



I understand this is the air inlet on the E-Z-Hook streamline motorcycle, but what is the round steel tube in the middle?  Is that for a tow hook or is that the inlet?  and why the large open area behind?

Thanks

If I remember right the large hole goes to two ducts that go along side the rider/driver back to the engine.  The small one I'm not sure about unless it is a speed sensor.

c ya,

Sum

[manta22]

A pitot- static airspeed indicator?

Regards, Neil   Tucson, AZ

[Roadsters.com]

http://en.wikipedia.org/wiki/Pitot_tube

[Kansas Bad Man]

quick question...  can someone explain this:



I understand this is the air inlet on the E-Z-Hook streamline motorcycle, but what is the round steel tube in the middle?  Is that for a tow hook or is that the inlet?  and why the large open area behind?

Thanks

Superfast,

The small tube is the air intake for the cockpit.  A must have for streamliners, it's a rule. 

The large hole was originally designed into the motorcycle for a forced fed intake system.  Sam said it did increase the horsepower.  He got 1 psi boost.  I don't know exactly if he still utilizes that for anything now, as he is turbo charged at the moment.  He probably has it ducted to the turbo intake. 

                                        Max

[wolbrink471]

Superfast,

The small tube is the air intake for the cockpit.  A must have for streamliners, it's a rule. 

                                        Max
[/quote]

Just curious, is special attention also given to exhaust air from the cockpit?

Mark

[Kansas Bad Man]

Superfast,

The small tube is the air intake for the cockpit.  A must have for streamliners, it's a rule. 

                                        Max

Just curious, is special attention also given to exhaust air from the cockpit?

Mark
[/quote]

Mark,

No rule for the exhaust.  I suppose they figure that you can't seal one up enough to cause pressure, which could possible blow the canopy off.  Most canopies have an access hole for the canopy latch, as it must be made to open from the inside and the outside.  Also it must be marked on the outside as to the opening procedure, i.e. "pull lever up, push button down" etc.

                                        Max

[Dean Los Angeles]

Just curious, is special attention also given to exhaust air from the cockpit?

The ONLY one it matters to is the guy that is inside. I would hope that you would do your homework and provide an adequate outside air vent with an exhaust to match.

I know we answered about the small tube, but pitot tubes are pretty small and would have to be well out of the compressed air at that location to function correctly.

He got 1 psi boost

At 350 mph the maximum would be 2.15 psi. 1 psi isn't too bad. He would need that 1 psi for the turbo too. I'm going to guess that some of the blown vehicles out there are starving the turbo/blower by not supplying positive pressure to the inlet through the entire rpm range. If you don't have a sensor at the inlet how would you know?

[hotrod]

If you look closely at many of the streamliners they have "extraction ducts" in or near the canopy to provide some flow through air and pull any smoke or fumes out of the enclosed space. Small aircraft use similar devices to promote exhaust flow into the air stream.

They can be as simple as a so called "sucka duct" which is a NACA duct installed 180 degrees out of its normal location. A small hole with a small wickerbill infront of it to induce a local low pressure area, or a small plastic bubble with an opening in the rear facing surface.

Larry

[Sumner]

..........

He got 1 psi boost

At 350 mph the maximum would be 2.15 psi. 1 psi isn't too bad. He would need that 1 psi for the turbo too. I'm going to guess that some of the blown vehicles out there are starving the turbo/blower by not supplying positive pressure to the inlet through the entire rpm range. If you don't have a sensor at the inlet how would you know?

Glad you brought this up.  When the compressor side of the turbo creates pressure as we all know compressing that air creates heat.  Now let's say Sam would get 2 psi at 350.  Is that compressed air heated or just the ambient air temp.

If it is ambient temp and we wanted say 15 lbs. of final boost then it would seem to me that the turbo only has to compress the air to 13 lbs. and the other 2 would come from the boost from the speed.  Is that right?

And if that is right is the 15 lbs. of boosted air the same temp as the temp rise for 13 lbs. of boost  or 15??

I guess you can tell I didn't do well in thermodynamics,

Sum

[Jonny Hotnuts]

3.E
"and have adequate venting to carry away fumes"

Doesnt say what adequate is....but it does say you should have something

[hotrod]

Here are some examples:

Larry

[hotrod]

Here are more:

Larry

[hotrod]

part #3

[hotrod]

#4