Wind tunnel. Smoke streams. Instrumentation. Lab coats. We need empirical data!  

Stephen

Mobile

> On Nov 3, 2018, at 11:21 AM, Don Hanson <dhanson928@GMAIL.COM> wrote:
> 
> In my ongoing Aero-sonic experiment, I refined the fairing strips at those
> rain gutters between the doors and the windshield... Replaced the
> preliminary trial with a smoother job and racers tape.  I've yet to
> encounter a downpour to see if the modification causes water leaks, but I
> did try it for about 60 miles in apparent wind of 120mph (50 mph Gorge
> wind-70mph speed into it).
>   It's a go!  It works.
>    BTW, as I turned west on to Hwy 14 in Wa. into the headwind, a blue
> Westie rolled past.  I followed him at a distance for about 15 miles at my
> preferred cruising speed of ~60-65 mph.. Close to full gas with that kinda
> headwind.  (I-4 ABA motor). When we came to the John Day grade, his speed
> dropped and I went around,, still in 5th gear, though I did use 4th near
> the summit to hold 60 mph...
>   I bet my aero-mods helped with a couple mph better speed
> .grin smiley face..
> 
>> On Sat, Nov 3, 2018, 7:40 AM Jim. Felder <jim.felder@gmail.com> wrote:
>> 
>> What some people have tried--though I as yet am not one of them--is to tape
>> up all the seams, window glass, etc around a door and drive the carat
>> highway speeds. Remove and replace each strip of tape to discover the
>> offending area.
>> 
>> Jim
>> 
>> On Sat, Nov 3, 2018 at 9:27 AM Mark McCulley <markmcculley@gmail.com>
>> wrote:
>> 
>>> I could not discern a lessening of wind noise with the bubble wrap in
>> the A
>>> pillar openings and the fresh air vents.
>>> 
>>> -Mark
>>> 
>>> On Fri, Nov 2, 2018 at 11:46 AM Mark McCulley <markmcculley@gmail.com>
>>> wrote:
>>> 
>>>> Sure enough, if you grab the edge of the body just in front of the door
>>>> opening you fingers will be in that opening. I just stuffed some bubble
>>>> wrap in there as well as in the openings in the door and body for the
>>> fresh
>>>> air vents. I will test drive this afternoon and report back whether it
>>> made
>>>> a difference or not.
>>>> 
>>>> -Mark
>>>> 
>>>> On Fri, Nov 2, 2018 at 8:06 AM steve meassick <stevem@tdhvac.com>
>> wrote:
>>>> 
>>>>> It is in front of the front wheels.  You can see the opening if you
>> lay
>>>>> under the van.  In the photos of the link, it is the rectangular space
>>> to
>>>>> the right of the oval cutout with the yellow foam.
>>>>> 
>>>>> Steve
>>>>> 
>>>>> -----Original Message-----
>>>>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of
>>> Eric
>>>>> Caron
>>>>> Sent: Thursday, November 1, 2018 8:16 PM
>>>>> To: vanagon@GERRY.VANAGON.COM
>>>>> Subject: Re: Aerodynamics?
>>>>> 
>>>>> I’ve read a lot of threads but not this idea of filling in this A
>> Piller
>>>>> spot.
>>>>> 
>>>>> Can someone tell me where exactly tha opening is on onside of the van.
>>>>> 
>>>>> I may be confused as to the A Piller.  I’ve not found a open spot
>>> leading
>>>>> up into the van.
>>>>> 
>>>>> Thanks for tips, note to any new members I’m blind so need a verbal
>>>>> description not a picture or link to a picture.
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Eric Caron
>>>>> 85 GL Auto
>>>>> 
>>>>> 
>>>>>> On Nov 1, 2018, at 4:04 PM, steve meassick <stevem@TDHVAC.COM>
>> wrote:
>>>>>> 
>>>>>> Noise is also generated at the bottom of the A pillar on both sides.
>>>>> It is open on the bottom and funnels noise up.  Foam can be put in the
>>>>> bottom to reduce this noise, see this link:
>>>>> http://www.t3-infos.de/t3-infos_d.html#wgummis  It is in German, but
>>> you
>>>>> can use google translate if you don't understand it.
>>>>>> 
>>>>>> 
>>>>>> Steve
>>>>>> 
>>>>>> -----Original Message-----
>>>>>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of
>>>>> Dan N
>>>>>> Sent: Thursday, November 1, 2018 12:46 PM
>>>>>> To: vanagon@GERRY.VANAGON.COM
>>>>>> Subject: Re: Aerodynamics?
>>>>>> 
>>>>>> I don't think there's an easy way the reduce wind noise in general,
>>>>> unless you're talking about whistling noises due window seals or from
>>> fresh
>>>>> air intakes. When I remove the dash to replace the heater blower I put
>>>>> FatMat sound deadener on the nose panel, I reseal all the fresh air
>>> hoses.
>>>>> I also put FatMat on the door panels and all other side panels too. It
>>>>> quiet down quite a lot, say about 50% but wind noise is still there.
>>> Keep
>>>>> in mind that a vanagon is not a luxury sedan/SUV or modern van. I am a
>>>>> classical guitarist and I am very sensitive to noises/sounds and the
>>> such.
>>>>> 
>>>> 
>>> 
>>