[Healeys] 100 Draft tube

Michael Salter michaelsalter at gmail.com
Thu Apr 29 09:08:23 MDT 2021


The problem with such "Road tubes" as they were called in my day is the
smell. I'm old enough to remember what it was like to follow cars with them
.... they stink!!

M

On Thu., Apr. 29, 2021, 10:56 a.m. Roger Grace, <roggrace at telus.net> wrote:

> Yes, this is how I vent my BJ8.
> Never thought of using a fan to test it ... good idea MS !
> rg
>
>
> On Thu, Apr 29, 2021 at 7:09 AM Michael Salter via Healeys <
> healeys at autox.team.net> wrote:
>
>> Bernoulli would have been proud of you. 👍👍
>>
>> M
>>
>> On Thu., Apr. 29, 2021, 9:05 a.m. healeyguy--- via Healeys, <
>> healeys at autox.team.net> wrote:
>>
>>> Listers
>>> I attempted to add a 7 second video of a demonstration of how a draft
>>> tube works but it was rejected on the list.  Probably file size.  Anyway
>>> wanted to show the effectiveness of a draft tube in operation.
>>> Had my shop fan blowing parallel with the floor (car in motion), a empty
>>> paper towel tube and a strip of Kleenex tissue.  Cut one end of the tube at
>>> an angle, about 30 degrees. Held the tissue paper over the upper square end
>>> of the tube and slowly lowered the angle cut end vertically  into the fan
>>> wash, Only had to lower the tube less that 2 inches  and the tissue was
>>> sucked down the tube.  The engineers way back when knew what they were
>>> doing with regard to ventilating the engine in a very simple but not very
>>> environmental way.
>>> As Mr Dylan once said. "Ah, but I was so much older then, I'm younger
>>> than that now..."  :)
>>> P
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