[Healeys] AH BN1/2 Float Bowl Cooling Fan

Sat Jul 5 17:14:22 MDT 2025

Here's another spitter from Amazon...

Amazon.com: POWERTEC 4 Inch Y Fitting for 4" Dust Collection Hose, 4 Inch
Dust Collection Hose Connector Fittings for Dust Collection System, 1 pack
(70106) : Tools & Home Improvement
<https://www.amazon.com/POWERTEC-70106-4-Inch-Y-Fitting-Connector/dp/B005VRJIW8/ref=sr_1_30?crid=2G6Q9P8E9923V&dib=eyJ2IjoiMSJ9.qOBKBHuH3HeOjLhAiqyAl0slJSMPorF2xkrWbe94H7YIuFpTbwI40YZW3hHsirpxeDB1Fsg8rOxpJVn4GnhP2oXrZT46rDy8HCZ-Dn5KH41QFZLUj6RNOORaw_FY4KJ9BGP2NgRZJ-KGVFmVtezURmxTAENV44QGXM6QNazHb5Sk2pO2aIATHcACXaz1BXyVujuiufAI4ssQ5zmvHj6057pRLjrIvvG6laIICqzFTz_QZsUfo8tA3ZiTKDq39YIvwC87VbYBSz7oZ9AoWWKhErTRTTUCFn_F_SftSMU0FuE.u2Rz2BCwQ1Svyy0pWzUUOO9_nu_qAjI4NqYMQummq94&dib_tag=se&keywords=hose%2Badapter%2B4%22&qid=1751756853&sprefix=hose%2Badapter%2B4%2B%2Caps%2C184&sr=8-30&th=1>
[image: image.png]

On Sat, Jul 5, 2025 at 3:57 PM Curtis Arndt <cnaarndt at gmail.com> wrote:

> Ken
>
> Revotec makes a "Y" splitter..
>
> [image: image.png]
> In-line Blower Fans – www.revotec.com | Automotive Cooling Specialist
> <https://revotec.com/product/in-line-blower-fans/>
>
> <https://revotec.com/product/in-line-blower-fans/>I don't know if there
> is enough room, but you may be able to run one hose to the cold air box and
> the other hose underneath to the float bowls. You'll have to mock this up
> to see if it could work. I'm thinking that the steering shaft may be in the
> way.
>
> Alternatively mount the blower motor lower and bring a second hose up from
> below. I can't access my car right now so I don't even know if there is
> room.
>
> Curt
>
> On Sat, Jul 5, 2025 at 10:25 AM KENNETH FLEMNG <ahmg at aol.com> wrote:
>
>> This solution was definitely going to be the one that I was looking for .
>> I really got to excited to early , as I have a 100 Lemans car and cold air
>> box prevents usage of this method .
>> Any suggestions, without the option of buying a stock 100? Though that
>> may be a good excuse for another 100 in the stable. Atleast what I could
>> tell my wife , but she really would not buy that much to smart I have to
>> say and heard all tricks before.
>> Thanks in advance guys!
>>
>> Ken Fleming
>>
>> On Jul 4, 2025, at 3:51 PM, Curtis Arndt <cnaarndt at gmail.com> wrote:
>>
>> 
>> Ken,ac
>>
>> Here's the design and setup that I did for the BN1/2 float bowl cooling
>> fan. It's been installed by both Geoff Chrysler and BN1 owner, British
>> expat Simon Griffin of Illinois. Simon told me that the results have been
>> absolutely fantastic, no more vapor lock, or fuel boiling in the float
>> bowls.
>>
>> Here the blog article from Geoff Chrysler [Rightway Heritage Trimming] on
>> his installation, #10 Install a Carburetor Cooling Fan...
>> BN1: Winter Maintenance & Improvements, - A DETAIL ENTHUSIAST
>> <http://www.detailenthusiast.ca/blog/bn1-winter-maintenance-improvements>
>>
>> Here's the video Geoff did on his installation, *"Install a Cooling Fan"*
>> at minute 38:47 to 45:22...
>> BN1 Winter maintenance <https://www.youtube.com/watch?v=qotWXYorlfM>
>>
>> There are three photos of my original setup without the inline cooling
>> fan on my Instagram site - 1955healey100...
>> (4) Instagram <https://www.instagram.com/p/Ch60RWrODCt/>
>> (4) Instagram <https://www.instagram.com/p/Ch60OjPO6H1/>
>> (4) Instagram <https://www.instagram.com/p/Ch6zNtEOEfD/>
>>
>> I ordered my *Revotec* 4" inline cooling fan from these folks in
>> England...
>> Buy Revotec Alloy In-Line Blower Fans | Demon Tweeks
>> <https://www.demon-tweeks.com/us/revotec-alloy-in-line-blower-fans-991144/>
>>
>> These fans are high quality, UK made and are specific for performance or
>> vintage automobiles. They are under $150 USD delivered to California.  I
>> was going to wire the fan to my light panel under my dash with a toggle
>> switch, however Geoff came up with a simple and elegant
>> alternative... power is easily supplied as Geoff describes from the
>> available side light connector just requiring a plug in to the side light
>> connector and a ground..
>>
>> The 4" to 2-1/2" plastic adapter was ordered from Amazon, *"Powertec" *for
>> $8.99...
>> POWERTEC 70136 4" to 2-1/2" Cone Reducer, Dust Collection Fittings for
>> Dust Collection Hose to Hose Connection - Amazon.com
>> <https://www.amazon.com/POWERTEC-70136-4-Inch-2-Inch-Reducer/dp/B002DSDSY2/ref=sr_1_4?crid=5M60LPPWEIHH&dib=eyJ2IjoiMSJ9.lBH972M851RE6txRsBmWCnYB3z3HAvMeWL79TWm_yDe2xr2c-0HWwcPSYzyz1MtcqWQNceW86pggeDOsPRPbeRiFjUB46-vIOlCiFtF2qoJ40Zs__To9UWaYdfUNLT0kicCfGt-ZASl28Etw7-cMLbLZ6q7Y9eITrBghxhH1jowvhyxA6T-g1ZbSMS5-wBnj4X0GJvAbJAmoDqgGCEznzApES3HVxX_AYDi-3VnzidBsvD_b-ipNlwKga2l9Oq3PaTgWKnEzHkB5OUPWHuyB15Em5iIKJMcxuuHpfIdhI9E.-qDlA33CQ5f3no8To7vW_irH4EmUu2dw4W_BagUBG-o&dib_tag=se&keywords=4%22%2Bto%2B2-1%2F2%22%2Bplastic%2Bhose%2Badapter&qid=1751656574&sprefix=4%2Bto%2B2-1%2F2%2Bplastic%2Bhose%2Badapter%2Caps%2C159&sr=8-4&th=1>
>>
>> Basic HS physics/Bernoulli, reducing the diameter from 4" to 2-1/2"
>> increases the speed of the air, plus the adapter makes mounting a lot
>> easier. It can all be removed in minutes.
>>
>> The hose was a quality OEM style, 100M cold air box, sturdy fabric type
>> from AH Spares...
>> Intake Hose - Cold Air Box
>> <https://www.ahspares.co.uk/austin-healey/performance-parts/fuel-engine-bay/intake-hose-cold-air-box.aspx?srsltid=afmboooedzgi4c2twlkfnjavdtvcki1r5zzgyxmlrofx1ugd92jxqims>
>>
>> Let me know what you think. I was going to supply, market and sell these
>> as a kit, but I'd most likely lose money on the project. They are easy
>> enough to build on your own.
>>
>> Cheers,
>>
>> Curt
>> AHCSD, AHCUSA, AHCA
>> AH Concours Registry
>>
>>
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