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Home » Public Forums » GMCnet » [GMCnet] WE ALL NEED MORE AIR
Re: [GMCnet] WE ALL NEED MORE AIR [message #321607 is a reply to message #321604] Thu, 03 August 2017 20:29 Go to previous messageGo to previous message
johnd01 is currently offline  johnd01   United States
Messages: 354
Registered: July 2017
Location: Sacrameot
Karma:
Senior Member
We need someone to get some data on how well this works. Air flow and
temperature differential temperature. If the evaporator is not cold it does
not matter how much air you push if you are counting on cooling. If you are
counting and having fast moving 100-degree air, well that is a different
story.

On Thu, Aug 3, 2017 at 5:21 PM, Rob Mueller wrote:

> Ken,
>
> I may be confused but doesn't Tom's design connect ducts from the floor to
> the BACK of the HVAC box?
>
> My question meant to find out why not just bolt the blower directly to the
> back of the HVAC box?
>
> Regards,
> Rob M.
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken
> Henderson
> Sent: Friday, August 4, 2017 9:24 AM
> To: GMC Mail List
> Subject: Re: [GMCnet] WE ALL NEED MORE AIR
>
> I'll answer that, based on my complete redesign & construction: First off,
> in Tom's case, he didn't want to build a new HVAC box, which would be
> required to provide room in front of the existing box for the blower.
> He might, of course, have hung the blower below the box and only had one
> bend in the air flow, but that would have partially obstructed the
> radiator.
>
> Most importantly, for Tom's and My mods: The problem of providing supply
> air to the blower. With the blower out front, where we'd really like it to
> be for most-linear air flow, one would have to provide ducting from the
> cockpit out to and completely surrounding the blower. A BIG fabrication
> job.
>
> If you look at all of the dual blowers, you'll see that they all induct air
> to the wheels from both sides -- the outside and around the center-mounted
> motor. I seriously consider closing the motor side and using round ducts
> into each side, but finally figured out that the wheels would be seriously
> starved for supply air.
> Among other strikes against the idea.
>
> Tom, feel free to supply your own reasons if this doesn't cover it.
>
> Ken H.
>
>
> On Thu, Aug 3, 2017 at 6:35 PM, Rob Mueller
> wrote:
>
>> Tom,
>>
>> Your mod is quite clever, I was wondering why you didn't attach the
> blower
>> directly to the back of the A/C plenum?
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*John Phillips*
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Johnd01 John Phillips Avion A2600 TZE064V101164 Rancho Cordova, CA (Sacramento)
 
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