[DeTomaso] Rear Window

[jgkrenton at comcast.net]

You could always move the condenser to the front of the car like many have done. I believe this modification is reported to be quite effective. 

Jeff Kimball/2467 



----- Original Message -----

From: "Stephen" <steve at snclocks.com> 
To: "Jeff Detrich" <jjdetrich at gmail.com> 
Cc: detomaso at poca.com 
Sent: Tuesday, March 22, 2016 12:54:02 PM 
Subject: Re: [DeTomaso] Rear Window 

You are right Jeff – especially because the fan powers from a wire on the dash-mounted temperature control that is separate from the wire that powers the a/c compressor clutch. 



Stephen Nelson 



SNClocks.com <http://www.snclocks.com/> 

Click here to join one of our mailing lists Contact Lists <http://fs19.formsite.com/kagforms/form675003155/index.html> 

Click here for our new <http://www.snclocks.com/TheRestofourWorld/Hammered-Dulcimers/About-Steves-Dulcimers/19824807_4sHGgj#1558377542_LKmkrT7> Hammered Dulcimers galleries 

Click here for my new blog <http://www.perfectoldman.com/> on finding happiness in retirement 



From: Jeff Detrich [mailto:jjdetrich at gmail.com] 
Sent: Tuesday, March 22, 2016 12:10 PM 
To: Stephen <steve at snclocks.com> 
Cc: detomaso at poca.com; tjaarda at astranet.it 
Subject: Re: [DeTomaso] Rear Window 





On Tue, Mar 22, 2016 at 1:25 PM, Stephen <steve at snclocks.com <mailto:steve at snclocks.com> > wrote: 

The positive pressure under the rear of the car when it is moving at 
speed, coupled with the likely vacuum behind the car reduces the 
efficiency of the a/c condenser fan. My tests suggest that around 60 
mph the air-flow through the condenser is reduced by about 40%. At 
around 80 mph it is reduced by over 50%. While I don't have a massive 
amount of data, what I have suggests that the decrease in flow through 
the condenser is not directly proportional to car speed, and that, in 
the 90 to 100 mph range the flow through the a/c condenser drops to 
around nothing. 


Sounds like if you are going to be cruising at very high speeds, just having a kill switch on the condenser fans would be helpful. That would be easy to wire I would think. 



Jeff 


_______________________________________________ 

Detomaso Forum Managed by POCA 
Posted emails must not exceed 1.5 Megabytes 
DeTomaso mailing list 
DeTomaso at poca.com 
http://poca.com/mailman/listinfo/detomaso_poca.com 

To manage your subscription (change email address, unsubscribe, etc.) use the links above. 

-------------- next part --------------
   You could always move the condenser to the front of the car like many
   have done.  I believe this modification is reported to be quite
   effective.
   Jeff Kimball/2467
     __________________________________________________________________

   From: "Stephen" <steve at snclocks.com>
   To: "Jeff Detrich" <jjdetrich at gmail.com>
   Cc: detomaso at poca.com
   Sent: Tuesday, March 22, 2016 12:54:02 PM
   Subject: Re: [DeTomaso] Rear Window
   You are right Jeff a especially because the fan powers from a wire on
   the dash-mounted temperature control that is separate from the wire
   that powers the a/c compressor clutch.

   Stephen Nelson

   SNClocks.com <http://www.snclocks.com/>
   Click here to join one of our mailing lists Contact Lists
   <http://fs19.formsite.com/kagforms/form675003155/index.html>
   Click here for our new
   <http://www.snclocks.com/TheRestofourWorld/Hammered-Dulcimers/About-Ste
   ves-Dulcimers/19824807_4sHGgj#1558377542_LKmkrT7> Hammered Dulcimers
   galleries
   Click here for my new blog <http://www.perfectoldman.com/>  on finding
   happiness in retirement

   From: Jeff Detrich [mailto:jjdetrich at gmail.com]
   Sent: Tuesday, March 22, 2016 12:10 PM
   To: Stephen <steve at snclocks.com>
   Cc: detomaso at poca.com; tjaarda at astranet.it
   Subject: Re: [DeTomaso] Rear Window


   On Tue, Mar 22, 2016 at 1:25 PM, Stephen <steve at snclocks.com
   <mailto:steve at snclocks.com> > wrote:
    The positive pressure under the rear of the car when it is moving at
      speed, coupled with the likely vacuum behind the car reduces the
      efficiency of the a/c condenser fan.  My tests suggest that around
   60
      mph the air-flow through the condenser is reduced by about 40%.  At
      around 80 mph it is reduced by over 50%.  While I don't have a
   massive
      amount of data, what I have suggests that the decrease in flow
   through
      the condenser is not directly proportional to car speed, and that,
   in
      the 90 to 100 mph range the flow through the a/c condenser drops to
      around nothing.
   Sounds like if you are going to be cruising at very high speeds, just
   having a kill switch on the condenser fans would be helpful. That would
   be easy to wire I would think.

   Jeff
   _______________________________________________
   Detomaso Forum Managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
   DeTomaso at poca.com
   http://poca.com/mailman/listinfo/detomaso_poca.com
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.