[DeTomaso] Engine Inlet Temperature Test Results

[michael at michaelshortt.com]

My 944 had a cold air scoop in front of the left front tire down low,
worked great until it sucked up water and hydraulic 'ed the block and threw
a rod.

No thanks,

Michael Shortt
On Dec 9, 2014 5:06 PM, "Tomas Gunnarsson" <guson at home.se> wrote:

> I pick up all the air through ducts from chassis bottom level. Air box
> temp is like you describe, around 5C above ambient when the car is moving.
> My car has no front hood vents.
>
> Tomas
>
> ----- Original Message -----
> From: "JF" <pantera at vtc.net>
> To: <detomaso at poca.com>
> Sent: Tuesday, December 09, 2014 4:59 PM
> Subject: [DeTomaso] Engine Inlet Temperature Test Results
>
>
> >I have followed some of the threads about engine inlet air temperature
> > and how to get fresh air into the Pantera's engine. My tests showed that
> > I had about 40 degrees warmer temperature with my sealed air box hoses
> > disconnected and the air coming into the engine from the bottom of the
> > car. The inlet engine temperature is normally about ten degrees warmer
> > than ambient air temperature with the hoses connected to the small inlet
> > air scoops that replaced the side windows. The warmer inlet air
> > temperature tells me that there is warmer air from the radiator that is
> > following the boundary layer along side of the car. The car also has a
> > vented front hood and this may be adding to the increased inlet air
> > temperature.
> >
> > My data was easy to attain because the car is fuel injected and I also
> > have a stand alone outside air temperature gauge in the dash. There is a
> > system monitor on the dash that shows engine inlet air temperature along
> > with many other things. I have done a yarn test with the air scoops and
> > with the engine off at a 25 mph coasting speed, the yarn is being forced
> > into the scoops. The air box is made by Spectre and the inlet nozzles
> > have been reversed to allow for more clearance when I cut and install
> > the engine screen.
> >
> > In my opinion, pulling air in from the bottom of the car as the factory
> > did is not going to give much of a temperature reduction. There is a lot
> > of air under the car that has already gone through the radiator and with
> > as low as a Pantera is, I believe you will be picking up heat from the
> > pavement as well.
> >
> > I have had no problems with the engine starving for air with this set up
> > at full throttle or any rpm. For what it is worth, the engine is a 388
> > cubic inch Fontana with CHI 3V heads and matching CHI air gap intake
> > manifold. The fuel injection system is a F.A.S.T XFI 2.0 speed density
> > bank fired.
> >
>
>
>
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>
>
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-------------- next part --------------
   My 944 had a cold air scoop in front of the left front tire down low,
   worked great until it sucked up water and hydraulic 'ed the block and
   threw a rod.

   No thanks,

   Michael Shortt

   On Dec 9, 2014 5:06 PM, "Tomas Gunnarsson" <[1]guson at home.se> wrote:

     I pick up all the air through ducts from chassis bottom level. Air
     box temp is like you describe, around 5C above ambient when the car
     is moving. My car has no front hood vents.
     Tomas
     ----- Original Message -----
     From: "JF" <[2]pantera at vtc.net>
     To: <[3]detomaso at poca.com>
     Sent: Tuesday, December 09, 2014 4:59 PM
     Subject: [DeTomaso] Engine Inlet Temperature Test Results
     >I have followed some of the threads about engine inlet air
     temperature
     > and how to get fresh air into the Pantera's engine. My tests
     showed that
     > I had about 40 degrees warmer temperature with my sealed air box
     hoses
     > disconnected and the air coming into the engine from the bottom of
     the
     > car. The inlet engine temperature is normally about ten degrees
     warmer
     > than ambient air temperature with the hoses connected to the small
     inlet
     > air scoops that replaced the side windows. The warmer inlet air
     > temperature tells me that there is warmer air from the radiator
     that is
     > following the boundary layer along side of the car. The car also
     has a
     > vented front hood and this may be adding to the increased inlet
     air
     > temperature.
     >
     > My data was easy to attain because the car is fuel injected and I
     also
     > have a stand alone outside air temperature gauge in the dash.
     There is a
     > system monitor on the dash that shows engine inlet air temperature
     along
     > with many other things. I have done a yarn test with the air
     scoops and
     > with the engine off at a 25 mph coasting speed, the yarn is being
     forced
     > into the scoops. The air box is made by Spectre and the inlet
     nozzles
     > have been reversed to allow for more clearance when I cut and
     install
     > the engine screen.
     >
     > In my opinion, pulling air in from the bottom of the car as the
     factory
     > did is not going to give much of a temperature reduction. There is
     a lot
     > of air under the car that has already gone through the radiator
     and with
     > as low as a Pantera is, I believe you will be picking up heat from
     the
     > pavement as well.
     >
     > I have had no problems with the engine starving for air with this
     set up
     > at full throttle or any rpm. For what it is worth, the engine is a
     388
     > cubic inch Fontana with CHI 3V heads and matching CHI air gap
     intake
     > manifold. The fuel injection system is a F.A.S.T XFI 2.0 speed
     density
     > bank fired.
     >
     --------------------------------------------------------------------
     ------------
     > _______________________________________________
     >
     > Detomaso Forum Managed by POCA
     >
     > DeTomaso mailing list
     > [4]DeTomaso at poca.com
     > [5]http://poca.com/mailman/listinfo/detomaso_poca.com
     >
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References

   1. mailto:guson at home.se
   2. mailto:pantera at vtc.net
   3. mailto:detomaso at poca.com
   4. mailto:DeTomaso at poca.com
   5. http://poca.com/mailman/listinfo/detomaso_poca.com
   6. mailto:DeTomaso at poca.com
   7. http://poca.com/mailman/listinfo/detomaso_poca.com