[DeTomaso] Engine Bay Air Flow

[Göran Malmberg]

Will, do you maybe have this statement of Wilkinson handy?
It suprises me that he should claim a thing that he could hardly
have observed.
Last summer I did show a number of pictures using a number of tuft 
in the rear deck lid opening showing the direction of airflow. 
At 80 dgr ambient temperature the air in my scoop feed airbox is
110dgr F at 60 mph. But it depend on throttle position, if 
the engine consumes more air it drops some.
Goran


 
In the past, people have said that the flow though the AC reverses at
some high speed, I don't recall comments about the rear deck opening.
 
Ken


Yesterday, I taped some light string to my rear deck lid and went for a
ride. I was told by a few people (including Wilkinson) that the air
flow, at higher speeds, flows into the rear opening. This was not the
case. At least until 80 MPH. The air flows up from the engine, out the
decklid opening.
I kept track of air intake temperatures as I drove. At idle, the temp
was 184 degrees. At 60 mph, the air intake temp was 174 deg. The outdoor
temp was roughly 80 deg.
I need to get the cooler air into  the motor. There is roughly, a 1% hp
gain for every 10 deg cooler air. That's free hp.
Will