DeTomaso Mailing List: February 98, Message #92
     



From: 	"Doug Mann" <dmann@dconn.com>

Subject: Re: Manns car

Date: 	Mon, 2 Feb 1998 19:00:06 +0000



Dave,

A couple things help the front end.  One that late model bumper 

does more than some think.  I'm also getting more air over the front 

by directing more radiator air up and over the hood.  Raising the pressure 

over the top of the "wing" (the basic shape of the car!) and lowering it 

on the bottom.  By redirecting more air over the car and having a larger 

exit area in the back for air that goes under the car.  Maintaining a 

2:1 entry to exit ratio under the car.



That said, that is one of the reasons I stopped at 217, but I've got a couple 

of new bolt ons that'll help me when go for over 220.



I saw on your web page "Note that speedo goes to 200 MPH", did you 

notice my speedo MPH?



A turbos 14 psi can't compare to the 14 psi of a blower.  The turbo 

air is by flow or velocity, the blower is pumped pressure more like a 

compressor.  If you read the 14 psi off the manifold your reading the 

turbos static pressure which won't show you the dynamic pressure 

that's really there because of the velocity of the air.  They are just not 

an even comparison.   14 psi in a turbo would compare more to 18-19 

psi static pressure in a blower.



D-Mann



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

From: David Doddek <pantera@pobox.com>

To: Doug Mann <dmann@dconn.com>

Date: Sunday, February 01, 1998 9:47 PM

Subject: Re: Manns car





Doug,



Thanks for some explination.  I dont really understand what you are talking

about the two different types of boost, but I know with a gauge on the

manifold and 14 psi, I can easily get 700 HP.  I wonder how you keep the

car on the ground at 217.  The front gets light if you dont make some aero

mods.  



Dave D