Muscle Car Fuel Injection

[Gary Derian]

 The Corvettes ran poorly due to vacuum leaks and a very large wetted
manifold surface.  Large cool wetted surfaces accumulate fuel on their walls
at low vacuum (opening the throttle).  This fuel then vaporizes at high
vacuum (closing the throttle) and causes a large hydrocarbon spike in the
exhaust.  That is why the crossfire Corvette and Camaro was available only
with an automatic transmission.  Also, fuel mixture distribution tends to be
poor.  Use port injection and design your intake manifold to flow dry air.

-----Original Message-----
From: Paul Tholey <pft101 at psu.edu>
To: diy_efi at coulomb.eng.ohio-state.edu <diy_efi at coulomb.eng.ohio-state.edu>
Date: Monday, September 15, 1997 5:18 PM
Subject: Muscle Car Fuel Injection



>I have subscribed to the efi listserv and have found little mention of
>muscle car fuel injection.  I am trying to design fuel injection for a 1971
>Duster.  The engine is a 360.  I am working on designing a cross ram
>injection using a custom made sheet metal intake manifold.
>        I am in the beginning stages of this design.  The Corvette cross
>fire injection was my inspiration for this.  The small block chevy and
mopar
>both have the same firing order so I was contemplating using a cross fire
>computer.  I have found that most of these cross fire cars ran poorly.
Does
>anyone know why?  Should I gear my design away from a throttle body?  I
>would like to.
>        I am intimidated by most of the postings.  If anyone is
>compassionate enough to lend some guidance I would love to return the
favor.
>I am capable of creating any custom sheet metal style aluminum intake
manifolds.
>