Muscle Car Fuel Injection

Kevin Crain kevin at warpten.com
Wed Sep 17 19:47:53 GMT 1997


Is there a relatively painless path from CFI to port injection, letting me
keep the factory wiring and sensors?  Seems like it's got a usable sensor
package with O2, temp, knock, MAP, etc.

-Kevin

On Mon, 15 Sep 1997, Gary Derian wrote:

>  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.
> >
> 




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