dual spray injectors

[Walter Sherwin]

Depending upon the manifold, it is sometimes difficult or even impossible to
"lay the injector over" to get a good shot along the axis of the head port.
As a consequence, much of the fuel winds up hitting the opposite port/runner
wall.  I've always thought that this is a less than optimal situation, even
though it does work!!

What sticks in my mind though, is if it truly is an inconsequential "thing"
then why have so many OEM's taken so much time and effort to align the spray
axis with the port axis, in most modern EFI engines?   A deflector would
help to replicate this feature, but as Gary pointed out it may also
globularize the fuel and cause other problems.  Oh well :(

Walt.


-----Original Message-----
From: Charles Brooks <cbrooks1 at mail.tqci.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Friday, January 22, 1999 5:07 PM
Subject: Re: dual spray injectors


>I was wondering why you wanted to re-direct the spray pattern. If your
going to
>convert a manifold, how about milling the proper angle into the manifold
the
>first time?  If it looks like there will not be enough material to hold the
>bosses you can add material (by welding) to the area where you need the
>injector bosses located.
>
>Charles Brooks
>
>
>
>Walter Sherwin wrote:
>
>> Gary, would it be possible to redirect the flow even slightly with a
>> deflector, without creating globs of fuel?  What about a deflector with
>> holes and patterns and such?  I am just wondering aloud because it would
be
>> nice to find a way to deflect fuel into a more favourable trajectory when
>> "EFI'ing" non EFI manifolds.  Anybody thoughts?
>