[Diy_efi] sequential injection timing

[Bruce]

Ever look at the injector pattern, at short pulse widths in slow motion?.
An intake valve is closed 3/4 of the time.   So like I said earlier, the
trick is getting the backflow of exhaust to atomize the fuel.
I have yet to hear of an oem firing the injector in what we'd call a
conventional engine at any time other then valve closed.  If you read thr=
u
the GNTtype archives you can read up what happens when you try to fire th=
e
injector at an open intake valve.
Bruce


----- Original Message -----
From: <Djfreggens at aol.com>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, July 30, 2002 10:29 AM
Subject: Re: [Diy_efi] sequential injection timing


im not a EFI guru but the obeject is the same as in a carberator. sheerin=
g
the fuel into vapor. most likely the best way to do this is to create a 9=
0=B0
angle to airflow. keeping the injector close to the vavle is crucial for
good
dry flow chareteristics but its not nearly as importnat as sheering the f=
uel
into vapor. the optimum placemnt for the injector would be right before t=
he
short side radious in the intake port. and the timing would have it squir=
t
right as the valve began to open. thats my 2cents.

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