[Diy_efi] sequential injection timing

[Brian Michalk]

> -----Original Message-----
> From: diy_efi-admin at diy-efi.org [mailto:diy_efi-admin at diy-efi.org]On
> Behalf Of Mark Claywell
> Sent: Monday, July 29, 2002 10:27 PM
> To: diy_efi at diy-efi.org; diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] sequential injection timing
> > > It might be that injecting onto the back of the hot intake valve helps
> > > vaporization.
> > Yes, but the primary action to get the fuel *burnable* is the
> exhaust, at
> > overlap that atomizes the fuel.
> I would have to disagree with that, as would I think most fuel injector
> engineers. There has been a large push by Deplhi and Siemens among others
> to work on injectors with a bent spray (or gamma angle) to allow proper
> targeting of the injector spray. Proper targeting is a large portion of
> getting good mixture preparation.

So what is the optimum "targeting"?

1) Place the injector as close to the intake valve as possible and squirt on
it?
2) Place the injector a little upstream so that intake turbulence gives a
good mixture?


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