[Diy_efi] injector advance

[Gary]

No change in software/hardware per sa, but a 'blurring' 
effect, in regards to the precision opening/closing events 
of the injectors, in relation to valve events.  Hope this helps 
clarify my intent.

GAS


----- Original Message ----- 
From: "Gary" <gas- at charter.net>
To: "A list for Do-It-Yourself EFI" <diy_efi at diy-efi.org>
Sent: Thursday, August 05, 2004 1:04 PM
Subject: Re: [Diy_efi] injector advance


> My inference of sequential becoming batch, is with the 
> understanding, batch (or bank to bank) firing implies 
> injecting fuel at a closed valve.  With increasing rpm, 
> and the attending increase in fuel demand and decreasing 
> 'window' of time available to fire the injectors, the sequential 
> firing becomes a continued injector firing after valve is closed 
> (or prior to opening), to meet fuel demand. 
> 
> GAS
> 
> 
> ----- Original Message ----- 
> From: "Adam Wade" <espresso_doppio at yahoo.com>
> To: "A list for Do-It-Yourself EFI" <diy_efi at diy-efi.org>
> Sent: Thursday, August 05, 2004 12:38 PM
> Subject: Re: [Diy_efi] injector advance
> 
> 
> > --- Gary <gas- at charter.net> wrote:
> > 
> > > Yes!  When the firing becomes batch (no longer
> > > sequential), are all valves in the same relationship
> > > with the crank?  No!
> > 
> > Sequential never "becomes" batch, but at a certain
> > engine speed, the practical advantage of sequential
> > offers no improvement over batch.  I wrote a small
> > treatise about this in my book (And since it's
> > available now on Amazon.com and in most Borders and
> > Barnes and Noble stores, I'll include this shameless
> > plug, as well as not retyping the entire thing!).
> > 
> > It depends on the number of cylinders you have, as
> > fewer cylinders means a higher rev "limit" before
> > performance becomes the same in all circumstances.

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