730 Pump Shot

[Bruce Plecan]

Don't get too crazy tring to directly relate TBI to TPI, specially in AE
stuff.
One is a dry manifold the other wet, in the case of the dry, takes alot less
AE to accler., the engine.
>From 90% TPS to 100% just takes a small fraction of AE compared to 20-30%.
Some of this stuff you just have to monkey with and see what it does.
Bruce



> I'll ask this question again since I didn't receive a response the first
> time ... ... anybody?
>
> First let me say that I downloaded every archive I could find (diy_efi and
> gmecm).  I've also read every article I could find.  I have a really good
> understanding of accleration enrichment (pump shot).  I've even modified
> this in my 730 bin to account for the MiniRam and bigger TB.  However, I
> freely admit that the table presented in TunerCat, WinBin, etc and shown
> in the anht_hac.pdf makes ZERO sense to me.
>
> As the %TPS increases the multiplier decreases.  I would think that as the
> %TPS became larger then you would need more fuel and therefore have a
bigger
> multiplier???  The 747 ECMs pump shot makes sense ... as the %TPS gets
bigger
> the usec of extra pulse width gets bigger.  The 730 seems backwards to me.
>  Can anyone explain this?  The archives and the articles discuss
acceleration
> enrichment out the wazzoo.  But, nobody addresses the layout of this table
> in the 730 and defines what %TPS is and what the Multiplier actually
multiplies.
>  Furthermore, nobody explains the trend in the 730 pump shot table ... as
> %TPS increases the multiplier decreases.  Seems backwards.  I know I am
> missing something ... but, what?
>
> Tim

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