'7747 bin wanted

[Shannen Durphey]

Is 94 octane even available there?
Shannen

Marc Piccioni wrote:
> 
> We are at close to 4000' elevation here and I can run addtional advance on
> 87 octane without detonation. On my 383 Malibu at sea level I used to have
> to run 94 octane to keep it happy but here I can run 87 with a 2 deg.
> retard on the base timing. On 92 octane and 36 deg. total timing it runs
> 14.30 @ 95 MPH here.
> 
> /Marc
> 
> ----------
> From:   Bruce Plecan[SMTP:nacelp at bright.net]
> Sent:   November 18, 1999 8:50 AM
> To:     gmecm at efi332.eng.ohio-state.edu
> Subject:        Re: '7747 bin wanted
> 
> Subject: Re: '7747 bin wanted
> 
> OK, fine use 0.  Now, if you think about my explainations, and even think a
> bit further you'll see the logic in this.  If he can't find the gas to
> support that then less will have to do, any action taken is/should be
> considered temp. unless he's just going to Mickey Mouse it together, and
> ignore doing a proper prom for it.
>    I've tried 0-12d initial timing.  I've run from 0-10d hot spark bias,
> and
> probably 0-24d cold.  I've run VE's from single digits to into the 20's at
> idle.  I've tried numerous IAC pintles.
>   I report what works for me.  I've got a 224d @ 050  110 LC 470" lift cam
> and it idles at 650-675 in gear..
>   Grumpy
> 
> | OE setting is TDC with EST bypassed for an 89 5.7 TBI-- I ran into some
> | weird BL and IAC numbers with one that was over-retarded in base a while
> | back--customer never knew about the EST connector in the harness. Are you
> | "not" going to get lower IAC counts and a faster (uncontrolled) idle with
> a
> | higher base setting ??
> |
> | Lyndon.
> | -----Original Message-----
> | From: Bruce Plecan <nacelp at bright.net>
> | To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
> | Date: November 17, 1999 6:39 AM
> | Subject: Re: '7747 bin wanted
> |
> |
> | >Subject: RE: '7747 bin wanted
> | >
> | >6d BTDC, with EST disconnected, min idle speed, will do.  For grins
> often
> I
> | >use
> | >8-10, thou at 10 hot restarts can start to get tempermental.
> | >  If you don't have a burner yet, you might talk kindly to the guys at
> the
> | >local recycling center, and see if you can appropriate proms from other
> | 747s
> | >they may have.
> | >Grumpy
> | >
> | >
> | >| Well after many more hours than expected, the engines running. Anyone
> | have
> | >the base timing spec for an '89 5.7 light duty engine?
> | >|
> | >| /Marc
> | >|
> | >
> | >
> |
> 
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