[Gmecm] More '730/$8D tuning questions...

[Clair Davis]

Thanks for that suggestion, Mike, that's an interesting looking bin.  The VE
curves have a very similar character to what mine could/should be on the WOT
end, but it still floors me that VE can be so high in the idle range - over
60 at 800rpm!  My lean-best-idle appeared to be in the low-mid 40's, but
that may make sense with my low 8.5:1 CR.

I'm tempted to just tweak the injector & cylinder specs, tone down the spark
advance table, and give it a spin.  If I'm thinking about this right, having
the VE's too high just means I'll tend rich with the INT/BLM's again.  If it
runs like crap, at least I have some confidence that it hasn't been monkeyed
with too much before I got it.

Clair


----- Original Message ----- 
From: "Mike Wilson" <mwilson at bwarch.com>
To: <gmecm at diy-efi.org>
Sent: Tuesday, April 17, 2007 11:29 AM
Subject: RE: [Gmecm] More '730/$8D tuning questions...


> Clair, with a manual transmission & iron heads the best way for you to get
> started is to use the 1992 5.0 liter 5-speed Camaro bin AXXC and copy the
> VE, PE, AE & cold start up info from the 350 auto AUJP bin into the 305
bin
> plus change the cylinder volume & injector flow rate and disable VATS.
>
> You may want to pull more timing out because of your data logging on your
> specific engine but this should get you a lot closer to a drivable engine
to
> start with. With a good manual transmission iron head base program you can
> then tune for your cam and headers and modify the rest of the program to
fit
> your application.
>
> I did this when I put a T-56 into my 91 5.7 TPI Z/28 and it worked very
well
> but my engine was otherwise stock so I only had to deal with the manual
> transmission issue.
>
> Hope this helps,
> Mike
>
> -----Original Message-----
> From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
Behalf
> Of Clair Davis
> Sent: Monday, April 16, 2007 8:38 PM
> To: For discussion of GM EFI hardware and software
> Subject: [Gmecm] More '730/$8D tuning questions...
>
> ... 3) Is there a benefit to using a different base cal, such as ANHT vs.
> AUJP or whatever, as long as they're for essentially the same family of
> engines?
>
> Thanks in advance as usual, and I really am glad to be able to drive this
> old girl again, as frustrating as it is at the moment.
>
> Clair
> 69 Plymouth Valiant, 340+730
> Fort Worth, TX
>
>
> _______________________________________________
> Gmecm mailing list
> Gmecm at diy-efi.org
> Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
> Main WWW page: http://www.diy-efi.org/gmecm
>