Rich in Texas!

[Sahli]

I'm going to retire for the night the Army likes early riser, talk to you
soon. Rich Ohh it's not DIACOM + I'll like to find the upgrade if you know
what I mean.
-----Original Message-----
From: Shannen Durphey <shannen at grolen.com>
To: diy_efi at diy-efi.org <diy_efi at diy-efi.org>
Date: Tuesday, September 19, 2000 10:26 PM
Subject: Re: Rich in Texas!


>Yikes!  You have a 305TPI?  Well, forget it.  It's hopeless.
>; )
>
>Just kidding.  The ARAP calibration that I mentioned is for a 350.
>It's probably not a good starting point for a 305.  When you start
>making changes, remember to start small and write everything down.
>Don't change a bunch of things today then try to decide tomorrow which
>one made the most difference.  Writing everything down will take
>longer and will be a PITA sometimes, but you'll really get a feel for
>some of the relationships between the numbers on the pc screen and the
>car's performance.  And it's still a whole lot easier than chasing
>down jets, metering rods or advance weights.
>
>Shannen
>
>
>Sahli wrote:
>>
>> Basically altering or refining the settings, how much
horsepower/percentage
>> of performance do you think the factory missed. I know I can make
>> adjustments to compensate for worn ring or sluggish injectors. I'm new at
>> this and the DIACOM has let me into some of the controls than you never
see.
>> I have a 305 TPI and there is a guy who is running 9's lotta Vortech and
>> intercooler to help. Just trying to maximum power without any explosions.
>> Thanks Rich
>> -----Original Message-----
>> From: Bruce Plecan <nacelp at bright.net>
>> To: diy_efi at diy-efi.org <diy_efi at diy-efi.org>
>> Date: Tuesday, September 19, 2000 8:49 PM
>> Subject: Re: Rich in Texas!
>>
>> >There's been mention of a 30HP lose in back to back testing, BUT that
was
>> in
>> >a turbo application at about 550HP.  I can see where in that application
>> >there may be cause for that.
>> >
>> >I'm not sure what your asking in the 2nd question
>> >Bruce
>> >
>> >
>> >> Sounds like an idea. I understand that the MAF is a restrictor. Is
there
>> >> actual horsepower to be found , when the ECM setting are
changed/altered?
>> >> Rich
>> >> -----Original Message-----
>> >> From: Shannen Durphey <shannen at grolen.com>
>> >> To: diy_efi at diy-efi.org <diy_efi at diy-efi.org>
>> >> Date: Tuesday, September 19, 2000 8:10 AM
>> >> Subject: Re: Rich in Texas!
>> >>
>> >>
>> >> >Hi, Rich.
>> >> >
>> >> >Sounds like the guys running large displacement engines or
>> >> >superchargers are finding the MAF sensor is only effective part of
the
>> >> >time.  It doesn't take long for the engine to start using  more air
>> >> >than the sensor was designed to measure. Once the sensor's maxxed
out,
>> >> >the ecm can only make it's best guess for fuel.  Sometimes the best
>> >> >guess is helped by add on injectors, or rising rate fuel pressure
>> >> >regulators.
>> >> >
>> >> >Bruce's suggestion is to use the ECM from a GMC Syclone or a
>> >> >turbocharged Pontiac Sunbird.  This ecm (part no. 1227749) uses a MAP
>> >> >sensor and can be used for an 8 cylinder engine.  You might think
>> >> >about converting over.
>> >> >
>> >> >Shannen
>> >> >
>> >> >
>> >> >
>> >> >Sahli wrote:
>> >> >>
>> >> >> Shannen,
>> >> >> This is Rich from Texas met you in NH. Well I'm scanning my 88 305
TPI
>> >> with
>> >> >> DIACOM and I'm trying to figure out what areas have to be altered
when
>> >I
>> >> >> install an supercharger. I realize that most of the fuel maps. Has
>> >> anybody
>> >> >> had success programming their own chip for supercharger
application,
>> >open
>> >> to
>> >> >> all. Thanks
>> >>
>>
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