Re: Cam tuning

["nacelp" <nacelp@bright.net>]

If you working on a S/C vehicle, your being very very course in your
calibration, IMHO
Grumpy


>   What I am trying to do is adjust the tables at 100KPA using the RPM to
> approximate the value entered for VE enrichment. This combined with the
AFR
> to RPM and AFR to Coolent temp at WOTenrichment seems to be working for my
> 10# Vortech setup. Granted there is a lot of trial and error involved to
see
> what works best.
>     Also I am using the same procedure for the timing.
>                               Jim
> From: Roger Heflin <rah@horizon.hit.net>
> Subject: Re: Cam tuning
> It should not be that difficult to modify the stock computer to use a
> 3bar sensor, I wonder if the following would work:
> modify the A/D input code to read in a 3bar value (0-255) and convert
> it to an equivalent 1bar value (0-255), and save the real pressure
> someplace else, that way you don't need to dig through the code and
> find all of the instances and figure out how a 3bar vs. 1bar sensor
> affects that code.   I looked at the code, and way too much stuff uses
> the map reading for various things.
> Then in the fuel calc code when the map is 100kpa multiply things
> times the real pressure (ie if the real MAP is 150kpa, multiply the
> fuel times 1.5).  1.5x the pressure should give 1.5x the flow or will
> a conversion table be required?
> Will this work, or will more adjusting need to be done?
> Roger
> On Tue, 21 Mar 2000, Douglas Ratcliffe wrote:
> > So what kind of difficulty would there be in converting to a 3-bar
Syclone
> computer?  Other than the fact there's 2 more cylinders and 1.4 L more
> displacement, are there any other factors?  Is the Syclone batch-fire MPFI
> like my Camaro?
> > Would the sensors and electronics (coolant temp, IAT,Idle motor,
> injectors, OPTISPARK!) even be compatible?  Wouldn't my computer have a
> hissy-fit?
> > How much is a computer like that?  Isn't only in the turbo cars?


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