lookup resolution

[Matthew Harding]

i am toyiong with the idea of using a STAMP BS2SX as the heart of a simple
EFI system.  For anyone who doesn't know the STAMP, go to...

http://www.parallaxinc.com/

anyway, that doesn't really matter, my questions are regarding the
resolution of the lookup table, it is being designed primarily for my own
1.6 Litre Isuzu turbo engine, running 15 PSI boost max... therefore it will
be using a 2 bar MAP sensor, and will rev to around 8000 rpm

I was planning on using 16 RPM points and 64 load points, this would given
around 500 RPM and .5 PSI MAP resolution...

my questions; 

is this resolution high enough for a street driven engine ?

what sort of interpolation would i require, if any ?

would the engine still remain drivable without any interpolation... simple
chosing the next highest point in the lookup table ?



and some others, if you've got time :)

Is it ok to have the program say that whenever TPS = 0% simply go into
"idle mode" supplying a predetermined injector pulse ?

can anyone design a simple, adjustable curcuit for sensing when the
"accelerator pump" enrichment should be added... just something that went
HIGH when the TPS had been opened faster than a predetermine rate ?

is it ok to just use 1 bit for temp... ie, when the engine is below normal
operating temp add a set percentage to the injector pulse width, or does it
have to vary as the temp rises ?

I know, there is heaps of questions here, but any help would be greatly
appreciated...

thanks in advance

Matt