VE Tables Fuel Tables Maps Igniton Spark

[TBK]

Does the 89 Corvette have VE tables since it is MAFS?

TK
-----Original Message-----
From: John Hess <johnhess at cris.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, February 07, 1998 10:00 PM
Subject: Re: VE Tables Fuel Tables Maps Igniton Spark


>The VE discussions are great;  but, can anyone tell me where they are in an
>'89 Corvette map?
>
>At 10:38 AM 2/7/98 PST, you wrote:
>>Well now that we're dun tuning we can all find a Mexican
>>restuarant and contribute to the methane problem, right.
>>Well ya if ya want, but there are just a few closing notes
>>I got..
>>  I have not read anything that says you can't run vaccum
>>referenced fuel pressure regulators with TBIs, the pressure
>>variance is usually too much, but if you run a second
>>fuel pressure regulator, you can trim this variance.  This
>>is the only way out of not being tune the acclerator pump
>>features of TBI, since no commercial program I've heard of
>>allows ya to do this, however once you have things rather
>>close you can try other chips from other applications,
>>and put your tables on them.  If ya remember from the
>>good old days, a big block always took more acclerator
>>pump than a small block (hint).
>>  The you can try adding timing to the spark table, and
>>remove a similiar amount from the WOT spark addition.
>>  The same with the fuel table, and WOT enrichment.
>>  When you start getting close, change only one thing
>>at a time, one thing only,  Move two and things might
>>seem fine but then 2 moves later everything takes a
>>dodo.
>>  One of the easiest errors is make is use too much
>>air filter, actually the problem is getting the air to
>>organize to flow thru the throttle body,  Having
>>several hundred square inches of filtering surface area
>>if fine,  but having a huge volume of air sitting on
>>top of the butterflies, can have it's down sides.  IE
>>when the throttles snap open, it takes/can take a
>>huge acclerator pump shoot to cover the delay in
>>this column of air to get moving.  If your using an
>>open element filter than I suggest doing this.
>>  Assemble the air cleaner housing, and element
>>as it would sit in the air horn.  Measure the distance
>>from the sealing ring portion to the lid,  any thing
>>more than an inch is too much in my book, and from
>>my testing, I have several cases to prove this.
>>Go to the hobby shop (say you had 3 1/4" dimension)
>>Lets also say the air filter sealing ring was 5" in diam.
>>You'll need enough thin brass to make two rings
>>Which 3" wide, and about 16" long.  To make a tube
>>5" in diam, and 2 1/2" tall.  The reason I say two is
>>you have to experiment, on the height, and that means
>>going too far, and that will ruin the first one.  I have't
>>found getting more than 1/4" close as necessary.
>>  HTH   Bruce    Anyone have any tuning questions
>>                          e-mail me, and I'll see if I got any notes
>>                          to write about.
>>                          DO NOT use staples for cone shaped
>>                          hat retension, unless helping someone
>>                          else with their hat
>>
>>
>