Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Tuner cat tables

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Old Feb 23, 2004 | 10:38 PM
  #1  
Schurters LT1's Avatar
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From: kitchener/Ontario
Question Tuner cat tables

Do you need these tables and what are they for.....

1-spark correction vs map vs coolant
2-max retard vs rpm in wot
3- " spark retard vs map
4-knock fast attack rate vs rpm
5-" retard rec rate vs rpm
6-max knock retard vs rpm & map

when dose wot start in kpa

thx jeremy... i would like to talk more about the tables
Old Feb 23, 2004 | 11:51 PM
  #2  
turbo_Z's Avatar
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Joined: Nov 2001
Posts: 3,515
From: Kansas
Re: Tuner cat tables

Originally posted by Schurters LT1
Do you need these tables and what are they for.....

1-spark correction vs map vs coolant
2-max retard vs rpm in wot
3- " spark retard vs map
4-knock fast attack rate vs rpm
5-" retard rec rate vs rpm
6-max knock retard vs rpm & map

when dose wot start in kpa

thx jeremy... i would like to talk more about the tables
1- this table is used for spark corrections when the motor is hot and cold.. you usually can run more advance when its cold and less when its hot for knock reasons.

2,3,6- the words spark and knock are essentially the same thing. in fact if you make changes in 1 table, tunercat makes the same adjustment automatically in the other. 2 of them are for RPM and 2 of them are for MAP. The higher the MAP and RPM.. the more knock retard you want in case the computer senses real knock. I just left mine stock for that reason.

4-in this table for instance if the computer senses knock and pulls 2 degrees, that number is multiplied by the value in those tables. so as you go higher up in the RPMs, the mulitplication factor increases so knock retard increases by that factor.

5-this is the knock retard recovery rate i believe. What this means is if the computer senses knock and retards the timing 5 degrees, there will be a certain amount of time that needs to pass before the knock retard returns to "0". This is why, if you have ever looked at a log, once there is knock present... the computer always shows 1-3* in areas there really shouldnt be any. I guess its a safety precaution..

I dont remember exactly when WOT is enabled but if you look in the ECM constants table you will find the minimum RPM and MAP for WOT.
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