All right I have been burning chips for like a mouth now I am using the ARAP bin. I was knocking a lot so I decided to tone down the timing. I would like to know if I am doing this the right way and most efficient way. I first went for a drive and recorded a few hard accelerations in my car using Craig Moates software. Then I loaded the data in excel and I looked at the RPM and Load that I was getting knocks and timing retard at and lowed the timing in TunerCAT there. Is that the most efficient way of tuning your timing tables just by messing with it a little bit then going out and recording data and doing the same thing over again? Does anyone have any tips?

Here is a copy of my 3 hard accelerations, the first run the car is in open loop

 

ttt

 

Sounds good to me


By the way if you're getting knock showing up at a certain RPM I'd make your changes a few hundred RPMs before that instead of RIGHT at the number

 

Should i keep, lowering the ARAP timing advance untill i get no knock at WOT. Is that what you do, or do you have some knock at WOT?

 

Its acceptable to have minimal knock counts, If its under WOT just try to keep the amount of timing it retards to a minimum.

 

Are you doing this in the 3D spark table, or in the PE Spark Advance array? Not sure what it's called in TunerCat, I use WinBin.

 

89 Iroc Z


What version of craigs software are you using? The output is alot cleaner than mine. Do you have something parsing the file or is that the way it dumped?

 

I am using version 8.51. His software dumps it into a .csv file. I then went through it and made it a lot cleaner and highlighted the engine knock areas.

 

I was a few versions off, it was the title font of the columns and the highlighting that threw me off, I thought maybe that was the way another scanner dumped.

 

I am pretty sure there is a way to make excel automaticly do this so you don't have to go through it and clean it up. I'll look into it.

 

I am making a Macro to do this.