For the SC and turbo guys.
10 Second Club
Joined: Dec 2008
Posts: 330
Likes: 1
+1 For tuning it your self. Below is a example of how I tuned mine for the baseline. First car I ever tuned, ran 11.5 AFR down the track.
You already have the software, select the 2 or 3 bar OS upgrade, plug in the correct injector data, You will need to edit the Main VE Table after selecting the OS Upgrade, I used a stock table and added a small percentage. Then start working on the idle. Once you have that figured out, just add a percentage for fueling to the non idle part to be on safe side.
Take the car for a drive light throttle transitions and keep below 3500 rpms, You will be logging this drive, make it at least 30 minutes if possible. Then you will open your log up, go to the histogram for fuel trims, long term an short term. You then open up your tune, Go to AIRFLOW then Main VE, Copy your short term table in your histogram, Then go back to your tune and Select your Main VE table and use paste special add. It adjust your fuel trims, do the same for long term trims. This is to get your drive ability down. Load new tune into car, then open up the scanner and go to vcm controls and reset your fuel trims.
Once your drive ability is figured out and well. Before boosting you gonna need to adjust your timing and get the total to 16 or below while your in boost, you can add a degree at a time later. Start with your lowest boost setting, Now you want to go to your BOOST ENRICHMENT TABLE and add fueling there. You take your stoich AFR and divid that by your target AFR. I shoot for 10.5. So I come up with 1.39, You can use that all the way across the table.
May go a little richer for the baseline, try to stay lower in boost for testing, you should have a safe baseline tune and can go from there. Keep in mind I've only tuned my car with is a turbo 408 with 67mm turbo soon to be 88mm. You will be happy in the end when you are confident to make all changes needed, vs taking your car across the country for tuning.
You already have the software, select the 2 or 3 bar OS upgrade, plug in the correct injector data, You will need to edit the Main VE Table after selecting the OS Upgrade, I used a stock table and added a small percentage. Then start working on the idle. Once you have that figured out, just add a percentage for fueling to the non idle part to be on safe side.
Take the car for a drive light throttle transitions and keep below 3500 rpms, You will be logging this drive, make it at least 30 minutes if possible. Then you will open your log up, go to the histogram for fuel trims, long term an short term. You then open up your tune, Go to AIRFLOW then Main VE, Copy your short term table in your histogram, Then go back to your tune and Select your Main VE table and use paste special add. It adjust your fuel trims, do the same for long term trims. This is to get your drive ability down. Load new tune into car, then open up the scanner and go to vcm controls and reset your fuel trims.
Once your drive ability is figured out and well. Before boosting you gonna need to adjust your timing and get the total to 16 or below while your in boost, you can add a degree at a time later. Start with your lowest boost setting, Now you want to go to your BOOST ENRICHMENT TABLE and add fueling there. You take your stoich AFR and divid that by your target AFR. I shoot for 10.5. So I come up with 1.39, You can use that all the way across the table.
May go a little richer for the baseline, try to stay lower in boost for testing, you should have a safe baseline tune and can go from there. Keep in mind I've only tuned my car with is a turbo 408 with 67mm turbo soon to be 88mm. You will be happy in the end when you are confident to make all changes needed, vs taking your car across the country for tuning.
