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Forum nameEngine Management Systems & Controllers
Topic subjectAFR Table
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=54&topic_id=4902
4902, AFR Table
Posted by 740 turbo brick, Dec-31-69 06:00 PM
I figured Id post this up here and get some opinions about it. Yesterday I had a buddy of mine drive my car on the freeway while I was in the passenger seat with my laptop. I was mostly looking to make my car get awesome gas milage on the freeway and when cruising around. After finding where my car sits on the table and adjusting it to my likes, I tried somewhat blending the tables numbers to get more of a ramp than an abrupt change. This is what I ended up with.



The 15.0 is where my car sits at 70MPH on the freeway. At a steady RPM my WB will read from 14.5 to 15.1, osciallting just slightly, almost like stock. Im thinking now I may move where the 12.5 WOT is back a few RPM blocks. I really dont start making any power until after 4k though
4916, RE: AFR Table
Posted by Star Turbo Talon, Dec-31-69 06:00 PM
You can make that 15.0 box much bigger to cover a larger cruising range to get better mileage. I want to say mine is set to 15.5 from 2500 to 6000 50ka to 80kpa. With my TB my cruise Vaccuum is 75ka though.
4918, RE: AFR Table
Posted by 740 turbo brick, Dec-31-69 06:00 PM
Originally posted by Star Turbo Talon
You can make that 15.0 box much bigger to cover a larger cruising range to get better mileage. I want to say mine is set to 15.5 from 2500 to 6000 50ka to 80kpa. With my TB my cruise Vaccuum is 75ka though.


Once again, Thanks Terry. At least I know Im heading in the right direction. As I said, I drove down the freeway with Autotune on and it smoothed out my VE table and should be getting me some better milage. My tuner was saying I should have 13.5s from like 70 up, but with Crower 2s, ported/polished head, ported intake and 60mm TB, my map rarely ever sees low vacuum.
4919, RE: AFR Table
Posted by Star Turbo Talon, Dec-31-69 06:00 PM
I will agree with your tuner. Your 100 range should be around 13.8~13.9. You can try richening up the lower rpm range at 100kpa to 13.5~13.6 to see if it helps you rev up.

I tune my Mopar 383 at 14.0 at WOT where i make max power and torque.
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