What's your A/F on Overrun?, 'Nother D-Jet A/F Question |
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What's your A/F on Overrun?, 'Nother D-Jet A/F Question |
BeatNavy |
Mar 12 2017, 12:28 PM
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#1
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
For those with D-Jet, what are you typically seeing for A/F ratio on a medium to hard overrun? Based on what I've read here mine seems too rich - like in 10's and 11's. Once the RPM's drop closer to idle it bounces back up to normal idle A/F ratios. Does A/F on overrun even matter?
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BeatNavy |
Sep 27 2018, 11:20 AM
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#2
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
I played around with my MPS, decal valve, tuning and a host of other things since I originally posted this. Car runs great, idles well, and is blast to drive. But I still see AFR numbers in the 12 range during decal, and my MPG numbers are not great. For the most part, I've given up worrying about it much, particularly since I have plans for a different motor before too long.
All good (IMG:style_emoticons/default/beerchug.gif) |
Olympic 914 |
Sep 27 2018, 04:03 PM
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#3
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Group: Members Posts: 1,668 Joined: 7-July 11 From: Pittsburgh PA Member No.: 13,287 Region Association: North East States |
I played around with my MPS, decal valve, tuning and a host of other things since I originally posted this. Car runs great, idles well, and is blast to drive. But I still see AFR numbers in the 12 range during decal, and my MPG numbers are not great. For the most part, I've given up worrying about it much, particularly since I have plans for a different motor before too long. All good (IMG:style_emoticons/default/beerchug.gif) I also have played around with my MPS, and timing. On decal I see around 15.0 + afr. I may be running a little on the lean side though. But on a cruise the AFRs vary from mid 12s to high 14s depending on throttle position. Do you have a meter to check your MPS values? I have notes around here somewhere with where I set the MPS on my car. Maybe we could compare settings. Little different system since I have the 037 ECU |
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