 How close is close enough..., Air Fuel Ratio-what kind of numbers do you run? |
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| computers4kids |
 Nov 17 2013, 09:31 PM
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Love these little cars!  Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None  |
I've been playing around with metering rods, springs, and jets for my Edelbrock 600 on my conversion SBC teener, using primarily a vacuum gauge and AEM wideband. I'm currently getting these type of readings
Idle-around 14.5 Cruise Mode--light throttle: 13.7 Power Mode--Heavy Acceleration: 12.3 I'm curious what kind of ratios you carb guys run? The car runs great, but I just wondering if I need to lean the power mode out. The motor likes these numbers and the plugs look good. Also curious, anyone with FI have some numbers available from their wideband? Thanks, Mark Attached image(s) 
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| Mike Bellis |
Nov 17 2013, 09:57 PM
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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My idle is 18-23
Cruise 14-17 under boost 8-10 But I'm EFI and turbo. But the engine really likes it! (IMG:style_emoticons/default/evilgrin.gif) |
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| JRust |
Nov 17 2013, 10:12 PM
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914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest
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QUOTE(Mike Bellis @ Nov 17 2013, 07:57 PM)  My idle is 18-23 Cruise 14-17 I like that ratio. I need to learn my Stinger software. I stay in the 12-14 range but seems a little squarely sometimes. Goes lean on acceleration instead of rich? Not all the time but all I have done is mess with the trims in it. Just need to spend time learning that system & how to adjust the AFR specifically. |
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| Mike Bellis |
Nov 17 2013, 10:21 PM
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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QUOTE(JRust @ Nov 17 2013, 08:12 PM) QUOTE(Mike Bellis @ Nov 17 2013, 07:57 PM) My idle is 18-23 Cruise 14-17 I like that ratio. I need to learn my Stinger software. I stay in the 12-14 range but seems a little squarely sometimes. Goes lean on acceleration instead of rich? Not all the time but all I have done is mess with the trims in it. Just need to spend time learning that system & how to adjust the AFR specifically. That partially why I went with a factory ECU and not a programmable. Way more computing power. (IMG:style_emoticons/default/type.gif) |
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Posts in this topic
computers4kids How close is close enough... Nov 17 2013, 09:31 PM
ConeDodger You'll get better mileage with a leaner cruise... Nov 17 2013, 09:48 PM
Andyrew
My idle is 18-23
Cruise 14-17
under boost 8-10
B... Nov 17 2013, 11:12 PM brant Water cooled motors like slightly different number... Nov 17 2013, 10:52 PM Andyrew You can lean it out a little bit for your primary ... Nov 17 2013, 11:09 PM Mark Henry For an air cooled engine you really want to be loo... Nov 17 2013, 11:26 PM AfricanHijinx I like your dash pad Nov 18 2013, 11:29 AM sgetsiv I'm just getting started on carb tuning - been... Nov 21 2013, 09:17 PM 72hardtop
I'm just getting started on carb tuning - bee... May 18 2014, 12:28 PM |
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