 Air Fuel Mixture?, 2.0L D-Jet |
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| gunny |
 Nov 29 2013, 07:53 AM
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#1
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Member  Group: Members Posts: 205 Joined: 17-October 12 From: Madison Al Member No.: 15,051 Region Association: South East States  |
I have a Wideband Air fuel gage and have been adjusting my MPS. When I was tuning injected motorcycles I was shooting for ~12.7:1. What numbers do I want to shoot for in a 2.0L FI D-Jet runing regular fuel.
I was thinking that I want to keep the numbers setween 12:1 and 13.5:1. I have hear that >14:1 is to lean. |
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| gunny |
Nov 29 2013, 02:52 PM
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#2
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Member Group: Members Posts: 205 Joined: 17-October 12 From: Madison Al Member No.: 15,051 Region Association: South East States |
Sounds good, I'm at 13:1 at Idle (I can adjust the ECU screw and TB screw)
The rest of the time I'm between 12:1 WOT and 13.5:1 low load depending on speed and load. I'm trying to avoid going over 14:1 is 12:1 to rich at full load and WOT? Is staying <14:1 good? |
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| gothspeed |
Nov 30 2013, 09:23 AM
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#3
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Senior Member Group: Members Posts: 1,539 Joined: 3-February 09 From: SoCal Member No.: 10,019 Region Association: None |
QUOTE(gunny @ Nov 29 2013, 12:52 PM)  Sounds good, I'm at 13:1 at Idle (I can adjust the ECU screw and TB screw) The rest of the time I'm between 12:1 WOT and 13.5:1 low load depending on speed and load. I'm trying to avoid going over 14:1 is 12:1 to rich at full load and WOT? Is staying <14:1 good? Yes that will work. however at idle there is really no reason not to be at 14.7:1. Any more rich than that and one is simply contaminating the oil quicker. The only reason to go rich to say 12.6:1 is for power. But even 13:1 is plenty rich for power. If you are pinging, then the timing needs to be adjusted. Excessive fuel dilutes cylinder wall lubrication which increases wear. (IMG:style_emoticons/default/popcorn[1].gif) |
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Posts in this topic
gunny Air Fuel Mixture? Nov 29 2013, 07:53 AM
Mark Henry
I have a Wideband Air fuel gage and have been adj... Nov 29 2013, 07:58 AM
gunny
I have a Wideband Air fuel gage and have been ad... Nov 29 2013, 08:29 AM Mark Henry
[quote name='Mark Henry' post='1963948' date='Nov... Nov 29 2013, 09:39 AM gothspeed
[quote name='Mark Henry' post='1963948' date='No... Nov 29 2013, 02:00 PM Mark Henry
Sounds good, I'm at 13:1 at Idle (I can adjus... Nov 29 2013, 02:55 PM gunny
Sounds good, I'm at 13:1 at Idle (I can adju... Nov 29 2013, 04:39 PM Bleyseng I say 12 to 1 at WOT starting at 2000rpms and it w... Nov 30 2013, 10:29 AM 72hardtop Avoid hanging out in the 14.7 - 15 - 15.5 zone (th... May 18 2014, 12:15 PM |
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