Oakley's History Lesson and Build Thread
Sep 4, 2014 | 06:32 PM
#661
I have the NGK AFX wideband and their display only shows in the gasoline scale. So, when my gauge shows 14.6 I know that my true AFR is 9.8, given that I was running E85.
Now, only my EFI live scan tool, I have a PID set up to display the AFR in the E85 scale, so on there is does display the correct AFR. Regardless though, the AFR is not that important to me. Lambda is what I'm after. It would be nice if the gauge had the option to show in lambda, but either way its fine.
Now, only my EFI live scan tool, I have a PID set up to display the AFR in the E85 scale, so on there is does display the correct AFR. Regardless though, the AFR is not that important to me. Lambda is what I'm after. It would be nice if the gauge had the option to show in lambda, but either way its fine.
The thing that confuses me if why you say AFR is not important but lambda is. They are showing the same thing... one is just a multiple (by 14.7 on your gauge and by 9.8 in EFI). So in a way that statement is kind of contradictory.... and now I'm just being a pain in the ***. Please dont take that as me not knowing what lambda is
Sep 4, 2014 | 06:35 PM
#662
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
Here I fixed it for you:
I was simply trying to ask if his gauge was showing him lambda (1) or AFR on a scale of 9.76 for ethanol.
Sep 4, 2014 | 06:39 PM
#663
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
How do I check to see if my wastegate is staying shut?
Sep 4, 2014 | 06:42 PM
#664
Thanks that's all I was asking for.
The thing that confuses me if why you say AFR is not important but lambda is. They are showing the same thing... one is just a multiple (by 14.7 on your gauge and by 9.8 in EFI). So in a way that statement is kind of contradictory.... and now I'm just being a pain in the ***. Please dont take that as me not knowing what lambda is
The thing that confuses me if why you say AFR is not important but lambda is. They are showing the same thing... one is just a multiple (by 14.7 on your gauge and by 9.8 in EFI). So in a way that statement is kind of contradictory.... and now I'm just being a pain in the ***. Please dont take that as me not knowing what lambda is
Sep 4, 2014 | 09:38 PM
#665
Alright you got me there. I used the wrong word. But I know you knew what I meant.
Edit: and at the end of the day it really is a multiple of lambda, not a true AFR. For example I run pump 93 and both my gauge and HPT show AFR on the gasoline scale. My fuel is really e10. So the AFR I'm reading is false. It's a multiple of lambda on the gasoline scale, which I'm very used to and comfortable with, not true AFR.
Edit: and at the end of the day it really is a multiple of lambda, not a true AFR. For example I run pump 93 and both my gauge and HPT show AFR on the gasoline scale. My fuel is really e10. So the AFR I'm reading is false. It's a multiple of lambda on the gasoline scale, which I'm very used to and comfortable with, not true AFR.
Last edited by Vortec350ss; Sep 4, 2014 at 09:45 PM.
Sep 4, 2014 | 09:46 PM
#666
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Sep 4, 2014 | 10:29 PM
#667
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
Alright you got me there. I used the wrong word. But I know you knew what I meant. Edit: and at the end of the day it really is a multiple of lambda, not a true AFR. For example I run pump 93 and both my gauge and HPT show AFR on the gasoline scale. My fuel is really e10. So the AFR I'm reading is false. It's a multiple of lambda on the gasoline scale, which I'm very used to and comfortable with, not true AFR.
Sep 4, 2014 | 10:32 PM
#668
Thread Starter
Joined: Dec 2010
Posts: 5,235
Likes: 4
From: Las Vegas, NV
Yea I think AEM calls it the crack pressure or something. I have it set correctly for my spring in the gate. But I think I am only running the 6lb spring. Would a stiffer spring help footbrake higher. I don't see why it would since the controller should add pressure to the top of the gate until the desired boost pressure is met. Or am I thinking about it wrong?
Sep 5, 2014 | 12:00 AM
#670
When lambda is 1 my gauge will show 14.7. When lambda is .77 my gauge will show 11.3. Correct?? It's an exact multiple of lambda if that statement is true.
