Air /fuel ratio vs. rpm and Air/fuel ratio vs. load

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Sep 28, 2001 | 08:40 PM

CLEE

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Joined: Sep 2001

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From: Lakeland, Florida USA

Air /fuel ratio vs. rpm and Air/fuel ratio vs. load

I am using the ARAP bin and I am trying to understand some of the tables.
1. P.E. % change to fuel air ratio vs. RPM
2. Open loop fuel air ratio % change vs. load

I have my thoughts on the tables, but I would love to hear others.
Can anyone give some insight on these tables?

88 GTA 350

Sep 30, 2001 | 10:15 AM

Grumpy

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Joined: Jun 2000

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From: In reality

Car: An Ol Buick

Engine: Vsick

Transmission: Janis Tranny Yank Converter

Quote:

<font face="Verdana, Arial" size="2">Originally posted by CLEE:

1. P.E. % change to fuel air ratio vs. RPM
2. Open loop fuel air ratio % change vs. load
</font>

P.E., Power enrichment.
This is a % of fuel added when in P.E..
PE is a table that enables extra fuel as a function of % TPS

the second one is fuel added due to load. The wording is funny, I would think they mean LV8. As you reach max torque and go to HP, the engine will run sweetest with a taylored fuel curve rather then at a linear AFR.

Jul 3, 2003 | 10:23 AM

Ragtop89

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Joined: Nov 2002

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From: Ragtopia

Do the 2 tables interact?
How do they affect each other?

Jul 4, 2003 | 11:38 AM

justme

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Joined: May 2002

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From: Amarillo, TX

Quote:

Originally posted by Grumpy
As you reach max torque and go to HP, the engine will run sweetest with a taylored fuel curve rather then at a linear AFR.

Grumpy, could you go into a little detail about how you play with this?