afr

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Dec 14, 2009 | 10:55 PM

argon929

Thread Starter

Beginning Member

Joined: Nov 2009

Posts: 38

From: Kimball,MI

afr

just cerious does any body no the air to fuel ratio for a stock 1999 blazer 4.3 vortec? i am getting into tuning my blazer adjusting fuel and spark tables and such i am try to get familiar with it all

Dec 15, 2009 | 03:13 AM

rriddle3

BF Guru

Joined: Dec 2006

Posts: 6,594

From: Fort Worth,Texas

IIRC, it's 14.7:1 air to fuel.

Dec 15, 2009 | 06:13 AM

swartlkk

Administrator

Joined: May 2005

Posts: 41,331

From: Waterloo, NY

Quote:

Originally Posted by rriddle3

IIRC, it's 14.7:1 air to fuel.

Yep, that is basically the optimum AFR for any gasoline fueled internal combustion engine.

Dec 16, 2009 | 10:09 AM

argon929

Thread Starter

Beginning Member

Joined: Nov 2009

Posts: 38

From: Kimball,MI

thanks again i could not find a damn thing online any place thanks guys

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