dumb Q. but what does it mean to run lean or rich??
Thread Starter
Senior Member
Joined: Jul 2001
Posts: 556
Likes: 0
From: tucson AZ, USA
dumb Q. but what does it mean to run lean or rich??
the title explains it exactly, what does it mean to run lean or rich?? and what is better to run on? does it mean the air flow? please enlighten me so i dont have tog ive myself head aches trying to figure it out, thanks
P.S. if i have MPFI is it good to run lean or rich?
------------------
-------------------------
87 V6 2.8 MPFI Camaro SC
-------------------------
Modded dual snorkle intake "bottoms hacked off", K&N air filters, Crane Cams 8.5mm fire wire, Accel Cap and Rotor, MSDcoil. upcoming mods:
Dynomax CatBack exaust system = VERY SOON
crane cams camp shaft, CC roller rockers, double timing chain
P.S. if i have MPFI is it good to run lean or rich?
------------------
-------------------------
87 V6 2.8 MPFI Camaro SC
-------------------------
Modded dual snorkle intake "bottoms hacked off", K&N air filters, Crane Cams 8.5mm fire wire, Accel Cap and Rotor, MSDcoil. upcoming mods:
Dynomax CatBack exaust system = VERY SOON
crane cams camp shaft, CC roller rockers, double timing chain
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
"stoichiometric" air/fuel ratio = 14.7:1.
Running "rich" means there's more fuel in the air/fuel mix. Running lean means there's less fuel. For power, it's better to run a bit lean than rich. For fuel injection, nothing needs to be changed. You can change the fuel presure regulator (on the fuel rail) to be higher or lower. The higher the pressure is the higher the air/fuel ratio.
Running "rich" means there's more fuel in the air/fuel mix. Running lean means there's less fuel. For power, it's better to run a bit lean than rich. For fuel injection, nothing needs to be changed. You can change the fuel presure regulator (on the fuel rail) to be higher or lower. The higher the pressure is the higher the air/fuel ratio.
Thread
Thread Starter
Forum
Replies
Last Post
u r sofa king we tah did
DIY PROM
3
Mar 28, 2002 05:50 PM
