AFR Guage
#1
Junior Member
Thread Starter
Join Date: Apr 2013
Location: Utah
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
AFR Guage
Hey everyone, I have a 12A with a Weber IDF40 and Garret turbo; I would like to add an A/F ratio gauge. My issue is, I don't want to install two gauges, one for each intake. I'm only considering installing two, to be sure A/F mixes are the same. Am I going overkill, or are two guages reasonable?
#2
Retired Moderator, RIP
iTrader: (142)
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes
on
114 Posts
Afr's are measured after the Turbo,so you only need the One gauge.
It should be installed about 30 inches after the turbo,ideally to get accurate readings.If you install closer then it can damage the sensor(burn it out).
Is your First Name "Gorilla"?...lol! (wrestler!)
It should be installed about 30 inches after the turbo,ideally to get accurate readings.If you install closer then it can damage the sensor(burn it out).
Is your First Name "Gorilla"?...lol! (wrestler!)
#3
Junior Member
Thread Starter
Join Date: Apr 2013
Location: Utah
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
I thought A/F measured the intake charge, shows what I know. I only have about 20 in after the turbo. I don't have an actual rx7; my sand rail is rotary powered.
#4
Retired Moderator, RIP
iTrader: (142)
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes
on
114 Posts
and the things that you can measure at the intake is Air intake temp, boost,and vacuum.
#5
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
AFR readings on a turbo rotary are NOT optional! I'm actually quite surprised the engine has survived with that volatile combination this long without any type of AFR feedback for the tuner. Reading plugs and EGTs is all well and good but that will only tell you that the engine has been running lean, not that it is running lean.
Thread
Thread Starter
Forum
Replies
Last Post