ls2 bait

iTrader: (11)

wouldnt it be better to have it after the merge? that way u r getting the reading from both banks and not just one side of the car? unless u have flow matched injectors etc im sure there is some deviation?

95 Z28

iTrader: (21)

The way I figured it was, I want both banks being read, but you also want the bung as close to the engine as possible, so you get a more precise, accurate reading. When I had a Y pipe setup, mine was a few inches after the merge, going in from the side of the pipe.

jmm98LS1

iTrader: (28)

Ideally you'd want two bungs, one on each bank right after the collector and switch the wideband back & forth (or run dual widebands $$$). This would allow you to see variations from bank-to-bank instead of a mix of the two. Sticking it right after the merge would work fine though, so long as the sensor has no problem staying hot enough.

TheLS1Kid

iTrader: (12)

Where is the best location if you have true duals?

I'm guessing on either bank as close the the motor as possible?

jmm98LS1

iTrader: (28)

On my duals, I've got it 8" behind the driver's side collector. I chose the drivers side because it tends to run a wee bit leaner than the passenger side, as to error on the side of safety.

TheLS1Kid

iTrader: (12)

Cool, so did you just buy an o2 bung and drill a hole and weld it on?

ls2 bait

iTrader: (11)

is that a general rule of thumb or is that just what uve noticed in logging ur motor?

jmm98LS1

iTrader: (28)

Cyl #7 is known to run a bit leaner than the rest, although I have no way to monitor individual cylinders to personally verify it. I have noticed through logging, as have many others, that the drivers side does run a tiiiny bit leaner.....nothing huge though.

Soul TKR

iTrader: (4)

I hear right after the header collector is the best location...