Snyper

iTrader: (27)

Just trying to figure out where to put my o2 sensors..someone said it wasn't a good idea to put them in the cross over and to put them in the downpipe and some said it was fine....any ideas?

XtremeDime

iTrader: (16)

1 in each crossover and use a wideband in the DP.

reamo04

iTrader: (9)

if you have both banks in the downpipe, how is the ECU going to account for the different banks running different if they're reading the same thing in the downpipe?

Put them in the crossover, and a wideband in the downpipe

Snyper

iTrader: (27)

Thats what I thought..but I was told otherwise by a friend.

XtremeDime

iTrader: (16)

Kick him in the nuts

reamo04

iTrader: (9)

and then laugh when he puts his in the DP and it doesnt read both banks

098z28

iTrader: (12)

lol

black98ws6ta

iTrader: (77)

More then likely a 02 sensor will read alittle off and also fail faster being pre turbo in each bank. I usually tune OL to avoid potential problems.

Snyper

iTrader: (27)

why?.................

black98ws6ta

iTrader: (77)

The pressure differential will cause the arf's to be slightly off, and the heat pre turbo will take its toll on the sensor.

Starting on page 7 of this installation manual for a AEM wideband its say's the same thing. I have read similar in many other places.

http://www.aempower.com/images/produ...%2030-4100.pdf

Or page 5 here:

http://www.innovatemotorsports.com/s...LM1_Manual.pdf

Snyper

iTrader: (27)

Why are the factory o2 bungs ON the manifolds on a c6 then? Doesn't seem to make sense.

black98ws6ta

iTrader: (77)

Does a stock c6 come with a turbo? The issue is the turbo causing the backpressure, and heat.

Snyper

iTrader: (27)

So what are my other options..how do people usually run them?

black98ws6ta

iTrader: (77)

If you are going to run them in a single turbo application you need to put one in each bank pre-turbo. If you are running twins you can put them in the downpipes post turbo. In a single app. I either dont use factory sensors and tune in open loop, or dont expect them to last long.

Snyper

iTrader: (27)

I have emissions to deal with unfort. Maybe I can get 2 tunes. One with for emissions and one without for normal driving and just install them when I go to get tested.

XtremeDime

iTrader: (16)

Wait, you can pass IM with an LSX-swapped and turboed 350z? What the hell? I cant even pass with the stock motor turboed. You east coast guys are lucky lol

Snyper

iTrader: (27)

Its not as easy as it sounds. As long as my ecu isnt throwing any codes or a bunch of "not readys" im set.

XtremeDime

iTrader: (16)

Still man, I dont have a prayer lol

kbracing96

iTrader: (25)

Narrow band O2 are fine pre-turbo, they take heat much better then WB o2's. And there not used in WOT anyway so accuracy is not important there. Mine have been pre-turbo for 4 years and still work great!

AaronSRT8

I guess you can try the narrowband pre turbo, but I've always heard it's a bad idea. No first hand experience though. My WB told me if it's on a turbo app, it needs to be at least 12" past the turbine on the downpipe. I put it about 24" past, and no problems.