I have a bung on my hks exhaust after the test pipe...will i get accurate reading if i put the o2 sensor after the test pipe ? thankss

 

the dp would be better but as long as its a test pipe and not a cat of any kind then the wideband at the opposite end would work.....if its the only option u have.

 

thanks man

 

As long as it is before any cat in the exhaust it will be fine. Wideband sensors measure a change, delta, lambda, whatever you want to call it, so as long as it is calibrated and before the cat in a closed system it doesn't matter where you put it. Most dyno facilities have a clip-on standalone WB setups which generally only go 6" to 2' up the back of the exhaust, used on catless exhaust systems obviously. They are equally as accurate as permanently mounted, in car systems.

More important is the clock position of the sensor which should be above 9 and 3 on the pipe itself. Below 9 and 3, the sensor is more likely to pick up garbage and condensation that is normally running down the bottom half of the pipe.

/brox

 

it will work, its going to be a bit later response on the gauge. If you dont have a cat it should not make a big difference at all.

 

Raif... is dead on with his answer.