SaultysHuggerSS

iTrader: (17)

didnt have any 02 bungs on my custom front mount kit figureing i nned to add some just after the headers True?

also whats the best place for a wide band in the crossover or in my down pipe or doesnt it matter

Jose93z28

iTrader: (3)

O got my o2s one each after the headers and it does just fine. My friend is running both 02s
on his down pipe with no problems either so I don't know whats best?

Reject

iTrader: (24)

if you go open loop speed density you dont need them at all

but i'm wondering about the wideband too, weather to put them where the pipes merge together before the turbo or in the down pipe or what

Boosted 99 TA

iTrader: (1)

is it better to go open loop? do you have to do that if you do a SD tune. What are the benefits? Dont wanna hi jack your thread grant but im sure you are wondering the same thing

RAACCR

Stock O2 sensors can go anywhere. However, wideband O2s must go in in the downpipe...they don't like the high pre-turbine pressures and temperatures.

Reject

iTrader: (24)

how far down streem from the DP?

SaultysHuggerSS

iTrader: (17)

so if im going SD the leave out my o2 sensors? and still wondering Best place for wideband thanks

Reject

iTrader: (24)

you can do either OLSD or CLSD. wideband is suppost to go in the down pipe. i am guessing a foot or two after the turbo, RAACCR wanna help on that ?

RAACCR

I usually shoot for 18" - 24" past the turbine. Also, be sure that the sensor is somewhat vertically upright; ideally between the 10:00 and 2:00 positions; this prevents condensation from pooling into the sensor when you park your car.

Boosted 99 TA

iTrader: (1)

what is the difference when you do a OLSD and a CLSD? which is better? why?

RAACCR

Both rely on a VE maps (and sometimes, other "correction" tables such as IAT, ECT, yada yada yada). Open Loop does not make any adjustments based on O2 feedback, while closed loop does (adjustments may be based on long term feedback, short term feedback or both, depending on tuner's preference and system capability). Which is "better" and why could be debated to the end of the internet. Long story short: its the tuner's preference for each specific application.

SaultysHuggerSS

iTrader: (17)

Hey thanks for all the info im going to have to call my tuner and see what he perfers but is thier a prefrence open or closed loop for daily driver or does it not matter street or strip being open or closed loop?

Reject

iTrader: (24)

i like OLSD as you have absolute total control, nothing to do little tricks behind your back, but everyone is different. do a search in the PCM section, been discussed a few times already

Johawk

iTrader: (2)

Widebands are expensive. They are heated so you can put them pretty far down the down pipe so it will last longer

Hennytime

iTrader: (33)

200 bucks and 70 to replace the sensor (if it fails-mines going a year strong) is expensive? the peace of mind knowing whats going on is enough for me

Reject

iTrader: (24)

they are 50 bucks if you know where to look

but i did some reading and it says that the closer it gets to the turbo the more you have to make a heat shield to not cook it

i'm going to put it about 2.5 feet from the turbo, that would be perfict for me

Boosted 99 TA

iTrader: (1)

id also like to know what perfer for a daily between open and closed loop..

Reject

iTrader: (24)

search over in the Tuning section, it's all a matter of preference

deadmanTA

iTrader: (7)

The instructions for my AEM says 36" downstream of the turbine wheel min and at atleast a 10 degree angle upwards to prevent condensation from staying on it.