Wheres the best place to mount the WB bung in the exhaust ?? Im not running a turbo so thats not an issue..

Y-pipe==Test pipe==resonator==muffler

I was thinking in the test pipe by the oxygen sensor

-matt

 

To datalog, you guys could get the XD-1 with an LM-1 (instead of the LC-1), plus an auxbox if oyu want to pretty much a standalone datalogging system with 6 total channels.

Innovat is so far and ahead of the competiton that it's not even close. As an example (kind of OT), with their new firmware released a couple of days ago for the Auxbox, the auxbox MAP sensor calibrates itself to he ambient baromoteric pressure, and sets it into it's memeory as "0 boost", every time you start your car; this is in place of just assuming an ambient press of 1 bar. This is especially important to our friends in places like Albequerque, where the pressure is DEFINITELY not 1 bar. This way you can get as good a boost reading as possible.

 

forgot to mention the most important thing...

This is the only product on the market that can recalbirate the sensor in open air (where theoxygen content is known precisely) for continuous accurate measurements. A resistor calibration is simply not enough, not for anything above 100 hours of usage (AND assuming you are not too rich).

This is described in the bosch sensor specs. At room temperature/ideal conditions, the sensor 'walks' about +/- 0.3 after, i believe, 100 hours of use. After 500 hours of use, it walks about +/- 0.6. This shows why any serious AFR measurements simply require the use of a calibrating controlller.

 

Can someone tell me what size the XD-1 is ??? im trying to go a custom Pillar on my steering column

-matt

 

52 mm

 

thank you

-matt

 

I still havent heard of a good place to mount the bung ?? In the test pipe, after the Y-pipe a good place or should it go in the Y-pipe right after the two banks meet ?? I dont think its much of a problem where its mounted...in the test pipe may be the best place right ??


-matt

 

as long as it's before any cats that you may have. If you don't have any cats, then it's preferred to mount it as close to the engine as possible without overheating the sensor (must be under 900degF for long sesnor life) in order to 1) minimize errors from exhaust leaks that may happen at flanges, and 2) to make the readings as real time as possible. Depending on gear, tail pipe reading can be lagging by as much as 300 rpm, just because it takes that long for the gases to travel to the point of measurement (i.e. the bung)

 

Sharif how do your gauges read on W.O.T. there are read the same A/F on both sides? just wondering... and what side do you recomend to put the sensor if you have only one sensor like many here?

Thanks

 

Both banks are very close at WOT..and at cruise. With such a high sampling rate, there will be small differences between the banks, at any given moment, but if I was to plot the two sides, they are virtually identical.

No preference on the side...in terms of install.

Personally, I like to use the driver side, since it makes running the wires through the driver side firewall a little bit easier.

 

Well at WOT, my EGT temps are about 1350 at the merge of the Y-pipe..I assume I should move it back a bit towards the rear of the car,?? maybe in the test pipe, which Im using instead of a cat...

Will it be effected if I have it installed right by the O2 sensor I have in the test pipe ??

-matt

 

bump to the top

 

what do you guys think ?

 

love it

 

They are 1350def at the merge of the y-pipe? That's insanely high isn't it? But htat's beside the point.

Let me clarify what hte temperatures should be. Here is a copy/paste of the LM-1 section regarding the sensor temps:

"The maximum temperature of the sensor at the bung (the sensor hexagon) should not exceed 500 oC or 900 oF. If these temperatures are exceeded in your application you should either install a copper heat sink (instructions below) or the Innovate Motorsports Heat-Sink Bung extender (HBX-1). The bung extender is recommended for situations where airflow is restricted or the encountered heat is higher than a heat sink can handle."

So it's not hte gas temp but the temp at the bung that matters (the body of the sensor).

 

Does the sensor need to be mounted vertically ?? A few of my buddies said that the sensor needs to be mounted vertically to lesson the amount of moisture to collect on the sensor

Does it matter if its mounted horizontally ??

-matt

 

It should be mounted 10 degrees OR MORE above horizontal. The absolute best position is for it to be vertical (as in the tail of the sensor pointing up, at the TOP of the pipe). The absolute worst position is 180 degrees from the previouos one... i.e. vertical position at hte bottome of the pipe.

 

Vertical is not necessary.....a small angle upwards is fine.

 

For some reason ever since I had mine it reads E-2 when i first start it before the heating cycle. E-2 in the manual is a bad sensor if I remember correctly, but never did anything about it because it always read accurately. Any ideas?