Hi. This is my first post out of the VE-forums :)

I was just wondering...I have a VE bring triggered by an MSS, and am planning to try and tune it with a S-AFC II. I am not planning any dynotime or anything yet, as I dont have a lot of mods.. BUT, with the help of a windeband, I should be able to tune my AFR pretty good, right?

Now, here comes the real question. I am running the stock VE-manifold/header right now, and of course it has only one hole for a lambda. If I take the stock lambda out, my car will still run, but differently. If I tune with the stock lambda out, I'm guessing the tune will be "faulty" when the car is running with the lambda again?
If I use a tail-sniffer, on a car with the stock cat, will the numbers from the wideband be anything to go by?

I have a Fuji on the way. This might have another hole, so I can run a wideband at the same time, but I honestly dont know.
What would you guys suggest as the best way to tune a car with a cat and only one hole for a o2-sensor?

I searched around but I couldnt find any definitive answers. Maybe there isn't one? I dont know. I hope I wont get flamed to death for this. Thanks in advance :)

Many widebands have a seperate narrow band output that you can feed into the ecu.

C

Oh. Yeah, actually I've heard of that before, but so far I've not found any brands that has this. Can you point me in a direction?

http://www.innovatemotorsports.com/

And Innovate has excellent logging software.

C