Individual cylinder tuning. Change my mind?

How's it going lads, what we saying in regards to individual cylinder lambda tuning?

Last car made a little over over 800 at the wheels and I've been using EGT. It's alright but not amazing and not that informative fueling wise unless its large swings so thinking this time with this new build it might be worth stretching out and seeing if it's worth it going with the lambda or perhaps not and not really required?

As it stands the s54 build is at ECU choice and wiring. I've made up a custom intake but have no way of measuring air flow (reason for this topic) and curious to see if it's going to work or if I've created a major imbalance.

Car is an E46 fully built drift car and debating another Haltech R3 or opt for a R5. Is it worth the spend for 6 widebands or stick with the single? Not looking to rotate the earth with power but being on the upper edge for a season of drifting I want it reliable and have as much info at my disposal.

With the wideband in each cylinder do people leave them in full time or remove them after use?

Appreciate any information!

Hey Marty,

In one of the webinars Andre made previously, he installed individual Lambda sensors and balanced the fueling between all cylinders(the lambda difference between cylinders was quite noticeable ). And there was no power improvement seen from such an approach. However, it will surely reduce the cylinder-to-cylinder variation, knowing that you adjusted the fueling according to the available air to each cylinder. If you do go for individual lambda sensors, make sure you account for the backpressure effect on the sensor readings.

As I mostly use MoTeC, if I had the budget for 4 LTC-D I would definitely dish it out. But that is mostly because I'm data-driven and like to fiddle with things. So on most of the V8 setups I tuned i go with dual sensors (one per bank). And I always find that I have to correct 2-5% on the leaner bank usually.

In regards to how I use EGTs, they are to me a reference for cylinder ignition timing rather than fueling.

And with no way of measuring air flow (assuming MAF sensor), i think you will still be able to fit a MAP sensor to have a way of calculating air flow?