leftoverz28

I was wondering if anyone could give me a hand picking a wideband for my twin turbo 383 lt1. What im mainly confused about is whether or not there would be any advantage to a dual bank setup as opposed to a single sensor. Anyone been through this?
Thanks

Injuneer

You will probably get better results with this on the "Computer Diagnostics and Tuning" forum. I'll move your post there.

mzgp5x

I am using a DynoJet single wide band unit (approx $450) with a DPDT switch and an Autometer O2 sensor meter. App... (97ss 383 D1 Procharger MM6 72# Seimens Inj.)

I have the WB O2 sensor mounted in the left bank exhaust tube before the Y, but, I can compare Rt and Left engine control O2 sensors by compairison to the WB O2. The switch is mounted under the steering col so I can flip between Rt and Left Engine O2 sensor. I do like having the gage for monitor during rides, which I always do. I helps to see various driving conditions/ throttle changes and the afr results.

The DynoJet has full function for computer interface (USB), logging scans, and the analog O2 meter. I have mounted both the Auto meter and Dyno analog gages (2 1/6" dia) on the A_pillar for easy eye view during the ride.

I had real trouble flash programming for closed loop and closed loop WOT modes w/o the DynoJet WB O2 tool. I purchased the DynoJet WB before the dual units were on the market, so I have no experience with them.

Hope this helps you. B.

cusz28

last time i built a fuel injected twin turbo, i used two. I would ALWAYS recommend using two, especially on a turbo motor (the only way i got around this before is on an NA motor running tbi, other than that, even batch fire needs two to be accurate). just make sure to put the O2's AFTER the turbo or else the backpressure will scew your readings. just about any wideband will work, just make sure they're both the same.

leftoverz28

thanks
i was thinking of going with the fast dual wb
i had some experience with their engine management system in school and it seemed like a good product.