alright i have read many many threads about going wide band. my question is...is it worth getting wideband without tuning? and without tuning does it make a difference? thanks?

 

You should get the wideband, in order to "see" what you are tuning.

 

The whole point of having a wideband O2 is so that you can tune. Without tuning, it would be a pretty light with useless numbers.

Does it make a difference without tuning? What do you mean? A wideband O2 is just a new O2 you install that provides you with wideband AFR readings (i.e. 12.0, 11.5, 11.0, etc.) instead of narrow band .02 voltages (i.e. .92, .94, .96). If you install a wideband O2, it won't do anything except show you your AFRs, so without tuning, it will just remind you how rich the factory tune is at WOT above 5200rpm. Even with tuning, it will just show you what your post-tuning AFRs are. The point is to use it to do your own tuning and make sure everything is always in safe and working order.

 

^There ya go

 

This is 4th gear run with Dynoflash, HKS drop in filter, stock boost and a Cat Delete (Deletion was after the Flash). The car made 255hp/263tq before the cat delete.

 

sorry, this is off-topic but why does your graph show the rpm spiking?

 

the spikes are meaningless, but the rpm pick up was done with "inductive clamp" which fits loose with our stock wires and driving the vehicle "floored" from 3000-7000rpm in 4th gear causes vibrations and all sorts of possiblities for the clamp to move around...