[Mark Leasure]

Originally Posted by asshanson

A point is almost 9% difference, I doubt your injectors have that much variance, but maybe that combined with airflow differences per cylinder I suppose it could happen.

Maybe the widebands are reading wrong, it might be easier to swap what cylinders the widebands are on to see if the readings follow the sensor.

Good luck this weekend!

Yeah its hard to believe it, swapping around the O2's and injectors will build confidance. Swap the most lean cylinder with most rich type of thing.

Originally Posted by goodhart

So is your plan to try to tune it with the downpipe wideband then use single cylinder widebands for fine tuning?

Boost by speed should be sweet!

You're correct, I'm using the DP sensor to tune with, and in the future cylinder trims can be adjusted with the individual cylinder sensors.

Originally Posted by turbotalon1g

Woot! Good luck this weekend.

I wish they had classes for us 4 cyl. guys.

I know! I'm just going to try to get some passes in, racing is scondary.

Originally Posted by Halon

Progress is good! I hear ya on the cam/crank signals, I've been battling them on my car for quite awhile. Signal overlap combined with noise on the line gets frustrating. Mines still just a VR sensor setup running in a 24-1 configuration, what's your new setup?

The new setup is a Kiggley 12 tooth wheel on the crank for engine position, it's a hall effect sensor. Then the OEM optical cam sensor for compression stroke. I verified that the signal looks great on an oscilloscope, very minimal noise present.