long tube header o2 delay suggestions

[harvboi05]

im getting all my ducks in a row before i install long tubes, upgrade to a 4" maf tube, and pulley down. just hoping for some advice to help make things easier on myself, being a DIY tuner.

what do people suggest i start with for primary o2 delay settings. ill be running some 1 7/8 ARH with 3" collectors and 3" all the way to the tails. id rather not have my closed loop control suck for a few months while i trial and error adjust everything. its bad enough im losing a good bit of resolution compared to the 3" pipe, so any help is much appreciated.

thanks in advance!

 

[01yellercobra]

I increased my transport delay 20% and the duty cycle 15%.

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[harvboi05]

thanks for the reply. ill try those settings out and go from there. what are symptoms they need further adjustment? hunting closed loop afrs?

bump for anyone else?

 

[warbird19]

If the 02 bung is in the collector i start by adding 30 percent. I also make the car wait to go closed loop for 60 seconds and turn the heaters up to at least 80 percent. I would also tell the ecu that the 02's are warm at 650 degrees.