friend got the lm1 wideband and we took it out tonight on my truck and at idle and cruising my a/f was 14.5 which is good but when i floor it it goes straight to 10.8 which is rich and on spray it goes to 11.4 to 11.6 need opinions on what truck should be doing on spray and motor thanks.

 

i shoot for 12.5 na an 11.5 on spray. not critical that you be exact with those numbers, just kind of close. keep it under 12.0 for sure with the spray.

i dont know how the predator works but normaly you want to look at your part throttle ltrims and dial those into slightly negative numbers before you work on WOT fuel tuning.

 

yea that was the plan i just got my new 4 inch intake system today and i was expecting something to go wrong hahaha but i am going to mess with my fuel trim and go down a little on pressure for some better times on motor hopefully i can't wait to get my nitro dave kit and spray that 150 shot