Sean4.0 Posted February 24, 2021 Share Posted February 24, 2021 Hello brains trust, I’m new to the Barra game being a long time V8 guy and need to know if what I want is possible and how to choose and explain it to a tuner. (sorry for the long post, but I will try to explain my position) I have just purchased a manual, 2011 FG XR6t ute. The guy I bought it off said it was stock but he put a big exhaust on it. My plan is to buy and install a cold air intake, battery relocation and upgraded intercooler just before I drop it off for tuning. CURRENT ISSUES: 1. No engine braking. When down shifting I get no engine braking. (The revs increase but road speed stays about the same). Having read this forum I understand that L/100 should read 0.0 when on deceleration but I get around 4-5L/100 depending on RPM. 2. Backfire on deceleration. When downshifting there is noticeable burble that increases into loud backfiring through the exhaust. This goes away if I add small throttle input. Are these two issues connected? Are they related to adding a large exhaust (4” dump, high flow cat, mid muffler delete and one rear muffler) to a standard tune? WHAT I WANT: 1. The above issues fixed. 2. Performance tune to suit the intake/intercooler (I know… fuel pump) additions. 3. Is there an ability to have the standard Launch Assist for take off WITH added Flat Shifting capability? 4. Valet - Low boost setting via switch (I understand this is possible and cheaper than multiple tune options via cruise control buttons) How does the switch wire in so I can save the tuner time doing it myself. 5. I would like to purchase PCMtec to play with launch and traction control settings. Will Enthusiast or Professional be able to access these settings and will a tuner be willing to leave their tune unlocked so I can adjust non air/fuel related parameters? Thanks in advance, Sean Quote Link to comment Share on other sites More sharing options...
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