How to tune my vehicle?

[modelbuilder]

Was wondering how I can tune my vehicle to perform better off road.

I have the Superchips Jeep Flashpaq...

I have an 05 Grand Cherokee, AWD, Quadra Trac II, and a 4.7L V8


Out of the list below is there anything I should change to give me better off road performance. I already have increased HP and TQ with the flashpaq.

Here is a list of everything I can change.

# Transfer case gear calibration
# Fan control
# Spark advance set
# Tire pressure monitoring system threshold adjustment
# Adjust wide open throttle shift points, speed limiter and rev limiter
# Transmission settings optimized
# Real time idle up for accessories




.

 

[angusdevil]

With the 4.7... you're not going to have a lot of options

# Transfer case gear calibration
No idea. What T-Case do you have?
# Fan control
Electric fan? You can always add one that has adjustability.
# Spark advance set
Superchips or Diablo
# Tire pressure monitoring system threshold adjustment
I don't believe Chrysler has any adjustability for this. Dodge guys have been fighting this for quite a while.
# Adjust wide open throttle shift points, speed limiter and rev limiter
Superchips or Diablo
# Transmission settings optimized
Diablo
# Real time idle up for accessories
Not available for gassers

All of this is based off the Dodge's availability in the 4.7 It may be a bit different in the Jeep world.

 

[modelbuilder]

I should have said "tune" not "change".

Everything I said I can change I can adjust with the tuner.

# Transfer case gear calibration
# Fan control
# Spark advance set
# Tire pressure monitoring system threshold adjustment
# Adjust wide open throttle shift points, speed limiter and rev limiter
# Transmission settings optimized
# Real time idle up for accessories

I already adjusted my tire pressure system to account for low PSI when off road.

I can adjust the electric fan with the tuner....etc etc.

Just wanted to know how I should tune everything to get more performance off road.

 

[angusdevil]

Ha, don't feel bad, I read it wrong so.....

Yes, some of those would be great to tune! Do the TPMS, Tranny and idles for sure. WOT shift points aren't all that important unless you're racing. Spark advance is great but not necessary unless you are craving more power. As for fan control and transfer case adjustments, all depends on how much idling and slow crawling you do. If it's all in the Flashpaq, just make sure you bring it on the trail with you so you can change things when needed.

They are all good options to look into and while each have their uses at times, just have to know how to use each of them and when.