Which is going to get me better MPG? ProCal or the Superchips Flashpaq?
My MPG took a hit with my recent lift and new tires.

Procal is half the price of the Superchips. Is it worth the extra money?

My stats:
2007 Sahara JKU
Daily Driver
Automatic 3.8L, 4x4
Lift with 35's
4.10 gears

I thought the humming sound was my new 35" Nitto's, but it turns out its just money being sucked outta my pocket with this MPG

 

Get a Prius?
Seriously,don't know about ProCal, Superchips didn't hurt my mileage, but it didn't help it any either. Even on MileageXS it just doesn't do much. My roof rack east mine up bad now. Regearing would probably do you better. BUT, if you haven't recalibrated for tires, your mileage calculations might not be correct. your odometer is turning slower. Thus you are traveling further than you think.

 

PROCAL won't change you MPG but will fix your MPH and odometer making you MPG accurate. I got a little bit better gas mileage withtm the superchip.

 

Option 3... Return it back to stock. You will get all your MPGs back. It's no secret that lift and larger tires will kill fuel economy, in addition to that there isn't a whole lot you can do to change that. Regearing is your best option to get some, if any MPGs back.

 

My Jeep isnt lifted but dealer put 33s on it and really nice 17 inch rims but they failed to callibrate it or callibrated it incorrectly. I was burning through fuel. I ordered the Procal and did as instructed - my actual diameter for tire callibration is 31.25 - go figure - and now my Jeep acts as if it owns the road. I'm currently monitoring gas usage but thus far after 30 plus miles the gas needle hasnt budged from Full - the Procal is pure gold in my book!

 

Im getting 16 to 17 mpg since using procal - it was around 14 before - one time it calculated to be 12 (before procal) but it was incredibly windy during that time.

 

To the best of my knowledge the pro cal does not change anything with the way the engine will run like the superchips does. They both hav nice features but f u really want to get any mpg back I would go with the superchips. Jus a thought but u can use less gas with a more powerful engine than u do with a engine that is struggling to turn the tires.

 

JP: Im not getting better gas mileage as 17 mpg is the average for my vehicle, according to Jeep, but that cant be achieved if ECU isnt calibrated correctly. My jeep wasnt lifted so perhaps procal isnt the best device for lifted jeeps?

 

Iv'e owned a Accu Pro, Pro-Cal, Unichip, and I now have a Superchips Flashpaq.

Accu Pro = For what it does (Correct the tire size) it is NOT worth the cash they want for it.

Pro-Cal = Did nothing for engine performance. But did help the tire size issue, and the Idle Up, TPMS features are nice. I used the steering wheel aliment feature once.

Unichip = Total Junk! Did NOTHING for performance or millage. Died before one year of ownership. Got all my money back and got a Flashpaq and cash to spare.

Superchips Flashpaq = 100% Awesome!

• Gains of 18 RWHP and 22 lb-ft torque for JK 3.8L; 21 HP and 18 HP and 26 lb-ft torque for Hemi-equipped Commander and Grand Cherokees.
• Low-throttle response crawling tune for Rock Crawling
• 3 Throttle Pedal Sensitivity Tunes for daily driving (Provides the same features as the Sprint Booster)
• 4-HI locking axle control
• Transfer case gear change correction (4WD-HI 5 – 10, 4WD-LO 1 – 15)
• Real-time idle control for accessories and ability to change your idle point.
• Backlit Display with Brightness controls.
• Free USB updates
• Will tune JK’s with Hemi Swaps and allow VIN programming of the HEMI ECU
• Tire Pressure Monitoring System threshold adjustment or full disable of TPMS
• 50-state legal emissions: CARB E.O. D-330-09
• Adjustable shift points, firmness, speed and engine rev limiter
• Includes all these tunes. 89 performance, 91 performance, 93 performance, Towing Tune, Fuel Economy Tune; all work in 4WD-HI and 4WD-LO
• Tire size (22.5” – 42”)and axle gear (2.00 – 10.00) adjustment for electronic speedometer correction
• Control electronic fan temperatures between 186 and 226 degrees
• Real-time vehicle sensor display and data logging (Check ignition timing and fluid temperatures)
• MDS Disable for Grand Cherokee and Commander (The MDS transitions the engine from eight cylinders to four)
• Works with aftermarket air intakes and filters, cat-back exhaust systems and throttle body spacers
• Read, display, & clear DTCs

Fits These Vehicles
• 99-01 Jeep Cherokee (XJ)
• 06-09 Jeep Commander (XK)
• 99-04 Jeep Grand Cherokee (WJ)
• 05-08 Jeep Grand Cherokee (WK)
• 98-06 Jeep Wrangler (TJ)
• 07-10 Jeep Wrangler 2-Door (JK)
• 04-06 Jeep Wrangler Unlimited (TJ)
• 07-10 Jeep Wrangler Unlimited 4-Door (JK)

Fits These Engines
• Jeep 3.8L V-6 Gasoline
• Jeep 4.0L I-6 Gasoline
• Jeep 4.7L V-8 Gasoline
• Jeep 5.7L V-8 Gasoline

Real Dyno Numbers on a 09 Rubicon with 35” tires and GY MTR Kevlars. 94 Octane in the tank.

87 Octane Tune
RWHP= 120
RW torque= 143

93 Octane Tune
RWHP= 127
RW torque= 153

 

I must have just gotten lucky - that Procal has my Jeep thinking its a race car - im not climbing rocks or anything - but its been night and day for me - perhaps its because I did things a bit differently in my computations and inputs? I dunno.