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Unread 07-07-2011, 12:06 PM   #16
hoaxci5
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I'd call 15mpg pretty typical with the Jeep.. for whatever reason Jeeps get crappier gas mileage than fullsize trucks go figure..

http://www.superchips.com/

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Unread 07-07-2011, 12:56 PM   #17
CmmdrDan
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Quote:
Originally Posted by hoaxci5 View Post
I'd call 15mpg pretty typical with the Jeep.. for whatever reason Jeeps cooler than fullsize trucks go figure..

http://www.superchips.com/
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Unread 07-07-2011, 01:12 PM   #18
Commander2007
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Do superchips really work to improve hwy mpg? I just bought a 07 Jeep Commander and would consider that a good investment. Are there threads on here that show members mpg improvements? thanks!
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Unread 07-07-2011, 01:25 PM   #19
hoaxci5
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I didn't really gain any noticeable amount of mpgs with my superchips on my Hemi. It's a world of difference better driving/shifting though.
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Unread 07-07-2011, 01:37 PM   #20
Terminator2
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Originally Posted by jager00 View Post
Superchips... I went from 10mpg to 16mpg
Speedo recalibrate helped there or you must have changed your driving style some. There is no way you nearly doubled your gas mileage just by running a canned tune (unless that canned tune has you running dangerously lean). Trust me I do custom tunes for a living and I have had superchips canned tunes in the past in several of my vehicles and not one had any noticeable difference in gas mileage (within 1 MPG of stock). Stock tunes are generally geared towards maximum fuel mileage on 87-89 octane gas and emissions. Aftermarket tunes are generally geared more towards performance.
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Unread 09-19-2013, 09:02 PM   #21
Jmerique13
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Improve mpgs and power

I already have exhaust and intake done to my 4.7 and with my lift and tires im averaging 12 mpgs in the city. No bueno. Is there any chips or programers that will improve all over performance and mpg's. ive looked at stage 2 jet chips but ive seen people complaining about those. Cananybody help me out? Much appreciated.
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Unread 09-19-2013, 09:52 PM   #22
JeepN4KC
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^^^Take a look at Superchip and Diablo tuners for the WK.

12 mpg city though? Are you throttle heavy with your driving style? What are your rpms usually running?
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Unread 09-20-2013, 07:11 AM   #23
twistedlizard72
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I didn't have too much noticeable MPG benefits with my Superchips. It may have helped out though with the Superlift. I average (mixed city/hwy) 15 mpg with 285/70's. I only lost 1 maybe 2 mpg with the 4 inches of elevation.
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Unread 09-20-2013, 07:16 AM   #24
JeepN4KC
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Quote:
Originally Posted by twistedlizard72 View Post
I didn't have too much noticeable MPG benefits with my Superchips. It may have helped out though with the Superlift. I average (mixed city/hwy) 15 mpg with 285/70's. I only lost 1 maybe 2 mpg with the 4 inches of elevation.
Your fuel mileage isn't effected by the amount of lift you have.
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My Build Thread WK
My Other Build Thread XJ
'01 XJ with some stuff
Sept 2013 Cherokee of the Month
'07 WK with some other stuff
~RED WK CLUB #7~
'11 KK with mostly stock stuff
'06WK our first Jeep with stock stuff - totalled and gone
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Unread 09-20-2013, 09:44 AM   #25
Goldenknob
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Would a throttle body spacer really make any difference on the 4.7?

Which one do you guys use?
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Unread 09-20-2013, 09:57 AM   #26
Zlartibartfast
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There is no proof that TB spacers do ANYTHING to affect MPG's. If you already have a good TB, the spacer can't do anything to help. Get better plugs + wires instead.

(Ok I'm a CRD driver now but my prev Jeep was a 4.0 L6 ZJ w/Fastman TB, Banks header, custom 2.5" exhaust w/performance CAT and muffler + Hypertech programmer = 21 MPG avg)
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Unread 09-20-2013, 10:03 AM   #27
Goldenknob
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The better plugs wires thing really wouldn't apply to this engine. But thanks for the TB spacer input.

How did your fastman TB work out for you? was it a noticeable improvement?
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Unread 09-20-2013, 11:28 AM   #28
Zlartibartfast
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it was a HUGE improvement - there was lots of room for improvement with that TB. However, the real improvement was the combination of upgrades to intake AND exhaust. Made that L6 run like a V8!
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Unread 09-22-2013, 05:33 PM   #29
Jmerique13
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Quote:
Originally Posted by JeepN4KC View Post
^^^Take a look at Superchip and Diablo tuners for the WK.

12 mpg city though? Are you throttle heavy with your driving style? What are your rpms usually running?
I usually don't go above 2500 rpms. And my commute to work has a lot of stop and go traffic
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Unread 09-22-2013, 06:20 PM   #30
JeepN4KC
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Quote:
Originally Posted by Jmerique13 View Post

I usually don't go above 2500 rpms. And my commute to work has a lot of stop and go traffic
Ahah - stop n go kills your mileage.
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My Build Thread WK
My Other Build Thread XJ
'01 XJ with some stuff
Sept 2013 Cherokee of the Month
'07 WK with some other stuff
~RED WK CLUB #7~
'11 KK with mostly stock stuff
'06WK our first Jeep with stock stuff - totalled and gone
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