2007 4.7 mpg - Page 2 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #16 of 34 Old 07-07-2011, 11:06 AM
hoaxci5
Registered User
1995 XJ Cherokee 
 
Join Date: Sep 2010
Location: Wilmington
Posts: 860
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/


Unknown - 1995 XJ - 4.5 RC lift, drop brackets, 33" MT's, SYE, Custom Bumpers/Rockrails
Rambo - 2007 XK Limited 5.7 - OME HD - Monroe Load Levelers (F150) - Flashpaq - RRO SuperSliders - 4XGuard all over - SOLD
hoaxci5 is offline  
Sponsored Links
Advertisement
 
post #17 of 34 Old 07-07-2011, 11:56 AM
CmmdrDan
Registered User
 
Join Date: Sep 2010
Posts: 3,175
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/
CmmdrDan is offline  
post #18 of 34 Old 07-07-2011, 12:12 PM
Commander2007
Registered User
2007 XK Commander 
 
Join Date: Jul 2011
Location: San Antonio
Posts: 11
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!
Commander2007 is offline  
post #19 of 34 Old 07-07-2011, 12:25 PM
hoaxci5
Registered User
1995 XJ Cherokee 
 
Join Date: Sep 2010
Location: Wilmington
Posts: 860
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.

Unknown - 1995 XJ - 4.5 RC lift, drop brackets, 33" MT's, SYE, Custom Bumpers/Rockrails
Rambo - 2007 XK Limited 5.7 - OME HD - Monroe Load Levelers (F150) - Flashpaq - RRO SuperSliders - 4XGuard all over - SOLD
hoaxci5 is offline  
post #20 of 34 Old 07-07-2011, 12:37 PM
Terminator2
Registered User
 
Join Date: May 2011
Location: Lecanto
Posts: 1,245
Quote:
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.
Terminator2 is offline  
post #21 of 34 Old 09-19-2013, 08:02 PM
Jmerique13
Registered User
2007 WK 
 
Join Date: Sep 2013
Location: Hickory
Posts: 5
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.

07 Grand Cherokee limited 4.7 flex fuel, 2 inch rough country, 265 nitto terra grapplers, black rubicon rims, westin bull bar, afe intake, dynomax exhaust, superchips flashpaq, aftermarket trailer hitch
Jmerique13 is offline  
post #22 of 34 Old 09-19-2013, 08:52 PM
JeepN4KC
Keep on Jeepin on........
 
JeepN4KC's Avatar
 
Join Date: Jul 2011
Location: Blue Springs
Posts: 6,942
^^^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?

~Mike~

Build Thread WK
Other Build Thread XJ
Sept '13/Jan '15/Jun '16 COTM
JeepN4KC is offline  
post #23 of 34 Old 09-20-2013, 06:11 AM
twistedlizard72
Registered User
2007 WK 
 
Join Date: Apr 2011
Location: Piņon Hills
Posts: 313
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.

Kevin K.
twistedlizard72 is offline  
post #24 of 34 Old 09-20-2013, 06:16 AM
JeepN4KC
Keep on Jeepin on........
 
JeepN4KC's Avatar
 
Join Date: Jul 2011
Location: Blue Springs
Posts: 6,942
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.

~Mike~

Build Thread WK
Other Build Thread XJ
Sept '13/Jan '15/Jun '16 COTM
JeepN4KC is offline  
post #25 of 34 Old 09-20-2013, 08:44 AM
Goldenknob
Registered User
2007 WK 
 
Join Date: Jun 2006
Location: Antlers, Ok
Posts: 1,067
Would a throttle body spacer really make any difference on the 4.7?

Which one do you guys use?
Goldenknob is offline  
post #26 of 34 Old 09-20-2013, 08:57 AM
Zlartibartfast
Registered User
2007 WK 
 
Join Date: Aug 2007
Location: Menchaca
Posts: 580
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)
Zlartibartfast is offline  
post #27 of 34 Old 09-20-2013, 09:03 AM
Goldenknob
Registered User
2007 WK 
 
Join Date: Jun 2006
Location: Antlers, Ok
Posts: 1,067
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?
Goldenknob is offline  
post #28 of 34 Old 09-20-2013, 10:28 AM
Zlartibartfast
Registered User
2007 WK 
 
Join Date: Aug 2007
Location: Menchaca
Posts: 580
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!
Zlartibartfast is offline  
post #29 of 34 Old 09-22-2013, 04:33 PM
Jmerique13
Registered User
2007 WK 
 
Join Date: Sep 2013
Location: Hickory
Posts: 5
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

07 Grand Cherokee limited 4.7 flex fuel, 2 inch rough country, 265 nitto terra grapplers, black rubicon rims, westin bull bar, afe intake, dynomax exhaust, superchips flashpaq, aftermarket trailer hitch
Jmerique13 is offline  
post #30 of 34 Old 09-22-2013, 05:20 PM
JeepN4KC
Keep on Jeepin on........
 
JeepN4KC's Avatar
 
Join Date: Jul 2011
Location: Blue Springs
Posts: 6,942
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.

~Mike~

Build Thread WK
Other Build Thread XJ
Sept '13/Jan '15/Jun '16 COTM
JeepN4KC is offline  
Reply

Tags
gas , mpg

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
2007 Comanche patter5 MJ Comanche Technical Forum 9 06-27-2011 01:19 AM
2007 wheels on xj? ZingerXJ1129 XJ Cherokee Technical Forum 2 12-24-2008 09:14 PM
2007 rim 1999sport XJ Cherokee Technical Forum 3 05-12-2008 12:20 PM
Plans for your XJ in 2007? Dannyboy18 XJ Cherokee Technical Forum 44 02-27-2007 07:08 AM
2007 XJ Calendar!! Red97XJ XJ Cherokee Technical Forum 5 12-30-2006 01:35 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome