Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 -

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 05-05-2012, 08:33 AM
five.7 Hemi's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: May 2012
Location: Spring, TX
Posts: 504
Thanks: 1
Thanked 5 Times in 5 Posts
Rep Power: 1361
five.7 Hemi is on a distinguished road
Garage
Question about HP

Anyone know why the Ram trucks have 390hp and 407 lb/ft torque and the Jeep is only 360 and 390?
Anyone know if the cam is different, compression.....etc.

__________________

__________________
Reply With Quote
  #2  
Old 05-05-2012, 05:05 PM
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Dec 2011
Posts: 243
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 63833
dizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond repute
Re: Question about HP

I called Chrysler specifically with this question, they called me back two days later and said the engines are identical, it was strictly different programming.
__________________

__________________
Reply With Quote
  #3  
Old 05-05-2012, 05:07 PM
five.7 Hemi's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: May 2012
Location: Spring, TX
Posts: 504
Thanks: 1
Thanked 5 Times in 5 Posts
Rep Power: 1361
five.7 Hemi is on a distinguished road
Garage
Re: Question about HP

Quote:
Originally Posted by dizz1979 View Post
I called Chrysler specifically with this question, they called me back two days later and said the engines are identical, it was strictly different programming.
Huh, thanks. That's good to know. So we could potentially gain 30hp with some better software.
__________________
Reply With Quote
  #4  
Old 05-05-2012, 06:39 PM
padgett's Avatar
Premium Member
 
Join Date: Feb 2012
Location: Orlando
Posts: 1,527
Thanks: 0
Thanked 23 Times in 20 Posts
Rep Power: 80130
padgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond reputepadgett has a reputation beyond repute
Re: Question about HP

Suspect the programming is similar, is more marketting. Is the fuel requirement different ?
Reply With Quote
  #5  
Old 05-05-2012, 06:41 PM
Member
My Jeep: 2012 5.7L WK2
 
Join Date: Dec 2011
Posts: 243
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 63833
dizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond reputedizz1979 has a reputation beyond repute
Re: Question about HP

Quote:
Originally Posted by five.7 Hemi View Post
Huh, thanks. That's good to know. So we could potentially gain 30hp with some better software.

That is why I can wait for one of the tuners to up the ante. I believe they are purposely keeping the hp lower so there is a much bigger gap between the 5.7 and the 6.4 SRT8.
__________________
Reply With Quote
  #6  
Old 05-05-2012, 06:57 PM
Member
My Jeep: 2012 3.6L WK2
 
Join Date: Nov 2011
Posts: 337
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 1531
Tybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond reputeTybalt39 has a reputation beyond repute
Re: Question about HP

Is it the same transmission/drive-train?
__________________
2012 Overland V6
Deep Cherry Red w/Saddle & Black
OEM Crossbars
Thule Criterium Bike Rack
Reply With Quote
  #7  
Old 05-05-2012, 08:34 PM
Raptor's Avatar
Member
 
Join Date: Sep 2011
Posts: 517
Thanks: 1
Thanked 11 Times in 11 Posts
Rep Power: 2340
Raptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond reputeRaptor has a reputation beyond repute
Re: Question about HP

I think the 5.7's found in Mopar trucks have better flowing intake/exhaust systems that help the engines breath better for more power.
Tuning is also a factor, and an aftermarket programmer would probably open up the 5.7 Hemis found in our Grand Cherokees. Still waiting on that!
__________________
Reply With Quote
  #8  
Old 05-05-2012, 08:41 PM
FlyinRyan's Avatar
Senior Member
My Jeep: 2002 4.7L WJ
 
Join Date: Jul 2009
Location: Fort Myers, Florida
Posts: 2,801
Thanks: 33
Thanked 31 Times in 30 Posts
Rep Power: 88611
FlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond reputeFlyinRyan has a reputation beyond repute
Send a message via AIM to FlyinRyan
Re: Question about HP

tuning/exhaust.
__________________
Due to my workload, please do not PM me as I do not regularly check my PMs. Thank you :)
Reply With Quote
  #9  
Old 05-07-2012, 06:28 PM
five.7 Hemi's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: May 2012
Location: Spring, TX
Posts: 504
Thanks: 1
Thanked 5 Times in 5 Posts
Rep Power: 1361
five.7 Hemi is on a distinguished road
Garage
Re: Question about HP

I want to do an exhaust but what I really want to know is weather the SRT exhaust manifolds will work on the 5.7? If they will.....then will an SRT exhaust system work also?
It would be better if someone made headers for the 5.7.
__________________
Reply With Quote
  #10  
Old 05-07-2012, 09:26 PM
Escape's Avatar
Senior Member
 
Join Date: Jul 2009
Location: Michigan
Posts: 1,911
Thanks: 0
Thanked 26 Times in 25 Posts
Rep Power: 113219
Escape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond reputeEscape has a reputation beyond repute
Re: Question about HP

Order a set of exhaust manifold gaskets for both the 5.7 and 6.4. If they match up give it a go. If not return the parts.
__________________
[SIGPIC][/SIGPIC]
Forged, Stroked, Blown, Bottle Fed & More
Reply With Quote
  #11  
Old 05-08-2012, 07:53 AM
five.7 Hemi's Avatar
Member
My Jeep: 2012 5.7L WK2
 
Join Date: May 2012
Location: Spring, TX
Posts: 504
Thanks: 1
Thanked 5 Times in 5 Posts
Rep Power: 1361
five.7 Hemi is on a distinguished road
Garage
Re: Question about HP

Quote:
Originally Posted by Escape View Post
Order a set of exhaust manifold gaskets for both the 5.7 and 6.4. If they match up give it a go. If not return the parts.
Yeah, it's just a lot of work to find out if it will work or not. Was hoping some one would know. I contacted a company called Bouchillon Performance Engineering last night. They told me the exhaust ports aren't even close to the same.

Now what? The aftermarket sure does move slow on Jeep products.

http://bouchillonperformance.com/
__________________
Reply With Quote
  #12  
Old 05-09-2012, 06:35 PM
6t6gto's Avatar
Member
My Jeep: 2011 5.7L WK2
 
Join Date: Nov 2010
Location: SE lower Michigan
Posts: 54
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1438
6t6gto is on a distinguished road
Re: Question about HP

I think the Rams have a dual-runner intake........JB.
__________________

__________________
2011 Limited
2009 Challenger R/T Classic
2012 Charger R/T Max.
1964 GTO
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Trailer Question & 730N Question oz1302 Grand Cherokee - WK2 - 3 11-22-2011 02:44 AM
stereo question, subs question, please help! jeepinhard Audio, Video, Navigation & Electronic Modifications 14 04-13-2011 07:00 AM
Rim question / tinted tail light question burt0n05 Grand Cherokee - WK 12 02-08-2010 12:36 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:00 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community