Will the JK ever get more power? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > JK Wrangler Technical Forum > Will the JK ever get more power?

Bushed Sleeves & Poly Bushings!All our Different Weld Washers!Panhard Parts & Kits from Ruffstuff!

Reply
Unread 11-12-2006, 10:19 AM   #1
magnum629
Registered User
2005 TJ Wrangler 
 
Join Date: Jan 2006
Location: middletown NJ
Posts: 819
Will the JK ever get more power?

Does anyone no if theres any plans for more power down the road? Hemi, 4.7 v8, other v6s ? DMX allways loves to put some power in there cars and trucks so why not the jeep? Going with big lifts and big tires we can allways use some more power

__________________
khaki 2005 TJ 6 speed dana 30/35 4.10 gears 2 inch skyjacker BB lift 1 inch body lift 33 inch kumho mud TAs 15x8 mickey thom classic 2s wheels flowmaster 40 rear tube bumper
magnum629 is offline   Reply With Quote
Unread 11-12-2006, 12:13 PM   #2
SecondTJ
Registered User
2000 TJ Wrangler 
 
Join Date: Sep 2006
Location: Illinois
Posts: 5,321
Hemi NO!!!
4.7 PROBABLY NOT

the new 4.0 v6 is the only possibilty.
__________________
'00 Sport. 5-speed, Detroit TrueTrac Dana 44 rear, Detroit TrueTrac front, 4.10's, 2" RE BB, OME shocks, 31" BFG MT, JKS Quicker Disco's, Borla

'99 Z28 M6, some goodies
'94 'Vette, A4 all stock
SecondTJ is offline   Reply With Quote
Unread 11-12-2006, 01:21 PM   #3
Conundrum
Registered User
 
Join Date: Jul 2005
Location: Western Maryland
Posts: 678
New 4.0L V-6? Something like what they put in Ford Rangers?
__________________
Matt
2001 Jeep Wrangler Sport 4.0L - Amber Fire Pearl Coat
1981 DeLorean DMC-12 VIN: 2953
Conundrum is offline   Reply With Quote
Unread 11-12-2006, 01:42 PM   #4
tolh13
Registered User
 
Join Date: Sep 2006
Location: lake worth fl
Posts: 82
Quote:
Originally Posted by conundrum1984
New 4.0L V-6? Something like what they put in Ford Rangers?
yea but they will put a jeep sticker on instead.
__________________
2007 4 dr 6 sp Sahara
magna flow exhaust,airaid intake
2006 Saab 9-3 turbo
1996 Harley (bad boy)
1973 WV thing
mark
tolh13 is offline   Reply With Quote
Unread 11-12-2006, 03:10 PM   #5
PLAN D
Registered User
 
Join Date: Nov 2006
Location: DENVER,CO.
Posts: 176
Why probably not on the 4.7L? The 235/305 would be nice so would the 3.0CRD, but that horse has been whipped.
PLAN D is offline   Reply With Quote
Unread 11-12-2006, 03:29 PM   #6
Scootr
Registered User
2007 JK Wrangler 
 
Join Date: Aug 2003
Location: Cuyahoga Falls,OH
Posts: 1,177
Quote:
Originally Posted by conundrum1984
New 4.0L V-6? Something like what they put in Ford Rangers?

Yeah but the DC 4.0 V6 will have a bunch more ponies...265 to be exact!
__________________
[B]Lead, Follow or get outta the way![/B]

[B] 2007 JK "X" 2dr [COLOR="DarkGreen"]Jeep Green[/COLOR],auto, 4.10's, 6 disc Infinity system with sub, 32's w/Pro Comp Xtreme Alloy Series 8179 wheels, Smittybilt SRC side bars,Sirius 1 unit, Magellan Maestro 3100 GPS . Former Jeeps...02 and 05 TJ Sports
[COLOR="Red"]SEMPER FI ![/COLOR]
[/B]
Scootr is offline   Reply With Quote
Unread 11-12-2006, 07:21 PM   #7
SecondTJ
Registered User
2000 TJ Wrangler 
 
Join Date: Sep 2006
Location: Illinois
Posts: 5,321
Quote:
Originally Posted by conundrum1984
New 4.0L V-6? Something like what they put in Ford Rangers?
Ford isnt even part of DCX..

Quote:
Originally Posted by PLAN D
Why probably not on the 4.7L? The 235/305 would be nice so would the 3.0CRD, but that horse has been whipped.
way too much needs to be done for the 4.7
__________________
'00 Sport. 5-speed, Detroit TrueTrac Dana 44 rear, Detroit TrueTrac front, 4.10's, 2" RE BB, OME shocks, 31" BFG MT, JKS Quicker Disco's, Borla

'99 Z28 M6, some goodies
'94 'Vette, A4 all stock
SecondTJ is offline   Reply With Quote
Unread 11-12-2006, 07:38 PM   #8
tolh13
Registered User
 
Join Date: Sep 2006
Location: lake worth fl
Posts: 82
[QUOTE=SecondTJ] Ford isnt even part of DCX..



Thats why we need a big jeep sticker to hide the ford one!
__________________
2007 4 dr 6 sp Sahara
magna flow exhaust,airaid intake
2006 Saab 9-3 turbo
1996 Harley (bad boy)
1973 WV thing
mark
tolh13 is offline   Reply With Quote
Unread 11-13-2006, 08:28 AM   #9
03jeeper78
Registered User
 
Join Date: Apr 2005
Location: Appleton, WI
Posts: 1,166
Only rumors, however, based on conversations with various engineers at Camp Jeep, I haven't given up hope for a diesel. Although, we're talking at least 2-3 years down the road for that.
__________________
'03 Bright Silver Metallic TJ Sport
BSMCCEP Club Member #45
Stock: 4.0L I6:5-speed:3.07 gears:D35 with Trac-Loc:15x7 Ecco wheels:Dual Top Group
Mods: 30x9.5 BFG A-T T/A KO's:JKS Quicker disconnects:Rock-It Man rocker guards:Jeep Medic oil pan/tranny skid:Kilby steering skid:Warn D30 diff guard:C4x4 D35 diff guard:Rusty's radiator guard:Skid Row LCA skids:SilverStar headlights and fogs:Hidden Hitch class III receiver:Old Realistic 40ch CB:2' Firestik II:Arizona Rocky Road tailgate antenna mount
Next : Jeeperman rear bumper

'06 Candy Orange Honda Shadow Spirit 750
03jeeper78 is offline   Reply With Quote
Unread 11-13-2006, 08:31 AM   #10
BlaineWasHere
BecauseRacecar
 
BlaineWasHere's Avatar
 
Join Date: Nov 2004
Location: NorCal
Posts: 13,326
Quote:
Originally Posted by SecondTJ



way too much needs to be done for the 4.7

Really what needs to be done? You seem to know it all.
__________________
2013 FR-S
BlaineWasHere is offline   Reply With Quote
Unread 11-13-2006, 06:55 PM   #11
SecondTJ
Registered User
2000 TJ Wrangler 
 
Join Date: Sep 2006
Location: Illinois
Posts: 5,321
Quote:
Originally Posted by BlaineWasHere
Really what needs to be done? You seem to know it all.
here.

Quote:
Originally Posted by Agent 000
Allright, lets do some simple comparisons here on the engines. The good old I-6 4.0L was a great design for an engine. Simple, OHV setup, very durable, easy to repair in the feild as it was mechanically very uncomplicated.

The new 3.8L V-6 is also a great design for an engine, Simple, OHV setup, very durable, easy to repair in the field as it too is rather mechanically uncomplicated.

The 4.0L could not be upgraded to pass 2007 Federal Emmissions Standards, and rather than spending millions of dollars to develop a new inline engine to replace it, Daimler Chrysler decided to use an existing engine that they were already producing, the 3.8L V-6.

You may ask, "Why didn't they just use the 3.7L V-6 from the Liberty/Grand Cherokee/Commander/Dakota?" (we asked that question as well during the Jeep Technologies Class we have to attend for our sales training). There was a good answer, the 3.7L is a great engine, but it is an OHC design engine, and not well suited for the new JK.

An OHV V-6 Engine is really easy to maintain, any backyard mechanic can tune one quite easily (much like the I-6 OHV Engine). The OHC V-6 Engine, on the other hand, requires a lot more work and diagnostic tools to maintain, and is rather difficult to maintain in the field.

The OHV 3.8L V-6 uses a distributorless ignition system, much like the system used on the I-6 4.0L Engine; The OHC 3.7L V-6 uses a on the plug coil pack ignition, requiring more computer control for the ignition firing cycle.

Of course, offroad one does not want to have to carry diagnostic computer equipment to fix their Jeep in the event of a breakdown, that's why we liked the old I-6 4.0L Engine. The V-6 3.8L Engine also does not need to have a lot of diagnostic equipment to troubleshoot...the V-6 3.7L Engine does.

Oh, BTW, the Minivan's are getting a new engine next year, to be shared with the Pacifica...one engine, five platforms, makes good business sense to me.
I have also read that the 3.7 was too wide, and the 3.7 is based off the 4.7, so that would make it a bit of fitment problem. Also, to get it and have th JK meet crash standards and emissions. The 4.7 uses the same iginition system, has similar electronics
__________________
'00 Sport. 5-speed, Detroit TrueTrac Dana 44 rear, Detroit TrueTrac front, 4.10's, 2" RE BB, OME shocks, 31" BFG MT, JKS Quicker Disco's, Borla

'99 Z28 M6, some goodies
'94 'Vette, A4 all stock
SecondTJ is offline   Reply With Quote
Unread 11-13-2006, 11:11 PM   #12
BlaineWasHere
BecauseRacecar
 
BlaineWasHere's Avatar
 
Join Date: Nov 2004
Location: NorCal
Posts: 13,326
OK I guess that does it.
__________________
2013 FR-S
BlaineWasHere is offline   Reply With Quote
Unread 11-14-2006, 06:29 AM   #13
chris269
Junior Member
 
Join Date: Oct 2006
Location: Kansas City
Posts: 53
Quote:
Originally Posted by SecondTJ
here.



I have also read that the 3.7 was too wide, and the 3.7 is based off the 4.7, so that would make it a bit of fitment problem. Also, to get it and have th JK meet crash standards and emissions. The 4.7 uses the same iginition system, has similar electronics
Its a Jeep. I ve seen big blocks stuffed in side that so called little engine compartment. and your telling us that a little old 4.7 wont fit or that it would be to hard to fix in the field. If you have the know how to fix your 4.0 in the field surely you can fix your 4.7 in the field. If its something complicated that needs diagnostics you probobly couldn't fix either one out in the middle of nowhere. If we want a V8 in a wrangler we just need to make are needs clear to DC and hope for the best. but as far as availability of putting one in a jeep its not brain surgery. you do one and then repeat a whole bunch of times.
chris269 is offline   Reply With Quote
Unread 11-14-2006, 08:30 AM   #14
Bayou Boy
Registered User
 
Join Date: Oct 2006
Location: Houma, LA
Posts: 36
Quote:
Originally Posted by chris269
Its a Jeep. I ve seen big blocks stuffed in side that so called little engine compartment. and your telling us that a little old 4.7 wont fit or that it would be to hard to fix in the field. If you have the know how to fix your 4.0 in the field surely you can fix your 4.7 in the field. If its something complicated that needs diagnostics you probobly couldn't fix either one out in the middle of nowhere. If we want a V8 in a wrangler we just need to make are needs clear to DC and hope for the best. but as far as availability of putting one in a jeep its not brain surgery. you do one and then repeat a whole bunch of times.

"Fitting" and being safe in a head on crash are two different things. Before the Chevrolet S10 was replaced GM tried offering it with a V8. Everything went well until the crash tests. In the head on test the engine ended up sitting in the passenger compartment in between the two from seats.

I assume this is probably going to be the same scenario.
Bayou Boy is offline   Reply With Quote
Unread 11-14-2006, 10:46 AM   #15
chris269
Junior Member
 
Join Date: Oct 2006
Location: Kansas City
Posts: 53
Quote:
Originally Posted by Bayou Boy
"Fitting" and being safe in a head on crash are two different things. Before the Chevrolet S10 was replaced GM tried offering it with a V8. Everything went well until the crash tests. In the head on test the engine ended up sitting in the passenger compartment in between the two from seats.

I assume this is probably going to be the same scenario.
So tell me, what do you think the weight difference is between a v6 and a v8 a couple hundred pounds. build a stronger front end and give us a Hemi. If they can put a v8 in a grand cherokee why not a wrangler unlimited. there basically the same size vehicle. Don't give me this crap that it can't be done. If the Consumer wants it and is willing to pay the price the consumer should be able to have it. Your already talking 30K for a ruby whats another 2 to 3K to have a V8. It's worth it.
chris269 is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.