4.0 Way TOO SLOW!!! - 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 Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > 4.0 Way TOO SLOW!!!

Cess Recovery Gear Snatch Tow Strap OffRoad @ ROCKRIDGE4WD15 x 8 Black D-Window Steel Wheels Set of 4Magnaflow SS Cat Back Exhaust System, Street, High Clearan

Closed Thread
Unread 10-21-2006, 10:51 PM   #1
saint777
Registered User
 
Join Date: Sep 2006
Location: Boston
Posts: 12
4.0 Way TOO SLOW!!!

Hi guys, im sort of new to the 4.0 jeep engines, i just wanted to to know what kind of preformance upgrades were out there and are worth getting cuz this truck is a ****ing slug!!! i mean it cant get out of the way of it self, where talkin like 0-60 in like 11 seconds , I know its not saposta be a ferrari but Ive driven vans that were qwicker. I just got a k&n fpti kit and i only noticed that it made a cool sound when i accelerated, definitly not worth the 150.00 i paid 4 it. anyone know where to by a superchager and or chip... something that i can add to get some noticable gains, i have checked summit and realy dident find much. Please help me find some go fast goodies before i do somthig drastic like a 5.9 engine swap! ....I'm not kidding, I hope someone in here can help me change my mind about this engine before i strap a chain 2 it and use it as an anchor for my boat, thanks guys...... Hey dose the full time all wheel drive have somthing to do with its turtle like acceleration?

saint777 is offline  
Unread 10-21-2006, 11:49 PM   #2
ArloGuthroJeep
Mr. Hyde!
 
ArloGuthroJeep's Avatar
2004 WJ 
 
Join Date: Mar 2005
Location: Boulder, CO
Posts: 23,079
No, the full time isn't to blame.

Search for 4.7L or 4.9L Stroker engine...you can make some sick power out of the engine with some part swapping from older engines to increase the displacement.
__________________
'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package
ArloGuthroJeep is offline  
Unread 10-22-2006, 12:26 AM   #3
jeep_on
Registered User
 
Join Date: Jul 2005
Location: Flagstaff, Arizona
Posts: 1,443
If you just had money to blow, stroke the 4.0L out to at least a 4.7L with some lite-weight reinforced pistons, bolt a KenneBell supercharger on it, new header and exhaust all the way back. Replace the mechanical fan with an electric one out of a Ford Taurus, regear the rear end and than it will get up and move for ya.
__________________
2006 Dodge RAM Laramie w/ 5.9L I6
2010 Volkswagen Jetta w/ TDI 2.0L I4

Waiting on a 2013 RHD JK Unlimited


Quote:
Originally Posted by PM Thor View Post
Wait, you can't cross creeks up there? What the Hell is up with these Canadians?
jeep_on is offline  
Unread 10-22-2006, 12:47 AM   #4
01ACRViper
Registered User
 
Join Date: Aug 2006
Location: Austin
Posts: 147
why buy a jeep without the largest engine expecting it to be fast?
01ACRViper is offline  
Unread 10-22-2006, 01:21 AM   #5
jeep_on
Registered User
 
Join Date: Jul 2005
Location: Flagstaff, Arizona
Posts: 1,443
Quote:
Originally Posted by 01ACRViper
why buy a jeep without the largest engine expecting it to be fast?
Even a Jeep with a 360 is slow. Its a Jeep, not a Ferrari.
__________________
2006 Dodge RAM Laramie w/ 5.9L I6
2010 Volkswagen Jetta w/ TDI 2.0L I4

Waiting on a 2013 RHD JK Unlimited


Quote:
Originally Posted by PM Thor View Post
Wait, you can't cross creeks up there? What the Hell is up with these Canadians?
jeep_on is offline  
Unread 10-22-2006, 02:28 AM   #6
Woody
Retired back to Bowties
 
Woody's Avatar
1985  
 
Join Date: Sep 2004
Location: North Pole, Alaska, Alaska
Posts: 7,079
If you don't like it, sell it.

Go buy a fast car and quit complaining.

11 seconds isn't that bad, I've had and driven far worse.
__________________
Woody
1985 1 ton K-5, Detroit diesel, 36" tires (going bigger when money permits), 4-speed manual swap, Rockwell T-case, Hybrid lift, 12.5K winch.
Woody is offline  
Closed Thread
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.