Chevy 6.2L in a JK - Page 4 - 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 > Chevy 6.2L in a JK

ROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO TeraFlex JK 2/4 Door 2.5" Lift Kit!! DEALS AT ROCKRIDFS: Wranger BRIGHT License Plate LED! Just $3! Great value

Reply
Unread 09-22-2013, 07:36 PM   #46
JohnPShoe
Registered User
 
Join Date: Mar 2011
Location: Prairieville, LA
Posts: 12
Sorry I haven't posted in a while, life tends to get in the way. The Jeep has been good. The swap was definately worth it! The power is nice. Currently, I have the body and frame separated again. I am making a few changes to a couple of things and checking on how well everything has performed for the last 10k miles. I will post back when i get it back together.

__________________
2008 Stone White Unlimited Rubicon, 400+HP 6.2L LS Motech special
JohnPShoe is offline   Reply With Quote Quick reply to this message
Unread 06-27-2014, 12:37 PM   #47
gbanker
Registered User
2014 JK Wrangler 
 
Join Date: Jun 2014
Location: Durango, Colorado
Posts: 1
Current status?

Quote:
I am making a few changes to a couple of things and checking on how well everything has performed for the last 10k miles.
Wondering if the changes were needed due to the engine, etc. install and can we get an update as to how the last 10K went?
Thanks
gbanker is offline   Reply With Quote Quick reply to this message
Unread 08-10-2014, 09:42 AM   #48
69mach1
Registered User
 
Join Date: Dec 2010
Location: Poway, California
Posts: 5
5.3 or 6.2?

Quote:
Originally Posted by JohnPShoe View Post
Sorry I haven't posted in a while, life tends to get in the way. The Jeep has been good. The swap was definately worth it! The power is nice. Currently, I have the body and frame separated again. I am making a few changes to a couple of things and checking on how well everything has performed for the last 10k miles. I will post back when i get it back together.
Checking for status update, satisfaction, mpg, and mods you've added since I'm on the fence 5.3 or 6.2 my JK 4dr is portly and will have trailer duties towing an Rpod trailer now and again. Any advice would be appreciated
69mach1 is offline   Reply With Quote Quick reply to this message
Unread 08-10-2014, 06:27 PM   #49
JohnPShoe
Registered User
 
Join Date: Mar 2011
Location: Prairieville, LA
Posts: 12
Hey guys, sorry I haven't logged on in a while.

gbanker......The Jeep is doing well. No major changes when I took it apart, just a few tweaks. We've got about 18k on it since the swap and it is driven everywhere. It's been to Destin twice(6hr trip), to Little Rock once(7hr trip), and all over locally. The wife loves it! She told me again the other day that I hit the nail on the head.

69mach1.....I have not driven the 5.3 in a Jeep, but the wife's Suburban has one. I think the 5.3 would be great, but I prefer the 6.2. The power is awesome, definately more than the Sub, but the Jeep is also probably 3500lbs lighter. Mileage is not what I hoped it would be, but i'm sure that it is proportional to it spending most of it's time on the interstate at 75mph. I'm spending a lot of time on a custom tune right now trying to get everything perfect. Before I finish, I will spend a little time on trying to improve mileage.
__________________
2008 Stone White Unlimited Rubicon, 400+HP 6.2L LS Motech special
JohnPShoe is offline   Reply With Quote Quick reply to this message
Unread 08-10-2014, 07:15 PM   #50
goodwrenchdave
Registered User
2008 JK Wrangler 
 
Join Date: Aug 2013
Location: near Montreal, Quebec Canada
Posts: 531
What I've always wondered is if the stability control, ABS, traction control work flawlessly or even work at all. Lets not get into a debate as to the usefulness or personal opinions of such systems!

How effective is the 2way intercommunication between the GMLAN, and the Chrysler Cbus then to the -TIPM (translator to the) I bus? I assume mo-tech or whomever builds an "interface" so one can speak to the other? Nothing ever seems to be spoken about these systems.
goodwrenchdave is offline   Reply With Quote Quick reply to this message
Unread 08-10-2014, 08:20 PM   #51
VEGASROBBI
Registered User
 
Join Date: May 2010
Location: LAS VEGAS, NEVADA
Posts: 205
Quote:
Originally Posted by goodwrenchdave View Post
What I've always wondered is if the stability control, ABS, traction control work flawlessly or even work at all. Lets not get into a debate as to the usefulness or personal opinions of such systems!

How effective is the 2way intercommunication between the GMLAN, and the Chrysler Cbus then to the -TIPM (translator to the) I bus? I assume mo-tech or whomever builds an "interface" so one can speak to the other? Nothing ever seems to be spoken about these systems.
All ESP active braking functions remain active; this includes anti-lock brakes ABS, electronic roll mitigation ERM, Hill start, trailer sway control TSC, brake locking differentials, brake assisted steering and more. Torque management is not functional through the Jeep side, the ABS module cannot command the PCM too reduce power. The GM side has it's own torque management for axle protection, anti clunk, etc. Your JK operates in the same mode as pushing the ESP button.

For an additional cost we can fit an adjustable TC that allows torque reduction that won't get you into trouble by cutting engine power in a precarious situation like the OEJK system. Dirt track racers use a similar TC to go faster.

As far as the effectiveness of the integration I would say it is excellent. We manufacturer our own electronics, hardware, software and firmware. Properly done it's difficult to tell a swap has been done. The factory cruise control, HVAC controls, instruments, etc all work as intended by Jeep.
__________________
[CENTER][B][COLOR="Red"]MoTech[/COLOR][/B][/CENTER]
[CENTER][COLOR="Blue"]LS Specialists[/COLOR][/CENTER]
[CENTER]500 South Buffalo Drive, Las Vegas NV 89145 702-491-7710[/CENTER]
[CENTER][COLOR="Blue"]www.LSWrangler.com[/COLOR][/CENTER]
VEGASROBBI is offline   Reply With Quote Quick reply to this message
Unread 08-10-2014, 08:35 PM   #52
JohnPShoe
Registered User
 
Join Date: Mar 2011
Location: Prairieville, LA
Posts: 12
What he said!

You beat me to the punch.
__________________
2008 Stone White Unlimited Rubicon, 400+HP 6.2L LS Motech special
JohnPShoe is offline   Reply With Quote Quick reply to this message
Unread 09-11-2014, 09:41 PM   #53
69mach1
Registered User
 
Join Date: Dec 2010
Location: Poway, California
Posts: 5
Quote:
Originally Posted by JohnPShoe View Post
Hey guys, sorry I haven't logged on in a while.

gbanker......The Jeep is doing well. No major changes when I took it apart, just a few tweaks. We've got about 18k on it since the swap and it is driven everywhere. It's been to Destin twice(6hr trip), to Little Rock once(7hr trip), and all over locally. The wife loves it! She told me again the other day that I hit the nail on the head.

69mach1.....I have not driven the 5.3 in a Jeep, but the wife's Suburban has one. I think the 5.3 would be great, but I prefer the 6.2. The power is awesome, definately more than the Sub, but the Jeep is also probably 3500lbs lighter. Mileage is not what I hoped it would be, but i'm sure that it is proportional to it spending most of it's time on the interstate at 75mph. I'm spending a lot of time on a custom tune right now trying to get everything perfect. Before I finish, I will spend a little time on trying to improve mileage.
Thanks for touching base Still researching by options while I save for this swap. What radiator did you use? I'm going to be pulling a 3000lb camping trailer and want to be sure of no overheating issues. I'm running 37" Nitto Trail Grapplers w/5:13 gears. I didn't notice what tire/gears you're running. Is the mpg @ 75 ~15mpg ish? I'm hoping for 17mpg @ 70 without a trailer hanging on the back Any other helpful hints on this swap, Motech seems to be the path I'm taking once the $ appear

Thanks for you response,

Jon aka 69Mach1
69mach1 is offline   Reply With Quote Quick reply to this message
Unread 01-30-2015, 06:31 PM   #54
Bbeyer
Registered User
 
Join Date: Jul 2013
Location: southampton, ny
Posts: 28
Nice Work, man. I work at a shop that is doing one of these (with motec parts, and a 6.2). The motec guys are great, but they told us that they dont really offer an "install guide".. they just shipped us a box full of brackets and things... I figured Id find someone on the board here that has done this swap and learn from their posts. I havent had the time yet to look through all of your thread here but I will check it out.
Here are some pics of the jeep we have. We know this JK inside and out. We did a clayton longarm kit, a Ripp supercharger, rock sliders, bumpers, onboard air compressor, Pro rock 44 front.. regearing etc..
and then the guy wanted to go bigger so he bought 40" tires, pro rock dana 80's, and took it to clayton for the coil over suspension stuff (hes got that slick throwdown rear setup, too)
Now hes in need of more power. On top of that, his tranny toasted from the heat recently. We had a temp gauge on the dash for the trans, with a thermostatic switch controlling a tranny cooler we mounted behind the radiator. that wasnt enough so another cooler got mounted inside the jeep in the back with a fan on it... (someone else installed that) He still fried the tranny.. I think the 40's are just too much for it..

So he ordered a 6.2 with an auto trans, were gonna bolt an atlas tcase to that.. and we have the Motec swap parts.. We already sent the cluster and harness, etc to them.

Hopefully the knowledgable JK community here can guide us along on this swap. Thanks guys
jk.jpg   jk3.jpg   jk2.jpg   jk4.jpg   jk5.jpg  

Bbeyer is offline   Reply With Quote Quick reply to this message
Unread 01-31-2015, 04:26 AM   #55
JLH
Registered User
2015 JK Wrangler 
 
Join Date: Sep 2006
Location: Indianapolis
Posts: 485
Not to turn this into a 5.3L vs 6.2L debate, but obviously the 5.3L will return better MPG numbers than the 6.2L. With the 6L80's 0.667 overdrive the 5.3L should pull down 20 MPG going down the highway.
__________________
Ah, how beautifully the orchestra sounds before a rain! In a dry sunny day there is no way for the instruments to sound this way!
JLH is offline   Reply With Quote Quick reply to this message
Unread 01-31-2015, 05:08 AM   #56
Prot
Web Wheeler
 
Prot's Avatar
2014 JK Wrangler 
 
Join Date: Feb 2007
Location: Lafayette, LA
Posts: 7,397
It is comical that fuel economy enters the equation when doing such an expensive modification to a Jeep, a modification whose sole purpose is more power I might add.
__________________
2014 Copperhead Pearl Unlimited Sahara in progress
Prot is offline   Reply With Quote Quick reply to this message
Unread 01-31-2015, 08:46 AM   #57
222Doc
Web Wheeler
 
222Doc's Avatar
2012 JK Wrangler 
 
Join Date: Sep 2011
Location: Lake Havasu City, AZ
Posts: 5,071
what is comical is that it gets as good mpg as the pentatick
__________________
http://www.parker4wheelers.net
www.bullhead4wheelersinc.com
222Doc is offline   Reply With Quote Quick reply to this message
Unread 01-31-2015, 11:38 AM   #58
JLH
Registered User
2015 JK Wrangler 
 
Join Date: Sep 2006
Location: Indianapolis
Posts: 485
A vehicle's maximum fuel range is not comical. Get stranded out in BFE and see how much you laugh about your MPG.
__________________
Ah, how beautifully the orchestra sounds before a rain! In a dry sunny day there is no way for the instruments to sound this way!
JLH is offline   Reply With Quote Quick reply to this message
Unread 01-31-2015, 01:12 PM   #59
pgottwig
Newbie
 
pgottwig's Avatar
 
Join Date: Dec 2014
Location: Thousand Oaks, CA
Posts: 3
John, this is almost EXACTLY what I'm planning to do once I get the fam moved out to S California this spring! Great info and thanks for the heads up on Dahmer Power. Just so I don't mis-quote...You purchased the L92/6L80 combo from Dahmer (great deal btw) and then the Motech Basic Kit to ease the install? How are you liking the paddle shifters? I'm still on the fence about them, but cruise is always nice getting to and from the dirt. Nice job...any pics of everything completed?
pgottwig is offline   Reply With Quote Quick reply to this message
Reply

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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

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.


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.