CNG Equipped TJ - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-27-2013, 09:01 PM   #1
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
CNG Equipped TJ

Curious as to If anyone was equipped with CNG. (Compressed Natural Gas) From what I've read it may be worth a try, expecially with a sponsorship of some kind. I also hear the conversion is really easy, with the rear seat removed, it also has a perfect place for a NG tank. Anyone know of one done, or have one?
Attached Thumbnails
Click image for larger version

Name:	image-2095377302.jpg
Views:	78
Size:	175.7 KB
ID:	228298  

__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-27-2013, 09:33 PM   #2
Jeeper
 
PHILDABEAST's Avatar
 
Join Date: Nov 2012
Location: Farmington N.M.
Posts: 823
I make living working on ng engines and I wouldn't convert any engine to run on it. Plus a jeep really can't afford the loss of horsepower.

PHILDABEAST is offline   Quote Quick Reply
Old 03-28-2013, 07:46 AM   #3
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by PHILDABEAST View Post
I make living working on ng engines and I wouldn't convert any engine to run on it. Plus a jeep really can't afford the loss of horsepower.
How big is the loss in hp?
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 07:51 AM   #4
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,823
Not only loss of HP but less fuel efficiency. Had a Ford Bus done a few years ago at a cost of over 20K because we had to add a lot of tanks to try to get the same range as a gas powered bus. And where are you going to fuel when your on the road. CNG powered vehicles are only good if you have NG available.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 03-28-2013, 08:04 AM   #5
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by Atthehop View Post
Not only loss of HP but less fuel efficiency. Had a Ford Bus done a few years ago at a cost of over 20K because we had to add a lot of tanks to try to get the same range as a gas powered bus. And where are you going to fuel when your on the road. CNG powered vehicles are only good if you have NG available.
I have it piped into my home, I could fill it in my garage.
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 08:44 AM   #6
Jeeper
 
Jared234's Avatar
 
Join Date: Sep 2011
Location: Boston, MA
Posts: 222
Quote:
Originally Posted by GingerTJ View Post
I have it piped into my home, I could fill it in my garage.
Sounds like a good way to get arrested. You need a ridiculous amount of permits to house a CNG fill location for obvious reasons. Not to mention your insurance will drop you and your neighbors will move out.

And more importantly, how will you fill up on the road?
In Boston we have fill stations in the city, but outside of that you would be screwed.
__________________
Solar Yellow TJ
Jared234 is offline   Quote Quick Reply
Old 03-28-2013, 08:52 AM   #7
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by Jared234 View Post

Sounds like a good way to get arrested. You need a ridiculous amount of permits to house a CNG fill location for obvious reasons. Not to mention your insurance will drop you and your neighbors will move out.

And more importantly, how will you fill up on the road?
In Boston we have fill stations in the city, but outside of that you would be screwed.
They make home pump units for cng, I could obtain the permits, I live outside of the city. And who takes a lifted jeep on MT tires on a road trip? Lol of course you would have gasoline as a backup.
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 09:08 AM   #8
Jeeper
 
sparky's Avatar
 
Join Date: Oct 2009
Location: Phila
Posts: 1,843
O, then why. No power gains, loss of cargo room, expensive.

What are the pluses?
sparky is offline   Quote Quick Reply
Old 03-28-2013, 11:04 AM   #9
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by sparky View Post
O, then why. No power gains, loss of cargo room, expensive.

What are the pluses?
CNG is really inexpensive and your jeep can run it with hardly any modifications. With a sponsorship from a CNG company you could make your jeeps fuel bill 25% of what it was less equipment
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 11:51 AM   #10
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,823
Even if you have it in your house where do you get it on the road or do you never plan to leave the neighborhood.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 03-28-2013, 11:57 AM   #11
Jeeper
 
sinepome's Avatar
 
Join Date: Oct 2010
Posts: 513
In most areas it is illegal to convert a gas vehicle to cng. For on road use.
A Benefit of cng is you can go up or down steeper inclines without fuel cutting out. There's a few videos of a 302 on cng running completely upside down. And another video of it submerged under water.
Off road you will probably get better fuel economy. GL.
sinepome is offline   Quote Quick Reply
Old 03-28-2013, 01:13 PM   #12
Jeeper
 
PHILDABEAST's Avatar
 
Join Date: Nov 2012
Location: Farmington N.M.
Posts: 823
Quote:
Originally Posted by GingerTJ View Post

How big is the loss in hp?
You could expect your hp to be cut almost in half. And to properly do the conversion you would need to get a camshaft with the proper profile for ng and I would also recommend proper valves and seats. Its not as easy to do it reliably as some might make it seem. Like I said I make a living working on ng engines and would NEVER consider doing a conversion.
PHILDABEAST is offline   Quote Quick Reply
Old 03-28-2013, 01:49 PM   #13
Jeeper
 
beaureed445's Avatar
 
Join Date: Sep 2012
Location: Oklahoma
Posts: 464
Quote:
Originally Posted by GingerTJ View Post
CNG is really inexpensive and your jeep can run it with hardly any modifications. With a sponsorship from a CNG company you could make your jeeps fuel bill 25% of what it was less equipment
I live in Oklahoma City, and I can get CNG for .99/ gal right now.

Quote:
Originally Posted by sinepome View Post
In most areas it is illegal to convert a gas vehicle to cng. For on road use.
A Benefit of cng is you can go up or down steeper inclines without fuel cutting out. There's a few videos of a 302 on cng running completely upside down. And another video of it submerged under water.
Off road you will probably get better fuel economy. GL.
Where did you get that info? The CNG conversion industry if booming right now with people converting their vehicles over to CNG from gas. Pretty much all of the newer fuel stations are carrying it now. Our city-owned buses are also being converted.
beaureed445 is offline   Quote Quick Reply
Old 03-28-2013, 02:01 PM   #14
Jeeper
 
PHILDABEAST's Avatar
 
Join Date: Nov 2012
Location: Farmington N.M.
Posts: 823
Quote:
Originally Posted by beaureed445 View Post

I live in Oklahoma City, and I can get CNG for .99/ gal right now.

Where did you get that info? The CNG conversion industry if booming right now with people converting their vehicles over to CNG from gas. Pretty much all of the newer fuel stations are carrying it now. Our city-owned buses are also being converted.
Are you sure its cng and not lpg?
PHILDABEAST is offline   Quote Quick Reply
Old 03-28-2013, 06:17 PM   #15
Jeeper
 
sinepome's Avatar
 
Join Date: Oct 2010
Posts: 513
Quote:
Originally Posted by beaureed445

Where did you get that info? The CNG conversion industry if booming right now with people converting their vehicles over to CNG from gas. Pretty much all of the newer fuel stations are carrying it now. Our city-owned buses are also being converted.
I guess I should have been more clear. In areas where emissions tests are required you can not change your fuel type (ie gas to diesel or gas to cng ect. ) typically( in my area at least) once a vehicle is 25+ years old it is exempt from said emissions tests. A city bus designed to run on cng would be a different story since its a gov vehicle.
sinepome is offline   Quote Quick Reply
Old 03-28-2013, 06:31 PM   #16
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,823
City buses fall under different emission standards since they are normally diesel power. Plus they are 80 percent federally funded so the incremental costs, 50-75K per bus, is paid by all us taxpayers.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 03-28-2013, 08:10 PM   #17
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by Atthehop View Post
Even if you have it in your house where do you get it on the road or do you never plan to leave the neighborhood.
You will use your gasoline.
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 08:11 PM   #18
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by sinepome View Post
In most areas it is illegal to convert a gas vehicle to cng. For on road use.
A Benefit of cng is you can go up or down steeper inclines without fuel cutting out. There's a few videos of a 302 on cng running completely upside down. And another video of it submerged under water.
Off road you will probably get better fuel economy. GL.
Not illegal in Illinois. And idk why it would be...
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 08:13 PM   #19
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by sinepome View Post
I guess I should have been more clear. In areas where emissions tests are required you can not change your fuel type (ie gas to diesel or gas to cng ect. ) typically( in my area at least) once a vehicle is 25+ years old it is exempt from said emissions tests. A city bus designed to run on cng would be a different story since its a gov vehicle.
That's absolutely f***ed up. Cng is cleaner than gasoline. And easier to extract from the earth. Why the hell would you not be able to.
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 08:15 PM   #20
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by sinepome View Post
I guess I should have been more clear. In areas where emissions tests are required you can not change your fuel type (ie gas to diesel or gas to cng ect. ) typically( in my area at least) once a vehicle is 25+ years old it is exempt from said emissions tests. A city bus designed to run on cng would be a different story since its a gov vehicle.
I bet you live in California where all rules came from a coked out politician
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-28-2013, 08:41 PM   #21
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,823
Quote:
Originally Posted by GingerTJ View Post
I bet you live in California where all rules came from a coked out politician
Not only that, the politicians all get donations from the CNG coalition.

Years ago I was solicited by the CNG coalition to buy CNG buses for the company I worked for, now my picture is on their dart board because I found many many holes in what they were pitching as clean and they would never answer some of my concerns.
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 03-28-2013, 10:50 PM   #22
Jeeper
 
sinepome's Avatar
 
Join Date: Oct 2010
Posts: 513
Quote:
Originally Posted by GingerTJ

That's absolutely f***ed up. Cng is cleaner than gasoline. And easier to extract from the earth. Why the hell would you not be able to.
Mostly I believe it's because the cng is pressurized. People cut corners. Imagine if someone decided to put their tank in a bad spot and it got punctured in a wreck. Could turn out badly.
Quote:
Originally Posted by GingerTJ

I bet you live in California where all rules came from a coked out politician
Haha. GA. But the politicians are still Just as "coked out".
sinepome is offline   Quote Quick Reply
Old 03-29-2013, 05:42 AM   #23
Jeeper
 
Atthehop's Avatar
 
Join Date: Jul 2008
Location: NW, NJ
Posts: 3,823
CNG tanks are pressurized to 3,000 psi. There was one that blew up in a bus in Los Angeles a bunch of years back and bounced inside the bus while being fueled. The fueler was not injured because he as not inside cleaning it at the moment but it was hushed up from the press.

There is a by product of burning NG as a fuel, it emits Formaldeyhide and is not regulated. When I asked the CNG coalition about it they would not comment.

I do know this about it "toxic effects of formaldehyde on the nervous system"
__________________
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
Atthehop is online now   Quote Quick Reply
Old 03-29-2013, 11:28 PM   #24
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by Atthehop View Post
CNG tanks are pressurized to 3,000 psi. There was one that blew up in a bus in Los Angeles a bunch of years back and bounced inside the bus while being fueled. The fueler was not injured because he as not inside cleaning it at the moment but it was hushed up from the press.

There is a by product of burning NG as a fuel, it emits Formaldeyhide and is not regulated. When I asked the CNG coalition about it they would not comment.

I do know this about it "toxic effects of formaldehyde on the nervous system"
I guess gasoline is the only answer?
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 03-30-2013, 08:14 PM   #25
Jeeper
 
Join Date: Mar 2012
Location: Colfax Ca.
Posts: 23
I work for a Utility that has CNG stations and vehicles. You don't have enough room in your TJ to have any driving range with the size of tank that could be installed in it. We have long bed pickups with CNG tanks in the front of the bed that take up more than a third of the 8' bed to enable the truck to have any driving range at all. Some of the local Garbage and Bus Fleets have converted to CNG. I talked to a Garbage truck driver recently, and asked him how often he needs to fill the CNG tanks. Twice per day at 20 to 30 minutes per fill. Unless you have room for some large tanks you won't be going very far.

Rich
__________________
2003 TJ Sport 4.0 NV3550
Rich1961 is offline   Quote Quick Reply
Old 04-01-2013, 10:01 AM   #26
Jeeper
 
GingerTJ's Avatar
 
Join Date: Feb 2013
Posts: 1,526
Quote:
Originally Posted by Rich1961 View Post
I work for a Utility that has CNG stations and vehicles. You don't have enough room in your TJ to have any driving range with the size of tank that could be installed in it. We have long bed pickups with CNG tanks in the front of the bed that take up more than a third of the 8' bed to enable the truck to have any driving range at all. Some of the local Garbage and Bus Fleets have converted to CNG. I talked to a Garbage truck driver recently, and asked him how often he needs to fill the CNG tanks. Twice per day at 20 to 30 minutes per fill. Unless you have room for some large tanks you won't be going very far.

Rich
I was thining a bi-fuel system. Once out of CNG (where it could be fueled at home) you could fill it with gasoline. Save some cost on fuel. I don't drive more than 40 miles a day anyway
__________________
4" BDS springs, zone nitro shocks, rubicon express track bar, Currie tie rod, 1" Rokmen bl, 1" JKS mml, AA Sye/cv conversion, Black Magic Brakes, JKS upper adjustable arms, 4.88 regear, 27 spline chromeolly shafts, 35x12.5x15 GG's on ion's 174, rhino lined tub, boat cannon stereo, rock hard harness bar, Led Windshield Light bar
GingerTJ is offline   Quote Quick Reply
Old 07-11-2014, 06:13 PM   #27
Newb
 
Join Date: Jul 2014
Posts: 2
This is an older thread, and I posted this post in another thread but thought it relevant here also. My Jeep is a 2014 unlimited, so a bit more space for tanks, but still a Jeep and still on CNG now.....
Here is my post.....
Just to let everyone know, I took the plunge and I guess I am the Guinea Pig on the first 2014 wrangler with CNG. I already owned a E-350 that is a dedicated CNG van, so it wasn't a big jump for me to try it on my daily driver. I have about 2000 miles on the jeep so far with CNG and so far, so good. I had a great, knowledgeable company (Mach Fuels in Chattanooga,Tn) do the conversion and they are very interested in the data as well since this is a new engine design, and unchartered territory for CNG. CNG seems to change the shift points, but other than that, no difference in driving the Jeep at all. I seem to get about the same or maybe slightly less MPG around town and for sure ONE MPG BETTER on the highway than on regular gasoline. Our local utility district recently installed a filling station so that was huge in my decision to do the Jeep, plus we can buy CNG for $1.98 GGE (Gallon Gas Equivalent). So, depending on the day you look at gas prices, I am generally buying CNG for about $1.40-$1.50 less that standard gas.
This is not a cheap conversion, my guess is I need to drive the Jeep about 65K miles to recover the investment of converting before I see any real savings in my pocket. However that number can vary depending on where you live with some states having tax incentives, etc to do conversions. Here in Tennessee we don't see those at all at this point.
Planning a trip is a bit more than just stopping at any exit for fuel. We did a 1600 mile trip last week from Pigeon Forge, Tn, to Siesta Key,Fl and back. My range (10GGE) is about 180 we think (figuring 21mpg highway and probably 8.6 usuable fuel volume). We had two segments that were 179 and 177 miles each, so there was a question as to if we would have to switch back to gasoline, but we made it fine and did the entire trip on CNG. Prices varied from $2.59 (atlanta) to $2.49 (Athens,Tn) to all other stops at $2.35. Remember, in Florida and Georgia, regular gas ran anywhere from $3.39 to $3.89, depending on where we were at.
Anyway, I am very happy so far with the performance and mileage of the conversion and while I am certainly no TREE HUGGER, it is nice to buy fuel cheaper and know I am "driving green" in something other than a prius.

Bill Howell is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
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

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 Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:04 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC