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How do you convert a 4.0L 2006 to a carburetor
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Bubicon
New User
| Posts: 8
| Joined: 08/09
Posted: 08/15/09 01:20 PM
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1) remove the manifold and everything associated with it 2) disconnect the computer and cap the connectors ? 3) simply attach the fuel line to a holley carburetor on an offenhauser manifold 4) install a different distributor ? 5) live without cruise control 6) rig up a new throttle to the gas pedal ? 7) install a manual choke cable to the dashboard 8) disconnect the oxygen sensors 9) remove the intake airmass sensor control super sensitive electronic damper expensive thing-a-ma-jiggy 10) install a different fuel pump ?
I think the pros outweigh the cons for such a conversion - or am I being un-environmentally friendly ?
Is that it ? Am I missing something that makes it prohibitive ?
Would I still pass emissions ?
I recall a PhD instructor of internal engines who troubleshot GM's first injected corvette, on a track in the south, say "long ago" a well tuned carburetor is just as good. Call me old school but, I miss having a choke.
All I know is the first thing that goes, be it the airmass valve or computer or fuel pressure rail, I'm going to gut the thing like a fish and buy a holley. And all under the hood will finally look right with the world.
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ftgiles
Addict
| Posts: 2178
| Joined: 05/08
Posted: 08/15/09 03:06 PM
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About forty years ago, I remember my dad complaining one Saturday afternoon after working on the family station wagon. My dad was an old timer, but not stupid. I said to him, "Wouldn't it be better to have a horse?". "No", he exclaimed loudly, "They get sick!".
"Old school" and "ignorance" are not the same thing.
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Bubicon
New User
| Posts: 8
| Joined: 08/09
Posted: 08/15/09 04:28 PM
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You said it .
I fear I'm going to forget something the designers were forced to install - like the dam Flor Torx self tapping "monsters" installed by gorilla robots.
I'll bet the computer will not like all the missing injection system parameters - so the scangaugeII will start spitting out digits and all the lights in the dash will create a mini light show.
Can't believe all I'll have to consider just to make it simple again.
Somebody should write an instruction on this conversion and sell a parts kit.
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ftgiles
Addict
| Posts: 2178
| Joined: 05/08
Posted: 08/15/09 04:57 PM
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Ok, I think you missed the point I was trying to make.
Ignorance is not forgetting something, or not knowing something. Ignorance is the choice you make to not know something.
First, it would be completely illegal in every state and would make your Jeep practically worthless. And what would you gain for your efforts and expense? Nothing.
Learn how your Jeep's computer and fuel injection works, and all the benefits that they provide. Not only performance, but also longevity and durability. Learn how the computer and fuel injection cleans up our environment and allows more of the fuel to be used in producing hp and less just being burned up in the catalytic converter. Or worse, just spit out the tail pipe.
Choose to learn about things you don't know, not just hate things you don't know anything about.
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Bubicon
New User
| Posts: 8
| Joined: 08/09
Posted: 08/16/09 05:06 AM
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sorry but, you didn't explain a thing - what are the benefits an injector provides over a carburetor ? And why do you use the word hate - what has that got to do with injectors ?
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ftgiles
Addict
| Posts: 2178
| Joined: 05/08
Posted: 08/16/09 10:23 AM
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I use the word hate because there must be some strong emotion about ridding the so called mess under the hood without any benefits except satisfying this emotion.
Click Here for some explanations.
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redsand723
Enthusiast
| Posts: 529
| Joined: 11/08
Posted: 08/16/09 12:01 PM
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there are a lot of reasons, injection equals better mileage, more power, it wont stall out on steep inclines and many more
"WHEN IN DOUBT TACH IT OUT!"
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Bubicon
New User
| Posts: 8
| Joined: 08/09
Posted: 08/17/09 02:27 PM
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a lot less parts is one major major consideration - the germans developed the injector to fly upside down - some RPV's still use carbs fighting a war - - I would never say what you said to a carb manufacturer, and efficiency, can't beat a carb ... and you say illegal ? never heard that one. Can someone respond with knowledge and not emotions or moral stories about horses ... aaaahhhhhhhh!!!!!!!!
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ftgiles
Addict
| Posts: 2178
| Joined: 05/08
Posted: 08/17/09 03:15 PM
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Tell me what state you live in and I'll post those anti-tampering laws for you also. In 1996 Federal law required that all vehicles had to be OBDII compliant. "Compliant" is the computer and all that it controls.
Federal Law
The federal tampering prohibition is contained in section 203(a)(3) of the Clean Air Act (Act), 42 U.S.C. 7522(a)(3). Section 203(a)(3)(A) of the Act prohibits any person from removing or rendering inoperative any emission control device or element of design installed on or in a motor vehicle or motor vehicle engine prior to its sale and delivery to an ultimate purchaser and prohibits any person from knowingly removing or rendering inoperative any such device or element of design after such sale and delivery, and the causing thereof. The maximum civil penalty for a violation of this section by a manufacturer or dealer is $25,000; for any other person, $2,500. Section 203(a)(3)(B) of the Act prohibits any person from manufacturing or selling, or offering to sell, or installing, any part or component intended for use with, or as part of, any motor vehicle or motor vehicle engine where a principal effect of the part or component is to bypass, defeat, or render inoperative any device or element of design installed on or in a motor vehicle or motor vehicle engine, and where the person knows or should know that such part or component is being offered for sale or is being installed for such use.
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redsand723
Enthusiast
| Posts: 529
| Joined: 11/08
Posted: 08/18/09 05:22 AM
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fuel injection isnt that hard to work on espically on a jeep, theres not much to it
"WHEN IN DOUBT TACH IT OUT!"
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Bubicon
New User
| Posts: 8
| Joined: 08/09
Posted: 08/22/09 10:43 AM
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So what your saying is: the power load/ atmospheric condition envelope mapped by the computer is more efficient throughout the envelope than a carburetor and why carburetors are no longer installed on new cars.
So, if an injected car were modified to a carburetor that modifier would most likely violate a Federal Law.
I'm an idiot ! I don't "dislike" injectors - I just miss my carburetor - why? Less parts that can fail.
On a side note: I have replaced many an injector, computer, fuel pumps, cams, water pumps, transmissions, brakes, clutches, steering gearboxes, ... not to mention the spaghetti of hoses on an 88 honda accord carburetor system ... you know so it would pass emissions - throughout the envelope ... and I miss the simplicity of what came before it all.
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mudb8-
Moderator
| Posts: 3643
| Joined: 08/07
Posted: 08/23/09 11:32 AM
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yep...
if you do put a carb on it wouldn't pass the emissions standard for the year of the vehicle.... it might pass emissions standards for 1970.
humans have this thing about defying the laws of natural selection to over populate the planet and bury our garbage instead of putting it in the atmosphere.
**************************************** see me at.. robsoffroad.com
looking for how to info to mod your tj? check out http://www.stu-offroad.com/index.html and help support the most helpful jeep site on the i-net...
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cgreenwood
Enthusiast
| Posts: 257
| Joined: 02/08
Posted: 08/23/09 04:19 PM
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are there not fewer moving pieces and parts in a fuel injection system than a carb? There is alot to go wrong with a carb it's far from simple!
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ftgiles
Addict
| Posts: 2178
| Joined: 05/08
Posted: 08/23/09 04:54 PM
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All depends on the carb. My Briggs & Stratton 12hp lawn tractor (1980) has a really simple carb on it. Doesn't even have a float bowl to evaporate gas out of and make that nice tarnish that makes starting such a joy. Oh ya, carbs can be really simple... Oh wait, maybe you could make an adapter for the Briggs & Stratton carb... Now that would be simple.
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cgreenwood
Enthusiast
| Posts: 257
| Joined: 02/08
Posted: 08/24/09 01:26 PM
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well you could have six.... one for each cylinder.... wait dang, there goes simple lol
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