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Old 02-13-2011, 07:00 PM
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So, u don't know anything GDI.........but u know I'm a drunk...........that's really big of u, I appreciate that.

Gasoline Direct Injection
http://en.wikipedia.org/wiki/Gasoline_direct_injection proves that the gasoline direct injection wasnt used in a vehicle in the 20's... so not sure where your going with this... proved yourself wrong i guess...so ya looks like i know what GDI is... and i do apologize for saying your drunk... probly over the top... just dont understand how anyone can think this honestly... i guess if you were taught wrong as a kid and have always thought that for years... but its not correct boss...

Carburetor throttle body/plate
http://www.google.com/imgres?imgurl=...w=1259&bih=576 this is aftermarket... bolts between the carb and intake manifold OR bolts in place of the carb... CONVERTING a carbed engine to a TB engine... lol... still once again... proving your wrong...

Throttle body fuel injection (injectors in the throttle body)
http://www.google.com/imgres?imgurl=...1t:429,r:0,s:0

This is a throttle body? alright? sooooo.... its not a carb... dont know at all what this is suppose to prove... lol...

Last edited by huntingman2706217; 02-13-2011 at 07:09 PM.
Old 02-13-2011, 07:13 PM
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Old 02-13-2011, 07:40 PM
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Originally Posted by playin4funami
would it be to swap my 90 throttle body engine (4.0) to fuel injected(I have a complete 92 jeep with all the fuel injection stuff with a broke crank. Is it possible to do this and will it all bolt up? I assume I would also need to change the fuel pump and fuel lines and will I need to bring the computer over too? the throttle body runs okay now I just don't like the hesitation on it when I press the skinny pedal. Is it worth it?

WOW, how did we get sooo far off of the original question he posted above?

It looks to me that he simply wanted to know if he could use stuff from a 92 on his 90. Just looks like a little confusion about what he currently has on the 90. Maybe I'm reading it wrong though.
Old 02-13-2011, 07:59 PM
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Originally Posted by huntingman2706217
So, u don't know anything GDI.........but u know I'm a drunk...........that's really big of u, I appreciate that.

Gasoline Direct Injection
http://en.wikipedia.org/wiki/Gasoline_direct_injection proves that the gasoline direct injection wasnt used in a vehicle in the 20's... so not sure where your going with this... proved yourself wrong i guess...so ya looks like i know what GDI is... and i do apologize for saying your drunk... probly over the top... just dont understand how anyone can think this honestly... i guess if you were taught wrong as a kid and have always thought that for years... but its not correct boss...

Carburetor throttle body/plate
http://www.google.com/imgres?imgurl=...w=1259&bih=576 this is aftermarket... bolts between the carb and intake manifold OR bolts in place of the carb... CONVERTING a carbed engine to a TB engine... lol... still once again... proving your wrong...

Throttle body fuel injection (injectors in the throttle body)
http://www.google.com/imgres?imgurl=...1t:429,r:0,s:0

This is a throttle body? alright? sooooo.... its not a carb... dont know at all what this is suppose to prove... lol...


You're the one that said in post #9 "not perfected it in a gas motor 'til Ford built there's". Read both early and later systems.

http://en.wikipedia.org/wiki/Gasolin...ection#History

The pic of the carburetor throttle body I posted is part of the carburetor (Holley style 4bbl). All carburetos have a throttle contained with their body.......to increase/decrease the air entering the engine.

http://www.google.com/images?um=1&hl...f&aqi=&aql=&oq=

Gas pedal connects to the throttle (body) via a wire cable or "drive by wire" electronically. I believe u also said in post #11 "a carb has the injectors.......", carbs don't have in injectors, they have nozzles. Those early EFI throttle bodies.......most of them had the injector(s) in the throttle bodies. Most all IC engines have a throttle inside of a body of some sort, even today. To say they don't, like u did in post #9, "there is no throttle body or anything", is just wrong.
Old 02-13-2011, 08:00 PM
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Originally Posted by AMXJ
WOW, how did we get sooo far off of the original question he posted above?

It looks to me that he simply wanted to know if he could use stuff from a 92 on his 90. Just looks like a little confusion about what he currently has on the 90. Maybe I'm reading it wrong though.
Bet he understands a little more about EFI and the different variations. I didn't want him (the OP) to get confused with bad info.
Old 02-13-2011, 08:24 PM
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You're the one that said in post #9 "not perfected it in a gas motor 'til Ford built there's". Read both early and later systems. at this statement i was wrong... the ford was not the first... i read the article long before you posted it... it says it was in 1954... but anyone can change wiki's information and if you read right after that its confusing because it mentions direct injection in 55 and fuel injection or something... guess who ever last edited didnt properly state that so im not sure what it means... regardless me saying the ford was first is wrong... but your statement of it being used in a vehicle in the 20's was also wrong... it was only used in 4 stroke and 2 stroke motors then...

http://en.wikipedia.org/wiki/Gasolin...ection#History

The pic of the carburetor throttle body I posted is part of the carburetor (Holley style 4bbl). All carburetos have a throttle contained with their body.......to increase/decrease the air entering the engine. googled "carburetor throttle body" and nothing comes up... nothing except how to differentiate between a carb and a throttle body... and everything explaining how they are different... nothing for a carburetor throttle container either...

http://www.google.com/images?um=1&hl...f&aqi=&aql=&oq=

Gas pedal connects to the throttle (body) via a wire cable or "drive by wire" electronically. I believe u also said in post #11 "a carb has the injectors.......", i know they dont have injectors inside... i thought about that after i wrote that but figured you would know what i meant... so i just left it... carbs don't have in injectors, they have nozzles. Those early EFI throttle bodies.......most of them had the injector(s) in the throttle bodies. Most all IC engines have a throttle inside of a body of some sort, even today. To say they don't, like u did in post #9, "there is no throttle body or anything", is just wrong.[/QUOTE] i said this about the direct injection motors... and thats true... show me a throttle body on a 5.9 cummins direct injection engine... fuel is controlled by the computer to match the air and air is not controlled but measured... hard cable to sensors under the hood to make for adjustments in acceleration...
Old 02-13-2011, 08:25 PM
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Originally Posted by AMXJ
WOW, how did we get sooo far off of the original question he posted above?

It looks to me that he simply wanted to know if he could use stuff from a 92 on his 90. Just looks like a little confusion about what he currently has on the 90. Maybe I'm reading it wrong though.
he got his answers like 40 posts ago lol...



but im obviously wasting my time explaining and arguing so im done... fire back if you must but i dont care... at least theres a thread with a good discussion on all of this for someone to google up... ill let everyone else think for themselves on the information given...

Last edited by huntingman2706217; 02-13-2011 at 08:30 PM.
Old 02-13-2011, 08:33 PM
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Originally Posted by huntingman2706217
he got his answers like 40 posts ago lol...
Exactly! Kind of what I was saying.
Old 02-13-2011, 08:41 PM
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Originally Posted by huntingman2706217
direct injection? direct injection is how the new Ford V6 motor is getting crazy good gas mileage with crazy good power... direct injection is the cummins 5.9... direct injection means the injector injects right down onto the cylinder head and there is no throttle body or anything... found on boats as well... but not perfected in a gas motor till ford built theres... from 86-01 they all had throttle bodies on the I6... just two different style...

now to answer you question is it possible? yes... it is possible... BUT you gonna need to swap the entire wire harness... computer... the head off of the 92 along with everything attached to your harness... its a big job... and its not worth it... better off buying 91+ or fixing what evers wrong with the 92 with parts from the 90... or fixing your 90 renix.... if its sluggish then theres a reason... not because of the model of throttle body... i had no problems with my 89 and it being sluggish or studder or anything... drives just like my 95...
I have a 89 and it is direct injection. Injector at every cylinder, all of them are this way. My Jeep has the renix system which was replaced by the chrysler system. Previously said!
Old 02-13-2011, 10:12 PM
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I believe what u have is multi point/port injection....not direct injection. There still seems to be some confusion.

Last edited by djb383; 02-13-2011 at 10:14 PM.
Old 02-13-2011, 11:00 PM
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Maybe this will help:

Carburetor-


Throttlebody Injection (TBI)-



Multi-point Fuel Injection-



Direct Injection-


(Note for above: Could not find a pic of a D.I. engine with the injection system obviously exposed. This is a picture of a Direct Injection fuel pump for a Cummins D.I. engine)
Old 02-13-2011, 11:41 PM
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Originally Posted by AMXJ

WOW, how did we get sooo far off of the original question he posted above?

It looks to me that he simply wanted to know if he could use stuff from a 92 on his 90. Just looks like a little confusion about what he currently has on the 90. Maybe I'm reading it wrong though.



That question was answered long ago...
Old 02-14-2011, 12:04 AM
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Originally Posted by 00Pajeepcherokee
That question was answered long ago...
Exactly! That is pretty much what I ment!
Old 02-14-2011, 11:13 AM
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.....and guess what's attached too, and on the bottom side of, that carburetor.....the throttle body.

http://www.google.com/imgres?imgurl=...w=1276&bih=576
Old 02-14-2011, 11:54 AM
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Per Wikipedia:

The first use of direct gasoline injection was on the Hesselman engine invented by Swedish engineer Jonas Hesselman in 1925[1][2]. Hesselman engines use the ultra lean burn principle; fuel is injected toward the end of the compression stroke, then ignited with a spark plug. They are often started on gasoline and then switched to diesel or kerosene[3]. Fuel injection was in widespread commercial use in diesel engines by the mid-1920s. Because of its greater immunity to wildly changing g-forces on the engine, the concept was adapted for use in gasoline-powered aircraft during World War II, and direct injection was employed in some notable designs like the Junkers Jumo 210, the Daimler-Benz DB 601, the BMW 801, the Shvetsov ASh-82FN (M-82FN) and later versions of the Wright R-3350 used in the B-29 Superfortress.

found here:http://en.wikipedia.org/wiki/Fuel_injection

So I guess you could say that fuel injection (direct or otherwise) has been around since the '20's.


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