Hey, Im wondering where the search button is so i dont have to start a new thread. Its not there anymore? Anyways... Here it is anyways. Has anyone converted EFI to Carb? Just curious. My dad got a new boat a 201 Liberator Four Winns and it has a 351W HO in it. This boat freakin moves! Sounds awesome too!. Im just wondering if he will notice if i switch motors with him LOL! JK The motor in the boat is really old school with a huge holley carb. And all i can say is its got one HUGE cam in it! And headers with 4 inch tips so that helps no mufflers also lol. Awesome boat!

 

To do it you would obvisouly need to change the intake and add the carb. The fuel pump wont run without the computer unless you rewired them to run on a straight switched ignition. You will have to redo some fuel lines to get the proper fittings for the carb and install a fuel pressure regulator to get from 40+ psi to like 6-8psi. After that an aftermarket igntion and distributor would also need to be installed since the stock distributor and ignition is computer controlled. Its a bit of work, but it can be done. Get some good wiring diagrams for the truck so that you know which circuits are 12v switched and constant with the key to simplify wiring stuffs. Once you're done then you can do just about anything you want with the motor and not worry about if the computer can run it or not. Cheaper build for a new motor too.

 

The Search is under Forums in the upper left corner.

 

It is possible but a federal crime!!! If you plan on keeping the truck for life or swapping it back when you sell it go ahead, You probably won't ever get pulled by D.O.T. and most local sheriffs won't really care to check into it unless you got a super loud exhaust! You can get a F.I. truck to run just as powerful as a carbed vehicle, plus with f.i. you can run upside down if you had a oil pump that could run upside down that is!!

 

Yea thats the only thing thats keeping me from doing it. We are moving down to tennessee and i want this bronco to be able to climb some steep mountain grades on some trails. I know with a carb thats not going to happen unless i spend some money for the Holley Truck carb.

 

Yeah, but be prepared to spend almost double to get the same power output and a lot of time tuning to get it to run right.

 

With elevation changes F.I. has got carbs beat!! For performance you need to swap to mass air to handle the big upgrades. Not too expensive really if you do it right Junkyard comp., mass air sensor and overlay harness.

 

Fair enough for the mass air, but what about intake ($600 for EFI, $200 carb), throttle bodies that run just as much as a carb, fuel injectors for another $300, bigger volume fuel pump to handle the more power, most likely larger lines to the fuel rail, and the list goes on. Thats only the fuel delivery portion of the motor. There is still all the hard parts like heads, cams and bottum end (which would be the same cost carb or efi). Plus to get it all to run properly after, an aftermarket chip and some time on a chassis dyno should be spent tuning. Carbs are cheaper, and when it comes to wheelin, follow the KISS rule. Keep It Simple Stupid.

 

There is always ebay and junkyards, mustang intakes, and the stock injectors and fuel system is good to up around 300 some horsepower!! Plus the angle if you stall out with a carb and roll it into a tree there goes your cost differential!! Are you saying since your 92 is F.i. you won't take it wheeling because it is too complicated? There are plus and minus to both systems, The main one down here if you remove any emissions related components it is a federal crime thing, Not that people I know or myself have not removed some Parts, but it is something to think about, should just buy a pre 85 if you want to go carb!!

 

I just dont want to break the bank before i get to put a lift and tires on it. Thats why i thought about going to carb. I can get a carb and intake system for about the same is the fuel injection intake. The throttle bodys are way to expensive for my liking. My goal is to make over 300 hp so i already had injectors in mind but they are around 250 to 300 bucks. The fuel injection is nice, but very expensive to mod. The money it would take to do anything performance wise to this truck wouldnt be worth it.

 

That's complete nonsense. The stock computer will handle a cam upgrade no problem, you just got to pick one with 114 deg LSA or greater. A cam combined with a complete exhaust system will really wake the motor up, no extra costs involved besides the gasket kit needed for the cam swap.

 

This is all true blue beast, and actually I am having fun with this debate. Dont take anything that I am saying as bad or anything. Especially that KISS thing, its just something the old guy that tought me almost everything I know used to say. I have taken my 92 wheelin, and it does pretty good. I have taken my bronco wheelin a hell of a lot more and done alot of trail fixes to get me home. My 92 is junkyard built and it does ok, but the one thing that pisses me off is the motor and how I am constantly trying to get it to run right, and by run right i mean consistantly perfect-ish. I am also at the point with it where the next step in gaining performance is going to cost upwards of $4000. The mustang intakes work good for mid range power, but not the low end torque and horsepower that is more useful to a truck, also a wheelin truck. Junkyard parts are what they are, junkyard parts. Especially when it comes to old electronics and such it is hard to tell what you have without installing it and then you can't return it if it is faulty. EFI is a wonderful system when done right, but for the cost and time to get to work right a carb is the most economical solution. That and with the advancement in carbs thanks to the rock crawling crowd have come along with with stall angles and such.

 

My 88 is totally old school. I swapped the efi for a 2150 2barrel carb, a bypass regulator, and pionts and condenser distributor. Wired the coil and fuel pump to a toggle switch. Lost the aod for a np435 and np208 trans case. It has plenty of power, gets about 15-16 mixed mpg and with the np435 I run it as A 3 speed but still have a super low pulling gear when I need it. But with any luck it will get a heart transplant next summer to a 6.9 or 7.3 idi diesel along with the running gears from what ever donor truck I find. Then we will talk about power!!!

 

A lot of those rock crawlers are running propane too aren't they? So you don't have angle running problems, I bet half are using throttle body injection though!! 19lb hr are good up to 300+ hp, The king you need to check out ford fuel injection read his whole website and then reread it!! http://fordfuelinjection.com/?p=9 Intakes are intakes junkyard ones are not as shiny but work!! I think king has a bad one and needs a new one, because of a bad thermostat issue!!

 

Kenpo you need to go to a heavy equipment junkyard to get your diesel!! They have plenty of diesels so they aren't like gold like at a regular junkyard. And usually they are not as beat as a pickup truck motor. Kawasaki loaders have cummins or isuzu motors, Actually the same cummins the dodge trucks use! You just need to change the manifold unless you want the exhaust coming through the HOOD!! I forget what size motors track hoes use!! There's proof in the pudding right there for fuel injection DIESEL!! I