carb to tbi converstion?

[Poohbair]

what other options do i have for around 300 bucks that i can do out of a gravel lot and the help of a freind i dont know how to do propane injection nor do i know how to convert to a complete fi system i get the bolt on tbi system for 300 bucks and i gotta belive it is better than running a carb! i am not the best with runnabilty but if there is other option for cheap that are easy please share.. i am new to this and would like to learn!

Propane will cost you a bit more, but is WAYYYYYYY easier to install, and if you shop around, watch EBAY and Craigslist you may be able to find a good deal on it....

If your engine is modified at all, it will never run right on TBI without a custom chip. TBI is not very forgiving for mods.

 

[Binder]

Well, my TBI is on my tow rig... so it never sees off camber, hill climbs, etc... and the tunability for a TBI is very limited...

And after dealing with Ford MAF injection, TBI is a shitty system...

You're way off here. GM TBI is by far the most tunable system there is. You can't say that about the ford systems. There are a couple reasons the 454 doesn't make power. First is the "TBI" engines weren't designed to make big power. The heads/ cam/ intake etc are crap. To make it worse the factory tuning is very tame.....It's not the system that's the problem.
Just saying.

 

[97f250]

well the kit has a ecu that is programed for it(figures crossed i dont have to mess with it at all) and a dist and fuel pump and regluator for it all in the same kit and it is a stock motor with a edelbrock intake is all that is done.. the problem with the propane kits i dont like is setting every thing up right knowing me i would find a way to blow the truck up.. i lite it on fire pretty good a few time with the carb battel i fought for the last few weeks.. so if i had propane doing that it could be a good mess.. did find a few propane kits that where for tbi but not much for carbed

 

[Binder]

well the kit has a ecu that is programed for it(figures crossed i dont have to mess with it at all)

Wana bet?:haha:

 

[97f250]

have hope man! i know it is going to be a battle no matter what way i go but i gotta belive that tbi is better than carb! right? what do you gotta do to the ecu to get tham right

 

[Poohbair]

GM TBI is by far the most tunable system there is.

Are you ****ing insane?


If you are "right"... then the difference is that w/ a GOOD Ford MAF system, you don't have to "TUNE" it... it does it by itself.....

 

[Binder]

Are you ****ing insane?


If you are "right"... then the difference is that w/ a GOOD Ford MAF system, you don't have to "TUNE" it... it does it by itself.....

There isn't a fully self tuning EFI system on the face of the planet. What many people don't understand is all of these systems work on the same principals with some specific differences. The Ford system works the same as the GM system works the same as the Volvo-Toyota-...... If you installed a system on a modified engine and it didn't require and tuning then you got lucky. And just because it didn't have to be tuned doesn't mean it's tuned to peak performance.
Tuning these systems is all relative to how much work someone has put into hacking the factory code. The GM TBI system has been hacked by far much further than any other therefore it IS the most tunable. Doesn't make it easy to tune though.What is it that you think a carb can do that TBI can't? What is it that you think a Ford MAF system can do that a GM MAF can't?:corn:

 

[Binder]

have hope man! i know it is going to be a battle no matter what way i go but i gotta belive that tbi is better than carb! right? what do you gotta do to the ecu to get tham right

"Better" is really relative to how easy it is to make it work for you. Most people think that "tuning" is giving a engine more fuel to make it go faster. The opposite is true. The engine needs a specific amount of fuel and SPARK at the right time to make it run right. Tuning is finding the combination that the engine needs to make it perform. I capitalized SPARK because it's the other half of tuning that is often overlooked. Taking TBI off a engine and installing a carb does away with the computer controlled ignition which is 1000 times superior to a vac advance distributor.
Not saying a carb and vac dist doesn't have it's place but it's a step in the wrong direction usually.

 

[Binder]

Here's another interesting thread from a guy who bought a "self tuning" system.

 

[Poohbair]

I am not saying that a Ford MAF system is "self tuning"...

I am saying that a Ford MAF system is WAYYYYYYY more toleralbe to engine mods than a GM TBI system...

Take a stock GM TBI system, throw a cam in it... it doesn't know what to do.. the computer is corn-fused... and they wont run right...

With a Ford MAF system, you can pretty much do whatever you want and the computer doesn't care until you get to a point where the mass air flow and injectors can't keep up w/ the demand... then you just buy bigger injectors, and a bigger MAF and still don't have to **** with the computer.


Either way, it all depends on what you want to do with the rig...

If its a tow rig, leave it carbed, and have it tuned right.

If its a wheelin' rig, it depends on what you have, and how much power you want?

 

[97f250]

that is a bad ass set he got on that thing! and alot over kill for what ia ma looking for i hear half anf half her but what it looks like to me is if it is a stock motor and your just looking for a reliable system the diy plug and play tbi system will work but if you want anything above and beyond dont go with it! and it sounds like people either love it or hate it.. but i know the system i got on ther sucks alot so for the price i wanna try this

 

[Binder]

you don't have to "TUNE" it... it does it by itself.....

I am not saying that a Ford MAF system is "self tuning"...

As a matter of fact that is what you said.

I am saying that a Ford MAF system is WAYYYYYYY more toleralbe to engine mods than a GM TBI system...

Take a stock GM TBI system, throw a cam in it... it doesn't know what to do.. the computer is corn-fused... and they wont run right...

With a Ford MAF system, you can pretty much do whatever you want and the computer doesn't care until you get to a point where the mass air flow and injectors can't keep up w/ the demand... then you just buy bigger injectors, and a bigger MAF and still don't have to **** with the computer.


Either way, it all depends on what you want to do with the rig...

If its a tow rig, leave it carbed, and have it tuned right.

If its a wheelin' rig, it depends on what you have, and how much power you want?

There's nothing special about a "Ford" MAF system. MAF systems in general are SLIGHTLY more tolerable to mods than MAP systems. GM "TBI" comes in MAF and in MAP just like the Ford EEC IV does.
And you've been mislead by a long ways. Do some research and you'll find plenty of people who thought the same and have been disapointed.

 

[Binder]

that is a bad ass set he got on that thing! and alot over kill for what ia ma looking for i hear half anf half her but what it looks like to me is if it is a stock motor and your just looking for a reliable system the diy plug and play tbi system will work but if you want anything above and beyond dont go with it!

Sory to get off track in your thread.:redneck: Technically any sytem will require adjustments at even the slightest change. A different air filter would change air flow numbers but you would never notice the difference. The bigger the change the bigger the difference in how it runs. :beer:

 

[crash2]

It boils down to what you want from the system. Every non factory produced system except one I have had nothing but problems with unconsistant drivabilty characteristcs(and these were properly setup systems from analog to digital).

If you want simplistic then the TBI system is by far the one to go with.

If you don't mind a more complicated system that will give you better performace and gas milage--then there are other systems out there.

Myself for a trail rig you simply cannot beat a good old GM factory setup TBI system.

 

[Binder]

It boils down to what you want from the system. Every non factory produced system except one I have had nothing but problems with unconsistant drivabilty characteristcs(and these were properly setup systems from analog to digital).

If you want simplistic then the TBI system is by far the one to go with.

If you don't mind a more complicated system that will give you better performace and gas milage--then there are other systems out there.

Myself for a trail rig you simply cannot beat a good old GM factory setup TBI system.

There's definately more than one system out there. To each their own.:beer:

 

[Poohbair]

As a matter of fact that is what you said.

Yup.. I drank a bit of beer yesterday... :awesomework:



Just get a custom chip burned for your engines specs w/ TBI and it will run fine.

 

[JOOP]

I have a GM TBI system on my jeep. It has worked flawlessly and is very tuneable if I were to spend the time and actually do it.

 

[Binder]

So tell us what came in the kit?

 

[dirtygoat]

If you want simplistic then the TBI system is by far the one to go with.

Propane is the most simplistic... Plug and play... My 14 and 11 year old boys can install it and make it run in an hour...

I've only messed with one PJ kit a buddy of mine has and it took a bit for him to get it right... He picked it up used, so that may have played a little part... But it wasn't even close to how easy the propane on mine was...

 

[97f250]

So tell us what came in the kit?

so far it been full of duck farts! still dont have it and got the money burnign a hole in my wallet! tomorrow is always a day away!