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superchargeing 12a posibly

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Old 02-16-10, 06:05 PM
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superchargeing 12a posibly

i might be picking up an fb, i thinnk id like to supercharge, i had an 88 before but now in interested in the fb. im just wondering if the fb is computer controlled or is it just caruerated controlled any info would be great!
Old 02-16-10, 06:14 PM
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All 12As in the U.S. came carbed.
Old 02-16-10, 07:32 PM
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i know that that not my question.some cars that are carbuerated dont have a computer, im just wondering if the 1st gen ar computer controlled or not and if i was to supercharger one would i have to get some kind of computer or something?
Old 02-16-10, 07:48 PM
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nope, not computer controlled. and as for the supercahrger, look up camden superchargers.
rotary specific, and made to use a holley
Old 02-16-10, 08:00 PM
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how much horsepower can the stock 12a handle?
Old 02-16-10, 08:24 PM
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Originally Posted by dkaszak88
how much horsepower can the stock 12a handle?
800 billion, give or take a little torque.
Old 02-16-10, 08:49 PM
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Originally Posted by dkaszak88
i know that that not my question.some cars that are carbuerated dont have a computer, im just wondering if the 1st gen ar computer controlled or not and if i was to supercharger one would i have to get some kind of computer or something?
Are you talking about an ECU? ECUs are for fuel injection. Carbureted engines don't have or need ECUs, fuel is metered by the carburetor mechanically. Man, no offense, but you need to do some serious research before you'll be ready for a project like this.
Old 02-16-10, 09:10 PM
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Originally Posted by PercentSevenC
Are you talking about an ECU? ECUs are for fuel injection. Carbureted engines don't have or need ECUs, fuel is metered by the carburetor mechanically. Man, no offense, but you need to do some serious research before you'll be ready for a project like this.
just so u know there is a such thing as computer controlled carburetors. look it up.
Old 02-16-10, 09:32 PM
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Originally Posted by PercentSevenC
Are you talking about an ECU? ECUs are for fuel injection. Carbureted engines don't have or need ECUs, fuel is metered by the carburetor mechanically. Man, no offense, but you need to do some serious research before you'll be ready for a project like this.
First off, If you want to go with a supercharger. ur best bet is to stay with a carbed one.
Once you get into FI your gonna need a EMS, huge fuel pump. heat sheilds, and the list goes on. and believe me i speak from experience.
Old 02-16-10, 09:34 PM
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Carburetors are mechanical in their fuel metering. That means that they are not gonna change how much fuel they deliver no matter what you do to the computer.

Last edited by theNeanderthol; 02-16-10 at 09:45 PM. Reason: Thread was moved, my comment as no longer appropriate for new member section
Old 02-16-10, 09:53 PM
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Originally Posted by theNeanderthol
Dude, everyone here has been pretty nice and patient in answering your questions. And frankly they are questions that could have been answered by you reading the FAQ section of this website. People here get kinda pissed off when new members come in and ask questions that have been answered 10 times over, and could be answered yourself.

If you are not gonna listen to these very intelligent and prominent members of our forum, you are gonna get flamed to no end.

Carburetors are mechanical in their fuel metering. That means that they are not gonna change how much fuel they deliver no matter what you do to the computer.

This is probably the last nice-spirited post you are gonna get in this thread if you keep up that attitude. Not a threat by me, just a heads up.
i wasnt trying to be rude at all and ifi came off tht way i appologize. but there really are cars that came with electronic compute controlled carburetors. in the 80s and they make aftermarket carburetors for trucks for off roading and stuff
Old 02-22-10, 08:26 AM
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There are cars with carburetors that have a computer feedback system; the first gen RX-7 is one of them.

The computer will take inputs from various sensors and control vacuum solenoids. It's mainly for emissions purposes. Any modification to the computer would not affect the carburetor itself. The computer does not control fuel delivery.
Old 02-22-10, 10:57 AM
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^ Finally, someone with some sense.

The carb'ed RX-7s do have an ECU, for primarily emissions reasons. It controls ignition cut, the solenoids and a few other little things.

That said, the ECU is basically irrelevant for modification. It can be eliminated very easily and won't freak out under boost (it has no way of even knowing the engine is running under boost).

And for the record, MANY carbureted cars came with ECUs for emissions purposes. Some even had O2 sensors and closed loop...
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