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i have fuel injection on my car, and was considering converting it to a carb. what modifications would i need to do? do i have to install the mechanical fuel pump? its a chevy.

2007-08-15 17:00:21 · 7 answers · asked by Anonymous in Cars & Transportation Maintenance & Repairs

7 answers

You could get a new electric fuel pump for carbs instead of the mechanical pump, but I would think a cheaper, less intense route would be to use your current fuel pump with a pressure regulator in the line. Your current heads should work, but you will have to find an intake manifold that will bolt up to them. In the Gen I engines, that should be pretty easy to do, all the bolts will match up. The heads used the same castings from carbarated versions. If it's a vortec, however, the bolt patterns on a typical intake won't match the bolt pattern on the heads. They make intakes with the Vortec bolt pattern, but it probably won't be something laying around the garage. I know GM Performance sells them, and probably Edelbrock, and Holley.

2007-08-15 18:51:29 · answer #1 · answered by civitas104 2 · 1 0

With a carburetor you need 5 to 7 psi fuel pressure. All EFI systems have way too much pressure. You can install an electric pump made for carburetors with the correct fuel pressure so no need for a mechanical pump.

Be safe and wire the pump with a fuel cutoff when the engine dies and the oil pressure drops.

2007-08-15 17:10:44 · answer #2 · answered by beth 6 · 1 0

The fuel pump is an essential component of any vehicle with an internal combustion engine, principally, cars and trucks. With the job of forcing fuel from the gas tank towards the engine, a malfunctioning fuel pump will create a situation where the engine either gets too much or too little fuel due to too much or too little pressure in the line traveling from the tank to the engine. This will lead to performance issues with the car or truck itself.

In the most basic sense, in order for an engine to run properly, fuel in the form of liquid gasoline needs to travel from the tank where it is stored to the engine where it is burned to create power and propel the vehicle. Some smaller, more concisely constructed vehicles, such as certain models of motorcycles,, do not require a fuel pump because gravity takes care of this job. However, this is not the case for most internal combustion engined vehicles. Instead, they utilize either a mechanical or electronic fuel pump.

It will be more helpful for you visit the link and know more about this:

http://largearticle.com/knowing-about-electric-fuel-pumps/

2015-11-11 22:18:36 · answer #3 · answered by Prince 2 · 1 0

get an aftermarket electric fuel pump. no need for a mechanical fuel pump.

2007-08-15 17:05:41 · answer #4 · answered by Michelle 2 · 0 0

um thats pretty impossible you would have to get an entirely different type of head on the motor and they are a ***** to install + if you know what your doing you can get way more preformance out of fuel injection then carbs

2007-08-15 17:06:45 · answer #5 · answered by j t 3 · 0 1

Yes, you can. You can check online,from yer favorite parts supplyer, for a low pressure return. Carbs. like about 3 - 5 psi.

2007-08-15 17:07:58 · answer #6 · answered by Anonymous · 0 0

I don't think it would be a cost effective switch and I would imagine you would have to replace everything evcept the block assembly, including all electrical.

2007-08-15 17:41:18 · answer #7 · answered by tronary 7 · 0 0

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