Fuel Injection for 330GT V-12?

I can be done but won't be cheap. Webers replaced by TWM or Jenvey throttle bodies. EFI pump and lines, an ECU, tuning, etc.

 

I've been a 330 owner for 40+ years, there is a kit to replace the points with an electronic ignition system. I never heard of a kit to replace the 3 Weber carbs with fuel injection. The 330 P racing cars had fuel injection, so some design work does exist, but it's questionable if this would work on a road car. If you want fuel injection you would have to do all the prototype work yourself at considerable expense.

 

There's no reason why it couldn't go cross country on carbs. Sure efi is more adaptable in terms of temp and elevation but has it's own set of complexities that could also leave you stranded.

 

In hot weather I always turn on the electric fuel pump. It helps somewhat. At moderate speeds the engine compartment gets quite hot reducing the performance of the mechanical fuel pump. Your concern might be more of a fuel supply problem than a carb problem.

 

Carbs are NOT a reliability issue unless the owner insists on fiddling with them after they are properly set up. The issue of possible vapor lock with extreme heat can be dealt with using the starting electric pump. Conversion to electronic ignition has been around for years and should be relatively inexpensive and reliable.

 

As previously suggested, I strongly agree your problem sounds like a fuel delivery issue. Even though my mechanical pump is functional I continually run the electric pump in all conditions. I run a separately switched modern pump in line with the original click click click Fispa,

Kudos to your desire to drive cross country, I want to do that too, so does my car!

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If your objective is to convert it into a car with 21st Century driveability, you will likely be disappointed. Add-on fuel injection, isn't the same as the engine-management system that cars have now. Electronic ignition can easily be done, and is recommended. Beyond that, properly functioning carburettors and fuel pump(s) can be quite trouble free. The issue is commonly finding someone that remembers how to make them work right, and using quality rebuild kits. Some of the parts available are of questionable quality. Don't ignore the rest of the systems either. Charging and cooling systems are important contributors to reliability and are just as likely to leave you stranded somewhere as a flooding carb or failed fuel pump.
I'll give you the same disclaimer that I give new clients: "Don't confuse an old Italian car with transportation". That said, a cross-country trip like you are proposing will be something you'll remember always. Hopefully, for the good times.

 

If you think the mechanical fuel pump is lacking performance, you should look at the stroke of the push rod to ensure full stroke is being achieved since many of these early cars had slightly different setups and spacer blocks for the fuel pump.

Other aspects are to check fuel pressure before the carbs to ensure you have 3-4 PSI. I think 5 is max for Webers.

 

I would take a look at the one way check valves in the pump as well.

 

For my 330 the FISPA fuel pump was rebuilt with the FAF rebuild kit - all new check valves, new diaphragm, and the original spacer block. All the FAF parts were identical to the OEM pieces. The FAF kit is no longer available, and I don't know if another kit is available today. I really don't think the mechanical pump is the issue as I don't have any problems driving in cool weather. This is why I believe a hot engine compartment negatively affects the mechanical fuel pump and its associated fuel lines. The electric fuel pump feeds the carbs from the firewall with only a short fuel line in the engine compartment.

 

Maybe think about a fuel by-pass system? Over feed the carbs with a bigger electric pump, fuel pressure regulator and return line back to fuel tank.

 

My 330 does have a return fuel line. The FISPA fuel filter is also a pressure regulator. It seems Ferrari did try to adress all the potential problems with a hot engine compartment. As discussed above, hot weather does cause problems if the electric fuel pump is not used.

 

I found this pictures years ago. I think, here on f-chat.

I sureley would be interesting to put an EFI on an old Ferrari, but in my opinion, the craburettors are a must for the correct feeling.

Be sure to get the carbs adjusted correctly by someone who really knows, what he does. It can transform a car significantly. Also, get the ignition checked and put in good spark plugs. I have the experience, that the old Ferrari suggestions are to cold. Others might give you some suggestions, as I can´t give them for a 330.
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Instead of spending $20,000+ putting fuel injection on the engine, why don't you get a competent mechanic who is familiar with Ferrari's to sort the car out. Its got to be a lot cheaper to sort out the fuel system then reengineer it. I do this stuff all the time, just my 2 cents.

 

Have the carbs been cleaned and adjusted correctly (float height, jets, fuel pressure, accelerator pump diaphragms, etc)?

 

To wrap up this thread, the electronic ignition kit is PerTronix MR-1122A. For everyday driving, the next hotter spark plug Champion N-7Y (RN-7Y) is a better option.

 

To wrap up this thread, the electronic ignition kit is PerTronix MR-1122A. For everyday driving, the next hotter spark plug Champion N-7Y (RN-7Y) is a better option. Several companies have the rebuild kit for the FISPA SUP 150 mechanical fuel pump. When Ferrari upgraded the 330 GTC to the 365 GTC, they replaced the mechanical fuel pump with 2 electric fuel pumps. It seems they became awrare that the hot engine compartment had a negative effect on the mechanical pump.

 

Out of curiosity where were the 2 electric pumps? One in tank and one in line?

 

246,Daytona , same set up
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Yes, the 365 update to the 330 GTC operating manual states 2 Bendix pumps are installed in the rear of the car and the "diaphragm" pump is eliminated.