i am doin a custom turbo this summer an i was thinkin bout goin to carbed as well. ihave been told however that it is not a good idea to have this combination. why is that? am i going to get more fuel through fuel injection or carbed?

 

good luck with the project. you either have to have a carb built to handle boost or you will blow air out around linkage,... or you have to have a carb bowl or dish or what ever they are called. the carb will have to be completey inside of something.

 

:werd:

It'll take a special carb to be able to do the job. IMO it would be better to stay fuel injected, just my own opinion from my research. Either way it's going to be a difficult task and take a lot of work.

 

take a look at the late 2nd gen Turbo T/A setup. It might give you some ideas.

And yes, you should have a carb specifically for forced induction applications in order to get the most out of that set up.

edit: also teh early T-Types & Grand Nationals too

 

Well turboing a car isn't ideal, since its alot tougher to tune for varying boost levels and throttle input vs. a computer. But it is done, there are 2 ways - suck through and blow through. IE turbo behind the carb or in front of the carb. Most of the one's I've seen are blow through.

 

i did some research away back. Turns out you have to tap into the fuel pump and install an injector into the air duct. The injector will only cut on when under boost.

More info can be found here.

http://www.toohighpsi.com/BudgetTT/tthowto.htm

He did a twin turbo on a carbed 351. But its the same idea

 

That's a workaround for poor carburetor tuning/sizing. But it also illustrates why EFI is reccomended for turbocharging.. with EFI, you can simply reprogram the ECU to add additional fuel where needed.