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Author
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Topic: carburated vs fuel injected
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notch306
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Member # 12061
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posted
 
 
Whats the advantages and disadvantage. Which gives out more power jus wondering
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86 notch
Posts: 218 | From: Fresno ca | Registered: Jun 2012
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SteveL
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Member # 1241
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posted
In general, a well tuned mass air setup could make more power.
An engine doesn't know and doesn't care whether a carb supplies the fuel or fuel injectors supply the fuel. What matters is how much fuel the engine gets depending on rpms and load. A properly set up mass air system does a better job at providing the right amount of fuel because it takes into account air temperature and density. A carb does not.
Certainly you can set up a carb to provide the right amount of fuel but to match the accuracy of a mass air setup you constantly need to redo the setup. During the winter with cold denser air, increase the jet size so the engine doesn't go lean. During the hot summer, reduce the jet size to make more power. A trip to Tahoe at 6-7000 feet with thinner air, reduce the jet size.
[ July 12, 2012, 06:40 PM: Message edited by: SteveL ]
Posts: 578 | From: San Jose, CA | Registered: May 2002
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Wolfie351
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Member # 651
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posted
EFI is definitely more efficient as stated above, but with all other things being equal, a single plane or Performer RPM manifold will give you more peak hp than most street EFI manifolds. Carbs are also soooo easy and you never have to worry about having the right fuel lines, pump, injectors, MAF, etc. With that said though, I don't think there are many good reason to switch from EFI to a carb. But, I also don't think it's worth the effort to switch from a carb to EFI unless you plan on adding a blower or turbo.
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1985 Mustang GT: 351W, Griggs, Baer, etc etc
Posts: 1214 | From: South Bay | Registered: Dec 2001
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