V-8 Engine swap?

[rusty ol ranger]

EGR and carbs is problematic too. Cats don't live as long behind a carbed engine, but neither cause major issues with EFI.

Another great thing about carbs. Being able to remove malfunctioning emission eqiupment without having to spend big bucks to replace. Without having to figure out a way around the computer

Score another for carbs.

 

[Uncle Gump]

Rusty... i see you in these old school vs. new school debates and I admire your convictions. I am a carb believer too. However... my carb applications are build specific for a purpose. A big block jeep and a 23T altered dragster both on scoops. These find their way to the staging lanes and live life from there at WOT. There is also a ported 13b Mazda rotary with a 48 IDA Weber and several air cooled VW trail buggies with various sizes of either Weber or Dellorto dual carbs. I have a fishing tackle box full of spare accel pumps, gaskets, linkage parts and a couple Plano 3600 boxes full of idle and main jets to keep these things running optimal air fuel ratios based on outside temps.

I think you have a point with carbs being simpler... not much you can't fix with a couple wrenches and two screwdrivers.

When your EFI fuel system has a problem... you better get out a book, scan tool, DMM, fuel pressure gauge, noid light and have a pretty fair understanding of how things work. Not nearly as simple.

At the end of the day... no question in my mind... EFI out performs a carb in every way imaginable... except for simplicity.

 

[rusty ol ranger]

Everyone says EFI outperforms carbs. I just dont see it.

An EFI engine runs cleaner, but thats it. Also, ill give alititude changes to EFI. Past that, IMO, its a wash.

Its to each their own.

 

[Uncle Gump]

I'm not trying to change your mind... You and I could talk about carbs all day long.

You like what you like...

 

[baddad457]

Everyone says EFI outperforms carbs. I just dont see it.

An EFI engine runs cleaner, but thats it. Also, ill give alititude changes to EFI. Past that, IMO, its a wash.

Its to each their own.

You're right, altitude changes are the only place EFI outdoes a carb. I've been fighting a problem in my 96 E150 now for 6 months, ever since I regeared h the 8.8 in it from 3.55 to 4.10. You stomp the go pedal and it spits, sputters and backfires till you ease off the pedal. I've replaced everything now but the M/A sensor and the IAT sensor in an effort to fix this. With a carbed engine it would have taken an hour at most to find and fix it. But I'm with the others, with a 2002, the most sensible swap would be a 'Sploder 5.0 here.

 

[RonD]

Everyone says EFI outperforms carbs. I just dont see it.

An EFI engine runs cleaner, but thats it. Also, ill give alititude changes to EFI. Past that, IMO, its a wash.

Its to each their own.

A carb coats the whole inside of the intake with air/fuel mix, and that's lost thru evaporation when engine is shut off, ain't much but ain't 0 either
Fuel injector just coats head's intake port, so maybe 10% loss versus 100% loss.

A carb uses vacuum/air flow passed the jets to meter fuel, so when you decelerate, high vacuum, fuel is sucked in(idler jets) but does nothing.
(common practice with carb engines was to shift to Neutral while coasting down a long grade, so just use idle level fuel)

Fuel injection computers shut off fuel injectors when decelerating, so better to leave them in gear while coasting down hill, no fuel use.
(computer does add fuel now and then while decelerating to keep Cats Hot)

Yes, fuel injection is more adaptive to altitude AND Temperature so better running and fuel savings if you live in an area with larger temperature swings between winter and summer and also if you take trips that require higher and lower elevation driving.

And yes, lower emissions simply because they are more efficient in air/fuel mix and use.

Can you tune a carb to make more power than fuel injection, no, not if you tune the fuel injection as well, apples to apples, use a screwdriver or a computer

Can you tune a carb to get better MPG than fuel injection, no, the above mentioned things prevent that.

So no real debate on which is "better", but what you LIKE to use is a personal choice, and in that respect some LIKE carbs better