Carby vs efi for cost effectivness long term?

riverrat321 · 04-02-2005, 01:45 AM

Hey again. Got another question i've been thinking about. Whats more cost effective long term, efi or carby? I know efi will usually use less fuel and have greater performance but if things go wrong isn't it more complex and expensive? My old EF Falcon had the computer die and it cost over 500 for a replacement. Do efi cars often have problems? Thanks again...

Walkinshaw · 04-02-2005, 10:12 AM

EFI will usualy have cheaper running and repair costs, as the parts tend to last as long, if not longer than carburettor componants. Initial cost of EFI is defintaly much greater than Carburettor.

Sourbastard · 04-02-2005, 10:21 AM

yeah but a 1250cfm dominator carbie just looks cool. I miss the bad old days.

mcflux · 04-02-2005, 10:43 AM

Quote:

Originally Posted by sourbastard

yeah but a 1250cfm dominator carbie just looks cool. I miss the bad old days.

LOL I know of a guy who put one on his 253-"powered" HZ. It ran like shit (no surprises here!) - *EDIT* thumbnail removed coz I need the space elsewhere :thebirds:

Sorry bout being off-topic

-Dave-

Racecraft · 04-02-2005, 10:50 AM

DEpends on what car you intend to put it on.. IIRC you cannot remove an EFI set-up and replace it with carby as it will no longer meet emissions...

Think of it like this, EFI sprays a mist of fuel as the engine requires it, carbies dump in a bucket of fuel weather you need it or not.

But I love the simplisity of a carby, a couple of jets and check the float level and away you go..hehe

Sourbastard · 04-02-2005, 10:58 AM

Quote:

Originally Posted by Ghia5L

LOL I know of a guy who put one on his 253-"powered" HZ. It ran like shit (no surprises here!) - thumbnail attached

Sorry bout being off-topic

-Dave-

LOL thats just misguided.

Smoked · 04-02-2005, 01:30 PM

Quote:

Originally Posted by Racecraft

Think of it like this, EFI sprays a mist of fuel as the engine requires it, carbies dump in a bucket of fuel weather you need it or not.

Dumps fuel ay, dont think its that ineffiecient. Its not brilliant, but correctly tuned, it aint that bad.

Walkinshaw · 04-02-2005, 06:42 PM

lol @ 1250 dominator on 253. Ive heard storys of 2x650vac2nd Holleys on a tunnel ramed 253. Joke. A 500 square bore is plenty for a warm/hot 253. 1250dominator is big block, or INSANE N/A or blown small block terriroty.

Steffo · 04-02-2005, 07:44 PM

Quote:

Originally Posted by riverrat321

Hey again. Got another question i've been thinking about. Whats more cost effective long term, efi or carby? I know efi will usually use less fuel and have greater performance but if things go wrong isn't it more complex and expensive? My old EF Falcon had the computer die and it cost over 500 for a replacement. Do efi cars often have problems? Thanks again...

Initially, EFI is more expensive to set-up then carb (though in some ultra high performance application.. with $1200+ carbs.. using two of those.. the costs are far less apart from each other). However, EFI is more efficient in every way, shape and form. You can make superior power, have superior fuel economy, whatever you desire really. I would have thought that the carburettor would have gone extinct long ago, considering how inefficient and well... crap it is, compared to EFI.

merlin · 04-02-2005, 09:08 PM

Do any new cars still come with carbs? I think the base model Mirage is still carb?

Steffo · 04-02-2005, 10:13 PM

Ford Econovan and Econovan Maxi came with carb 4cyl engines until 2003. In 2004 they received EFI versions of the same engines. Nothing else I know of comes carb now.

buickman · 04-02-2005, 10:37 PM

Whats the cheapo Mitsibishi express van have.

buickman

Sourbastard · 04-02-2005, 10:45 PM

Quote:

Originally Posted by buickman

Whats the cheapo Mitsibishi express van have.

buickman

in most cases, rust.

Steffo · 04-02-2005, 10:53 PM

Quote:

Originally Posted by buickman

Whats the cheapo Mitsibishi express van have.

buickman

The old bodyshape Express... which was late 80s and all the 1990s.. was carb 4cyl. Not sure about the new shape one.

LUXO_8 · 04-02-2005, 11:47 PM

almost certain you wont find a car available today in australia with a carb.
drum brakes however..........

riverrat321 · 05-02-2005, 12:18 AM

The newest car I ever owned has been 10 yrs old so i'm looking more at older cars anyway. I'm poverty stricken at the moment...

THORNSPAWN · 05-02-2005, 01:54 AM

Ford Dedicated LPG I6 has a gas carby not the same as petrol carby but still a carby :P

brenx · 05-02-2005, 12:15 PM

I know of an EFI cleveland same spec as my old setup that actually did 10rwkw less than me. The main difference was due to the way the fuel was metered it had a broader torque curve and idled nicer. Thats the only difference. Couldn't compare fuel econ as he had a 5 speed manual. Mine being 3 spd auto.

Main reason I'd never select EFI is I change stuff too much. EFI costs to much to change parameters, injectors, pumps etc.

That same EFI clevo has more cam (hyd roller cam) than me now with the 185cc version of my heads. Last I head he was still 29rwkw down on me yet I still run the same camshaft.

Brenden

Philbie · 05-02-2005, 12:30 PM

Carb was fun in the days of nothing else, - but like all things today - time to move on and play with other areas instead

smciner1 · 08-02-2005, 08:10 PM

/me points to the Air / Fuel Ratios observed at the AU Falcon.com Dyno Day.............

:hihi: