EFI vs NA $?

[RacerX]

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[Guest Anonymous]

My brain power and electrical abilities is limited to Carburators. I agree fuel injection is superior.I am trying about every kind of modification posted on this site which is delaying my project.I cannot afford to adopt fuel injection or even get interested in it. Tim 240 Z had some electrical posts that really stirred my imagination and bolstered my confidence but....Fuel Injection would delay my project 10 years. LOL Besides I got some carpet to DYE and collect some rent. Thanx to Racer X

[Lockjaw]

What kind of engine?

 

Nissan six is easy to fuel inject. Just depends how you want to go about it.

 

Fuel injection is the way to go if you can swing it.

[Guest Anonymous]

Ernie, no disrespect meant to that shop, but if it took them 10 months, then they had some serious problems or glitches (also being in a magazine doesn't necessarily mean your all that, it can mean your friends with a magazine bud or are helping to subsidise they're mag with advertising from your shop). It shouldn't take that long nor cost that much to put EFI on a V8. I know it for fact. The most expensive part if the computer, if you go aftermarket the computer will run you a g + (holley computer is about a grand or less). If you buy everything in kit form, yeah it'll be expensive, if you convert a single plane manifold and use a ford type throttle body with a holley computer it'll be under 2k and the tuning shouldn't be that bad. (I'll be using a LT1 type computer with LT1 edit and getting by way under 2k I can tell you that)

The biggest problem with most tuning chores for EFI is that people run either very large injectors giving fits to idling, or to large of a cam or they're boosting or doing something out of the ordinary. The problem with tuning EFI is if anything theres so much that can be changed, and if you do it wrong, well it can really be a mess.

Just an opinion of course, but 10 months seems excessive to me (I hope so if it takes me that long, I know I'll be inventing curse words).

 

Regards,

 

Lone

[johnc]

I agree with Lone. Unless someone was doing some major R&D on a unique EFI/Engine Managment system, 10 months is out of line. The basic Bosch EFI system has been around since 1968 when D-Jetronic was introduced. Its not rocket science anymore (and wasn't back then.)

[Guest greimann]

I originally switched from a carb to a Holley programmable TBI because of heat related fuel problems. Even with that original, primitive laptop programmable system, I have been sold on EFI. The new Holley TBI systems are about $1400 and have much better software than my older version. It does involve a learning curve and a lot of patience, but once you get it running, the ability to fine tune the fuel and spark curve without popping the hood is very nice and gives you a level of adjustability that is impossible to achieve with conventional hardware. If you want to dip into the EFI pool, go Holley TBI and you can use your same 4 barrel manifold.

 

Also with these systems you can datalog as you drive. Tuning and trouble shooting the system from your desk at home. That feature alone is worth the price of the system.

[Lockjaw]

Sounds to me like that guy paid that shop to "learn" how to program fuel injection.

 

There are lots of options out there. I think Accel even has ecu's that replace factory GM one's now.

 

You should not have any problems.

[pparaska]

I agree with Dave. If you want to get 95 % of the way towards a good MPI system coming from a carb, the Holley 950 Commander TBI looks like the way to go.

 

But I keep getting told that with some good parts shopping and doing a few things myself, I could do a MPI system with the 950 ECU and harness, using the single plane Vic Jr I already have, for about the same money as that Holley TBI system ($1400).

 

One of these will be a winter project for me.

[fl327]

ernie , efi is really great tuning and everything, but i think initially running a carb on a motor is cool, you can sort the driving bugs out of the system and learn what the car is all about, then if you want you can make the switch over, and in a non emissions application there are only about ten wires needed to make the car start and run. six wires or maybe less in a l6 motor. personally, i dont think v8s look right with efi, and if i were ever to do another v8car of any kind, best believe youre gonna see at least one carb sitting on top of the motor, a running rich the whole board can rag on me all they want, nothing say boss hog muscle machine like a carb to me, its flambosting and its quite sambostic to hear the song of big cubic inches, lumpy idles of death, and wot through a double pumper. unless you run a turbo v8, like some people always TALK about, then efi is very proper IMHO. in short, i think fi is very nice, but a carb is very NASTY especially with a t10 behind it SAAAAAAAAAAAMBOSTICCCCCCCCC

[pparaska]

One thing to consider. Those of us that for what ever reason (mine- choosing too big a carb that would work right out of the box without mods) an improperly set up carb can be trouble for the ring seal. If it's too rich and run much, the rings will wear out and the cylinder walls can be glazed.