what search phrases turn them up? i've tried everything and cannot find threads about a V8 carbed swap. i came across a good deal on a V8. i'm going to build it up for a swap eventually. for now, i'm throwing in a 3.4 but in a year or two, it will be a V8.
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05:37 PM
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bmwguru Member
Posts: 4692 From: Howell, NJ USA Registered: Sep 2006
For v8 swapping you should look up threads with Archie in the name/title.
As for carb conversion, several of us have done this and it is the same for the 60*v6 as v8's. It's a vacuum advance distributor normally, unless you go to an electronic ignition, and if you look up Oreif there are a number of threads with his work. I've learned most of my carb conversion stuff from him.
the Archive TD&Q section is the best place to start.
Arn PS. a search for the word "carb" in the title will help lots too. ------------------
[This message has been edited by Arns85GT (edited 12-27-2007).]
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06:09 PM
Formula88 Member
Posts: 53788 From: Raleigh NC Registered: Jan 2001
not to start any crap, but why would anyone want a carbed engine in the 21st century???? Injection is more efficient and very easy to diagnose once you learn the theory. The only reason I have four carbs on my V8 is because the four carbs costed $3,000 and I couldn't justify spending over $5,000 for an eight throttle body injection setup. The oter reason is I work with Webers at my shop on the older 911's. If I were to chose between a Holley or Edelbrock or TPI, I'd go with a TPI. Just my opinion, Dave
not to start any crap, but why would anyone want a carbed engine in the 21st century????
Quit starting crap I agree, when I get the body done and season the car a little I will switch it over to fuel injection. Carb setup is easy when your ready shoot me a PM.
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09:52 PM
shawnkfl Member
Posts: 2457 From: Largo, Florida Registered: Oct 2004
i'm looking to go carb just for the shear simplicity of it. just the thought of tearing all of that wiring out is enough for me. i'm not concerned about efficiency at all. this is just a toy for me. my fiero could never be my daily driver, so why not keep it simple.
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10:07 PM
Oreif Member
Posts: 16460 From: Schaumburg, IL Registered: Jan 2000
I lost my idiot lights but have aftermarket gages that are easy to read. Oil, volts and temp gages where the rally gages were. I have a mechanical oil pressure gage backup for the electrical gage installed where the old dogbone mount is. The Computer is just a big butt connector now.
My carb is an edelbrock off the shelf, set the idle and go. Heads are stock, low profile holley intake. Pretty easy setup. What V8 kit are you going with?
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08:20 AM
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Alex4mula Member
Posts: 7408 From: Canton, MI US Registered: Dec 1999
It is true that an SBC V8 thread of any kind hasn't appeared here in a long time. So go to the archived threads for it. Carbs will still be used by many. Holley, Demon, etc. only seem to sell more every year so many people still like them. Either way is your own choice. Good luck
I'm kind of surprised to see the screwdriver vs. laptop arguement again. I thought it was pretty well established you get the same power with either system. And, like the man said, it is personal preference.
The guages are not dependent on the ECM so I've been using mine. I am gradually converting though, simply for accuracy, and also to get readings I think are nice to have for the carb setup.
I'm going to keep the stock fuel guage, heat guage, and oil pressure guage because the cluster is made for them. I have added Volts, Vacuum, and will add Air/Fuel, and analogue heat.
Arn
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09:35 AM
shawnkfl Member
Posts: 2457 From: Largo, Florida Registered: Oct 2004
i see tranny adapter kits pop up on ebay every once in awhile. since i'm in no hurry, i'll just keep watching until i find one at a decent price. if i can find any prints on one, i can have our machine shop make it. i have an 84 cradle just laying here so i'll be using that to cut up and make work. i won't be ready for quite some time i'm sure. the 350 will be completely rebuilt as i have money to do it so that alone will take some time for me. time is not something i have much of but it's getting better. my little girls are getting more independent and i can get some things done finally. i'll get there. right now i'm trying to get a list together of what i need. i'm off to look at carbs now. that's the next victim on my list!
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09:55 AM
bmwguru Member
Posts: 4692 From: Howell, NJ USA Registered: Sep 2006
ok ok ok.....I give. I realize it is personal preference. After all, I do have four carbs on my V8. I used to run an Edelbrock 750 on my last V8. Personally, I believe that the Weber carbs actually make more power than an injected setup, unless the injected setup was custom tuned. Dave
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10:58 AM
motoracer838 Member
Posts: 3751 From: Edgewater Co. USofA Registered: Jan 2006
i try to steer clear of those carbs, they seem to make me fat and then my wallet is empty
this is just my opinion, but once i figured out how to wire the quad4 up in my 88 coupe, i have no idea why anyone who doesnt have existing knowledge of carbs would want to use them, the fuel injection that came stock on the motor was easier for ME to use, than it would have been to learn how to setup a carb and tune one, granted they dont make a carb setup for the quad4 but the theory still applies, if i had a 1987 chevy truck motor (first year for EFI in the chevy trucks) i would keep using the throttle body before id attempt to go BACK to a carb.
ok ok ok.....I give. I realize it is personal preference. After all, I do have four carbs on my V8. I used to run an Edelbrock 750 on my last V8. Personally, I believe that the Weber carbs actually make more power than an injected setup, unless the injected setup was custom tuned. Dave
Well... a Weber set-up like yours is essentially an individual throttle body intake, no? It would stand to reason that a fuel injection car would need an equivalent ITB intake to match the power. If both are tuned to "perfect" A:F ratios on the same engine, with injectors and venturi at the same distance from the valves, same ignition set-up for both, etc., it would stand to reason that peak power should be nearly identical.
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03:36 PM
bmwguru Member
Posts: 4692 From: Howell, NJ USA Registered: Sep 2006
Well... a Weber set-up like yours is essentially an individual throttle body intake, no? It would stand to reason that a fuel injection car would need an equivalent ITB intake to match the power. If both are tuned to "perfect" A:F ratios on the same engine, with injectors and venturi at the same distance from the valves, same ignition set-up for both, etc., it would stand to reason that peak power should be nearly identical.
I was referring to a typical single throttle body injected engine. There are too many variables to concider to say which would be better. My Webers get 4mpg when I play and 20mpg on the highway. I also haven't seen anything on the road that can keep up with my Fiero....except for the one I am building now....maybe Dave
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03:43 PM
fieroguru Member
Posts: 12482 From: Champaign, IL Registered: Aug 2003
If you are swapping in a bone stock SBC that originally came with EFI, them most certainly keep the fuel injection and just do the swap. Since the EFI was already matched to the engine, it should not give you many issues while fine tuning the rest of the swap.
However, if you are building a non-stock SBC combo tuning the EFI can be a challange, starting with the carb will get it running very quickly and give you an opportunity to refine/perfect all other aspects of the swap (cooling, mounts, exhaust, reliability, etc). Once you are happy with everything else, then you can add EFI and dedicate the needed time to properly tuning it.
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04:07 PM
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shawnkfl Member
Posts: 2457 From: Largo, Florida Registered: Oct 2004
i want to go carb. why? just what i want to do. if EFI was in mind, i would have searched or questioned about EFI V8 swaps. every thread seems to turn in to a thread about what you should or shouldn't do, instead of what the original post was about. i really appreciate all of the replys, but EFI is not what "I" want to do. i was expecting a little resistance but sheesh...i really expected the "just use a 4.9 caddy" reply, which seems so typical in post like this. a carbed 350 is all i'm looking to do. to throw a wrench in it, it may be a 305, if the price is right.
I like my carb because all of the gaskets are above the fuel line. The holley I had leaked so I didnt trust it, even after I rebuilt it I didnt trust it. A good carb will get the job done.
[This message has been edited by Jake_Dragon (edited 12-28-2007).]
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04:35 PM
bmwguru Member
Posts: 4692 From: Howell, NJ USA Registered: Sep 2006
You want a carb, then just do it. Tuned upped right, you will love it. It does make a much easier swap as far as making it run!! Good Luck and let me know how things are going. Gary
I was referring to a typical single throttle body injected engine. There are too many variables to concider to say which would be better. My Webers get 4mpg when I play and 20mpg on the highway. I also haven't seen anything on the road that can keep up with my Fiero....except for the one I am building now....maybe Dave
We're on the same page. We both forgot to mention that a single throttle body setup has a tough time being as sexy as a bunch of Webers or the like.