Here's a HUGE shout out to Jebbysan for a comment he made in some engine related post about "Edelbrock carbs dont like more than 6 psi"
I've been having a bad time trying to tune an Edelbrock 600 carb on a project camaro so i checked out the inline fuel pressure gauge -- PO had it dialed up to 7psi. We've tried an almost infinite amount of settings on both mixture screws, idle screw,etc. Hell i even rebuilt the carb (more for the experience than the need)-- still idled pig rich, bogged on accell, sluggish all around.

So last night i broke out the allen wrenches, dialed the pressure back to just under 6psi and BAM she idles nicely, accells crisply, and runs well !!!

THANKS JEBBY

 

Jebbysan has always been very helpful on the forum and also replies quickly to my PM's.

 

Dude really knows his stuff & isnt a dick about it like you see on the web sometimes
I bet a lot of the "pos edelbrock" posts come from things like that. .most are calibrated for stockish engines.

Other guys know electrical, vacuum systems etc real well. So much to learn thats at our fingertips.
Beats relying on a monthly mag that may or may not talk about it.

 

2 things here. Yes it's always a good idea to research old threads when your having one of those head scratching problems.
And secondly, yes I agree, Jebbysan knows his stuff. And it is kind of him to share his knowledge. Big thumbs up to Jebbysan!

 

I call these "old wives tales". Put a fancy electric fuel pump on the car will solve fuel problems, install electric fans to cool the car, use super high octane fuel for more power, ETC ETC ETC. Set up the car correctly, like it was 50 years ago, and they will run just fine. Of course unless you want 500+ HP.

 

Thanks fellas.....I just call it like I see it.
There is way too much misinformation out there.......and pretentious people that think they know what they are talking about. These people are dangerous......to themselves, you and your Vette.
The 6psi deal I stumbled upon quite by accident 20 years ago on my Dads 32' Three Window. The 1409 carb on it ran like **** and was hard as hell to start after running in for a beer at the Party Store. Once I had it running in the garage with the air cleaner off dicking with it (I was all of 30 years old LOL!) and decided to shut it off.....when I did I heard gurgling. Looked down the throat and fuel was just dripping out of the boosters. Then it would slowly stop. So I started it and looked down there and it was doing it again running! After taking it apart twice....I looked in the manual (Go Figure!) and it said 6psi.....no warnings, no you must do this....6psi.
So I put a regulator on it and dialed it down to 6. Car still runs around down here in the Hill Country somewhere......

Old cars are frustrating, expensive and take a lot of motivation to work on........some of us, like me, have full time job and work on people stuff on the side. I do not advertise, I pick whose stuff I will work on, even bumped my hourly fee during Covid last year and I still backed up til the end of the year........most of my customers have been to someone else and had poor or mixed results. These old cars are so easy to me but I have to remind myself that most do not see it that way at all, and certainly do not see what I see. I like to help them out with their investment and I meet some really nice people as well. I am slow as hell and that is the rub.....some days I just do not feel like dicking with things......but most understand and I give good progress reports.

I was around Vette's from birth.......Dad had dozens of them....later I worked for two well known engine shops and absorbed it like a sponge. I do not build race engines anymore but I could.

I also want to say that I DO get it wrong sometimes.......and I am the first to say I am wrong. Thank you forum for not flaming me like a freakin Facebook group.

Thank you for your words......

Jebby

 

Jebby...You Da Man! If I ever decide to build a BB, I will call you and get some recommendations. I also LOVE this statement and it definitely applies to the crossfire world as well, thank you for it.

 

I appreciate it when someone accidently posts a reply in an Old thread. Being a Vette rookie I appreciate all the knowledge Old or New that gets brought up by accident.
FYI: New members should cop y/print/save the info in a binder when you run across information....you WILL use the Info sooner or later.....guaranteed.



And please correct me when I provide "not-so-accurate info" to a thread

 

I joined CF 19 years ago when it was a privately owned forum and the amount of Corvette information I harvested into my brain in the few short years after that was amazing. The people on this website are always willing to help even if it's a stupid question that has been asked and answered a million times (what oil should I use).

Rarely does a day go by I don't log in and see who posted what, yes I need to get a life.

 

Fuel pressure regulator. Another blast, from the past!

"Old cars are frustrating, expensive and take a lot of motivation to work on.." Maybe. Old cars are simple. You can actually UNDERSTAND what you are doing. Myself, I get tired of computerland...

I have a elderbrock carb, probably a 600, that came on a 2010 Jeggs crate motor. Can't say for sure 'cause I'd have to remove the carb to see the numbers on it. I changed the fuel filter (SOP for a new [to me] vehicle). Re-visited the misery of that GM fuel line. Have to install the filter WRONG - vertically - 'cause there's just no other way to do it. (Large chunks of dirt will simply fall back into the fuel hose when you stop the motor. So when you change one, always use a hose coming off the fuel pump and run the starter for 20 seconds or so, to spit those dirt chunks out.). I used high pressure (EFI) hose and 3 clamps on the bend, to make sure it did not collapse on me.

Leading up to: How do you mount a fuel pressure regulator? What kind can you get, now, that actually works and can supply a gas hog 350?

I'll be mighty skittish, on this one. Engine fires are horrible things! NOT the way I want to die...

Can you use one safely, without going the electric fuel pump route? I still don't like stray fuel lines running around. Too easy to hit one without noticing it and cause it to leak.

So could you be so kind as to tell me (and us) how to do this safely? THANKS!

 

I have a holley 4 barrel on a 327 HP engine. I don't have a fuel regulator, just a stockish mechanical fuel pump. Correct fuel lines and filter. Mine runs just fine. Why do you think you need a regulator?

 

I was replying to jebbysan's post, above. I used regulators before. They prevent the needle/seat fuel valve from being overwhelmed by the pressure from the fuel pump.

 

Read post #1

Jebby

 

I am going to say this as carefully as I can. Old cars are NOT simple......and the folks that think that they are simple are usually the ones that I end up fixing their "repair". I talk to at one person a month that knows a guy who can set timing by ear....or he is so good that he can adjust the carb by sniffing the tail pipe while standing on his head with a hot poker in his ***......this enthusiast Bubba counterculture has been the Achilles heel of this hobby ever since I was a kid......these kind of people always have a screwdriver and a 9/16 wrench in the car because "their car keeps getting out of tune".......I cannot and will not converse with people like this because I spent 30 years learning from the best and honing my own talents to try to do the best job possible. Facebook is packed full of these morons.......because if you are socially inept, cars are an easy hobby to misinform and spread bad knowledge to other similar idiots. Problem is that there is more of them than us......
Old cars are more simple than new cars......but show me 2 guys out of a 1000 that can tell me how a mechanical/vacuum advance distributor works and why.....how a carburetor functions and why.....
Modern "mechanics" are nothing more than glorified parts changers these days. I think new automobiles are stupid easy to work on verses some of the old **** I have had to repair. The engine management systems are plug and play, they self diagnose (to a point) and generally you can get to things and swap them out. Define "old" car too......ever worked on a C4 Corvette? Probably one of the most difficult automobiles to work on in history......these are now over 30 years old.
If you are a novice that is green to C3 Corvette's or Vintage cars in general, you have a lot to learn. This forum is one of the best around in this section (C3). The knowledge here is outstanding from some of the best in the business.....knowing that it is important to listenhere to what some are telling them. Compare answers and back it up with a little of their own research......if you are a novice, this can be extremely rewarding when you solve your own problems and learn....but it also takes a bit of dedication and some simply will not do that. The easy way out is never the way out on a Vintage car.
Another problem is that the knowledge is dying off......I was lucky to learn from people who had drivers licenses when these cars were built, people that are at least 15-20 years older than me and many who are unfortunately are not around anymore. In ten years it will be worse......
But it all goes back to what the owner of Dart Machine told me once: "You think you know, but you don't really know...." Dick Maskins-2005 (Record holding NHRA Pro Stock Engine builder).
Thanks for listening and reading my book......always here to help.

Jebby

 

Jebby

Sir, You are one of the most knowledgeable and helpful people on this Forum!

You answer the questions for people so we can "all" understand the answers.

You don't speak above us or down to us and are always friendly about it. You explain things very clearly so we can understand the point.

Your knowledge of carburetors and engines is very impressive and I wish I had heard of you before when I was fighting my Carburetors to get the right mixture at the right time. I went and installed a wide Band O2 so I could see what was happening inside my carburetors. I have a collection of several carburetors that I have used at one time or another on my L88 copy.

Today I have swapped out to a Holley Sniper in place of my A.E.D. Holley Carburetor which worked very well most of the time. My only problem has been that I could not get a modified carburetor with an electric choke assembly so starting in the cold weather was tough to say the very least.

With your level of experience and knowledge you could be/should be making money for your answers but you are so generous to help all the folks with carburetor issues on this Forum. Your help and answers are priceless and many a guy has benefited from your personal advice!

As for me I really appreciate your time and answers! When I see a post from you I read it as you teach us so much in your posts.

I just want to say that I really appreciate and am grateful for all your help to this community of ours!

IF there is ever anything we can help you with please ask!

You are Da Man when it comes to carburetors!

Just KNOW that we here really appreciate all you do for the Corvette Forum!

 

You: "Old cars are more simple than new cars......but show me 2 guys out of a 1000 that can tell me how a mechanical/vacuum advance distributor works and why.....how a carburetor functions and why....."

I can tell you both. And I am 72 years old. But since you just called me a moron, I won't bother.

Seems to me you are what you describe... In a PM you told me vacuum (or lack of same) has nothing to do with a motor bogging... You: "Any carb can be tuned to operate without bog. Has nothing to do with vacuum or mechanical secondaries….."

Mechanical secondaries open when you floor the gas. What happens if you suddenly open all four ventries at idle? Or low revs? Vacuum disappears. MOTOR DIES. Why does motor die (or bog)? Because vacuum is what makes the !@#$%^&* CARB WORK. Air velocity? Really? What makes the air move? Vacuum. Then you talk about someone else not understanding how a carb works?

You may have these people steppin' and fetchin' but not me. Oh, and the day you fix one of my repairs is the day I will kiss your *** at Main and Broadway, after giving you 15 minutes to draw a crowd

I seem to find people like you everywhere I go. I know why. It's because I see the crap everyone else misses. I had my first bike when I was 8; first car at 11 and I was BORN what a (!)in wrench in my hand, BOY.

You would do well to accept my live and let live attitude...

 

OH WOW...YIKES! Let the games begin. With ONLY 14 posts on the forum and you come out swinging like a mega post ***** looking for a fight, wow! That post #16 was totally uncalled for and unwanted regardless what you think of members here..

 

BTW ctm, thanks for helping me on the C4 forum when I was getting crickets Lol.
I ended up fixing the car….while someone was kissing my *** after waiting 15 minutes for me to draw a crowd….

Jebby

 

One thing that was 'preached' to me by my parents growing up-

If you can’t say something nice, say nothing at all!

And another quote that comes to mind my father used-

If you're the smartest person in the group- maybe you need to find a new group!

Thanks Jebby for your contributions- as we have fewer and fewer "good guys" around to help out....

 

I'd love to do just that! Let's get together. Shall we?