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Why do efi guys have so much trouble?

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Old 01-20-2012 | 08:39 PM
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Default Why do efi guys have so much trouble?

I ran a msd 6ls box on my carbed 99 camaro and 91 mustang with no issues on the tune. You always are reading problems with the tuning of efi cars. Motors running to lean not idling tranny issues and such. What the hell is the problem?
Old 01-20-2012 | 08:44 PM
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difference between someone who bolts on parts and someone who has mechanical knowledge
Old 01-20-2012 | 08:45 PM
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Originally Posted by butler
I ran a msd 6ls box on my carbed 99 camaro and 91 mustang with no issues on the tune. You always are reading problems with the tuning of efi cars. Motors running to lean not idling tranny issues and such. What the hell is the problem?
You're kinda stuck on the carb deal aren't you? You realize, NOTHING comes with a carb anymore, right? And if you've been working on cars long enough (I doubt you have) then I'm sure you've seen PLENTY of carb problems as well. You know, leaky bowls, blown power valves, bad hesitation from worn accelerator pump diaphrams, vacuum leaks from warped base plates.

I mean, surely you don't think a carb can maintain perfect stoich., do you? Or start up and drive away cold. Or automatically idle up when you turn the AC on.

Yeah, carbs are great. On drag cars that run for 7 seconds at a time, and then click it on the big end. We should all yank our EFI off, and throw carbs back on. What the hell were the auto makers thinking?
Old 01-20-2012 | 08:49 PM
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You just started it now! This should be good!
Old 01-20-2012 | 08:49 PM
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Originally Posted by edcmat-l1
You're kinda stuck on the carb deal aren't you? You realize, NOTHING comes with a carb anymore, right? And if you've been working on cars long enough (I doubt you have) then I'm sure you've seen PLENTY of carb problems as well. You know, leaky bowls, blown power valves, bad hesitation from worn accelerator pump diaphrams, vacuum leaks from warped base plates.

I mean, surely you don't think a carb can maintain perfect stoich., do you? Or start up and drive away cold. Or automatically idle up when you turn the AC on.

Yeah, carbs are great. On drag cars that run for 7 seconds at a time, and then click it on the big end. We should all yank our EFI off, and throw carbs back on. What the hell were the auto makers thinking?
First of all douche I am 55 years old and know more about automotive history then you do so **** off. Go back to your pissing thread.
Old 01-20-2012 | 08:53 PM
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Originally Posted by JWStevens
You just started it now! This should be good!
Dude likes to blow his horn. If he is such a computer freak he should be making millions. The guys who came up with the computer programs are genius. Those that started to tune are the learners. And it takes years and years to get it right at the cost of motors and such.
Old 01-20-2012 | 09:01 PM
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Originally Posted by butler
Dude likes to blow his horn. If he is such a computer freak he should be making millions. The guys who came up with the computer programs are genius. Those that started to tune are the learners. And it takes years and years to get it right at the cost of motors and such.
I'm 45, an ASE master tech and ASE advanced level certified, and have been for 20 years. I have been tuning EFI systems since the mid 90s, when the tuning programs were all CDOS based. Why is it you cannot have a civil conversation without stooping to name calling? You're 55 yet talk like you're 15.

I've tuned thousands of cars, including carbed cars. Some very very fast ones I might add.

PS, as for money, I don't do too bad.
Old 01-20-2012 | 09:11 PM
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Originally Posted by butler
Dude likes to blow his horn. If he is such a computer freak he should be making millions. The guys who came up with the computer programs are genius. Those that started to tune are the learners. And it takes years and years to get it right at the cost of motors and such.
Since I like to blow my own horn, and of course because I can't possibly be any good at this, I thought I might share some of my not so good work with you.

Can you do this with a carb? 4400 lbs, and 10.70s at 130+?

http://www.youtube.com/watch?v=oJYB9...3&feature=plcp

Or how bout this one??

http://www.youtube.com/watch?v=O7RjtYcGulM

And here's me in China tuning GTRs and Corvettes and Mustangs, OH MY!

http://www.youtube.com/watch?v=A1GyU...6&feature=plcp

Yeah I suck so bad, I gained 100 hp at the wheels in the GTR!! LOL
Old 01-20-2012 | 09:12 PM
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Originally Posted by edcmat-l1
What the hell were the auto makers thinking?
That if they don't use EFI they will never meet the cold start emission rules and the fed won't let them sell the vehicle.

No way would the automakers have switched to EFI if not for the smog ****'s forcing them.

By the way, the rest of this discussion is juvenile.
Old 01-20-2012 | 09:15 PM
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The money is the issue with the efi for me. Its a racket IMO.
Old 01-20-2012 | 09:17 PM
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And here's me tuning Corvettes in Austria. Yeah, it'll take me years and a bunch of blown up motors, but until then, the ignorant public flies me around the world to tune their cars. LOL



An if you think I'm BSing you, here's my photobucket album of my 2011 trip to Austria. It was my 5th trip to Europe to tune. I go to Germany/Austria about once a year, and China 1 or 2 times a year. Not too bad for a guy that blows his own horn, eh?

http://s125.photobucket.com/albums/p...ustria%202011/
Old 01-20-2012 | 09:32 PM
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I wasn't ******* you, you ran your mouth about me inferring I am an ignorant type person with little to no skills. You attacked me Ed. I just believe there are too many people out there trying to tune efi and have not even basic knowledge of what they are doing. I WAS NOT TALKING ABOUT YOU. And you come on here blowing your horn. You are being a douche.
Old 01-20-2012 | 09:36 PM
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Man you really need to read yourself. I would say there are maybe 20 to 30 meople capable of tuning to an inth degree. I never attacked you and do not know or care who you are. I am running efi and have someone to tune it. His own truck puts out 1300 hp with air and powersteering. Ok?
Old 01-20-2012 | 09:44 PM
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I never attacked you. To think no one can tune EFI, or that a carb, in this day and age, is superior to EFI, is ignorant. Plain and simple. It is.

There are far more than 20 or 30 people that can tune very well. You really don't know what you're talking about. That's not an attack, you just don't. You don't know what's available for software. You don't know who can do what.

If you take that as an attack, I'm sorry. It isn't.

As for reading myself, I posted what I did to show you that I'm no jack leg. Not to mention, I'm proud of what I've accomplished.

I've been doing this a long, long time. I tune carbs. i'm old enough to tune carbs and points. But I'm young enough that I cut my teeth on EFI in the very early stages of it.
Old 01-20-2012 | 10:05 PM
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I have an honest question. Why in the hell can't the efi tune itself? And I'm not an idiot before you ask!
Old 01-20-2012 | 10:08 PM
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Originally Posted by edcmat-l1
I never attacked you. To think no one can tune EFI, or that a carb, in this day and age, is superior to EFI, is ignorant. Plain and simple. It is.

There are far more than 20 or 30 people that can tune very well. You really don't know what you're talking about. That's not an attack, you just don't. You don't know what's available for software. You don't know who can do what.

If you take that as an attack, I'm sorry. It isn't.

As for reading myself, I posted what I did to show you that I'm no jack leg. Not to mention, I'm proud of what I've accomplished.

I've been doing this a long, long time. I tune carbs. i'm old enough to tune carbs and points. But I'm young enough that I cut my teeth on EFI in the very early stages of it.
My point in this thread has nothing to do with you. I have never said squat about your knowledge or my opinion of it. Go abuse someone else, please. Since you are not into carbs why did you post here? There are guys running lo 9's on carbs n/a all day long and faster. It doesn't take efi to make power. The government forced the computer issue and that's fine. Ya I am the ignorant one and you are arrogant. Let your work speak for itself. Tune points? You set the dwell dude 28-32 really simple. I didn't start this fight just wanted to show good efi tuners are not in abundance you turned it personal.
Old 01-20-2012 | 10:14 PM
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Originally Posted by JWStevens
I have an honest question. Why in the hell can't the efi tune itself? And I'm not an idiot before you ask!
There are some aftermarket systems that tout "self tuning" but the fact of the matter is, there's so many different tables that need to be modified, or setup properly in the case of an aftermarket standalone, that it's almost impossible to have a system completely tune itself.

Even a system as simple as the F bodies, with IAC controls, just for an example. This system still needs a mechanical adjustment of the throttle blade and TPS to get the IAC counts correct, and to make it idle properly, and return to idle properly. This is just one example.

I will agree with the OP in that there are a lot of guys out there with software that don't know what they're doing. There's even professionals that don't know what they're doing. But that's in any occupation or industry. There's good doctors, and really bad ones.

Back to EFI. A well set up system is a thing of beauty. The one thing EFI provides that is far superior to a carb is it's tuneability. There is an almost infinite amount of adjustability built in to most every EFI system regardless of make. A carb can't even come close.

And for the record, you asked a legitimate question. You didn't come on and make a senseless comment.
Old 01-20-2012 | 10:21 PM
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Originally Posted by butler
My point in this thread has nothing to do with you. I have never said squat about your knowledge or my opinion of it. Go abuse someone else, please. Since you are not into carbs why did you post here? There are guys running lo 9's on carbs n/a all day long and faster. It doesn't take efi to make power. The government forced the computer issue and that's fine. Ya I am the ignorant one and you are arrogant. Let your work speak for itself. Tune points? You set the dwell dude 28-32 really simple. I didn't start this fight just wanted to show good efi tuners are not in abundance you turned it personal.
Who said I'm not into carbs? Now you're putting words in my mouth? You're kind of harsh don't you think? I'm not abusing anyone here. You made some comments, this is a forum, and I'm responding.

And because this thread is about soooo many people having problems with EFI, and I tune EFI, I guess it kind of IS about me.

I never said you can't make power with a carb. Everyone knows you can. That's not even a debate. My thing is, you're in here, and in the other thread, telling people to put carbs on their late model engines/cars, when it completely doesn't make sense. Why would someone go back 30 years? No matter what you do, that carb will never run as good as even a half way decently tuned EFI system. Not to mention all the issues you'd cause with all the rest of the systems involved with the engine controls. ABS brakes, traction control, even the dashboard would freak out.

I will agree though that really good EFI tuners aren't overly abundant.
Old 01-20-2012 | 10:29 PM
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Originally Posted by edcmat-l1
Who said I'm not into carbs? Now you're putting words in my mouth? You're kind of harsh don't you think? I'm not abusing anyone here. You made some comments, this is a forum, and I'm responding.

And because this thread is about soooo many people having problems with EFI, and I tune EFI, I guess it kind of IS about me.

I never said you can't make power with a carb. Everyone knows you can. That's not even a debate. My thing is, you're in here, and in the other thread, telling people to put carbs on their late model engines/cars, when it completely doesn't make sense. Why would someone go back 30 years? no matter what you do, that carb will never run as good as even a half way decently tuned EFI system. Not to mention all the issues you'd cause with all the rest of the systems involved with the engine controls. ABS brakes, traction control, even the dashboard would freak out.

I will agree though that really good EFI tuners aren't overly abundant.
I didn't tell him to do it nor have I led a charge to do so. I just said what I did. If I didn't have a 4.11 gear in my camaro and had a 700 or 200 it could have pulled over 20 mpg's. You are wrong about the point of this. My carbed car started in 5 degree weather and was more dependable then the efi tuned car I had by a long shot. Since carbs are so outdated why did msd and others take the time to develop the 6ls and others? Maybe you should call and tell them they are wrong. In fact I was on your side on that thread. I just watched the pissing match. And yes I believe the carb will be here a long time.
Old 01-20-2012 | 10:31 PM
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I've tuned a pro mod for the last 5 years and we run mechanical fuel injection and "I" feel like its the best for an all out race car. When you're racing infinite tuneability is just for convo's, at some point its a batch dump situation. We shift at 9800 rpms and I doubt it matters how exact the fuel timing is at that point but I may be wrong?! We've been 3's with our last two "steel bodied" cars so I'm not just trying to argue on the net for fun. Please be civil as that's what I'm trying to do.



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