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Old 12-18-2013, 12:23 AM   #41
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Needs a 5th injector setup.
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Old 12-18-2013, 12:25 AM   #42
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Why don't you get a Civic? I hear they're pretty popular.
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Old 12-18-2013, 12:29 AM   #43
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Quote:
Originally Posted by Track View Post

New rule. if you have more negative props than posts...BANNED!



But the LOLs... Really, I agree.

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Originally Posted by Hinano View Post
That's the thing.. I'm not really broke. Also, this is a hobby of mine. Let's just call it a $500 budget for power.


Yes you ARE broke, clearly more so than the measly $500 you have to spend on this "hobby".



Yes you ARE broke, clearly more so than the measly $500 you have to spend on this "hobby". - TWICE BECAUSE YOU DEFINATELY WON'T GET IT THE FIRST TIME.


Yes you ARE broke - Someone make a meme about, "one does not simply budget $500 for racecar" or something!
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Old 12-18-2013, 01:07 AM   #44
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$500 budget...because racecar!

btw we can just delete every post after #15
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Old 12-18-2013, 02:03 AM   #45
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1) open/closed loop can be different. I think the general consensus is an open loop system doesn't use the o2 sensor to adjust AFRs anymore. Whether the MAF and/or other sensors are used is anybodies guess and probably dependent on application and manufacturer. It seems earlier testing would indicate the MAF is not being used and/or ECU doesn't fully compensate for additional airflow due to mods.

2) AFRs tend to get much richer vs closed loop. In closed loop the ECU will run you at/close to stoich. In open loop its some AFR value that is much richer than that. a stock miata might run below 12. if you run enough mods, it might run at 13? You could put a turbo on there, add no extra fuel and run at 17 if you like. I also heard that moving the injectors to the exhaust side has some cooling benefits.
Thank you for your help. I have copied and pasted below some info from Mnet to share learnings. Also below is a exerpt from Solomiata from his experience with his 1.6L. I'll keep researching.

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Closed loop is controlled by the front O2 sensor. The A/F will cycle around 14.7, because the narrow band O2 is cycling between rich (~1V) and lean (~0V). When the O2 is rich, the injector duty cycle is reduced (less fuel), when the O2 is lean, it increases (more fuel).

The reason the O2 / injector duty cycles, is there is a lag from the time the injectors fire, and the exhaust gas reaches the O2 sensor. You can't adjust the injector duty cycle any faster than that.

Above a certain RPM (my car, that is about 4000RPM) the engine goes open loop. The air is monitored by the AFM, and the injector duty cycle set accordingly - usually a bit rich (much safer than a bit lean).

Bigger injectors, or a rising rate FRP will remain in the closed loop up to 25% more fuel, then the ECU runs out of range. Open loop, the duty cycle is based on the air and the stock injectors, I would expect the car to run rich.
Solomiata "I used the Downing/Sebring fuel regulator unit myself. It is a variable rate of gain model so it can be set to change the fuel pressure at different vacuum levels. I went this route so that only the WOT fuel was altered and not idle or mid throttle, where the O2 sensor will compensate if needed. I increased the WOT fuel pressure from 43.5 to 50 psi based on my fuel/air ratio gauge readings."
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Old 12-18-2013, 11:16 AM   #46
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Not one person on here cares what m.net has to say.
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Old 12-18-2013, 01:48 PM   #47
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I'm almost positive he is just trolling
Nope, no such luck; at least if his threads (all 43 in less than 5 months!) over on Miata.net are any indication, then unfortunately that's probably not the case.
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Old 12-18-2013, 04:46 PM   #48
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I'll just say one thing to a couple people I won't name...

I am understanding of the fact that we are all on different stages of developing our emotional intelligence but some of you guys really need to stop being such control freaks LOL.

With that said, I would like to reference two quotes which I believe non of you can disagree with.

“The aim of education should be to teach us rather how to think, than what to think - rather to improve our minds, so as to enable us to think for ourselves, than to load the memory with thoughts of other men” James Beattie

"Knowledge will give you power, but character respect" Bruce Lee

Have a nice day homies.
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Old 12-18-2013, 04:49 PM   #49
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It has nothing to do with being a control freak or not. Are you sure you aren't just throwing around phrases and/or words in order to just vomit something into an internet post?

You have to see how frustrating it gets when you come on here without knowing much, and refusing to do any sort of research to gain any small modicum of understanding that which you're trying to discuss, right? We will not spoon feed. Help you help yourself.
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Old 12-18-2013, 05:10 PM   #50
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It has nothing to do with being a control freak or not. Are you sure you aren't just throwing around phrases and/or words in order to just vomit something into an internet post?

You have to see how frustrating it gets when you come on here without knowing much, and refusing to do any sort of research to gain any small modicum of understanding that which you're trying to discuss, right? We will not spoon feed. Help you help yourself.
Your point is valid except that I am not not doing research. I am doing allot of research and am trying to learn as much as possible as fast as possible. Control has to do not with requesting me to do my own research, that is valid. Control is insisting that other should follow what you say, simply because you and or others believe it is the right thing to do.

The quotes above have to do with supporting a humans curiosity and drive to fully understand and think for themselves rather than just accepting what others say. This is a individualistic, and VERY beautiful ideological character of American culture.

Correct me if I am wrong but a online forum = socializing, learning and teaching
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Old 12-18-2013, 05:17 PM   #51
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“A mind is like a parachute. It doesn't work if it is not open.”
-Frank Zappa
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Old 12-18-2013, 05:26 PM   #52
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Originally Posted by fooger03 View Post
“A mind is like a parachute. It doesn't work if it is not open.”
-Frank Zappa
"A mind is like a parachute. It will not open if we don't construct it with great care, knowledge and skill"

- Me, inspired by Frank Zappa & fooger03
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Old 12-18-2013, 05:32 PM   #53
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Quote:
Originally Posted by Hinano View Post
Your point is valid except that I am not not doing research. I am doing allot of research and am trying to learn as much as possible as fast as possible. Control has to do not with requesting me to do my own research, that is valid. Control is insisting that other should follow what you say, simply because you and or others believe it is the right thing to do.

The quotes above have to do with supporting a humans curiosity and drive to fully understand and think for themselves rather than just accepting what others say. This is a individualistic, and VERY beautiful ideological character of American culture.

Correct me if I am wrong but a online forum = socializing, learning and teaching
You are very obviously not researching in the manner which we call researching, which is reading things online without asking questions. We dont just hand out answers to rudimentary questions which would have been answered if you would do a short google search for the answer.
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Old 12-18-2013, 05:46 PM   #54
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Guys,


What is the meaning of life?

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Old 12-18-2013, 05:59 PM   #55
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Originally Posted by Leafy View Post
You are very obviously not researching in the manner which we call researching, which is reading things online without asking questions. We dont just hand out answers to rudimentary questions which would have been answered if you would do a short google search for the answer.
Leafy, I suggest you look at your own posts in this thread. EVEN YOU are asking questions and trying to learn.

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Guys,


What is the meaning of life?

This one is easy! If we are talking about what is important to us humans..There even has been some research done on older people on their deathbeds.

Summary = Family, friends, love and personal development.
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Old 12-19-2013, 09:35 AM   #56
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Old 12-19-2013, 12:03 PM   #57
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