You may or may not be on the right track with your thinking. At this point you have a lot of research to do. I'm done offering advice though since my car only runs 14s and the fastest car i owned only ran mid 13s, so i don't think i'm qualified to help you.

Try efi-tuning.org. There's a guy there with a really fast corvette that might be able to help you.

 

ski you may very well be onto something. my thought would be that they would simply apply the smallest amount of fuel correction. but 3 msec. thats alot of correction. and a ton of fuel. so my thoughts are it boils down to firing strategy and how the ECM represents that thru PW in the data stream. you can know for sure if you static until you run the car on a scope. static will look like a bad P/H driver running pwm. it will stare you in the face.

anyways good luck get a dual trace scope capture the ref and the PW side by side. itll all become clear from there as to WTH were are looking at.

 

Well it's not rocket science...
And while I could go into the math..determining old flow rate to new flow rate..etc etc.
Simply put....

Raise fuel delivery by 25ish %.. PW's decrease 25ish%....

 

GNJones, I'm glad to see that you see this forum as no help to anyone yet decide to not to enlighten the rest of us. That is real helpful and a sure way to get everyone sharing. And best of all you decide to help someone who has done nothing but bash the few people that do know something. Good job.

Ski, I understand exactly what your question is, except it isn't a problem. The ecm isn't doing anything weird but going by the data it has been given. Your problem is airflow, the MAF reading, except it isn't wrong. The ecm is giving the PW it needs to sustain the airflow it sees but since you aren't telling it the exact injector flow you are too rich. But since I don't know jack I'm sure this explanation is totally useless to you. Let's just keep guessing what could be going on and coming up with more theories and putting it on a lab scope. If you really thought that the ecm was doing something your best bet isn't to theorize but to get down to it and start reading the code from a well commented hac. If you're not capable of doing that then don't concern your pretty little head about why the PW isn't at 100%, because you would never really find out by theorizing anyhow. But hey, it's a free country so do what you like and don't forget to bash TGO today!

 

Hectorsn,

Your so far out in left field with you comments I can't even start to help. HOW MANY TIMES DO I HAVE TO SAY:

I KNOW WHY I AM RICH

You say "The ecm isn't doing anything weird but going by the data it has been given"

Hello news flash coming your way. EVERYTHING IS EXACTLY THE SAME IN THE TUNE AS IT WAS BEFORE. So please enlighten me on how the ECM knows the FP has been changed and knows to decrease the PWs accordingly?

If you can slap down a formula, great put an end to this post and enlighten us all. Funstick is probably the best code reader here on this board. Have you read any of his posts?

Clearly you do not understand the question being asked, but keep reading it, you will knock something loose. If my petty brain can comprehend it, surely your can too.

PS hectorsn, maybe GNjones is willing to help me because he sees my what my true intentions are. And believe me its not to sit on here and defend myself to your comments.

Maybe its something to this tune mathmatically:

Injector PW = [MAF(g/sec)]*[Injector Constant (sec/gram)] * [BLM/128] * [INT/128] / [RPM] * [PE F/A vs coolant temp] * [PE correction vs. RPM] * [PE correction vs. TPS] * [PE correction vs. time in PE] * [Some conversions to make the answer be in msec's]
[found on the GNs page]

As I said before, since everything is the same, but the part throttle BLMs are off, on the rich side (thanks hectorsn), in this formula the BLMs are taken into account and would effectively reduce the PWs accordingly.

I want to run some of my values through this and see what turns out the other end. :lala:

 

actually rbob and grumpy are much better then i am. im still in my infancy with code reading. i get it im just not really well versed and things do slip by me. the reason i sugested the scope is that it will illuminate the issue as to weather or not the injectors are static and exactly what firing strategy is in use. its very possiable the the BLM cells are pulling fuel at WOT. but with the BLM locking at 128 going into WOT it seems quiet unlikely.

 

Simply the last attempt here. You increased FP effectively increasing the inj flow. You didn't tell the ecm this, which by the way is your first mistake. You have to tell it the truth so it can make correct calculations. So now you go out and yes, BLM's are rich and WOT is rich. By your own admission and by the data you provided above the car isn't making the same amount of power. Before you were peaking the MAF almost as soon as you shifted but now you aren't maxing it out!!!! Do you see why the PW is less now!!! Look at the first snapshot and look at the graph showing the red and green traces of PW and RPM. Right below it is the MAF graph. Hey, that rhimes! You see how the MAF stays pegged. Look down at the recent snapshot. See how the MAF is not pegged! Airflow, you don't have the necessary airflow to necessitate the original PW at that RPM level. Why? Probably because you are too rich because you didn't inform the ECM about the inj flow update and aren't making max power with such a fat AFR. Does that make any sense to you????!!!!!!! If it does fine, if it doesn't fine. I don't care if I'm right so go ahead and prove me wrong. Keep up the attempts at theories, they seem to working out better for you.

 

the additional fuel could be displacing a small volume of air but jesus thats alot of air.

 

Look at the data, it's been there all the time. He needs to burn a prom with a close enough inj constant and see if he pegs the MAF again.

 

What the hell is that? Your true intentions? What are you some kind of superhero and we just haven't found out about it yet? Give me a break. Over at the other forum you say we don't know squat here. Why don't you try bringing up this topic over there: https://www.thirdgen.org/techbb2/sho...hreadid=183817

That's a doozy. You came up with that all by yourself but most everyone already knew about it. If you were paying any attention you would have read about it because it was discussed while you were a good standing member with everyone on this forum. Maybe you didn't pay attention to it since it was brought up by Grumpy. Or maybe the thread RBob had with V8AstroCaptain about running open loop at idle to avoid the engine going into a closed loop asynch fuel situation wasn't interesting. Maybe you're just here to try and help no one but yourself. Yeah, you say later on in the thread that it was helpful to some people that hadn't known that but I think that was just to cover your butt. So tell us, what are your true intentions? Ahh, never mind. I forgot I don't have an 11 second car so you won't even bother with me.

And funstick, sorry I confused you with Tim, KUV or whatever. You're the one that readily admits to being into prom buring for profit. Obviously learning from this forum and profiting from it is a pretty sweet deal. I will give you this though, you do answer a lot of questions for people and have tried new things for people too. In the end they net you a profit but nothing wrong with that as you aren't trying to hide it. As long as you aren't stealing someones hard work that was done not-for-profit and then calling it your own and selling it. Like that WBO2 that Ski bought from the Aussie guy.

 

Hector,

if you would go back and read the original post, you would see that I inteded to do the following:

If you read that you will then understand that I saw the decrease in PW while on my way there, while cranking through a few of the straight stretches. How hard is that to understand?

Pease spare the other readers the hassle of reading through your band wagon bashing scenerios. If you could read my posts correctly you would see that I did not yet change anything in the tune, I fully understand that the PW during cruise are definately going to change, BUT as Funstick said there is not a good explination why my PW dropped at WOT, unless some correction factor is taking place. THat is all there is.

Nobody here seems to know the answer to this. If they do they could simply put it out there for all to see. I don't see anyone, but one person showing their cards, and he isn't doing it here. Wonder why.

Now please can we just focus on the problem at hand and not talk **** about worthless he said she said crap. Shoot me an email if you wan to bitch at me, and I will be happy to entertain your comments. I'm sure most here would agree with this suggestion.

 

Amazing, you still don't get it. I know you haven't changed anything in the prom. I understood this years ago but you still don't get it. Oh well, I'm done and obviously wrong. Enlighten the others when you find out the truth and I'm sure there are more than enough people here that know what's wrong and are choosing not to say.

 

i do not steal anything. intelectual property isnt owned. If anything ive gone out of my way alot and tried to bring things to light that needed adressing. i work from the 10/90 rule. i have absolutely no problem helping people. never have never will. if you willing to work great then feel free to pick my brain. but if you to lazy or dont want to learn Pay up sucka.

i have and always will be a contributing factor. Most of my push to do anything for proft has been from watching the Qoute( professionals) unqoute try to do this and screw guys out of money. and to top it off do a ****ty job at that. so my motivation is more or less to do it cheaper and better then the (profesionals)

Belive what im telling you prom bruning is not paying my bills. but that might change. it might not. i was working for a company that did chip work but in a complete moment of idiocy they kept a totally incompentent tunner and layed me off. im not claiming to be able to do what the other guy was supposed to do ( vehicle brand wise) but to have siad other tunner tune a car is downright stupid. i cant imagine how i did it 2 yrs ago. with what i know now vs then jesus!! was i dumb.

The issue is competency when i do my job for people i play by the rules. i use the formulas but im always willing to question and explore things.

As for the FP changing chaging the volume of air into the engine ?? thats just bizarre. the only thing i can think of is a change in air density. It would make sense as the weather is a good bit warmer.

Very little of what i know was taken from here. i think ive given back a good portion and i will continue to do so. But im honest and it not like i try to sell services here. id rather work for somebody else collect a 9-5 paycheck and have them deal with the BS.

anyways thats my peace.

As for Ski well better find out why the engine is using less air.

as for the firing strageys get a dual trace scope and settle it once and for all.

 

Funstick,

Something to remember here, and I guess I should have mentioned it earlier. The first log was done with slicks on the car, but on the highway. The second was with my street tires and 1st gear, the reason there is a big dip there is I have to let off the throttle some to let the car get grip again. But if you look at 2nd gear, it looks almost identical to the one above, with the same amount of air, and then this straight stretch was not as long as the other one and I had to leave off, hence the reason the 3 rd gear looks lower. Usually the car traps at 123MPH, and there I only went to about 90MPH so that is the difference there.

But with all that said and looking at say 5400RPM and knowing I was to the wood with the pedal, there is a notable change in PW from that of before.

__________________________________________________

Well Hector, then spew out the answer. I really don't think you have one.

Answer this: What is the reason for the decrease in PW at WOT?

If the answer was as easy as you think it is, then believe me, people would have shoved it down my throat, as you would have too.

 

.

 

https://www.thirdgen.org/techbb2/sho...hreadid=180840


.

 

Rrob,

If you pull any one part of anyone's comment you can twist them to mean whatever you like. So you have shown that you are crafty with words. Good for you. If you would like me to start pulling comments of yours that contradict stuff that you now say to do, opposed what what said before that is fine. But like I told the others. I be careful of what you wish for.

If you would read through the entire post where that was pulled from you will see at the time, people were posting contradicting formulas, and examples using my data. That remark was made in response to saying...OK. Now one person says I am, one person says I am not, and one person is saying I am making up the time with not opening and closing the injector to make that kind of power.

Sorry guys if I just don't follow your every beckin call and ask question to why you suggest these thing. I think that is why you hate to see me post here. But if you would open up your minds a little, you would quickly see that I am just asking questions to spark interest in people to learn more.

Unlike some of you, when I learn something I share it with as many people as I can, so they don't have to go through the trouble that I did and they can spend their time on something new that maybe will benefit me when I am pressed for time and don't have the time to research it myself. But I guess that is the way it works in a perfect world.

Guys you have to know by now, I only push back when someone pushes me first. Been that way, and always will be. You can clearly see I don't post in your posts unless I have something worth while to contribute or have something nice to say. Show me otherwise. There is not a one of you here that I would not lend my helping to tomorrow if the opportunity arose.

Life is too short to carry grudges.

 

They are YOUR words, not mine. I even listed the reference so anyone may see the content in which they are placed.

RBob.

 

Ski
I think that part of what hector is trying to say, is not that the extra fuel is displacing the air and thats what is causing the lower maf reading, but that the extra fuel is causint the engine to go way fat, and be significantly down on power, which is making the engine pull less air thru the maf, hence the lower maf reading, which would account for some, maybe not all but some, of the decrease in PW. In other words, it requires X amount of air to make X HP. If you now somehow (richen) lose some hp, it will require less air at peak rpm as hp is now less also. There may be some other correction going on, as some of the pe adders are related to % afr change , but this might be part of it.
Bob

 

How about put the fuel pressure back to the way it was before and do another log "when the rain lets up."

This entire thread, it seems to me, was created from ONE data point (the log you posted in this thread). I know I just graduated from college, but as an engineer, I KNOW that's not a good idea. So do as I said above.

 

Trouble is some audiences have enough intelligence to realise, when they're reading nonsense, so it just makes the author look petty or vindictive.

EFI content, I worked on doing some ecm rewiring today. Making it much easier to swap out ecms.

 

And you address this to me? Right.

RBob.

 

Bob (goneracin), that is what I said except someone couldn't follow it. Funny part is that he mentioned airflow a while back, so did Ed Maher and 88TPI. Apparrently that isn't the answer he is looking for. Kevm, you are exactly right, all this theorizing and worrying and perplexment (is that even a word) over one data log. Not only that, but to have all the equipment in the world (RT tuning and all) and not burn a PROM with the right info so the ecm could do the proper calculations. It's OK though, he is getting the answer to his question from GNJones through private email. Apparently GN thought the rest of us wouldn't understand the answer so he is sharing it with Ski privately and then Ski may share it with us he deems us worthy. Isn't that the reason for public forums after all?

 

Bwhaha you are one to speak of intelligence! You couldn't type an intelligible sentence in english to save your life. You should be ashamed that a guy named Pablo is telling you this. I constantly hear the line from Pulp Fiction "English Mother ****er, Do you speak it!?" when I read your posts.

You are a very sorry and pathetic man desperately trying to cling to this notion of importance in a mostly imaginary but definately unimportant world of playing with old electronic car junk. In the grand scheme of things no one gives a damn whether or not youve reinvented **** that engineers forgot about 15 years ago.

Your boyfriends merely play into your hands by justifying your useless existence. If someone could congratulate you on something it would definately have to be the ability to appear as though you were more helpful, knowledgeable, or useful than you really are. Im surprised so many people buy into it but then again alot of folks bought snake oil and tornado air inserts.


You may have thought Ski's post was funny, implying that he was an idiot and whatnot, but I definately think the irony of you saying that was far more humorous. Especially since from what Ive gathered ski is a well adjusted and well off family man while you are a sickly, lonely, and pathetic black ball whos life exists with people he primarily only knows from his computer screen.

Envisioning you on your death bed with only some dusty metal electronic boxes to give you comfort and company.. now thats funny, hahah.

 

Pablo,

That post went too far. You can count this as a warning ... and please don't do it again.

Tim

 

Humor mode,
You might try adding a little Fiber to your diet, and having the meat cooked first.

 

Humor mode,
You've may have had too much Fiber in your diet, might try adding some red meat in your diet.

 

I just skimmed through the post here so forgive me if I bring up what already has been..

Ski watch your coolant temp,I'm not sure if you have seen my post earlier about how much my PW changes with coolant temps.

Even though I have the same value in both coolant vs f/a, and openloop change F/A .
I still see about a 7% difference in PW from 140 and 170 degrees.
So you may want to look at that being I'm sure those tables you have probably left stock..

 

I thought Ski was offensive the first time I read him post crap like this, but you've set a new record. This is a near-perfect piece of disgusting hypocrisy. YOU'RE upset at Grumpy because he's abrupt with people who insult him and post crap? What's your excuse for being insulting? How many people have you helped?

You aren't competent to judge Grumpy's contribution- and if this is just an "unimportant world" why worry about what he posts?

This board is a terrific resource because it has had moderation which keeps it to the point and people who appear to think Delco's run on magic get disabused of their fantasy. I know people have asked for latitude to vent, but those who use the sort of abusive language that you and Ski have and refuse to apologise, we can do without IMHO.

Every time you guys post crap about Delco's you'll look like idiots until you apologise and show a little less hubris.

John.

PS, my "english" is pretty good, but seeing as you've thought it was helpful to criticise Grumpy's, I thought I'd let you know that the possessive of "who" is "whose" and "Im, thats, and Ive" all should have an apostrophe. But don't worry about it, I understood what you were getting at, just like I do with Grumpy, and we all make mistakes when typing on the 'net, DEFINATELY.

PPS, I thought the reference to "Rrob" not sharing information was priceless.

 

JohnL,

I might not be reading the same post as you, but it seems to me that all through this post. All you have is Grumpy, Hectorsn, yourself and a few others that are making all the disruptions. WHY?

What are you so afraid of? Look at Gumpy's posts in this thread. They are CLEARLY just posts to distract the conversation. I would be ashamed to even posts something like that in someone elses post. Even after a mod clearly asked him to knock it off, then he spits in his face with a rude comment right back. Yeah that is anything but respect for the board. And you have the nerve to say I am offensive. LOL.

You few people need to look in the mirror and see really who is to blame.

You really should get off the band wagon and do your own thing. But then again their are leaders and their are followers

Also you should know that many people feel the same way as I do behind the scenes, and you might just be suprised to whom some of them are

Again you posting worthless information in others posts is a clear representation of the level of maturity we are faced with here. I'm sure you/grumpy don't have the self control and will post yet another clear exaple of exactly what I just mentioned. Let all wait and see.

____________________________________________________

87_TA,

Yeah some more testing definately needs to be done and I am laying the groundwork for some of that. I found out what was causing the Romulator of mine to flake out after a few hours of tech support. That has been the next biggest hurdle besides the weather to getting some more information to examine. But some have made that out to look as though I did not know it. So just bear with me. I want to have some time to get more information and make light of some of these items that are present.

Did you get to a track again with yours? Hope its cranking where you want it to be. You had some nice gains with it recently...any more. I am now down to one track I can run at till I get my cage installed in July THey botted me again this weekend from another. Weather was terrible and traction even worse. In the 4th round of eliminations I did hook really well, 1.52 but had to hit the brakes hard at the end, after catching the nos mustang, I only went through the traps at 100MPH, and still had a 11.2 ET LOL. That might have been the 10 has I stayed on it through the whole run, but I surely would have broken out of my bracket. I got treed bigtime a .502 to my .523 on the nect run and was eliminated anyways so I wish in that last run I would have just stayed on it all the way. That was also with my heavy/super wide stock front wheels on it too. SUmmit screwed up my order and sent be Ford Bolt circle wheels.

But shoot me an email and let me know how you are making out. Talk to you later.

 

Ski, you talk a lot of crap. Every time you have something to argue or prove and think you have the answer, you make sure and give people the same amount of crap you accuse them of. Except, you come in with insults about anything you can. Later on when you realize that you may not be right you start out with comments like "all you guys want to do is ruin my thread". Yep, you're right, Grumpy and Rrob didn't even bother posting any tech in this one. How many times do you think they will offer their help, have you bash them, and then turn hipocrit and say, "let's keep the discussion all tech, please". Unlike you they seem to understand things.

Like the way you refused to understand that you were static on inj's. How many times and how many people and how many ways was it shown to you but all you could say was, "I can't be because I'm running low 11's and my AFR is at 12.8".

Like the way you thought your friend Corky was running lower fuel pressure than you because you were measuring the FP with the car running and the vacuum hose to the regulator still connected. And doesn't that mean you owe someone a steak dinner?

Like the way you said that MR intakes couldn't make anywhere near the torque a SR intake makes and laughed at a dyno chart when shown to you. Then you go off and say that a solid cam of the same specs of a hydraulic cam will make less power because of the lift and duration it loses due to lash? That means you could make more power with a hydraulic cam, why do you choose to run a solid?

And in this thread it has been pointed out to you that you are not pegging the MAF on the datalogs you showed and that will cause the PW to not be the same at the same RPM. All you say to that is, "I didn't change anything on the prom so how could it be different". Well it just occured to me that you also don't understand the way the PE% change works either. It isn't all RPM and % change. It is added to the base fuel map. BTW, that was the tech content of this post.

I know what you'll say now too. You'll say, "lets not do this he said, she said thing". Or, "you're just twisting my words". Or, "lets just stick to the facts at hand and talk tech". Why, so that you can keep on not understanding what people are trying to tell you. Yep, you've proven one thing, you can run 11's but you don't know why. You're faster than just about everone here but that doesn't make you any smarter or more open to suggestions.

 

LOL. it only took 1.3 hrs for one of you to do exactly what I said you would do. Thanks Hector! I figured it would be you that comes through in shining colors. LOL.

Again I will say this and maybe something is not clicking though into you few guy's heads. I have only had this combination together for 2 months and 90% of that time its been raining. And the other amount of time I have been having problems with my Romulator from Xtronics. They finally figured out what the problem was with it on Friday. If you would like to talk to George there, I'm sure he will fill you in on the details of the problem.

Let me ask you Hector. How many engines have you built and do they all run perfect on startup? Or do you think there is a learning curve when you put something new together? Your making a fool out of yourself with the fact that everything is not perfectly tuned, FP is not exactly set 100% to where is should have been etc. And that YES I do need to hash through some other things. Do you have a magic chyrstal ball that you look into upon startups of your engines and know instantly what every parameter should be set at? If so then I guess your running pretty darn good huh? LOL. If I only knew what I was doing maybe I could get my car running better than 98% of the cars out there, instead of the 90% I am at know. I guess I will have to keep my mouth shut and listen to grumpy, yourself and Rrob.

Sorry to have stepped on you fellas toes. :hail:

Is that better now? Can I be in your group too now. Just tell me what to do and say grumpy I can here at your becking call!!! Please pick me, Oh PLEASE!

 

Yep, just as expected. Now you begin to do your backtracking. Now the engine isn't at 100% tune but before you went off about how good it was, drivability, power, dyno numbers, e.t. numbers. But now it's not 100% because you have to do some tuning because the combo is so new. OK, that's great, before long and without any help I'm sure you'll be doing 9's. Better get a 9 second legal rollcage installed and every other thing you need to go that fast. It makes me laugh that you think you are such an innovator. Going where no man has gone before. Or like I said before, maybe you're a superhero. Besides you already have you're own club. Remember efituning.org. It got so bad over here for you and your friends you had to go and start a new group. I bet you're never wrong over there, huh? You are definitely a hero over there!!!

 

Hector,

Where did I ever say I was an innovator or coming up with something spectacular? LOL. Are you fabricating stories to make yourself look plausable here? Give it a break. Go back and read this post. You few people are the ones that turned it into a circus. I don't know something you already do know, then good for you. If you don't want to share it with me, that is great too. I am getting the help I need behind the scenes and each of the two people that offered the help both commented the reason they did not go public with the help is because of the flack they would receive from doing so. Guess some others are fed up with a few of the better-than-thou attitudes around here as well. Keep it up, and you might be the one that no one responds to when asking a question. I don't care if people help me from the board in public or behind the scenes. Its entirely up to them and frankly its nicer behind the scenes since after each comment I don't have to do this.

The people you are hurting is obviously not me, as I get the help one way or the other. Its the people that read these posts and have the same questions as myself, and are afraid to speak up for fear of being shunned. Trust me I was once there, now I am just fed up and ask what I want. Sorry if I am not at your expertise level and my questions are below you. LOL. But I would guess and I would love to hear how many people like the questions I ask as it may have not been something they knew either or something they may have not experienced and when the time comes they already know the answer. But in your ideal world, everyones should be all knowing, like the way you were born, Right? LOL. I think funstick put it best. He did not realize how little he really did know until he knew better. I suspect your summed up pretty good in that last statement.

Flame on my friend. Your starting to become my daily source of laughter. Sorta like puddy in my hands. LOL.

 

Go back and reread what he had written. He said he didn't believe he was static because he was running 12.8 AFR AND was able to make it richer yet by changing the injector constant.

If all you want to do is argue with the guy, do it in e mails or PM's. Showing your A$$ here is doing your reputations (some already in the crapper) no good.

 

Ah however it was richer only below where he wasn't static, his AFR didn't change above that point..

 

Which thread do you mean?.
He's also said he tried making it richer, and there was no change, other then an initial high spike.

I ain't going there with your mention of tuning WOT AFRs with changing the injector constant.

 

Reputation, that's the funniest thing I've heard yet!!! I'm worried about my reputation on this board? Matter of fact, I didn't know I had one!! I must be in that dream where I am still in high school. Wait a second, I didn't have and didn't care about my reputation then either. Since you guys like telling people to go back and read through posts tell me where you gather that I am trying to protect my reputation or being "embarrased". More than once I said "I don't care if I'm wrong or right". Seems to me those that do things "behind the scene" are worried about reputations. Being wrong is a part of life; accepting other people can teach you something is too. So why did I bring up those past threads you ask? Not so I could show I know so much but to show some people don't know as much as they think and refuse to learn from it. But tell you what, I will grant you your wish and stay out of your threads. Won't say a peep. I'll keep coming back to check what you say though as I thoroughly enjoy this soap opera.

 

This makes no sense what so ever. If you change injector constant enough in ANY tune you can make it go static.

Arguing for argument's sake is pointless..this topic is done for me.

 

From above..

RPM PW TIME AVAIL
2200 11.67 27.3
3475 14.31 17.3
4150 13.85 14.5
4525 13.43 13.3
4900 12.74 12.2
5125 12.52 11.6
5075 12.48 11.8
4975 12.67 12.1
5075 12.41 11.8
5275 12.13 11.4
5300 11.87 11.3
5450 11.23 11.0
5825 11.03 10.3
5850 10.57 10.3
6075 10.42 9.9
6175 10.39 9.7
6300 10.24 9.5
6375 10.08 9.4


Anytime that PW exceeds the time available, you are static. Changing the injector constant will only add fuel where there is time available to deliver it. Beyond that, it will not show any changes as you are out of the "window" to deliver it.


Ditto Hector..

 

Yes Saturn, it did get much richer in the lower RPM range, and this brings up an entirely different subject that maybe that extra fuel was carrying me over into the upper RPM range somehow. Because I did see lower AFRs when I was tuning very early on, but again there were other influences that may have caused me to be able to do that earlier on. I did not take every facet of information down to be able to give some reasonable explination and for that I appologize.

There are way too many parameters and differences to draw any useful conclusions from the little I know so far. I just wanted to post this to see if anyone knew what was going on. Some do, some don't. I can openly admit I did not know there were correction factors happening based off of the upper BLM cells. I antisipate on understanding them more.

So if some want to make me out to be an *** for that. Have at it. Its going to effect my day about as much as the rain forecast in new zealand is going to. Zip, zero zilch

For those that offered some useful help or suggestions :cheers: for those that offered nothing but useless, crap. Here one for you too. :Cheers:

 

Until you wrapped your enough statement to things, it did make perfect sense.

And your second statement is only partly true.

Humor mode,
Might try some more water in your diet to help with the electrolyte levels. Fiber level is also borderline.

 

Humor mode,
I see you've taken the higher fiber diet advise.
And, we finally agree on something!.

 

No dietary changes recommended.

 

Humor mode,
Might go for grilling the meat just a little more, LOL.
And just think your trying to explain things to a professional chip burner.

 

Ski,

You are the original thread starter here. Seems to me that this is turning into a p1ssing contest? Do you want me to leave this open or lock it? Choice is up to you since it is your post.

Tim

 

FWIW,

I have never seen or read or heard of any extra modifications to Pulse Width at WOT based on BLMs. In open loop at WOT I have always understood that the 165 and 730 do NOT make any corrections based on the learned fueling corrections that occur at part throttle. This makes sense because how often are you at 4000rpms at part throttle? PE Fuel in a MAF system is a result of MAF readings combined with the PE coolant and PE RPM table (pardon me if I am missing another PE here - just doing some quick typing and trying to get the point across). If you raise fuel pressure and the pulse width decreases then my first thought is that you are pulling in less oxygen. Notice my use of the word oxygen. However, other factors play a role here too ... like coolant temperature, throttle position, etc. All of these need to be equal. The easy test - to show that part throttle fuel corrections should not matter is to do a WOT run. Pull over to the side of the road. Pull the battery cable for 30 seconds. Reconnect. This will clear all the learned values. Now do the exact same WOT run in the same location again. Do this test and then determine if you really have a smaller Pulse Width.

Tim

 

With all the hate filled stuff you've let be said, you have just now come to this conclusion?.
Seems?, geesh.

Humor mode,
try some raw beef for a few days..... LOL

 

I was laughing pretty hard too, another post wasting bandwidth. What a surprise.

 

Yes the 7730 does make fuel correction based on learned fueling,
Run you car a little lean then hit WOT, you will see your BLM
stay at say 132 even though you are in PE.
It will only make correction if lean,not rich.