Hrm, have you ever used the search function, n00b? I have ten times your posts here, used to be the engine management forum mod, and got sick + tired of constantly being asked to repeatedly explain the same damn thing over and over again by undeserving children too lazy to perform a simple search. I've posted the answer here no less than ten times, on Honda-Tech no less than twenty five, and on pgmfi.org *once*. That's pretty telling of the intellectual distribution of said forums.

Uninsert head from *** and figure it out your goddamn self. I gave you a heads up, but do keep in mind I don't owe you a thing. Why should I go out of my way to repeat myself like a broken record for your edification, to better you against your will? Screw anyone who doesn't actively seek nuts and bolts answers.

Hello, n00b.

I did all the beta testing on Ghettodyne, for Mike Robichaud and George Ricketts. You know - what became TurboEdit? Ever heard of Uberdata? Yeah, I did all the beta testing for it until it went public after v1.2. You only know about "ECU chipping" because of people like me, and I can assure you that your personal experience is a pathetic empty thing.

So, yeah. You kids need to STFU and listen. Stop making assinine commentary about using D16Z6 maps with AFC hackshit on B16's, and generally parading your ignorance. Use a goddamn search function. This is yesterday's dirty underwear - nobody wants to smell it anymore.

 

well if your not gonna post usefull info in this thread, dont post useLESS info in it either, i dont care if i dont post much on this forum or not,big deal.you obviosuly have more free time than me, so, you might as well repeat yourself.

 

haha JD is getting pissed off

 

lol, this "Joseph Davis" guy probably never chipped an ecu in his life. Way to call him out on it and expose him for the fraud he is :P

 

werd

 

 

Well, "Carlito," I haven't been home for the last five days. I'm sitting @ the shop computer, my hands are dirty and covered in cuts from my luxuriant, pampered, and affluent lifestyle where money is not a problem, and hard work is something I pay other people to do for me. I woke up this morning at 6 am, packaged and shipped all the eBay ---- for the shop. Then I drove a half hour to Rexel to pick up 2" ID aluminum conduit that makes nifty charge piping, and while I was in ashEVILle I retrieved my chop saw from Wes @ Honda/Acura Service Center + burned him a copy of his last tuning session. Dropped by Redline to talk to Jason, arrainged for a BikiROM USB multiboard for the GTi-R swapped Sentra's ECU (which I wired, and set up/tune both current and future engine management, all based on reverse engineering the stock ECU) and sourced him a '00 B15 gearbox with LSD (hard to find unit) for said car. Now I'm back at the shop, finishing the arduously difficult to construct pulse converter collector for my CRX out of 13 gauge stainless - think split turbine style collector with ejectors. As soon as David gets off the TIG, where he's constructing the aforementioned aluminum charge pipe for a Mitsufeces, I'll weld it together and start sand bending the runners. Before I'm done, David should have the DSwillM back together and I'll get to drop everything and hook up my wideband/laptop/Ostrich to the pile and take it down the road and make sure the .bin I lovingly constructed in a hex editor (no ****** GUIs, son) works correctly. You see, it's running a 3" GM MAF with a black box frequency converter I built for it which does a simple frequency rescale of 1/4, which puts it well within the acceptable range of the 1G Mitsufeces hardware/code. Sounds simple enough, but I probably have the MAF tables (which I constructed out of whole cloth) a little off and it requires a little real-time bitchslapping. Hopefully I'll be in bed before 2 am - or should I say a cot here at the shop. I don't have to be anywhere until noon tomorrow, so I'll get some sleep tonight.

So, to fill my odd moments, and distract myself, I surf the bad internet. I find a stupid thread about how to make stupid AFC hackshit work. I tell people how silly they are, and to use the search function - perfectly reasonable since AFC hackshit threory is a minor dissertation. Of course it turns into a big fat melodrama where everyone who has to ask for online help before they perform simple tasks (as opposed to thinking for yourself) scrambles around trying to save their tender little egos. You're all a bunch of illogical little twits, you know that? You never ever in a million years ask "how do I make this work?" You ask: "How does this work?". When you know*how* something works, when nuts and bolts answers are what you seek instead of quick fifteen minute band-aids to your generally high level of ignorance, you don't run around online asking stupid questions that have nothing to do with anything.

As for my tone and scathing commentary; the only way to make internet children close their mouths for five minutes and think is to make them feel stupid. Some slink away, some run their mouths incessantly, some get dead dog determined to show me up and start thinking with their brains - guess who eventually gets my respect?


Well, since you whiny whiny little -----s think I should repeat myself for the fourteenth time in ten minutes, when I have new ground I'd rather break, and since me going over basics for the edification of your incapable-of-finding-the-search-function-or-infact-your-***-with-both-hands selves is FAR more important than my current ongoing manifold theory + design e-dissertation *or* noveaux low-buck DSM setups *or* heaven help me making a single solitary dollar to support myself or my family,

HERE: (cut and paste from early '02)

Almost two years after I start bitching about it, here's what I hope is a decent explaination. Pester me with Q's if I'm a tard and can't explain it properly. It's late, I'm tired, and I suck - I hope I've excused myself sufficiently in advance.

Accept these as facts, for speed density EFI anyway:

- MAP sensors indicate engine load. The more load, the more Manifold Absolute Pressure on the engine, the more fuel it requires. Under boost you need a whole lot of fuel, right?

- AFCs manipulate MAP signal to alter fuel. By lowering MAP voltage, you aim the ECU at a data location tuned for a lesser load, and you get a bigger set of injectors to act a lot like stock injectors. Making, say, the usual DSM 450cc behave like 240cc injectors for your off boost driving.

Let's have a look at a fuel map off of one of the freeware Honda ECU tuner applications to help visualize how this works. The numbers down the left hand side of the map, the Y-axis for you boring math types, are familiar old RPM values. The numbers across the top, on the X-axis are MAP input translated into mBar. For those of you unfamiliar with mBar, 1000 mBar is 1 Bar or 14.5 psi... 1055 mBar is 14.7 psi or atmospheric pressure. Looking at this B16 fuel map, you go from vacuum on the left to atmospheric pressure on the right.



I went ahead and filled in the blank spots below the stock mBar numbers with pink numbers to represent where on the fuel map an AFC sends you with it set to a -40% fuel cut. Pink is a very good color to use for this purpose, as this is a VTEC fuel map. :thumbup:


Now, guys, if you've choked all that down, before we look at the ignition map let me remind you of one single solitary fact in re speed density EFI:

- Ignition maps aren't like fuel map, bitches.





From this we conclude that if you transition into boost at 4000 rpms, you are at 39 degrees advance with the AFC hack where the stock crossover is at 24 degrees. Jacking your distributor forward 15 degrees before you hit boost is a great idea! Hey, let's buy an MSD BTM, and it'll dial that 15 degrees ar 0 psi boost right out, won't it?

Well, you want to be safe so you only run a low boost setup, 5 to 6 psi. Whatever the hell low boost has to do with safe, I keep thinking quality of tune and power output are your yardsticks to measure engine safety by... but what do I know? So you run 5 to 6 psi... ~1400 mBar. With the AFC hack you are at 31-32 degrees ignition advance, around 7 degrees advanced from where you would be without any ignition retard under boost with any other setup. Let's not even take into account the higher load your engine is under, and the heat and stresses involved. My, the sweet sound of detonation in the morning!

Now, heaven forfend you should have paid me a lick of attention when I advised people that running as much boost as the stock Honda MAP sensor is capable of reading is your route to safety with the AFC hack. Note how you end up within a degree or so of your otherwise normal ignition timing when you transition into boost. You can't help the transitory high ignition advance you pass through, but with how quickly turbos spool in most cases it doesn't matter; you spend the bulk of your time during the boost event at full boost, and if you have retarded your distributor 2-3 degrees you should have adequate ignition retard under boost.

I'd like to thank the following for inspiration in making this post: Del Slowest, insomnia, too much coffee, a complete and utter lack of respect for VTEC, and Speed Phreak's LS powered goodness:





NOW SHUT THE ---- UP!

 

Classic

 

How you like them apples biatches?

 

hehe, if i were ever a mod id be soooo tempted to run around and change all the post titles of threads like this to "tell me what i want to hear or ill argue with you about something i dont comprehend"

oh yeah and speedphreaks LS powered crx is some serious hot ----