i was never asking for an exact value. that formula would have solved a good bit of hastle earlier. thankyou.

 

I just entered my username, password, and email and that was it.

 

exactly, where as 95% of all forums, not just automotive specific, are open and can be searched and viewed. PGMFI, you can not. unless you are a member of the forum.

so the book list is only available to the users of pgmfi.

 

You had to make an account for H-T, same thing as making an account for pgmfi.

 

http://www.megamanual.com/begintuning.htm

readding a bit throughout the day. this may even help some of you guys.

seems to noate that optimal power is achived at Wide open throttle with a 12.5 to 1 A/F ratio. Optimal Economy is at 14.7 to A/F ratio.

 

12.5:1 AFR for max power is kind of a rule of thumb. It is not always the best case. 13:1 is another common rule of thumb for "max power" output. The only way to tell for sure is to put your car on the dyno. Run it and tune until you find the AFR that makes the best power and isn't going to harm the engine.

As for economy, I have tuned a few cars with 15.XX:1 at low load areas and idle. They remain safe from detonation and the MPG on a boosted car is pretty good. An idle and cruise AFR of 15.XX:1 sometimes makes up for the 11:1 WOT boost AFR's over the long run. depends on if hte owner can keep their foot off the gas. However, economical isn't always the most environmental. That is really where 14.7:1 comes in. It's the best all around AFR for a good balance of power, economy and emissions. Start to go ether way north or south and the balance starts to shift.

 

Thankyou.

 

I just read this whole thread. To the OP, I think you are too smart for your own good. I'm not sure if you have common sense. But all the people that answered your questions are right. Also, if you are too pertinacious to look at another forum (PGMFI) that has all the answers you are really senseless. That site has answered most of my questions when someone suggested it. Unlike you, you must be a TOOL!

 

PGMFI is owned hy hondata. free information should not be censored. NO NEW TECHNOLOGY will come from there.


I picked up my full moates setup about a week ago with a wideband. going to pick up a pr4 obd1 and p28. i have been playing with some trashed p06, desoldering and practicing.

just installed an lsd trans on my z6, so a cam upgrade is next. then a better tune.

 

Guess what??? Crome was created from PGMFI. So you don't want to read their forum but use their technology.

 

Hondata does not own PGMFI & ONE PERSON (John Cui) created Crome while he was bored in college. Yes he received help and code from individuals on that forum but he is the one who created Crome

 

unfortunately, hondata owns controling percentage due to a leak of code that was copywrited, and hondata asked to be reimbursed for the number of copies that were leaked. unfortunately pgmfi could not afford the mass amount and was accumulated by hondata.

i have just downloaded crome and begun playing with it. are there any crome or honda specific tuning books that i can acquire?

 

From Hondata.com

The ideal mixture at full load (for a non boosted engine) is a matter of option but generally lambda 0.88-0.92 (air/fuel 13:1 - 13.5:1) produces the most power. Measurement of the mixture is best achieved with a wide band lambda meter. An exhaust gas analyser may be used, but tend to have a slow response time (although they are more accurate than lambda meters).

With forced induction the ideal mixture will be a richer under boost. Generally lambda 0.82-0.86 (air/fuel 12:1 ö 12.6:1) is suitable for a boosted engine. For engines with a detonation problem richer mixtures can be used.


How is this calculated for N/a and F/I setups. if it is not calculated, is it proven to be the best rangge over the years of tuning?

 

PGMFI is not owned by Hondata. Get that through your skull. They settled the dispute, with Hondata getting moderator rights and the ability to delete threads that violated their intellectual property rights. That's all. PGMFI is in every respect independent, their users are now just under a closer watch to make sure they don't break the law.

Regarding the AFR question, of course it's determined by years of tuning experience. People don't just pull that stuff out of their @$$es.

 

okay, so at minimum, it is censored. i will pass.

 

No.

People on the forum were violating Hondata's intellectual property rights. Hondata has a legal right to make sure that that doesn't happen. Rather than have to go through courts every time a dispute happened, Hondata was given moderator priveliges to shut down threads that violated their company rights. Only illegal threads would be deleted. Copyright control =/= censorship. In fact, copyright laws protect IP creators so failure to protect copyrights actually indirectly leads to censorship. I'm not an expert on the subject but this is my understanding of what happened.

The consequence, as far as I can tell, is that much less development happened on PGMFI after that. But the information contained at the site is still good, especially for people using tuning freeware like Crome.

It's your loss if you don't at least use PGMFI archives to answer your questions, so that's up to you. But you should at least be aware of the facts.

 

Just go get it professionally tuned.

 

Omfg your a tool

 

that comletely goes against learning how to do it myself.


**** you. i just spent 440 on my setup from xenocron. youll get no more of my business.

 

lol oh sh*t

take the money and run!

 

Chris is a good guy. He had a reason to say that!

Besides I wonder how you're going to learn without entering pgmfi. It's like the gateway to tuning. Lulz.

 

Just because you spent money with me doesn't mean I cant call you out when you are being FOOLISH...then I would be "sensoring" myself which you are already implying you are against so you cant have it both ways my friend.

Stop thinking you know everything, listen, learn and stop being a big shot...when someone tells you to go to PMGFI to learn, listen to them. For years and years and years there was upteen billion posts of helpful insight on that website...they didnt get erased so its all still there.

 

You got quite a few guys in this thread telling you you're a ****ing moron. Take a step back and read this thread as if you were someone else.

Or just drive off a cliff.

 

xenocrom still will not get any of my business, and i will detour anyone who ask.


Why is it that ignition is soo high on decsell from high rpms?

 

If you are so against Hondata what are you doing on hondata.com?