[3000GT MR]

Originally Posted by V8bait

I can't make heads of tails of what he's trying to say either. Some kind of ridiculous rant about our cars being closed loop and that means things shouldn't be flat or something. But even with open loop tuning you can get things wherever you want, so closed loop has nothing to do with anything, but i digress. I'm sure he had a point somewhere in all that nonsense.

I've been talking about vanos and egr for valve cleanliness since like 2012, it's a great way to keep things cleaner. My last cleaning after 40k miles (at 80k) was cleaner than the first cleaning at 20k on the stock tune.

As for cyl5 timing corrections, people call it noise because that's generally what causes drops, knock noise. But it's not real knock, that's been known since before mhd. And there's lots of ways to eliminate it, vanos intake cam tuning being one (which can even effect boost you can hold on stock turbos)... but that's not rely a good fix imo. It's a bandaid, which doesn't help power, hurts efficiency etc. Torque effective divisor afr might help, or rpm, i don't know. I haven't had issues with this in ages, but it seems more common on IJE0S autos anyway which isn't what I am. Tuning to 13.5:1 afr also is not the answer, whether it clears the drop up or not. That's a worse idea than poor intake cam tuning.

I was only trying to help, people get to defensive these days. Running stoich on a boosted motor to increase HPFP isn't the correct way of anything. If tooners knew a thing or two and actually DYNO tuned they'd realize that leaner tunes dont always make more power especially on E85.

I always enjoy reading your tech posts.
We'll talk i have something for you to try, i didnt know you were victim of the cyl 5 also, and its not always the intake cam. I'll PM you on the dark side.

[BQTuning]

Originally Posted by 3000GT MR

I was only trying to help, people get to defensive these days. Running stoich on a boosted motor to increase HPFP isn't the correct way of anything. If tooners knew a thing or two and actually DYNO tuned they'd realize that leaner tunes dont always make more power especially on E85.

I always enjoy reading your tech posts.
We'll talk i have something for you to try, i didnt know you were victim of the cyl 5 also, and its not always the intake cam. I'll PM you on the dark side.

I was only trying to share a perspective. I am always open to collaborate. Just didn't like the swindling you did with a log of mine and overlooked everything else to support your point.

The stoichiometric AFR value for regular gasoline is not the same stoich for E85 or anything with more than 50% ethanol. Below 50% ethanol mix the stoich is 14.7, above 50% ethanol mix the stoich is different.

If you run a stoich of 14.7 on E50+ the DME will throw a CEL eventually regardless of how good your scalars are dialed in. As you get closer to 100% ethanol or the more you exceed a 50% mix you will start to trigger lambda codes. Why ? Cause the stoich is no longer 14.7

So it is incorrect to say that an AFR of 13.5 is near stoich if the stoich is not 14.7 for a fuel that has more than %50 ethanol mix. You were better off sticking to the too lean argument.

Now as to the comment about tuning on a dyno and lean AFRs for gains. Tuning on a dyno is not the reality of how your car will perform in real world conditions "gear to gear" . It's a very good tool to get a starting point but I never "rely" on it as a standard tool for tuning as the car is not under true load. Furthermore I do in fact use dynos for some basic tuning and then they are finished in street tuning. So i have no idea why you made such a false insinuating comment.

You can absolutely make power in AFR tweaking but it depending on how you are using the AFR.

[V8bait]

Originally Posted by 3000GT MR

I was only trying to help, people get to defensive these days. Running stoich on a boosted motor to increase HPFP isn't the correct way of anything. If tooners knew a thing or two and actually DYNO tuned they'd realize that leaner tunes dont always make more power especially on E85.

I always enjoy reading your tech posts.
We'll talk i have something for you to try, i didnt know you were victim of the cyl 5 also, and its not always the intake cam. I'll PM you on the dark side.

I'm not a victim but seems like a lot are, when i see it crop up i never paid much attention to it. I wasn't arguing with you i agree, was just posting some things I've observed. Too annoying to quote you and others in the thread so my post bounces around, apologies. I do that a lot, quote somebody and respond to like 4 things from 3 people. It's my A.D.D.

As for my buddies post on stoich vs afr tuning, he's confused again. To anyone reading who doesn't get it, the dme targets lambda. To calculate afr you have to know things that the dme doesn't know, but to simplify tuning, the xdf files use a mathematical conversion from lambda (which is physically read as a chemical equilibrium value from the O2 sensors) to a calculated gasoline afr, since everybody knows gasoline afr. It's not really important other than what you put in as stoich for gas (14.67:1 gasoline afr) actually converts to lambda target of 1 for the dme. It doesn't give a fuck what fuel you have. Sorry brah.

[NA55]

Any updates on this?

[Redbmwm33]

I seem to have this same issue