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[hrdtail78]

OK, I'm the dumb cluck here. What is this MLVHA and where do you get it?

 A product that you can buy from Andy for $40.  Maybe that is why he keeps bringing it up?

[whittlebeast]

OK, I'm the dumb cluck here. What is this MLVHD and where do you get it?

Google MegalogviewerHD  You will find the guy that writes the software.  It is designed to read almost any common engine data log.  I use it on several different systems I tune on.  This time a year, I grab it several times a day on all sorts of systems looking at everything from suspension data to GPS data, EFI data ....

Andy

[hrdtail78]

I am also really curios on the info you are gleaming and using that we can't see with TTS.  I use all of the main tuning products on the market for HD. I do like the datamaster set up. This has more than what I could see with PC3 or 5 with the use of my direct link.  I still run datamaster with these. DL is a great system but the limitation are what channels you can see at one time.  I have big enough screens. But still. The more channels the smaller things get.  8-9 is the limit.  Besides the fact that the PV's screen is smaller than my iPhone and I can't see it live on my computer displays. How is collecting warm up enrichment at 45 frames a second going to help?

So.... What are you seeing that I can't, and how are you using this data?  Let us behind the curtain or your point is mute.

[whittlebeast]

Mostly the long term and short term fuel trims.  If you take the VE times the long term fuel trim times the short term fuel trim you get VE New.  This is the basis of all these autotune programs.  This is what is looked at to determine just how well the system is dialing in.

Later, we discovered the MAPxRPM/100 vs DutyCycle trick was a fantastic reality check on any tune on any system on any motor.

Andy

[FLTRI]

What tool do you use to modify the hidden information?
Bob

[hrdtail78]

I have asked about this math before.  2000 rpm x 100kpa/100 is 2000.  On a 145 cubic inch as it is on a 88 cubic inch. VS duty cycle.  Duty cycle of what?  5.3, 5.7, 6.3's injectors?  80% duty cycle is the same for all these.  Its 80%.  Pulse width might make more sense but wouldn't the injector need to be flowed first.  I don't worry about match injectors because I can tune each one separately on a HD.  Besides I don't know of any manufacture of injector that advertises their injector and the PSI HD's run at.

[whittlebeast]

Mostly the long term and short term fuel trims.  If you take the VE times the long term fuel trim times the short term fuel trim you get VE New.  This is the basis of all these autotune programs.  This is what is looked at to determine just how well the system is dialing in.

Later, we discovered the MAPxRPM/100 vs DutyCycle trick was a fantastic reality check on any tune on any system on any motor.

Andy

DM3 files open right up in MLVHD.  So do the data logs saved by Power Vision.  The hidden stuff in TTS software is not hidden when using MLVHD to look ad the same data.

[whittlebeast]

I have asked about this math before.  2000 rpm x 100kpa/100 is 2000.  On a 145 cubic inch as it is on a 88 cubic inch. VS duty cycle.  Duty cycle of what?  5.3, 5.7, 6.3's injectors?  80% duty cycle is the same for all these.  Its 80%.  Pulse width might make more sense but wouldn't the injector need to be flowed first.  I don't worry about match injectors because I can tune each one separately on a HD.  Besides I don't know of any manufacture of injector that advertises their injector and the PSI HD's run at.

You really need to try looking at the resulting plots in MLVHD.

When plotting MAPxRPM/100 vs DutyCycle, all of the things you are referring to are just constants.  Those things just change the general slope of the line.  As it turns out, if you have both MAPxRPM and DutyCycle in autoscale, you won't even notice.

DutyCycle is the duty cycle of the injector.  We can get into that stuff later once you get thru the basics.

Andy

[FLTRI]

"DutyCycle is the duty cycle of the injector.  We can get into that stuff later once you get thru the basics."

Yeah Jason, we can get into what duty cycle is once we learn some of the basics!
Bob

[whittlebeast]

Based on some of the questions over the past 20 or so pages....

AW

[hrdtail78]

I understand duty cycle.  That's why your math is suspect.  But hey, I like learning new stuff.  Send me MLVHD and I'll take a look.

My email is cnsspeedshop (at) hotmail.com

[Buckeye_Tuning]

You gotta remember that Andy is NOT the dickweed with MyTune.  Megasquirt stuff has been used for cars for awhile now.  MY understanding is Andy doesn't manipulate any of this 'hidden' data but uses it as a 'check'.  Also, Sporties are a HUGE difference from BTs, ECM wise.  I, also, remember, Andy and Steve arguing about VE NEW and all of that crap in 08.  Glens was very vocal about this IIRC.

Steve removed VE NEW because folks were misusing how it really works.  Me?  I don't miss VE NEW, because I understand that all the VEs from TTS, PV and SEPST are derived from AFVs anyways.  VE New is nothing more than the VEs in the table, thrown in a bottle, shook around with the AFVs and....  poof, we have a new VE TABLE.  I don't see where I, me, as the tuner, really needs to see the underlying conversions.

Andy, answer me this...  if I trust completely the algorithms TTS uses to convert VE to VE new, why would I want to look at that table to get a bike tuned up... especially a BT?

[whittlebeast]

I understand duty cycle.  That's why your math is suspect.  But hey, I like learning new stuff.  Send me MLVHD and I'll take a look.

My email is cnsspeedshop (at) hotmail.com

Sorry but you have to get the registered version to get the cool stuff to work.

Here is the link to the download page...

http://www.efianalytics.com/MegaLogViewerHD/download/

78

All you need to do to get tuning work is hook up any TTS or PowerVision to any customer bike and send them out for an hour ride.  In about 2 min you can bring their tune up on the screen.  If it comes up as a nice tight, controlled, nearly straight line front and rear, his motor is already well tuned.  My bet is the vast majority will be a mess and you can sell them a tune.

Andy

[FLTRI]

Andy,
Don't need to send the customer out for an hour to collect data to know the tune's a mess...2 mins on the Dyno and it becomes obvious to me and the customer.

Remember Jason and I have the tools to measure performance without riding the bike on the street.
Customers come to us BECAUSE the tune is a mess.
Bob

[whittlebeast]

My Sporty tune was a total mess and the bike was stock.  I was very disappointed with Harley.  At one point I had a set of 2-1 headers on it and the EFI was, what I felt was, intolerable.

Andy