So other members can know the 'why' this is a good thing.....

Back in the day when all of the bikes were 'open loop' and had no O2 sensors, a tuner would simply manually massage the tables to smooth out those camel humps in the graphs. Bike would perform better and all was cool.

Now, with 'closed loop'... one can NOT massage the graphs and keep closed loop, because if manually done, we will have taken the VEs from a place that the ECM itself made (using v-tune) to our own. One needs to use the EGR tool to make the ECM itself make the corrections so that the ECM is 'Happy" with the numbers involved... something that cannot be done if we manually change them, because if we use manual numbers, the ECM will hunt and try to apply fuel or take away fuel when hitting these areas... and basically the ECM could get 'lost' and not be "Happy' at all.

The tool works, but is what Wiz says... trial and error.

 

...and that is called.... (cough) getting a little Head.


Bwahaaaaaaa

How ya been WT?

 

Matt... darn it man... it's easy to skip over someone's question here. Sorry about that.

You need to chat with Mayor. CLICK HERE FOR A GOOD READ

-wiz

 

Wardenbf...

Not to worry about what file you select for the 255's. The MT8 calibrations have a cam selector. You have a choice of manually setting the IVO and IVC depending on the specs or you can run the Cam Analyzer Data.

Just pic a calibration that is as close as you can get to your bike even if it is darn near stock.


-wiz

 

OK... tried to pick up the hanging chads while I had time... got a bike coming in a few that I need to experiment on.

Guys... if any of us missed any questions, chime in again. Way too many pages here to look back.


-wiz

 

Thanks WT will do!

 

Hey Wiz.

I think I am going to go down to Florida with Durwood and his new RG.

Should be fun!

I am, myself, playing around with EGR tables with some help from Hrdtail78.

I hope all is well with you and yours, too!!!!!

 

Mr. Wizard, and Lone Wolf, I am installing Vance and Hines power duals today. Decided to get rid of the Cats. So I will be starting over. Can I use the base map I already have and set all to closed loop or shoud I start with DTQ009-03-A0.MT8 or DTQ044-03-A0.MT8. I will have Kuryukan Streetsleeper II Breather, Vance and Hines power duals, and Rinehart 3" slipons on the 2012 FLHR. I have learned a lot with your help on the first set up. I will try and do a better job of gathering data at the lower RPM's to work with the EGR values on this try. and I am thinking of doing data runs and look at ping and maybe work of spark settings. I have worked with Rig capture and monitoring systems with Lynix and windows based systems and we try and do minimal reflashing on these units. Can a person over do the reflashing on the Harley ECM's? This is a fairly large learning curve. I have learned more off this Blog than reading and rereading the TTS manual. I would realy like to go through a class on this. Or maybe someone could make a DVD class on the TTS Mastertune. Thank you.

 

Before we go any further... you know the power duals are for looks and show only, not a performance pipe. The first thing you should do is investigate the placement, angle and depth of the 02 sensors. If these three factors aren't correct you will have nothing but tuning issues especially on bottom end.

Not knocking V&H, just speaking from experience.

 

Ok, what i was doing was getting rid of the Catalytic converters. I figured that would help some. And not have to worry about plugging up the cats. A shop here in Woodward known for their performance bikes is doing the install. (Covingtons).