the map from hell

[RUNRUOUT]

looking for a web sight or someone that can help me dail the base map of my thundermax in ,it really runs good now ,but theres allways room for improvment. any help is welcome

[Kainam]

Don't the T-max automatically calibrate itself?

[Dave63]

Originally Posted by Kainam

Don't the T-max automatically calibrate itself?

It does, but despite that, it has base maps that are added to to the T-Max ECU to get the bike "close" to what you need, then the T-Max's ECU learns from there with the use of wideband O2 sensors.

Go to: http://www.thunder-max.com/

Maps, software and firmware updates are available on line at no charge from T-Max, from their site. Check the paperwork that came with your T-Max.

[Kainam]

Originally Posted by Dave63

It does, but despite that, it has base maps that are added to to the T-Max ECU to get the bike "close" to what you need, then the T-Max's ECU learns from there with the use of wideband O2 sensors.

Right. But after a T-Max system has been running on a bike for awhile, wouldn't it already be running as good as it can? And loading a new basemap, wouldn't that force it to start the calibration process all over again?

[RUNRUOUT]

i sould be able to advance or retard my timing to get more performance on the low end or the top end.the self adjusting the thundermax does , i think,and stand to corrected is for air fuel ratio and is minute depending on the base map loaded?i have seen examples of people leaning it out in cruzing rpm range,for more highway performance. i would like for this thread to continue for all to add to so we can get to the bare bone of what can and cant be done with this unit

[RUNRUOUT]

Originally Posted by Dave63

It does, but despite that, it has base maps that are added to to the T-Max ECU to get the bike "close" to what you need, then the T-Max's ECU learns from there with the use of wideband O2 sensors.

Go to: Electronic Fuel Injection (EFI) and Performance Parts for Harley Davidson and VTwin Motorcycles

Maps, software and firmware updates are available on line at no charge from T-Max, from their site. Check the paperwork that came with your T-Max.

yes i have done that. it still is a very narrow collection of maps

[Dave63]

Originally Posted by Kainam

Right. But after a T-Max system has been running on a bike for awhile, wouldn't it already be running as good as it can? And loading a new basemap, wouldn't that force it to start the calibration process all over again?

I would assume that after loading a new base map, yes, the ECU would have to recalibrate all over again. Not sure why the basemap has to be changed, if it's a TRUE learing system.

However, if your base map called for a 14.7:1 a/f ratio through the entire rev range, that's all you'd be calibrated for.

With base maps with varied a/f ratios, (12's for WOT, and high 12'2-low 13s for cruising) then you'd have those base parameters set, and the machine would fine tune around that.

Just like with the old GM computers that had "chips". The ECU had a base set up in it, but the "chip" would set the parameters, like fuel and timing curves, for that individual vehicle.

[DJH1960]

The T-Max will set itself very well and can change 50% + or - from that map to better adjust to your style of riding. You can change the
base in your laptop and make it richer or leaner in certain RPM ranges, then you have to rename and save that map to load as your new base.
I'm not 100% sure how it works but that is what I gather from the instructions. My 07 runs fine on the base, I'm not going to mess with it. Good luck.

[bluey]

I'm no expert but I believe the TM auto tune only auto tunes the AFR in the map not timing! The timing does not auto adjust.

My setup is a 2008 FXSTC with 96B motor, TM auto tune, Hyper charger AC and RB LSR 2 into 1 pipe.

I leaned out the base maps Wide open Throttle AFR from 12.8 to 13.1 and 2k to 3k rpm cruising range AFR from 13.8 to 14.1.

I also advanced timing at idle throttle position to curb decel popping. I still get some decel popping but I expect most unrestricted hi flow pipes do.

[bluey]

I have some video files I found that explain a lot better than I can type. I will see if i can find them and post them.