Thundermax Fuel Adjustment Question

[hdrider1]

I have a 107" Road King (2010) with Tman Heads, Tman Cam, D&D Exhaust, and Thundermax controller.

A base map was provided by Tman that generally lists about 13:1 as the AFR target at WOT -- so far so good.

A few weeks ago at Myrtle Beach bike week I had the bike dynoed and the AFR for the dyno run showed about 14 to 14:5:1 at WOT. I believe the issue between the measured AFR and the Target AFR is the fact that I haven't had enough time at WOT to let the Tmax tune itself to the set target AFR of 13:1. Running long enough at WOT for this is not a real easy task on the street (at least in my area).

I would like to get the basemap fuel curves at WOT a little closer to the correct amount for the target AFR, but want to know how much I should richen them up to change it from 14:1 to 13:1. For instance, at 4500rpm at WOT the injectors are at about 50% (I have 5.3g/s injectors). How much would I need to increase the 50% to change the AFR from around 14:1 to 13:1?

Thanks,
Dennis

[JD]

Easiest way is to have the adjustment made while on the dyno. In all honesty, 14-14.5:1 at WOT isn't really that bad or far off. You will get a tiny bit more power down around 13:1 but on a street bike IMO it's not worth fussing over. YMMV, yadda yadda.

[hdrider1]

Easiest way is to have the adjustment made while on the dyno. In all honesty, 14-14.5:1 at WOT isn't really that bad or far off. You will get a tiny bit more power down around 13:1 but on a street bike IMO it's not worth fussing over. YMMV, yadda yadda.

I appreciate your input, but a main point of the Thundermax is to avoid the need for dyno tuning. Also, if you talk to any of the Tuners, 14 to 14.5 is way lean at WOT -- that AFR is more appropriate for steady state cruising for good gas mileage. The generally accepted target for WOT is 13:1. So I guess we disagree on this.

But that really wasn't my issue or question. My concern was getting the Target Thundermax WOT AFR to match what I observed at WOT on the Dyno without having to go through the full auto tuning process. I've found that you can change the actual Fuel Numbers vs throttle Position for the Thundermax to get the avtual AFR closer to the target AFR without autotuning -- kind of a shortcut path and similar to what's done with a SERT. If I'm off a little bit, no big deal because it'll eventually autotune itself back in.

Thanks for the response.