2020 Road Glide Special (with RDRS)

S&S 128 barrels and pistons

CR480 cam

S&S Cam Plate and Oil Pump

Feuling Vented DS

Stock heads

55mm TB

5.5 high flow injectors

SE heavy breather (soon to be MJK) aircleaner

Custom FAB28 mid-length exhaust.

Maximus tuner

This is a pretty average result from the tune. 113HP/134TQ. I’ve seen 117’s with better numbers. A few things stand out - scales on the dyno chart aren’t uniform and are on the wrong sides. As a result the chart looks weird and the lines don’t cross at 5250rpm like they should. Peak TQ lasts for about 1000rpm then drops away sharply. HP is terrible. As a reference A.P.E’s 128 stump puller with practically the same build (except 6.2 injectors) gives 135HP/151TQ (yes with stock heads and 55mm tb). So I don’t waste anyone’s time. I know I’ll get generally better figures with a full-length exhaust like a billet cat but I can’t run a full length as it has 14” rear shocks and I need the added height because I like the twisties. Basically, this build should perform a lot better than it does, something is seriously wrong so if anyone’s got suggestions...

Both Steve Cole of TTS and Fuel Moto using Dynavision had to develop workarounds for the RDRS on the newer tourers, unsure if the maximus tuner gas the ability.

DocGreen