Has anyone got any specific details on the secondary openings or the low power map in general outside of it being apparently limited to 75% power?

Recently i started experimenting with the low power mode to see if i can still mess with my friends busa on a low power setting , though through my messing with said mode i've come to the conclusion that it still boogeys properly quick and is actually setup in a very clever fashion.

following this curiousity i did a single run on said mode and i severely doubt the 75% power number. but the friendlyness in first has spurred an interest in blending the maps together to keep the smoother power curve through most of first and ramp it in where i can use it.

ive heard of people doing this but never saw the value until i needed to actually be consistent lol.

* Last updated by: killernugget97 on 4/23/2026 @ 5:00 AM *

Has anyone got any specific details on the secondary openings or the low power map in general outside of it being apparently limited to 75% power?

I got nothin' but it would be interesting to
see the results.

I had A, B and C mode on my Gen2 busa since 2009. I left it in A mode, full power. Yeah, you can tell the difference but if you learn A mode, you know what to expect. I rode in a downpour in A mode. I don't see anything wrong with being extra careful by using the lower power modes but it's not hard to do with your wrist.

i've been pretty much using this bike as a daily commuter / giggles bike for the last 3 years and never saw a reason to consider using low power outside of this sudden bout of testing. the bike is smooth enough in normal operation to not need it , but in a race setting the quality of my launches swing like a pendulum mainly due to me getting too happy and riding out wheelies.

side note though is i figured out the bike won't let you try to change modes while under a certain amount of throttle but cruising at speed you can change it to your hearts content. the bike suddenly lulling and rising in power from me spamming the power mode buttons is an amusing observation (AFR also fluctuates from this).

i've been pretty much using this bike as a daily commuter / giggles bike for the last 3 years..

Who are the ecu flashing guys that frequent this forum? Romans does flashes right? Who else?

Romans was the only tuner you should trust who regularly participated in the forum. It's been 16 years. He will pop up every once in a blue moon. I think he's totally out of the tuning game at this time.

When I had my bike built by RCC turbo's late 2016 Rick Romans did the flash for me. I've since had a second ECU flashed by Richard Peppler at RCC turbo's who developed his own flash with a safer soft touch rev limiter. I keep the Romans flashed ECU as a backup but have never tried both on the same day under the same conditions. I'm quite sure RCC will still do a flash though I'd have no problem trusting either one.