Hello, this winter i will be adding lextek headers thus deleting my cat and aleready have sc project cone slip on. And i know i should do something about the fuel to air ratio and solving the lack of back pressure by re mapping the ecu or something else. And when i went into this rabbit hole i found two tune mechanics at my location that do ECU flash on a dyno and are able to install as an add on rapid bike module evo or race. Is there anyone with same bike who has it installed and has some expierence?
My questions:
- should i get just ecu flash or buy the Rapid bike too
- is it worth the money
- what i liked is that it should be able to auto tune, and because i have two slipp-ons one sc project and akrapovic which is much more silent. I plan on switching them when going into countries with stricter Db levels laws.
- Is worth just for street riding and the occasional track day
- what is the benefit over just ECU flash
- does the EVO module have rev limiter abilities
Thanks in advance for sharing any experience, i know there detailed thread about 5-6 gen. But couldnt find anything on newer 8th gen.
ECU flash is always better than piggyback systems like rapid bike or power commander. The tuner has full control over IAP, TPS and ignition maps. Rapid bike Evo can only do adjustment on the TPS map and the racing variant can do TPS and ignition map. The IAP map is important as it controls the low load scenarios, which are hard to adjust properly trough the TPS map alone.
Rapid bike's autotune is basically useless on my 6th gen. I've tried using it with stock o2 sensors and wideband o2 sensor add-on. I'm pretty sure the same goes for the 8th gen and any other bike. The algorithm isn't advanced enough.
The differences in the fuel map for the akrapovic and sc project or any other straight through muffler of a similar length are very small and thus irrelevant. +/- 3% fuel trims are not worth the time and money. If the fuel map is developed properly and you're achieving the target AFR with one can you'll be in the safe range and within the power plateau of 12.5-13.5 AFR with the other can.
Run to run variance is often bigger than the difference one can to another makes.
If the tuners in your area are reputable do the ECU flash, set it up with the can you'll use most of the time. For occasional low dB needs put the akra on and don't worry about it.
Rapid bike's autotune is basically useless on my 6th gen. I've tried using it with stock o2 sensors and wideband o2 sensor add-on. I'm pretty sure the same goes for the 8th gen and any other bike. The algorithm isn't advanced enough.
Nah - RBR fixes a lot of the 6th gen's underlying issues very well, that I haven't otherwise been able to completely resolve since I bought it in 2003. Couldn't pay me to remove it from my bike.
I love mine as well but the autotune clearly doesn't work right. I have the Bluetooth dongle as well so I can data log the AFR, RPM and TPS. The autotune reacts to throttle input enrichment by enleaning the mixture. Then it tries to correct this by going overly rich in the next cell. Then you get -15 in one cell and +15 in the next one. Spiky, silly, useless map.
I've done the data logging with the dongle, filtering and averaging the data in excel and produced the final map for my bike. It doesn't resemble the mess that autotune created whatsoever. The logs confirm that the AFR is as targeted, the bike feels good. With autotune map it just gets worse and worse as it does it's thing, to the point of stumbling and misfiring because it runs so lean.