![]() Or is it more complicated than that (ie will I also need a power commander and will I need to go to a dyno to get it tuned particularly to fix air fuel ratios and such) I understand that for the BrenTune flash it appears I only need an air filter and the computer tool and they will send me the file for my bike’s setup and I’ll load it up and be done. I’ve been considering getting the BrenTune flash on my Gen 6, but I hear lots of people say they are waiting for Woolich. Second pic is a 3D visual representation of one of the fuel maps (which is based on engine date in an Excel spreadsheet type cell format where the actual tuning is done).I’m hoping someone can help me with a basic explanation of the process of getting an ECU flash and tune. ![]() ![]() First pic is of the main menu of the WRT software and the menu items you can play with. Here's a couple of pic's from the tuning software I use just in case you might find it interesting. Like John says, it can be good enough for most riders but if you're trying to eek out another hundreth of a second on the track just a flash isn't the way to go. So yes, you are correct in questioning whether you can get the best tune with a simple ECU flash. And there are a lot of variables that can affect each tune such as location, ambient intake air temp, humidity, and differences in bikes even of the same make/model (as you mentioned. It will take multiple dyno runs with each run getting it closer & closer to the 'perfect' tune. I have to agree with Spyder saying the best tune will be with a flash/dyno combo, but the tuner needs to be experienced and want to do it right. Or could it be that the number of techs with real dyno experience are few and far between? If the answer is that it has to finished up with a dyno tune, then why not just install the proper Power Commander and go from there? So how can you get optimal horsepower from a mapped/flashed ECM if it hasn't been tested on a dyno. One 2001 GSXR750, had a milled head, thin base and head gaskets, degreed cams, BMC filter, and it had 12 horsepower less than a bone stock one I did the day before. I have had two that actually had less horsepower than they did stock. I have had many, many bikes brought to me after visiting a shop that used the autotune system and I always made them run better. ![]() Three same bikes basically all the same, with different exhaust systems will need three different maps to perform to their best possible state. Now if all you want is a map that comes close then maybe a flash will suffice, but having spent hours on one racebike to get the best performance, I know that if I took that map and put it on another same year model it may not work as well. In my world, working with every version of Power Commander ever made, including the Fuel Nanny (bet you don't know what that is), the thing that I know holds true is that for peak performance no one map fits every like model! If I have three GSXR 750's to remap, I can guarantee you that all three will end up having different parameters. How do they know what the ECM needs for peak performance? Having spent years tuning bikes on my Dynojet dyno since before fuel injection and then into the fuel injection world, a question immediately arises in my mind. From what I gather, you send your ECM to somebody reliable, and they change the fuel injection parameters. Yes, I know what flashing means, but I'm unsure how and why it is done.
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