There are a few ways to resolve this "issue", but first let me say that I have not seen any evidence of anyone bashing another product, only questioning their use of a second party product (Bosch) based on their understanding/expertise on the proper application of said product. One could certainly read between the lines and come to a different conclusion, but unless I missed something, nobody said anything bad about another manufacturer's product, directly. That would be, at best, unwise.
So...1) Somebody could produce documentation that proves that Bosch DOES approve of different methodology to properly calibrate their sensors...after all, Bosch does not have a dog in the "tuner" hunt, they just provide a component, properly calibrated from the factory, with recommendations on what NOT to do, based on what I'm reading. If someone has found an equally viable way of proper calibration, I can't imagine them having an issue with it being done that way, if it in fact works. Generally speaking, there is usually more than one way to skin a given cat. 2) Somebody could produce documentation from Bosch that says NO other way of calibration is viable, or as accurate, as their methods. 3) Everybody could STFU and get back to the problem at hand, which is the fact that the OP sensors are obviously not optimally placed in the exhaust flow, at least on one pipe. I'm no tuning Wizard by any stretch of the imagination, but I DO know a little something about proper placement of sensing devices and their importance in the proper operation of whatever logic device they feed data to. Ideally, the sensor will be placed in a straight run of pipe, midstream. It CAN make a difference if it is sensing on the inside or outside of a curve, because the flow is likely to be different in those locations. Insertion depth also makes a big difference. Both situations are happening in this particular application. So, whatever can be done to address those two things is what needs to happen, as best as they can be addressed, given the constraints of the application (cramped space on a motorcycle).
I believe Steve was right on the money when he mentioned the poor job many pipe companies do with bung location. Some of these companies make no bones about the fact that they sell based on looks or noise making ability or supposed horsepower gains, and they don't really worry too much about the real science. You would think they could at least follow the recommendations of the sensor companies for things like depth and angle of the bung, but obviously not. They don't even have to do the science, just follow the fairly simple instructions Bosch makes available.
As for the debate about modifying someone's product for use in your product, I don't think this is the first time in history that someone has done that. I haven't taken the time to fully study and understand DTT's or RP's decision to cut off a perfectly good connector provided by Bosch, but as long as they recalibrate the sensor I don't see the big deal. At the end of the day what's important is whether or not the system works properly. I haven't seen any evidence in this thread so far, one way or the other, concerning the accuracy of the systems assuming the sensor location in the pipe is correct.
Seems to me all the chest thumping and bad mouthing aimed at the guy trying to help is misdirected. The bad mouthing looks like it should be aimed at the folks at D&D. If folks have personal issues with the guy trying to help, that's too bad but it isn't helping fix the problem porthole brought to the table.
Good luck getting it running right Duane. I think all the work you've done bringing this problem to light and posting pics has been of great value to the group, as have the contributions of Steve and glens. Some of us have learned some good stuff and we appreciate it.
Jerry
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Topic: O2 sensor color doesn't match exhaust valves (Read 12788 times)