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It all boils down to this, I do not have a financial interest with the results. End of story.
Not quite...You have no results, no testing, just opinions formed outside the laws of physics to make you feel good about the modifications you have performed to your car.Enjoy
My knowledge is limited to the older Bosch mechanical systems - but I've seen the design tolerances they work with and these guys dont just pluck numbers out of the air - everything - every single specification they give is exhaustively tested, and if you stick to them, the system is bulletproof. Venture outside those parameters at your own risk.
I speculate that the pump, injectors, pressure regulator or the rail itself are outside of the design limits and could fail.
Actually, the pressure limiter valve (And subsequent fuel return valve) are not touched, hence the rail pressure remains operating up to, but never beyond the maximum set by Hyundai and Bosch.If fuel pressure exceeds maximum operating tolerances, then the return valve will open, relieving the excess fuel pressure back to the fuel tank.Oh, before anyone has a hissy fit about breaking laws of the universe, upping fuel rail pressure does not equate to more fuel being squirted into the engine. (This is only true if the injector pulse width remains constant, like in a mechanical diesel pump system)Since we are dealing with a electronic injector (Much like a fuel injector in a petrol engined vehicle) they can by programmed to open for longer periods of time (More fuel per time frame) or opened for less time (Less fuel per time frame)There is a very simple way in changing the injector pulse width (Well, three out of the four pulses per injection cycle, per cylinder) without resorting to cracking the ECU.Though, don't listen to me, I don't know what I am talking about (Everything I have posted thus far on this board I have no idea about!) , haven't done any testing (Over 30,000km thus far) have no results (More power, better economy and a cooler running engine shown to many on here) Yup, I have no idea, so I must be EXTREMELY lucky with everything I have done thus far!