LOL an acceleration governor LOL

That's gotta be the best excuse for poor performance from a VR6 that I've ever heard... Acceleration governor ahahhahahhah...

Speed governors are in place for safety... That is if your motor can even push you into that territory... Whatever speed u might be talking about...
The main reason governors are used is because the tires that come on the car cannot sustain high-speed driving, unless they are V or Z rated... This governor can be removed if you have the correct speed-rated tires on the car and the dealer can confirm that...

Also, the reason you're VR6 cannot make any power top-end is not because you have a top-end limiter... It's because the VR6 is not designed to make power on the "top-end"...
There is MUCH more to the top-end than ECU tuning...
This is established by larger, and more numerous valves, higher compression ratio, and most importantly, cam(S) that are designed to breathe at high rpm... None of which the VR6 has...

Besides, the VR6 is a 12 valve engine... In order to breathe efficiently at high engine speed, you need 16 valves, or even 20 (As audi has used in the past). 2 valves simply cannot offer the amount of airflow that 4 valves can... And because heat engines are nothing more than an air pump in reverse, the more airflow the more power, period.

Not to say the VR6 is slow, by no means. Besides they sound great with an exhaust... Its just a totally different animal. It is torquey and that is where it shines...