Add about 25%. Anything above that and you've got a decent chance of getting pulled over if seen. Not that you're completely in the clear if you do below that though....
I usually do 60 in 50's, 100 in 80's, and 130 on the 400 series if I'm driving alone. I'll pick up the speed by 10km/h if others are doing it, especially behind me. I've logged >250,000km that way and never been pulled over.
That is really cool but I bet you got Ontario plates. The out of town cars stick out. I never been pulled over in Canada, not once but I stay close to the limit, 5 over max in the 50 zones. I have done 130 for short times with traffic and 120 for over 30 mins as long as others were passing me often.
The semi trucks are now limited to 105, that stinks. They used to help keep traffic a moving. Once me and this semi were passing all the other semi trucks, he was doing a steady 120 and I was hanging with him and then pulling away at times hitting 130-135--this was before stunt driving law came to be. Then I would back off at times and the semi would catch up and pass me or come close.
We dodged a few cops. If I seen the semi slow down, I did also, then when he started to gain speed I would jump ahead. I come up fast on people in the left lanes and they would move over for me and the semi was able to pick up more speed. I was slowing down at times to keep a space open for his big rig. We were going at it for over an hour and drove pass mark units hiding in the ditches, the 3rd time we slip pass near the speedlimt, doing about 112-- I got scared and decided to let him on go. This was on the long 401 stretch between Windsor from Hamilton . Twice i was pushing 130--135 and noticed the semi backing way off or it was blind spot--a dip in the road or a curve---and I would brake it down and go pass some cop sitting with radar. If I was ahead I leave my foot enough on the brake to keep my brake lights on the whole time coming up on the unit--so traffic behind me hopefully would slow on down also.
People used to pump their brakes to warn drivers of cops of ahead, ah the good old 55 mph limit days. If you seen brake lights flashing on and off you would slow down and then do the same with your brakes coming up on a cop. Everybody didn't do it but 10% of people did...not today, nobody gives shit about anybody
I never use radar detectors, they are legal here but my eyes and brain works better. Too often traffic slows down for nothing or too early. I like backing off 30 seconds early, not 5 mins
Today thou in Canada I just try to go 115 or slower now, unless everybody is zipping past. I'm getting older and those semi trucks are fucked. I'm passing them right up at 115
