I did 135 last week and did 144 today. The speedo said just a little over 150 but GPS said 144. I don't know what governs top speed but if it is a chip, I will eventually mess with that. I want a good solid 150 so I will eventually get a CAI and an exhaust. Also, I would like a very moderate drop but I just don't want the problems associated with one I scrape every now and then just backing out of my driveway.
I'm from Canada, i did 235km/h in my just-a-cooper. It was on a closed highway, in northern ontario. at that speed i burnt a 1/4 tank of gas in about 5 minutes. That was the speed on my odometer, the radar was 236.5. This was a racing event, not a pull over
235kmp = 146 mph for those who are like me and need to see MPH. This thread is almost starting to look more like the postings of chassis dyno results. Fiction and fact?
Makes for good conversation around a :beer Mark no one is demonstrating the distance to achieve some of the posts. Most any vehicle in a long enough stretch of road with marginal uncontrolled conditions i.e. road, weather,mechanical, etc., can reach some rather high MPH to which never designed intended?
Well from the last time I had stopped, I had about 50 miles of flat straight fairly new blacktop, with dry calm conditions to wind it up:beer Mark
If the factory says top speed is 135, how are these guys hitting close to 150 in what they claim are almost stock cars? Top speed is a mathematical function of hp/vs wind resistance, which it why it took 1200 hp vs 1001 to get 6 extra mph in a Veyron..... Seems to me the extra road doesn't do anything to help, unless it's down the side of a mountain!
According to the law of "terminal velocity" dropping it off the side of the mountain wouldn't help.........
There's a huge difference between 250+ and 130-50. The difference between 130 and 150 is not nearly as huge as 200 and 250 let alone 250 and 270 for instance. I'm not sure about people in stock cars, but I can tell you, my car was making 350 HP at the time I did that run. So it got there very quickly and with ease. I had changed the rev limiter/speed limiter as well. So I was in 5th at 7800 ish RPMs and counting. The main reason extra road helps is the car will creep up in speed over time. When you get to the point the resistance is really huge, you may not realize you're still accelerating. So it's a slow process. Of course there is a point you are out of power and can no longer push any faster. Also, in my case, traveling at or exceeding 150 MPH, the car is covering 2.5 miles a minute. So road helps. I've taken a STOCK GP and done nothing but raised the Rev limit/speed limiter and it got to 150 with out much issue. However, it's still much more scary than in my car, as it took quite a bit longer. Basically getting to the 200 mark is really where things start to get crazy. I've seen guy blow by me at 170+ on a bike like I was parked. They were going 190+. But to get OVER that 200 MPH mark is where things get wacky. We did some calculations back then based on some wind tunnel figures. It would take 600-700 HP to get the mini to 200 MPH. So you can see, like the Veyron, getting to X is easy. It's that last step to Y that although it's only the next letter, takes so much more. Dunno if any of that helps...
Well said.. Kinda like db's in sound for stereo's once you get to a certain point it takes double the watts to pick up 3 dp's.. ( how loud it is for those I lost )
Aside from wind resistance what would be the top speed for a MINI? Redline in 6th gear? I know you can raise the redline somewhat but assuming stock gearing.
From my experience, 6th is really too tall to run up that high. For instance in my car, when I shifted to 6th I lost 10 mph lol Now we speculated on some things for why that was but I was never really sure. It coulda actually been that since it's a cruising gear the ECU closed the TB a little bit. It's not made to run wide open in that gear. OOhhhh it was just too tall a gear. I also wasn't waiting for it to climb back up either. As for the actual calculation of what is technically possible. I forget. I'd have to look at it again to figure it out. I think it was around 173 mph @ 6950 RPM. Based on that numer, with a bump to 8000 rpm you'd see 199 mph
It helps for this estimate to know: What year? What tire diameter/size? What do you call red line? But as an example: Perfect conditions/ 0 wind @sea level, flat no crown tarmac Not factoring in WHP Late model MCS 1st Gen 6 speed 59.6 tire diameter Sixth Gear ratio 1.089 ratio/ MPH per 1k= 23.5 @ 7000 RPM =164mph
1st 43 mph@7000/GR/4.167/OR11.418 2nd 68 mph@7000/GR/2.619/OR7.176 3rd 91 mph@7000/GR/1.333/OR5.399 4th 111 mph@7000/GR/1.089/OR4.410 5th 134 mph@7000/GR/1.333/OR3.652 6th 164 mph@7000/GR1.089/OR2.984
I just remembered a story, I was at a bar(people always tell the truth at the bar) and we got to car talk, I was with another MINI guy and of course we mention out MINI's. Well this guy claimed him and his buddy swapped a turbo flat 6 from a Porsche 911 into a mini and were doing well over 200MPH.