212 replies to this topic

[Cooperman]

To get a Mini to do 100 mph requires about 80 bhp and a FDR that will allow the revs for peak power at that speed. That probably means a FDR now higher than 3.44:1 giving 100 mph at about 6000 rpm.
I must admit to having seen 7300 rpm in top with a 1330 Cooper 'S' on a tarmac rally special stage and that is around 105 mph.

[Skortchio]

80 bhp from a 998 would take something far more substanital that a stage 1 kit though, monitarily so more than anything I'd imagine based on the requirements to get it from a 1275.

[apdxxx]

At the end of the day no one can say what he's saying isn't correct as you wasn't there to see it. All of this 'physics' stuff is/may be correct but his car did do that speed.

[davies145]

It does take for ever to get there lol, I hav a video you can see at the beginning I was doing 110 bit slowed down to 100 on the speedo it has done that a couple of times doesn't feel nice when doing it feeling like it will destroy it self lol, like I said could have been a tailwind and it was abit down hill

[Skortchio]

Hmm, I'd have stuck to 100mph while streamlining, downhill in a hurricane, that was a one off event for a brief period.

Saying it does 110 repeatedly is pushing into the realms of implausibility.

At the end of the day no one can say what he's saying isn't correct as you wasn't there to see it. All of this 'physics' stuff is/may be correct but his car did do that speed.

You're contradicting yourself there, 'all this physics stuff' IS correct. Mini's are not aerodynamic, the less aerodynamic an object is the more energy it takes to propel it to a given speed. Ever wonder why Jet planes are pointy at the front?
We also know that for a Mini to reach 100mph requires somewhere in the realms of 80bhp.
Said engine is a mostly stock 998 with a stage 1 kit, offering somwhere between 10-15% power improvement if set up correctly and you're lucky.
This takes a modest 40bhp to 46bhp. Using some of that 'math' stuff, it would seem to be a little shy of the 80 required. Not to mention the extra weight of a passenger pushing the required numbers up further.

Whether this silly academic stuff is accurate or not? Well you could show us a nice clear video of the event, say from a slow start (30-40) up to the ton mark with a sat nav showing the speed readout.

I'm not saying you're making it up, but I am highly skeptical. Your speedo might read 100 but a change of wheels / speedo drive / moving the facia / base innacuracy, makes them unreliable as evidence.

Looking back through the thread it's interesting to see that all the Mini's doing north of 90mph with very little engineering work are all owned by young drivers, how weird is that!

[o0OWILKSO0o]

120mph in my 1380. On the autobahn before nearly getting crushed by a old German with a moustache in his 911.

[A362 TTU]

I've posted before but I will post again lol - last post was top speed, where if I recall correctly it was 81mph SatNav.

My car has a Stage 1 just like the 110mph vehicle, mine also has some minor porting on the head and a 3.44 diff.

It will only 'consistently' reach 75mph (this Is dfferent flat roads at different times) - and only 'comfortably' reach 70mph.

Now my car hasn't been Rolling Roaded recently - so it probably would run better with that, but I doubt it will make the difference and push my speeds north of 100mph.

Although I would add that if I myself fitted the wrong speedo drive I would be able to reach 130mph.

[davies145]

Hmm, I'd have stuck to 100mph while streamlining, downhill in a hurricane, that was a one off event for a brief period.

Saying it does 110 repeatedly is pushing into the realms of implausibility.

At the end of the day no one can say what he's saying isn't correct as you wasn't there to see it. All of this 'physics' stuff is/may be correct but his car did do that speed.

You're contradicting yourself there, 'all this physics stuff' IS correct. Mini's are not aerodynamic, the less aerodynamic an object is the more energy it takes to propel it to a given speed. Ever wonder why Jet planes are pointy at the front?
We also know that for a Mini to reach 100mph requires somewhere in the realms of 80bhp.
Said engine is a mostly stock 998 with a stage 1 kit, offering somwhere between 10-15% power improvement if set up correctly and you're lucky.
This takes a modest 40bhp to 46bhp. Using some of that 'math' stuff, it would seem to be a little shy of the 80 required. Not to mention the extra weight of a passenger pushing the required numbers up further.

Whether this silly academic stuff is accurate or not? Well you could show us a nice clear video of the event, say from a slow start (30-40) up to the ton mark with a sat nav showing the speed readout.

I'm not saying you're making it up, but I am highly skeptical. Your speedo might read 100 but a change of wheels / speedo drive / moving the facia / base innacuracy, makes them unreliable as evidence.

Looking back through the thread it's interesting to see that all the Mini's doing north of 90mph with very little engineering work are all owned by young drivers, how weird is that!

I didn't mean 110 the speed it's 110 on the speedo and 100 on the sat nav so I go by sat nav. I don't know what the engine is like could have a different head as it was only ment to be for awhile I had it do never took it apart,

[mini-luke]

Ever wonder why Jet planes are pointy at the front?

There's curved actually as it's more efficient below the speed of sound - hence why concord and supersonic aircraft are pointy. But the point still counts, Mini's are as aerodynamic as a house brick.

[Tomf]

Iv been 125mph in my 1.8 k-series mini, its weird once i hit about 115 everything stopped shaking :S

That was taken off a sat nav and a digital speedo...

I look forward to seeing what my new project can do

[CMXCVIII]

I also have a very long diff

For Pinnochio it was his nose

I've posted before but I will post again lol - last post was top speed, where if I recall correctly it was 81mph SatNav.

My car has a Stage 1 just like the 110mph vehicle, mine also has some minor porting on the head and a 3.44 diff.

It will only 'consistently' reach 75mph (this Is dfferent flat roads at different times) - and only 'comfortably' reach 70mph.

Now my car hasn't been Rolling Roaded recently - so it probably would run better with that, but I doubt it will make the difference and push my speeds north of 100mph.

Although I would add that if I myself fitted the wrong speedo drive I would be able to reach 130mph.

That sounds just like my 998 Stage 1which has good compression and a solid engine and comfortably holds a speedo 80ish uphill and down dale.

FWIW, I've only ever driven one car that was significantly faster than I expected it to be. That was a late '80s Honda Integra 1600 twin cam pre V-Tec I had for a short while, the one with the pop-up headlights. When I decided to see what it would do it was still pulling strongly and accelerating at a speedo 130 and I figured I'd found out all I needed to know! Far from the fastest I've ever driven, but the most amazing!

[firstforward]

Hmm, I'd have stuck to 100mph while streamlining, downhill in a hurricane, that was a one off event for a brief period.

Saying it does 110 repeatedly is pushing into the realms of implausibility.

At the end of the day no one can say what he's saying isn't correct as you wasn't there to see it. All of this 'physics' stuff is/may be correct but his car did do that speed.

You're contradicting yourself there, 'all this physics stuff' IS correct. Mini's are not aerodynamic, the less aerodynamic an object is the more energy it takes to propel it to a given speed. Ever wonder why Jet planes are pointy at the front?
We also know that for a Mini to reach 100mph requires somewhere in the realms of 80bhp.
Said engine is a mostly stock 998 with a stage 1 kit, offering somwhere between 10-15% power improvement if set up correctly and you're lucky.
This takes a modest 40bhp to 46bhp. Using some of that 'math' stuff, it would seem to be a little shy of the 80 required. Not to mention the extra weight of a passenger pushing the required numbers up further.

Whether this silly academic stuff is accurate or not? Well you could show us a nice clear video of the event, say from a slow start (30-40) up to the ton mark with a sat nav showing the speed readout.

I'm not saying you're making it up, but I am highly skeptical. Your speedo might read 100 but a change of wheels / speedo drive / moving the facia / base innacuracy, makes them unreliable as evidence.

Looking back through the thread it's interesting to see that all the Mini's doing north of 90mph with very little engineering work are all owned by young drivers, how weird is that!

I pretty much agree with all you have said.

I remember in the 80's we had a contract repairing vehicles for Gleesons the road builders, they were building part of the M25 near farningham kent. There was one guy in particular that had a 957cc Fiesta that used to really abuse it, the underside was so smashed by rocks and caked with mud. I was told by one of our mechanics to take it for a drive up Farningham hill and so I did. I could pull nearly 120 in a sierra cosworth on this hill but this little Fiesta managed to get 94mph when really it should have only managed 70-75 tops, somehow it hit a point at around 80 that the engine actually became slightly less noisy and sounded more like a hair dryer and it just kept going faster and faster. Later the Gleesons driver chuckled he had seen over 105 on the clock. Nobody could explain why that could happen, it just did.

[Cooperman]

How ever much top speeds are talked about and alleged, there is no way of breaking the laws of physics. The drag coefficient of a Mini is what it is. Aerodynamic drag increases as the square of the speed increase and to do 100 mph requires 80 bhp AND the right gearing to enable it to reach the revs for peak power at that speed.
You can allege whatever you like from sat. navs., speedos, etc, but the fact is that if a Mini does 100 mph on a level road in nil-wind conditions with no downhill run onto the level, then it has 80+ bhp and the correct gearing. There is simply no way around this and anyone who believes otherwise also probably believes that a Boeing 747 can fly supersonically in level flight and that a man can run 100 metres in 7 seconds.

[charie t]

I've only got 79hp, i'm screwed for the 100mph mark then.......

[Skortchio]

I've only got 79hp, i'm screwed for the 100mph mark then.......

Paint something red?