Hi EveryBody,

Any one check the top speed for 15%-17%-19% pully...we compare the 15% & 19%
two MCS on the highway, the accelation of 19% is really awesome..but when the speed over 210km....it seem the 15% S can catch the 19% one gradually.....Look like the small pully of SC only can imprive the TQ and TB response....however at the top speed period...seem no much difference with 15 & 17% pully...

Looking forward to hearing from yr guys comment..

 

Torque and HP will affect how quickly the MCS will get to it's electronically governed top speed of 136 MPH. What you may have seen in differences between the engines of the cars (not all cars come out of the factory equal). Or maybe one had it's windows rolled down (wind resistance) or carried more weight (additional passengers).

 

Well i was clocked with radar(friend) at 157, with 19% and ecu removed governer.....

it was on a two mile straight away we have here..............

 

Damn, I hate it when it does that.

 

>>Well i was clocked with radar(friend) at 157, with 19% and ecu removed governer.....
>>
>>it was on a two mile straight away we have here..............


Yeah I am not sure if I buy this. Not calling anyone a liar, I would just have to see it to believe it. I just can't see getting what is essentially a brick to 157 with maybe if you are lucky 200hp. In this case weight doesn't make a difference. For the Mini it is all about wind resistance, especially at 157.

The top speed on a 2004 Corvette Z06 with 400hp is 171mph. Double the horsepower and considerably more aerodynamic than a Mini and only 14 mph faster.

 

Believe what you want.......

dont for get in you zo6 refrence weight..........

As well , i am way over 200hp, almost but not quite 300...

 

Caddman,

Have you radically lowered your coefficient of drag?

 

I would think the original post of this thread would seem somewhat correct. Particularly if the electronic governor is still working. Seems like a 19% would just get you there a little quicker but, obviously the speed should remain the same.
As for Caddman's 157 mph in 2 miles. My 15% pulley car can only get to 110 in a half mile and around 124 in a mile (radar timed in the half,guesstimate for the mile). I think it would take 2 miles to get to the governed speed of 136. 157 even heavily modified would be an awfully tall order to handle. The laws of physics are hard to beat!

 

>>Believe what you want.......
>>
>>dont for get in you zo6 refrence weight..........
>>
>>As well , i am way over 200hp, almost but not quite 300...

Now that you put the number out there. Is your almost 300hp at the wheels or the crank? If at the crank, what is your wheel hp? I also would like to know what you have on your car that gets you near 300?

Again weight is a percentage of the consideration, but far and away the greatest is the coefficient of drag. The mini is a brick so it takes a lot to get it going faster and faster. Also, the increasing your top speed requires an exponential amount of horsepower. The coefficient of drag acts as a weight on the car and therefore the faster you go, the more the "Mini weighs" in relation to the drag force.

The Z06 has a drag coefficient of .29 compared to .36 for the Cooper S. The Z06 has 405 hp and 400ft/lbs of torque, compared to lets say 285hp for your S and maybe 220 ft/lbs of torque. The Z06 weighs 3086 compard to the 2650 for the Cooper S. This means the Z06 is pushing 7.6 lbs for every horsepower compared o your S which is 9.3 lbs for every horsepower. Plus the Corvette has nearly double the torque and the Corvette is about 20% more efficient through the air. The Corvette is 20% more efficient in every area than your S, but yet your S is only 15% slower. That is where the numbers don't make sense. Add that to the fact that the drag coefficient has an exponential impact to top speed, I just don't see your car hitting 157mph. Maybe 145mph, I could believe.

By the way the Z06 is right around 180 mph. My bad on the first numbers.

 

wheel hp, i do agree with your coeffienent of drag, never said i didnt....as far as mods lets see, obvious custom head, cam, internals reworked, Modded supercharger with 19%, custom water to intercooler, custom header and exhaust, reworked valvetrain, dogbox trany,etc etc....now i do want to mention this is my race prepared car, so alot of weight has been taken out of the car, and actually i did miss type it was 154, not much diffrent but an error on my behalf ... and as far as the two miles, i didnt start the 2 mile straight at zero, i started about 80-85 there is a long sweeper in to the straight, then another long sweep out, but i do definatly begin to slow before it......

Now i do want people to realize i do have two MINI's, my day 2 day MINI, with 19% only hits around 145ish, but then agian its not stock either......

 

you already have the dog-box tranny?

how is it?

 

>>wheel hp, i do agree with your coeffienent of drag, never said i didnt....as far as mods lets see, obvious custom head, cam, internals reworked, Modded supercharger with 19%, custom water to intercooler, custom header and exhaust, reworked valvetrain, dogbox trany,etc etc....now i do want to mention this is my race prepared car, so alot of weight has been taken out of the car, and actually i did miss type it was 154, not much diffrent but an error on my behalf ... and as far as the two miles, i didnt start the 2 mile straight at zero, i started about 80-85 there is a long sweeper in to the straight, then another long sweep out, but i do definatly begin to slow before it......
>>
>>Now i do want people to realize i do have two MINI's, my day 2 day MINI, with 19% only hits around 145ish, but then agian its not stock either......

Okay now that the story has totally changed from a Mini with 19% pulley and ECU going to 157, to a highly modified Mini going to 154. These numbers are starting to become a little more believable. Do you have a dyno showing your output. If you have 300hp on your car at the wheels, then you have probably the fastest Mini in North America. It looks like you have spent a good $20,000 on mods for this car. Is that correct? A $40,000-$45,000 Mini. Wow!

 

>>lets see, obvious custom head, cam, internals reworked, Modded supercharger with 19%, custom water to intercooler, custom header and exhaust, reworked valvetrain, dogbox trany,etc etc....<<

This could very well make YOU the fastest AND the lightest.

 

BlueMCS,

Amazingly, your sheep has become EVEN MORE disturbing.

 

i dont know about lightest.....

Dog box tranny is great for racing, nut not for the everyday street car, first is a litlle tricky(and reverse), the closest comparison i can make it is like a really light flywheel, which i also have, but there is a difference, but for fast shifts its hard to beat, a little snatchy though... as well as far as total spent on the car i dont want to think about it... therefoe i havent totaled the receipts, at least not unitl i do my taxes.... Wow its true you sheep is getting nuttier...

I have posted a dyno in the past, let me see if i can find it, and repost....

 

i've seen all those mods available on the web.... didn't expect to see anyone who already had them though!!!

 

i've seen all those mods available on the web.... didn't expect to see anyone who already had them though!!!

 

ive been working on this car for almost a 6 months, and still not finished but almost.... i hope to be racing in tennesse in couple of weeks, mid march....

 

caddman wrote today:
Cat & Dog Racing wrote today:
http://www.webbmotorsports.com/forum...amp;highlight=

So, have you have a chance to play with it or not? :???:

 

that speed is very easy to meet by spending less that 10,000 if you do your own work on the car not that i would know

 

i have played with it very little, and will be playing with it more soon......

 

how often do you really go this fast anyway....

as often as you need to go this fast, STOCK seems to do the trick.

 

I can't tell about the US MINIs, but mine is not electronically governed to 136MPH.
It is nicely doing 210-215 km/h on the Autobahn (bone stock MCS, two people, AC on, 6th gear, GPS measured speed), which is solely limited by air drag. I have not tested the 5th gear/rev. limiter limited top speed, might be little higher.

Kai

 

from aero - physics 101

- the weight has nothing to do with top speed (except as related through the tire rolling resistance.) it does matter for accelleration.

- the coefficient of drag is not the end number to consider. the drag force depends on the product of the coefficient of drag (cd) multiplied by the reference area. pushing a 1in x 1in thing with a cd of X through the air is easier (by 1/100) than pushing a 10in x 10in thing with the same cd. so you have to compare the mini reference area times the cd of the mini to the vette area times the cd of the vette.

-the drag varies as the square of the air speed. the drag at 120mph is 4 times what it is at 60mph. but it gets worse: the power required varies as the cube of the speed ratio. so the horsepower required at 120 is 8 times what it is at 60!

-these mini speedos are certainly overestimating the actual speed. for talkin' purposes we'll pretend they're all off by the same % of the speed.

professor couldabeen flyboy 2160

 

Someone caught him on film...